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2948 | <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>NORDSCHLEIFE 3D — Make Future</title>
<style>
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html,body{background:#000;color:#fff;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;height:100%;width:100%;overflow:hidden;-webkit-font-smoothing:antialiased;touch-action:none;user-select:none}
body{display:flex;align-items:center;justify-content:center}
.hdr{position:fixed;top:0;left:0;right:0;padding:clamp(.6rem,1.5vw,1.2rem) clamp(.8rem,2.5vw,2rem);display:flex;justify-content:center;align-items:center;z-index:100}
.wm{position:absolute;left:clamp(.8rem,2.5vw,2rem);font-size:.55rem;font-weight:500;letter-spacing:.3em;text-transform:uppercase;color:#222;text-decoration:none;transition:color .5s ease}
.wm:hover{color:#666}
.scores{display:flex;gap:1.2rem;font-size:.55rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;opacity:0;transition:opacity .5s ease}
.scores.show{opacity:1}
.sc{color:#666}
.sc b{font-weight:600;color:#fff}
.g{display:grid;gap:0;position:fixed;inset:0}
.c{position:relative}
.f{background:#fff;opacity:0;transform:scale(0);animation:enter .7s cubic-bezier(.16,1,.3,1) forwards;animation-delay:var(--d,0s)}
@keyframes enter{to{opacity:1;transform:scale(1)}}
.f.out{animation:flipOut .45s cubic-bezier(.55,.085,.68,.53) forwards!important;animation-delay:var(--fd,0s)!important}
@keyframes flipOut{0%{opacity:1;transform:scale(1) rotateX(0)}100%{opacity:0;transform:scale(.3) rotateX(90deg)}}
#three-container{position:fixed;inset:0;display:none;z-index:1}
#three-container.show{display:block}
#three-container canvas{display:block;width:100%!important;height:100%!important}
.prompt{position:fixed;bottom:18%;left:0;right:0;text-align:center;font-size:.55rem;font-weight:400;letter-spacing:.35em;text-transform:uppercase;color:#333;animation:blink 1.2s steps(1) infinite;z-index:200;transition:opacity .3s}
.prompt.hidden{opacity:0;pointer-events:none;animation:none}
@keyframes blink{0%,45%{opacity:1}50%,95%{opacity:0}100%{opacity:1}}
#hud-section{position:fixed;bottom:12%;left:0;right:0;text-align:center;font-size:clamp(.5rem,.8vw,.7rem);font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:#444;z-index:100;opacity:0;transition:opacity .3s}
#hud-flash{position:fixed;top:35%;left:0;right:0;text-align:center;font-size:clamp(1rem,2.5vw,1.8rem);font-weight:600;letter-spacing:.15em;z-index:100;opacity:0;pointer-events:none}
#vignette{position:fixed;inset:0;z-index:2;pointer-events:none;opacity:0;transition:opacity .3s;box-shadow:inset 0 0 150px 40px rgba(0,0,0,0.8)}
#speed-lines{position:fixed;inset:0;z-index:2;pointer-events:none;opacity:0}
#progress-bar{position:fixed;bottom:0;left:0;height:2px;background:rgba(255,255,255,0.15);z-index:3;transition:width .1s linear}
#race-banner{position:fixed;top:clamp(3rem,8vh,5rem);left:0;right:0;text-align:center;font-size:.65rem;font-weight:600;letter-spacing:.25em;text-transform:uppercase;color:#888;z-index:100;pointer-events:none;display:none}
#race-banner.show{display:block}
#minimap-wrap{position:fixed;bottom:clamp(3rem,10vh,5rem);right:clamp(.6rem,2vw,1.2rem);width:120px;height:120px;border:1px solid rgba(255,255,255,0.12);border-radius:4px;overflow:hidden;z-index:100;display:none;background:rgba(0,0,0,0.35)}
#minimap-wrap.show{display:block}
#minimap{position:absolute;inset:0;width:100%;height:100%}
#standings-strip{position:fixed;top:clamp(2.2rem,6vh,3.5rem);right:clamp(.6rem,2vw,1.2rem);max-width:min(220px,40vw);font-size:.45rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:#555;z-index:100;display:none;text-align:right;line-height:1.5}
#standings-strip.show{display:block}
#menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.56);z-index:220;display:none;align-items:center;justify-content:center;padding:1rem}
#menu-overlay.show{display:flex}
#menu-card{width:min(560px,92vw);background:rgba(10,12,18,0.94);border:1px solid rgba(255,255,255,0.18);padding:1rem 1.1rem;color:#d9deea}
#menu-title{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:#a9b4c8;margin-bottom:.8rem}
.menu-row{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:.8rem}
.menu-btn{background:#151a24;border:1px solid rgba(255,255,255,0.2);color:#d9deea;padding:.45rem .6rem;font-size:.55rem;letter-spacing:.12em;text-transform:uppercase;cursor:pointer}
.menu-btn:hover{background:#1d2533}
#menu-info{font-size:.56rem;line-height:1.5;letter-spacing:.05em;color:#aeb9cf;white-space:pre-line}
.ftr{position:fixed;bottom:0;left:0;right:0;padding:clamp(.6rem,1.5vw,1.2rem) clamp(.8rem,2.5vw,2rem);display:flex;justify-content:space-between;align-items:center;z-index:100}
.ftr span{font-size:.4rem;font-weight:300;letter-spacing:.2em;text-transform:uppercase;color:#181818}
::selection{background:#fff;color:#000}
</style>
<link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' fill='%23000'/%3E%3Crect x='14' y='14' width='4' height='4' fill='%23fff'/%3E%3C/svg%3E">
<!-- Three.js v0.162.0 via jsdelivr CDN -->
<script type="importmap">
{ "imports": {
"three": "https://cdn.jsdelivr.net/npm/three@0.162.0/build/three.module.js",
"three/addons/": "https://cdn.jsdelivr.net/npm/three@0.162.0/examples/jsm/"
}}
</script>
</head>
<body>
<header class="hdr">
<a href="/" class="wm">Make Future</a>
<div class="scores" id="scores">
<div class="sc">Lap <b id="ltv">0:00.0</b></div>
<div class="sc">Best <b id="btv">--</b></div>
<div class="sc"><b id="spdv">0</b> km/h</div>
<div class="sc"><b id="altv">520</b>m</div>
<div class="sc">G<b id="gearv">1</b></div>
<div class="sc" id="mp-status" style="display:none"><b id="mp-count">0</b> online</div>
</div>
</header>
<div class="g" id="g"></div>
<div id="three-container"></div>
<div class="prompt" id="prompt">Nordschleife 3D — Press any key</div>
<div id="hud-section"></div>
<div id="hud-flash"></div>
<div id="vignette"></div>
<canvas id="speed-lines"></canvas>
<div id="progress-bar"></div>
<div id="race-banner"></div>
<div id="minimap-wrap"><canvas id="minimap" width="120" height="120"></canvas></div>
<div id="standings-strip"></div>
<div id="menu-overlay">
<div id="menu-card">
<div id="menu-title">Menu</div>
<div class="menu-row">
<button id="menu-resume" class="menu-btn">Resume (M)</button>
<button id="menu-reset" class="menu-btn">Reset Car</button>
<button id="menu-mode" class="menu-btn">Current Round</button>
<button id="menu-guide" class="menu-btn">How To Play</button>
</div>
<div id="menu-info"></div>
</div>
</div>
<footer class="ftr">
<span>Arrows / WASD · M = Menu · T = race/solo sprint (Nords)</span>
<span>Nordschleife 20.8km</span>
</footer>
<script>window.NORD_MP_RELAY_URL = 'wss://makefuture.ro/ws';</script>
<script type="module">
import * as THREE from 'three';
import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
import { UnrealBloomPass } from 'three/addons/postprocessing/UnrealBloomPass.js';
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
// =====================================================================
// ZzFX - Zuper Zmall Zound Zynth v1.3.2 ~ MIT License ~ Frank Force
// =====================================================================
const zzfxV=.3;let zzfxX;
function zzfx(v,r,f,a,s,re,sh,sc,sl,ds,pj,pjt,rt,n,m,bc,d,sv,dc,tr){
try{if(!zzfxX)zzfxX=new(window.AudioContext||window.webkitAudioContext);if(zzfxX.state==='suspended')zzfxX.resume();
const P=Math.PI*2,R=44100;let b=[],i=0,j=0,T=0,F=0,c=0,q=1;v=(v!=null?v:1)*zzfxV;r=r||.05;a=a||0;s=s||0;re=re||.1;sh=sh||0;sc=sc||1;sl=sl||0;ds=ds||0;pj=pj||0;pjt=pjt||0;rt=rt||0;n=n||0;m=m||0;bc=bc||0;d=d||0;sv=sv!=null?sv:1;dc=dc||0;tr=tr||0;let S=sl,O=f=f||220;
f*=(1+r*2*Math.random()-r)*P/R;sl*=500*P/R/R;ds*=500*P/R/R/R;pj*=P/R;m*=P/R;pjt*=R;rt=rt*R|0;a=a*R+9;dc*=R;s*=R;re*=R;d*=R;
for(let L=a+dc+s+re+d|0;i<L;b[i++]=T*v){if(!(++c%(bc*100|0))){T=sh?sh>1?sh>2?sh>3?sh>4?Math.sin((F%P)**3):Math.max(Math.min(Math.tan(F),1),-1):1-(2*F/P%2+2)%2:1-4*Math.abs(Math.round(F/P)-F/P):Math.sin(F):Math.sin(F);T=(rt?1-tr+tr*Math.sin(P*i/rt):1)*(sh>4?T:Math.abs(T)**sc*(T<0?-1:1))*(i<a?i/a:i<a+dc?1-((i-a)/dc)*(1-sv):i<a+dc+s?sv:i<L-d?(L-i-d)/re*sv:0);T=d?T/2+(d>i?0:(i<L-d?1:(L-i)/d)*b[i-d|0]/2/v):T}f+=sl+=ds;F+=f+f*n*Math.sin(i**5);if(q&&++q>pjt){f+=pj;O+=pj;q=0}if(rt&&!(++j%rt)){f=O;sl=S;q=q||1}}
const buf=zzfxX.createBuffer(1,b.length,R);buf.getChannelData(0).set(b);const src=zzfxX.createBufferSource();src.buffer=buf;src.connect(zzfxX.destination);src.start()}catch(e){}}
// =====================================================================
// MAKE FUTURE INTRO (shared across all experiments)
// =====================================================================
const FONT={M:[[1,1,1,1,1],[1,0,1,0,1],[1,0,0,0,1]],A:[[1,1,1],[1,1,1],[1,0,1]],K:[[1,0,1],[1,1,0],[1,0,1]],E:[[1,1,1],[1,1,0],[1,1,1]],F:[[1,1,1],[1,1,0],[1,0,0]],U:[[1,0,1],[1,0,1],[1,1,1]],T_:[[1,1,1],[0,1,0],[0,1,0]],R:[[1,1,0],[1,1,0],[1,0,1]]};
const vw=window.innerWidth,vh=window.innerHeight;
let tCS=Math.round(Math.min(vw,vh)/16);tCS=Math.max(tCS,24);tCS=Math.min(tCS,60);
const COLS=Math.max(25,Math.floor(vw/tCS)),ROWS=Math.max(9,Math.floor(vh/tCS));
const cs=Math.min(vw/COLS,vh/ROWS);
const tOX=Math.floor((COLS-23)/2),tOY=Math.floor((ROWS-7)/2),mI=Math.floor((23-17)/2);
const FILLED={};
[{c:'M',o:0},{c:'A',o:6},{c:'K',o:10},{c:'E',o:14}].forEach(l=>{FONT[l.c].forEach((row,ri)=>{row.forEach((p,ci)=>{if(p)FILLED[(tOY+ri)+','+(tOX+mI+l.o+ci)]=true})})});
[{c:'F',o:0},{c:'U',o:4},{c:'T_',o:8},{c:'U',o:12},{c:'R',o:16},{c:'E',o:20}].forEach(l=>{FONT[l.c].forEach((row,ri)=>{row.forEach((p,ci)=>{if(p)FILLED[(tOY+4+ri)+','+(tOX+l.o+ci)]=true})})});
const gridEl=document.getElementById('g');
gridEl.style.cssText=`grid-template-columns:repeat(${COLS},${cs}px);grid-template-rows:repeat(${ROWS},${cs}px);width:${COLS*cs}px;height:${ROWS*cs}px;left:${Math.floor((vw-COLS*cs)/2)}px;top:${Math.floor((vh-ROWS*cs)/2)}px`;
const board=[];
{const f=document.createDocumentFragment();
for(let r=0;r<ROWS;r++){board[r]=[];for(let c=0;c<COLS;c++){const el=document.createElement('div');
if(FILLED[r+','+c]){el.className='c f';el.style.cssText=`--d:${(.3+Math.random()*.8).toFixed(3)}s;--fd:${(Math.random()*.7).toFixed(3)}s`}
else el.className='c';board[r][c]=el;f.appendChild(el)}}gridEl.appendChild(f)}
// =====================================================================
// NORDSCHLEIFE TRACK — loaded from data/*.json (see scripts/build-nordschleife-data.mjs)
// =====================================================================
let spline;
let splineLen = 0;
let splinePoints = [];
let trackSamples = [];
let nordSectors = [];
let nordCheckpoints = [];
let nordLandmarks = [];
let nordTerrainCfg = null;
let nordProps = [];
let nordsWorldGroup = null;
let trackReady = false;
let trackLoadError = null;
let trackMeta = { lengthM: 20800, name: 'Nordschleife' };
let minimapBounds = { minX: -1, maxX: 1, minZ: -1, maxZ: 1 };
let nordRoadMesh = null;
let nordTerrainMesh = null;
let nordDriveMeshes = [];
let nordGroundMeshes = [];
let lastNearestTrack = null;
let lastGroundSource = 'track';
let lastSurfaceKind = 'road';
let lastRoadY = 0;
let lastTerrainY = 0;
let lastGripBudget = 0;
let lastSlipAmount = 0;
const debugTrackMode = new URLSearchParams(location.search).get('debug') === 'track';
const debugGuideMode = debugTrackMode && new URLSearchParams(location.search).get('guides') === '1';
let trackDebugEl = null;
let sessionPerf = { netIn: 0, netOut: 0, lastUiTs: 0, msgIn: 0, msgOut: 0 };
function getSectionAt(t) {
const u = ((t % 1) + 1) % 1;
for (const s of nordSectors) {
if (u >= s.t0 && u < s.t1) return { name: s.name, alt: String(s.altM), grip: s.grip };
}
const last = nordSectors[nordSectors.length - 1];
return last ? { name: last.name, alt: String(last.altM), grip: last.grip } : { name: 'Track', alt: '520', grip: 1 };
}
function getSectionOverrideAt(t) {
const overrides = nordTerrainCfg?.sectionOverrides || [];
const u = ((t % 1) + 1) % 1;
for (const o of overrides) {
if (u >= o.t0 && u < o.t1) return o;
}
return null;
}
// Tire screech
let screechCD = 0;
function sfxScreech() { if (screechCD > 0) return; zzfx(.12, .1, 80, .01, .06, .04, 4, 0, 0, 0, 0, 0, 0, .3); screechCD = 0.5; }
// Crash sound: metallic bang with falling pitch and crunch noise
// vol scaled by impact severity (0-1)
function sfxCrash(vol) {
const v = Math.max(0.05, Math.min(0.8, vol));
zzfx(v, 0.35, 130, 0.001, 0.06, 0.35, 0, 0.4, -0.5, 0, 0, 0, 0, 0.7, 0, 6, 0, 0.35);
}
// Effective collision sphere radius per car (meters)
const CRASH_DIST = 5.0;
const CRASH_DIST_SQ = CRASH_DIST * CRASH_DIST;
const PAL = ['#ff3d00','#0066ff','#b8ff00','#ff006e','#00f5d4','#9d4edd','#ffbe0b','#ff6d00','#20c997','#7b68ee','#00ff41','#ff2d95','#00d4aa','#ff8a00','#ef476f'];
// =====================================================================
// THREE.JS SETUP
// =====================================================================
const container = document.getElementById('three-container');
const promptEl = document.getElementById('prompt');
const scoresEl = document.getElementById('scores');
const flashEl = document.getElementById('hud-flash');
const sectionEl = document.getElementById('hud-section');
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
renderer.setSize(vw, vh);
renderer.setClearColor(0x080810);
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 1.8;
container.appendChild(renderer.domElement);
const scene = new THREE.Scene();
scene.fog = new THREE.Fog(0x060810, 150, 900);
const camera = new THREE.PerspectiveCamera(65, vw / vh, 0.5, 3000);
// Post-processing: bloom for emissive glow
const composer = new EffectComposer(renderer);
composer.addPass(new RenderPass(scene, camera));
const bloomPass = new UnrealBloomPass(new THREE.Vector2(vw, vh), 0.35, 0.4, 0.88);
composer.addPass(bloomPass);
// Lighting
scene.add(new THREE.AmbientLight(0x8899aa, 1.5));
const sun = new THREE.DirectionalLight(0xccddee, 2.0);
sun.position.set(300, 500, 200);
scene.add(sun);
scene.add(new THREE.HemisphereLight(0x556677, 0x222233, 1.0));
// Sky dome with stars
const skyGeo = new THREE.SphereGeometry(2000, 32, 16);
const skyMat = new THREE.ShaderMaterial({
side: THREE.BackSide, uniforms: {},
vertexShader: `varying vec3 vPos; void main(){ vPos=position; gl_Position=projectionMatrix*modelViewMatrix*vec4(position,1.0); }`,
fragmentShader: `varying vec3 vPos;
float hash(vec2 p){ return fract(sin(dot(p,vec2(127.1,311.7)))*43758.5453123); }
void main(){
vec3 dir=normalize(vPos); float h=dir.y;
// Rich night sky gradient
vec3 zenith=vec3(0.005,0.008,0.03);
vec3 mid=vec3(0.01,0.015,0.04);
vec3 horizon=vec3(0.025,0.02,0.04);
vec3 below=vec3(0.01,0.01,0.015);
vec3 col;
if(h>0.3) col=mix(mid,zenith,(h-0.3)/0.7);
else if(h>0.0) col=mix(horizon,mid,h/0.3);
else col=mix(horizon,below,min(1.0,-h*3.0));
// Stars: only above horizon, multiple layers
if(h>0.02){
vec2 st=dir.xz/(h+0.15)*150.0;
float s1=hash(floor(st));
if(s1>0.995) col+=vec3(smoothstep(0.995,1.0,s1)*0.6); // bright stars
vec2 st2=dir.xz/(h+0.2)*300.0;
float s2=hash(floor(st2)+vec2(31.7,17.3));
if(s2>0.997) col+=vec3(smoothstep(0.997,1.0,s2)*0.3); // dim stars
}
// Subtle warm horizon glow
float glow=exp(-abs(h)*6.0)*0.015;
col+=vec3(glow*1.5,glow*0.8,glow*0.5);
gl_FragColor=vec4(col,1.0);
}`
});
const skyMesh = new THREE.Mesh(skyGeo, skyMat);
scene.add(skyMesh);
const moonMesh = new THREE.Mesh(new THREE.SphereGeometry(12,16,16), new THREE.MeshBasicMaterial({color:0xddddcc}));
moonMesh.position.set(500, 800, -300); // relative to sky center
scene.add(moonMesh);
nordsWorldGroup = new THREE.Group();
scene.add(nordsWorldGroup);
// =====================================================================
// BUILD TRACK GEOMETRY (after GPX pipeline loads spline + JSON)
// =====================================================================
const ROAD_W = 8; // half-width
const SEGS = 3000;
const CAR_CLEARANCE = 0.06;
function sampleTrackAt(t) {
if (!trackSamples.length) return new THREE.Vector3();
const u = ((t % 1) + 1) % 1;
const f = u * trackSamples.length;
const i = Math.floor(f) % trackSamples.length;
const j = (i + 1) % trackSamples.length;
const mix = f - i;
const a = trackSamples[i];
const b = trackSamples[j];
return new THREE.Vector3(
a.x + (b.x - a.x) * mix,
a.y + (b.y - a.y) * mix,
a.z + (b.z - a.z) * mix
);
}
function sampleTrackTangentAt(t) {
if (trackSamples.length < 2) return new THREE.Vector3(0, 0, 1);
const step = 1 / trackSamples.length;
return sampleTrackAt(t + step).sub(sampleTrackAt(t - step)).normalize();
}
function getRightAt(t) {
const tan = spline.getTangentAt(((t % 1) + 1) % 1).normalize();
const up = new THREE.Vector3(0, 1, 0);
return new THREE.Vector3().crossVectors(tan, up).normalize();
}
function getTrackSurface(offsetM) {
const abs = Math.abs(offsetM);
if (abs <= ROAD_W) return { kind: 'road', grip: 1, drag: 0 };
if (abs <= ROAD_W + 0.8) return { kind: 'curb', grip: 0.74, drag: 0.2 };
if (abs <= ROAD_W + 5) return { kind: 'shoulder', grip: 0.52, drag: 0.58 };
return { kind: 'grass', grip: 0.28, drag: 1.45 };
}
function getRoadRibbonY(nearest) {
if (!nearest) return 0;
return getTrackFrameY(nearest.t, nearest.signedOffset || 0);
}
function getTrackFrameY(t, offsetM) {
const pos = spline.getPointAt(t);
const ov = getSectionOverrideAt(t);
const roadLift = Number(ov?.roadYOffset) || 0;
const roadBank = Number(ov?.bank) || 0;
const lateral = Math.max(-1, Math.min(1, offsetM / ROAD_W));
return pos.y + 0.05 + roadLift + roadBank * lateral;
}
function findNearestOnSamples(wx, wz, samples) {
if (!samples.length) return { t: 0, dist: 1e9, y: 0, signedOffset: 0, progressM: 0, tangentX: 0, tangentZ: 1 };
let bestD = Infinity;
let best = null;
const n = samples.length;
for (let i = 0; i < n; i++) {
const a = samples[i];
const b = samples[(i + 1) % n];
const vx = b.x - a.x;
const vz = b.z - a.z;
const lenSq = vx * vx + vz * vz;
const u = lenSq > 0 ? Math.max(0, Math.min(1, ((wx - a.x) * vx + (wz - a.z) * vz) / lenSq)) : 0;
const x = a.x + vx * u;
const z = a.z + vz * u;
const dx = wx - x;
const dz = wz - z;
const d = dx * dx + dz * dz;
if (d < bestD) {
const distM = a.distanceM != null && b.distanceM != null
? (i === n - 1 ? a.distanceM + (trackMeta.lengthM - a.distanceM) * u : a.distanceM + (b.distanceM - a.distanceM) * u)
: ((i + u) / n) * trackMeta.lengthM;
const t = ((distM / Math.max(1, trackMeta.lengthM)) % 1 + 1) % 1;
const y = a.y + (b.y - a.y) * u;
const len = Math.max(1e-6, Math.sqrt(lenSq));
const tx = vx / len;
const tz = vz / len;
const rx = -tz;
const rz = tx;
bestD = d;
best = {
t,
dist: Math.sqrt(d),
y,
signedOffset: (wx - x) * rx + (wz - z) * rz,
progressM: distM,
tangentX: tx,
tangentZ: tz,
rightX: rx,
rightZ: rz,
centerX: x,
centerZ: z,
};
}
}
return best;
}
function _disposeObject3D(root) {
root.traverse((ch) => {
if (ch.geometry) ch.geometry.dispose();
if (ch.material) {
const mats = Array.isArray(ch.material) ? ch.material : [ch.material];
for (const m of mats) {
if (m.map) m.map.dispose();
m.dispose();
}
}
});
}
function buildNordschleifeWorld() {
if (!spline || !nordsWorldGroup) return;
while (nordsWorldGroup.children.length) {
const ch = nordsWorldGroup.children[0];
nordsWorldGroup.remove(ch);
_disposeObject3D(ch);
}
nordRoadMesh = null;
nordTerrainMesh = null;
nordDriveMeshes = [];
nordGroundMeshes = [];
const add = (o) => { nordsWorldGroup.add(o); return o; };
const addGround = (o) => {
o.userData.nordGround = true;
nordGroundMeshes.push(o);
return add(o);
};
const addDrive = (o) => {
o.userData.nordDrive = true;
nordDriveMeshes.push(o);
return addGround(o);
};
// --- Road mesh (CLOSED LOOP) with vertex color variation ---
{
const verts = [], idx = [], uvs = [], colors = [];
for (let i = 0; i <= SEGS; i++) {
const t = i / SEGS;
const pos = spline.getPointAt(t % 1);
const right = getRightAt(t % 1);
const ov = getSectionOverrideAt(t);
const roadLift = Number(ov?.roadYOffset) || 0;
const roadBank = Number(ov?.bank) || 0;
const L = pos.clone().addScaledVector(right, -ROAD_W);
const R = pos.clone().addScaledVector(right, ROAD_W);
L.y += 0.05 + roadLift - roadBank;
R.y += 0.05 + roadLift + roadBank;
verts.push(L.x, L.y, L.z, R.x, R.y, R.z);
uvs.push(0, t * 500, 1, t * 500);
const base = 0.25 + Math.sin(t * 200) * 0.02;
colors.push(base * 0.85, base * 0.85, base * 0.88);
colors.push(base * 0.85, base * 0.85, base * 0.88);
if (i < SEGS) {
const a = i * 2, b = i * 2 + 1, c = (i + 1) * 2, d = (i + 1) * 2 + 1;
idx.push(a, b, c, b, d, c);
}
}
const last = SEGS * 2;
idx.push(last, last + 1, 0, last + 1, 1, 0);
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.Float32BufferAttribute(verts, 3));
geo.setAttribute('uv', new THREE.Float32BufferAttribute(uvs, 2));
geo.setAttribute('color', new THREE.Float32BufferAttribute(colors, 3));
geo.setIndex(idx);
geo.computeVertexNormals();
nordRoadMesh = addDrive(new THREE.Mesh(geo, new THREE.MeshStandardMaterial({
vertexColors: true, roughness: 0.85, side: THREE.DoubleSide,
})));
}
function buildCurb(sideSign) {
const w = 0.5;
const verts = [], colors = [], idx = [];
for (let i = 0; i <= SEGS; i++) {
const t = i / SEGS;
const pos = spline.getPointAt(t % 1);
const right = getRightAt(t % 1);
const ov = getSectionOverrideAt(t);
const roadLift = Number(ov?.roadYOffset) || 0;
const roadBank = Number(ov?.bank) || 0;
const center = pos.clone().addScaledVector(right, sideSign * (ROAD_W + w * 0.5));
const inner = center.clone().addScaledVector(right, -w * 0.5);
const outer = center.clone().addScaledVector(right, w * 0.5);
inner.y += 0.08 + roadLift + (sideSign < 0 ? -roadBank : roadBank);
outer.y += 0.08 + roadLift + (sideSign < 0 ? -roadBank : roadBank);
verts.push(inner.x, inner.y, inner.z, outer.x, outer.y, outer.z);
const alt = Math.floor(i / 6) % 2;
const c = alt ? [1, 0.2, 0] : [1, 1, 1];
colors.push(c[0], c[1], c[2], c[0], c[1], c[2]);
if (i < SEGS) {
const a = i * 2, b = i * 2 + 1, c2 = (i + 1) * 2, d = (i + 1) * 2 + 1;
idx.push(a, b, c2, b, d, c2);
}
}
const last = SEGS * 2;
idx.push(last, last + 1, 0, last + 1, 1, 0);
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.Float32BufferAttribute(verts, 3));
geo.setAttribute('color', new THREE.Float32BufferAttribute(colors, 3));
geo.setIndex(idx);
geo.computeVertexNormals();
addGround(new THREE.Mesh(geo, new THREE.MeshStandardMaterial({
vertexColors: true, emissive: 0x441100, emissiveIntensity: 0.4,
roughness: 0.6, side: THREE.DoubleSide,
})));
}
buildCurb(-1);
buildCurb(1);
function buildShoulder(sideSign) {
const shoulderW = 4.5;
const verts = [], colors = [], idx = [];
for (let i = 0; i <= SEGS; i++) {
const t = i / SEGS;
const pos = spline.getPointAt(t % 1);
const right = getRightAt(t % 1);
const ov = getSectionOverrideAt(t);
const roadLift = Number(ov?.roadYOffset) || 0;
const roadBank = Number(ov?.bank) || 0;
const bankY = roadLift + (sideSign < 0 ? -roadBank : roadBank);
const inner = pos.clone().addScaledVector(right, sideSign * (ROAD_W + 0.55));
const outer = pos.clone().addScaledVector(right, sideSign * (ROAD_W + shoulderW));
inner.y += 0.025 + bankY;
outer.y += -0.18 + bankY;
verts.push(inner.x, inner.y, inner.z, outer.x, outer.y, outer.z);
colors.push(0.11, 0.11, 0.1, 0.06, 0.09, 0.04);
if (i < SEGS) {
const a = i * 2, b = i * 2 + 1, c = (i + 1) * 2, d = (i + 1) * 2 + 1;
idx.push(a, b, c, b, d, c);
}
}
const last = SEGS * 2;
idx.push(last, last + 1, 0, last + 1, 1, 0);
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.Float32BufferAttribute(verts, 3));
geo.setAttribute('color', new THREE.Float32BufferAttribute(colors, 3));
geo.setIndex(idx);
geo.computeVertexNormals();
addGround(new THREE.Mesh(geo, new THREE.MeshStandardMaterial({
vertexColors: true, roughness: 0.95, side: THREE.DoubleSide,
})));
}
buildShoulder(-1);
buildShoulder(1);
function buildTerrainCorridor(sideSign) {
const offsets = [ROAD_W + 4.5, 18, 34, 60, 95, 135];
const drops = [0.22, 0.65, 1.2, 2.0, 3.0, 4.2];
const verts = [], colors = [], idx = [];
for (let i = 0; i <= SEGS; i++) {
const t = i / SEGS;
const pos = spline.getPointAt(t % 1);
const right = getRightAt(t % 1);
for (let k = 0; k < offsets.length; k++) {
const off = sideSign * offsets[k];
const p = pos.clone().addScaledVector(right, off);
const wave = Math.sin(t * Math.PI * 80 + k * 1.7) * 0.06 + Math.cos(t * Math.PI * 31 + sideSign * 0.8) * 0.04;
p.y = getTrackFrameY(t, off) - drops[k] + wave * Math.min(1, k / 2);
verts.push(p.x, p.y, p.z);
const shade = Math.max(0, Math.min(1, k / (offsets.length - 1)));
colors.push(0.03 + shade * 0.02, 0.10 + shade * 0.05, 0.035 + shade * 0.015);
}
if (i < SEGS) {
const row = i * offsets.length;
const next = (i + 1) * offsets.length;
for (let k = 0; k < offsets.length - 1; k++) {
const a = row + k, b = row + k + 1, c = next + k, d = next + k + 1;
idx.push(a, b, c, b, d, c);
}
}
}
const last = SEGS * offsets.length;
for (let k = 0; k < offsets.length - 1; k++) {
idx.push(last + k, last + k + 1, k, last + k + 1, k + 1, k);
}
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.Float32BufferAttribute(verts, 3));
geo.setAttribute('color', new THREE.Float32BufferAttribute(colors, 3));
geo.setIndex(idx);
geo.computeVertexNormals();
addGround(new THREE.Mesh(geo, new THREE.MeshStandardMaterial({
vertexColors: true, roughness: 1, side: THREE.DoubleSide,
})));
}
buildTerrainCorridor(-1);
buildTerrainCorridor(1);
// --- Center line (dashed white) ---
{
const lineW = 0.15;
const dashLenM = 7.5;
const dashGapM = 7.5;
const verts = [], idx = [];
const dashStep = (dashLenM + dashGapM) / Math.max(1, trackMeta.lengthM || 20700);
const dashT = dashLenM / Math.max(1, trackMeta.lengthM || 20700);
for (let t0 = 0; t0 < 1; t0 += dashStep) {
const t1 = Math.min(1, t0 + dashT);
const base = verts.length / 3;
for (const t of [t0, t1]) {
const pos = spline.getPointAt(t % 1);
const right = getRightAt(t % 1);
const L = pos.clone().addScaledVector(right, -lineW);
const R = pos.clone().addScaledVector(right, lineW);
L.y = getTrackFrameY(t, -lineW) + 0.025;
R.y = getTrackFrameY(t, lineW) + 0.025;
verts.push(L.x, L.y, L.z, R.x, R.y, R.z);
}
idx.push(base, base + 1, base + 2, base + 1, base + 3, base + 2);
}
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.Float32BufferAttribute(verts, 3));
geo.setIndex(idx);
geo.computeVertexNormals();
addGround(new THREE.Mesh(geo, new THREE.MeshStandardMaterial({
color: 0xdddddd, emissive: 0x333333, emissiveIntensity: 0.3,
roughness: 0.5, side: THREE.DoubleSide,
})));
}
if (debugGuideMode) {
const makeLine = (offset, color) => {
const pts = [];
for (let i = 0; i < Math.min(SEGS, 1200); i++) {
const t = i / Math.min(SEGS, 1200);
const p = spline.getPointAt(t);
const r = getRightAt(t);
pts.push(p.x + r.x * offset, getTrackFrameY(t, offset) + 0.06, p.z + r.z * offset);
}
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.Float32BufferAttribute(pts, 3));
add(new THREE.LineLoop(geo, new THREE.LineBasicMaterial({
color, transparent: true, opacity: 0.45, depthWrite: false,
})));
};
makeLine(0, 0x00f5d4);
makeLine(-ROAD_W, 0xffbe0b);
makeLine(ROAD_W, 0xffbe0b);
makeLine(-(ROAD_W + 4.5), 0x66ff88);
makeLine(ROAD_W + 4.5, 0x66ff88);
makeLine(-135, 0x337744);
makeLine(135, 0x337744);
}
// --- Terrain: macro envelope + procedural detail (see terrain.json) ---
{
const proc = (nordTerrainCfg && nordTerrainCfg.procedural) || {};
const terrainSize = proc.terrainSize ?? 8000;
const terrainSegs = proc.terrainSegs ?? 120;
const shoulderBlendM = proc.shoulderBlendM ?? 100;
const farNoiseAmp = proc.farNoiseAmp ?? 14;
const farNoiseFreq = proc.farNoiseFreq ?? 0.0022;
const macroRadialBoost = proc.macroRadialBoost ?? 1.12;
const geo = new THREE.PlaneGeometry(terrainSize, terrainSize, terrainSegs, terrainSegs);
geo.rotateX(-Math.PI / 2);
const posAttr = geo.getAttribute('position');
const TRACK_SAMPLE_STEP = 1;
const terrainTrackSamples = [];
let cx = 0, cz = 0;
const terrainSource = trackSamples.length ? trackSamples : splinePts;
for (let i = 0; i < terrainSource.length; i += TRACK_SAMPLE_STEP) {
const p = terrainSource[i];
terrainTrackSamples.push({ x: p.x, y: p.y, z: p.z, t: p.t, distanceM: p.distanceM });
cx += p.x; cz += p.z;
}
cx /= terrainTrackSamples.length; cz /= terrainTrackSamples.length;
const avgY = terrainTrackSamples.reduce((s, p) => s + p.y, 0) / terrainTrackSamples.length;
function noise2d(x, z) {
return Math.sin(x * farNoiseFreq) * Math.cos(z * farNoiseFreq * 1.36) * farNoiseAmp
+ Math.sin(x * farNoiseFreq * 3.2 + 1.3) * Math.cos(z * farNoiseFreq * 2.3 + 0.7) * (farNoiseAmp * 0.35);
}
const colors = [];
for (let i = 0; i < posAttr.count; i++) {
const x = posAttr.getX(i), z = posAttr.getZ(i);
const nearestTerrain = findNearestOnSamples(x, z, terrainTrackSamples);
const nearDist = nearestTerrain.dist;
const nearT = nearestTerrain.t;
const radial = Math.min(1, Math.hypot(x - cx, z - cz) / (terrainSize * 0.45));
const macroLift = (radial * radial) * 6 * macroRadialBoost;
const roadY = getTrackFrameY(nearT, nearestTerrain.signedOffset || 0);
const farY = avgY + noise2d(x, z) + macroLift;
const corridorClearM = 140;
let y;
if (nearDist < corridorClearM) {
y = roadY - 5.5;
} else if (nearDist < corridorClearM + shoulderBlendM) {
const blend = (nearDist - corridorClearM) / Math.max(1e-3, shoulderBlendM);
const eased = blend * blend * (3 - 2 * blend);
y = (roadY - 5.5) * (1 - eased) + farY * eased;
} else {
y = farY;
}
posAttr.setY(i, y);
const g = 0.04 + Math.sin(x * 0.01 + z * 0.01) * 0.015;
colors.push(0.02, Math.max(0.03, g), 0.01);
}
geo.setAttribute('color', new THREE.Float32BufferAttribute(colors, 3));
geo.computeVertexNormals();
nordTerrainMesh = addGround(new THREE.Mesh(geo, new THREE.MeshStandardMaterial({
vertexColors: true, roughness: 1, flatShading: true,
})));
}
// --- Trees (instanced cone+cylinder) ---
{
const trunkGeo = new THREE.CylinderGeometry(0.15, 0.2, 2.5, 5);
const foliageGeo = new THREE.ConeGeometry(1.5, 4, 6);
foliageGeo.translate(0, 4, 0);
trunkGeo.translate(0, 1.25, 0);
const treeMat = new THREE.MeshStandardMaterial({ color: 0x1a3a1a, roughness: 0.9, flatShading: true });
const treeCount = 2500;
const treeMesh = new THREE.InstancedMesh(foliageGeo, treeMat, treeCount);
const trunkMat = new THREE.MeshStandardMaterial({ color: 0x3a2a1a, roughness: 1 });
const trunkMesh = new THREE.InstancedMesh(trunkGeo, trunkMat, treeCount);
const dm = new THREE.Object3D();
const treeCol = new THREE.Color();
let placed = 0;
for (let i = 0; i < treeCount * 3 && placed < treeCount; i++) {
const t = Math.random();
const pos = spline.getPointAt(t);
const right = getRightAt(t);
const side = Math.random() < 0.5 ? -1 : 1;
const dist = ROAD_W + 4 + Math.random() * 35;
const sec = getSectionAt(t);
const isForest = sec && (sec.name.includes('Forst') || sec.name.includes('Fuchsrohre') || sec.name.includes('Kesselchen') || sec.name.includes('Klostertal') || sec.name.includes('Breidscheid') || sec.name.includes('Tiergarten'));
if (!isForest && dist > 15 && Math.random() > 0.3) continue;
if (sec && sec.name.includes('Dottinger') && Math.random() > 0.15) continue;
dm.position.copy(pos).addScaledVector(right, side * dist);
dm.position.y = pos.y - 1 + Math.random() * 0.5;
const scale = 0.6 + Math.random() * 0.8;
dm.scale.set(scale, scale * (0.8 + Math.random() * 0.4), scale);
dm.rotation.y = Math.random() * Math.PI * 2;
dm.updateMatrix();
treeMesh.setMatrixAt(placed, dm.matrix);
trunkMesh.setMatrixAt(placed, dm.matrix);
const g = 0.1 + Math.random() * 0.15;
treeCol.setRGB(0.02 + Math.random() * 0.03, g, 0.02 + Math.random() * 0.02);
treeMesh.setColorAt(placed, treeCol);
treeCol.setRGB(0.15, 0.1, 0.05);
trunkMesh.setColorAt(placed, treeCol);
placed++;
}
treeMesh.count = placed;
trunkMesh.count = placed;
treeMesh.instanceMatrix.needsUpdate = true;
treeMesh.instanceColor.needsUpdate = true;
trunkMesh.instanceMatrix.needsUpdate = true;
trunkMesh.instanceColor.needsUpdate = true;
add(treeMesh);
add(trunkMesh);
}
// --- Trackside markers (instanced) ---
{
const geo = new THREE.BoxGeometry(0.2, 1.8, 0.2);
const mat = new THREE.MeshStandardMaterial({ color: 0xffffff, emissive: 0xffffff, emissiveIntensity: 0.6 });
const count = 600;
const mesh = new THREE.InstancedMesh(geo, mat, count);
const dummy = new THREE.Object3D();
const col = new THREE.Color();
for (let i = 0; i < count; i++) {
const t = (i / count + Math.random() * 0.0003) % 1;
const pos = spline.getPointAt(t);
const right = getRightAt(t);
const side = Math.random() < 0.5 ? -1 : 1;
const offset = ROAD_W + 1.5 + Math.random() * 1.5;
dummy.position.copy(pos).addScaledVector(right, side * offset);
dummy.position.y += 0.9;
dummy.updateMatrix();
mesh.setMatrixAt(i, dummy.matrix);
col.set(PAL[Math.floor(Math.random() * PAL.length)]);
mesh.setColorAt(i, col);
}
mesh.instanceMatrix.needsUpdate = true;
mesh.instanceColor.needsUpdate = true;
add(mesh);
}
// --- Barriers on tight corners ---
{
const barrierGeo = new THREE.BoxGeometry(0.4, 0.7, 3);
const barrierMat = new THREE.MeshStandardMaterial({ color: 0x888888, roughness: 0.8 });
const barrierCount = 400;
const barriers = new THREE.InstancedMesh(barrierGeo, barrierMat, barrierCount);
const dm = new THREE.Object3D();
const bc = new THREE.Color();
let bPlaced = 0;
for (let i = 0; i < 3000 && bPlaced < barrierCount; i++) {
const t = i / 3000;
const t1 = (t + 0.001) % 1, t0 = ((t - 0.001) + 1) % 1;
const tan0 = spline.getTangentAt(t0), tan1 = spline.getTangentAt(t1);
const curvature = Math.abs(new THREE.Vector3().crossVectors(tan0, tan1).y);
if (curvature < 0.0001) continue;
const pos = spline.getPointAt(t);
const right = getRightAt(t);
const tangent = spline.getTangentAt(t);
const side = new THREE.Vector3().crossVectors(tan0, tan1).y > 0 ? 1 : -1;
dm.position.copy(pos).addScaledVector(right, side * (ROAD_W + 1.2));
dm.position.y += 0.35;
dm.quaternion.setFromUnitVectors(new THREE.Vector3(0, 0, 1), tangent.normalize());
dm.updateMatrix();
barriers.setMatrixAt(bPlaced, dm.matrix);
bc.setRGB(0.5 + (bPlaced % 2) * 0.3, 0.5 + (bPlaced % 2) * 0.3, 0.5 + (bPlaced % 2) * 0.3);
barriers.setColorAt(bPlaced, bc);
bPlaced++;
}
barriers.count = bPlaced;
barriers.instanceMatrix.needsUpdate = true;
barriers.instanceColor.needsUpdate = true;
add(barriers);
}
// --- Landmarks from generated landmarks.json ---
for (const lm of nordLandmarks) {
const tt = ((Number(lm.t) % 1) + 1) % 1;
const pos = spline.getPointAt(tt);
const right = getRightAt(tt);
const tan = spline.getTangentAt(tt).normalize();
const off = Number(lm.offset) || 0;
const sc = Number(lm.scale) || 1;
const base = pos.clone().addScaledVector(right, off);
const kind = lm.kind || 'sign';
if (kind === 'gantry') {
const mat = new THREE.MeshStandardMaterial({ color: 0x333344, metalness: 0.4, roughness: 0.5 });
const leg = new THREE.Mesh(new THREE.BoxGeometry(0.35, 5, 0.35), mat);
leg.position.copy(base).addScaledVector(right, -4);
leg.position.y += 2.5;
add(leg);
const leg2 = leg.clone();
leg2.position.copy(base).addScaledVector(right, 4);
leg2.position.y += 2.5;
add(leg2);
const beam = new THREE.Mesh(new THREE.BoxGeometry(9, 0.25, 0.5), mat);
beam.position.copy(base);
beam.position.y += 5;
beam.quaternion.setFromUnitVectors(new THREE.Vector3(1, 0, 0), right);
add(beam);
} else if (kind === 'sign') {
const m = new THREE.Mesh(new THREE.BoxGeometry(2.2 * sc, 1.1 * sc, 0.08), new THREE.MeshStandardMaterial({
color: 0xeeeeff, emissive: 0x222244, emissiveIntensity: 0.5,
}));
m.position.copy(base).addScaledVector(right, ROAD_W + 3);
m.position.y += 2;
m.quaternion.setFromUnitVectors(new THREE.Vector3(0, 1, 0), tan.clone().multiplyScalar(-1).add(new THREE.Vector3(0, 0.4, 0)).normalize());
add(m);
} else if (kind === 'banked') {
const m = new THREE.Mesh(new THREE.BoxGeometry(10 * sc, 0.4, 4 * sc), new THREE.MeshStandardMaterial({ color: 0x555560, roughness: 0.85 }));
m.position.copy(base);
m.position.y -= 0.2;
m.rotation.z = 0.35;
m.rotation.y = Math.atan2(tan.x, tan.z);
add(m);
} else if (kind === 'spectator') {
const g = new THREE.InstancedMesh(new THREE.BoxGeometry(0.35, 1.2, 0.25), new THREE.MeshStandardMaterial({ color: 0x223344, roughness: 0.9 }), 24);
const d = new THREE.Object3D();
let n = 0;
for (let k = 0; k < 24; k++) {
d.position.copy(base).addScaledVector(right, (k % 6 - 2.5) * 1.2).addScaledVector(tan, (Math.floor(k / 6) - 1) * 1.5);
d.position.y += 0.6;
d.rotation.y = Math.random() * 0.5;
d.updateMatrix();
g.setMatrixAt(n++, d.matrix);
}
g.count = n;
g.instanceMatrix.needsUpdate = true;
add(g);
} else if (kind === 'jump') {
const m = new THREE.Mesh(new THREE.BoxGeometry(6 * sc, 0.35, 3 * sc), new THREE.MeshStandardMaterial({ color: 0x444455, roughness: 0.7 }));
m.position.copy(base);
m.position.y += 0.15;
m.rotation.x = -0.45;
m.rotation.y = Math.atan2(tan.x, tan.z);
add(m);
}
}
// --- Data-driven props (props.json) ---
if (Array.isArray(nordProps) && nordProps.length > 0) {
const byKind = new Map();
for (const p of nordProps) {
const kind = String(p.kind || 'post');
if (!byKind.has(kind)) byKind.set(kind, []);
byKind.get(kind).push(p);
}
for (const [kind, items] of byKind) {
let geo;
let mat;
if (kind === 'lamp') {
geo = new THREE.CylinderGeometry(0.08, 0.1, 5.2, 6);
mat = new THREE.MeshStandardMaterial({ color: 0x666c74, roughness: 0.8 });
} else if (kind === 'barrier') {
geo = new THREE.BoxGeometry(1.4, 0.6, 0.24);
mat = new THREE.MeshStandardMaterial({ color: 0x8b8f95, roughness: 0.85 });
} else if (kind === 'spectator') {
geo = new THREE.BoxGeometry(0.32, 1.25, 0.26);
mat = new THREE.MeshStandardMaterial({ color: 0x293142, roughness: 0.9 });
} else {
geo = new THREE.BoxGeometry(0.16, 1.8, 0.16);
mat = new THREE.MeshStandardMaterial({ color: 0xdedede, roughness: 0.7 });
}
const mesh = new THREE.InstancedMesh(geo, mat, items.length);
const d = new THREE.Object3D();
const col = new THREE.Color();
let n = 0;
for (const it of items) {
const tt = ((Number(it.t) % 1) + 1) % 1;
const pos = spline.getPointAt(tt);
const right = getRightAt(tt);
const tan = spline.getTangentAt(tt).normalize();
const off = Number(it.offset) || 0;
d.position.copy(pos).addScaledVector(right, off);
d.position.y += Number(it.yOffset) || 0;
d.scale.setScalar(Number(it.scale) || 1);
d.rotation.y = Math.atan2(tan.x, tan.z);
d.updateMatrix();
mesh.setMatrixAt(n, d.matrix);
if (it.color) {
try { col.set(it.color); mesh.setColorAt(n, col); } catch (_) {}
}
n++;
}
mesh.count = n;
mesh.instanceMatrix.needsUpdate = true;
if (mesh.instanceColor) mesh.instanceColor.needsUpdate = true;
add(mesh);
}
}
// --- Selective side areas: pull-offs/service pads at key sectors ---
const sideAreas = [
{ t: 0.01, side: -1, len: 36, depth: 20, yaw: 0 },
{ t: 0.22, side: 1, len: 26, depth: 16, yaw: 0.08 },
{ t: 0.84, side: -1, len: 32, depth: 18, yaw: -0.06 },
];
for (const area of sideAreas) {
const tt = ((area.t % 1) + 1) % 1;
const pos = spline.getPointAt(tt);
const right = getRightAt(tt);
const tan = spline.getTangentAt(tt).normalize();
const ctr = pos.clone().addScaledVector(right, area.side * (ROAD_W + area.depth * 0.5 + 6));
const padGeo = new THREE.BoxGeometry(area.len, 0.25, area.depth);
const pad = new THREE.Mesh(padGeo, new THREE.MeshStandardMaterial({ color: 0x3d3f44, roughness: 0.85 }));
pad.position.copy(ctr);
pad.position.y = pos.y - 0.45;
pad.rotation.y = Math.atan2(tan.x, tan.z) + area.yaw;
addGround(pad);
const lane = new THREE.Mesh(new THREE.BoxGeometry(6, 0.2, area.depth * 0.5), new THREE.MeshStandardMaterial({ color: 0x484a50, roughness: 0.8 }));
lane.position.copy(pos).addScaledVector(right, area.side * (ROAD_W + 2.5));
lane.position.y = pos.y - 0.4;
lane.rotation.y = Math.atan2(tan.x, tan.z);
addGround(lane);
}
chaosPickupPos = [];
for (let i = 0; i < 28; i++) {
const tt = (i * 0.037 + 0.02) % 1;
const p = spline.getPointAt(tt);
const right = getRightAt(tt);
chaosPickupPos.push({
x: p.x + right.x * (ROAD_W + 7),
z: p.z + right.z * (ROAD_W + 7),
hit: false,
});
}
}
// =====================================================================
// CAR
// =====================================================================
// =====================================================================
// CAR — Load GLB model, fallback to simple box
// =====================================================================
const carGroup = new THREE.Group();
scene.add(carGroup);
let brakeLightMat = null;
// Blob shadow: soft radial gradient, sits on road independently of car Y
const _shadowCanvas = document.createElement('canvas');
_shadowCanvas.width = 64; _shadowCanvas.height = 64;
{const sc = _shadowCanvas.getContext('2d');
const g = sc.createRadialGradient(32,32,0,32,32,32);
g.addColorStop(0,'rgba(0,0,0,0.3)');g.addColorStop(0.5,'rgba(0,0,0,0.1)');g.addColorStop(1,'rgba(0,0,0,0)');
sc.fillStyle=g;sc.fillRect(0,0,64,64);}
const shadowTex = new THREE.CanvasTexture(_shadowCanvas);
const shadowPlane = new THREE.Mesh(
new THREE.PlaneGeometry(4.5, 6),
new THREE.MeshBasicMaterial({ map: shadowTex, transparent: true, depthWrite: false, polygonOffset: true, polygonOffsetFactor: -1 })
);
shadowPlane.geometry.rotateX(-Math.PI / 2);
shadowPlane.renderOrder = -1;
scene.add(shadowPlane);
// Dust particle system (simple pooled points)
const DUST_MAX = 200;
const dustPositions = new Float32Array(DUST_MAX * 3);
const dustAlphas = new Float32Array(DUST_MAX);
const dustVelocities = [];
for (let i = 0; i < DUST_MAX; i++) dustVelocities.push({ x: 0, y: 0, z: 0, life: 0 });
const dustGeo = new THREE.BufferGeometry();
dustGeo.setAttribute('position', new THREE.Float32BufferAttribute(dustPositions, 3));
const dustMat = new THREE.PointsMaterial({ color: 0x886644, size: 1.5, transparent: true, opacity: 0.4, depthWrite: false, sizeAttenuation: true });
const dustPoints = new THREE.Points(dustGeo, dustMat);
scene.add(dustPoints);
let dustIdx = 0;
function spawnDust(x, y, z, speed) {
const i = dustIdx % DUST_MAX;
dustPositions[i*3] = x + (Math.random()-0.5) * 2;
dustPositions[i*3+1] = y + Math.random() * 0.3;
dustPositions[i*3+2] = z + (Math.random()-0.5) * 2;
dustVelocities[i] = { x: (Math.random()-0.5)*speed*0.1, y: 0.5+Math.random()*1.5, z: (Math.random()-0.5)*speed*0.1, life: 1.0 };
dustIdx++;
}
function updateDust(dt) {
for (let i = 0; i < DUST_MAX; i++) {
const v = dustVelocities[i];
if (v.life <= 0) continue;
v.life -= dt * 1.5;
dustPositions[i*3] += v.x * dt;
dustPositions[i*3+1] += v.y * dt;
dustPositions[i*3+2] += v.z * dt;
v.y -= 0.5 * dt; // gravity
if (v.life <= 0) { dustPositions[i*3+1] = -1000; } // hide
}
dustGeo.getAttribute('position').needsUpdate = true;
}
// Wind noise removed — was annoying
// Fallback car (simple white box while model loads)
const fallbackCar = new THREE.Group();
{
const mat = new THREE.MeshStandardMaterial({ color: 0xf0f0f0, roughness: 0.3, metalness: 0.4 });
const body = new THREE.Mesh(new THREE.BoxGeometry(2, 0.5, 4.5), mat);
body.position.y = 0.4;
fallbackCar.add(body);
const cabin = new THREE.Mesh(new THREE.BoxGeometry(1.6, 0.4, 2), new THREE.MeshStandardMaterial({ color: 0x334455, roughness: 0.2 }));
cabin.position.set(0, 0.85, -0.3);
fallbackCar.add(cabin);
// Tail light
const tl = new THREE.Mesh(new THREE.BoxGeometry(1.6, 0.08, 0.04), new THREE.MeshStandardMaterial({ color: 0xff0000, emissive: 0xff0000, emissiveIntensity: 1.5 }));
tl.position.set(0, 0.45, -2.25);
fallbackCar.add(tl);
}
carGroup.add(fallbackCar);
// Headlight
const carSpot = new THREE.SpotLight(0xffffdd, 10, 150, Math.PI / 8, 0.5);
carSpot.position.set(0, 0.6, 2.5);
carSpot.target.position.set(0, -2, 40);
carGroup.add(carSpot);
carGroup.add(carSpot.target);
/** Build a remote player's car. Shows a procedural box immediately, swaps in
* the GLB model (same random index that player sent on join) once loaded. */
function createRemoteCar(name, colorStr, modelIdx) {
const g = new THREE.Group();
// Procedural stand-in (shown until/if GLB loads)
let bodyColor = 0x888888;
try { bodyColor = new THREE.Color(colorStr).getHex(); } catch (_) {}
const bodyMat = new THREE.MeshStandardMaterial({ color: bodyColor, roughness: 0.3, metalness: 0.4 });
const body = new THREE.Mesh(new THREE.BoxGeometry(2, 0.5, 4.5), bodyMat);
body.position.y = 0.4;
g.add(body);
const cabin = new THREE.Mesh(new THREE.BoxGeometry(1.6, 0.4, 2), new THREE.MeshStandardMaterial({ color: 0x334455, roughness: 0.2 }));
cabin.position.set(0, 0.85, -0.3);
g.add(cabin);
const tl = new THREE.Mesh(new THREE.BoxGeometry(1.6, 0.08, 0.04), new THREE.MeshStandardMaterial({ color: 0xff0000, emissive: 0xff0000, emissiveIntensity: 1.5 }));
tl.position.set(0, 0.45, -2.25);
g.add(tl);
const hl = new THREE.Mesh(new THREE.BoxGeometry(0.35, 0.12, 0.08), new THREE.MeshStandardMaterial({ color: 0xffffdd, emissive: 0xffffdd, emissiveIntensity: 2.2 }));
hl.position.set(0, 0.45, 2.2);
g.add(hl);
const proceduralParts = [body, cabin, tl, hl];
// Name label (always kept above car)
const cnv = document.createElement('canvas');
cnv.width = 256; cnv.height = 64;
const cx = cnv.getContext('2d');
cx.fillStyle = 'rgba(0,0,0,0.55)';
cx.fillRect(12, 10, 232, 44);
cx.fillStyle = '#fff';
cx.font = '600 26px system-ui,-apple-system,sans-serif';
cx.textAlign = 'center'; cx.textBaseline = 'middle';
cx.fillText(String(name).slice(0, 16), 128, 32);
const tex = new THREE.CanvasTexture(cnv);
tex.needsUpdate = true;
const spr = new THREE.Sprite(new THREE.SpriteMaterial({ map: tex, transparent: true, depthTest: true }));
spr.scale.set(4.2, 1.05, 1);
spr.position.set(0, 2.5, 0);
g.add(spr);
// Async load GLB model, remove procedural stand-in when ready
if (modelIdx !== undefined && modelIdx !== null && CAR_MODEL_DEFS[modelIdx]) {
loadCarModelInto(g, modelIdx, (loaded) => {
if (loaded) {
proceduralParts.forEach(m => {
g.remove(m);
if (m.geometry) m.geometry.dispose();
if (m.material) m.material.dispose();
});
}
});
}
scene.add(g);
return g;
}
// =====================================================================
// CAR MODELS — 6 GLB models randomly assigned per session
// yRot: rotation to make car face +Z (game forward). Adjust if a model
// loads facing the wrong direction.
// =====================================================================
const CAR_MODEL_DEFS = [
{ url: '/assets/cars/race.glb', targetLen: 4.2, yRot: 0 },
{ url: '/assets/cars/race-future.glb', targetLen: 4.2, yRot: 0 },
{ url: '/assets/cars/sedan-sports.glb', targetLen: 4.5, yRot: 0 },
{ url: '/assets/cars/hatchback-sports.glb', targetLen: 4.2, yRot: 0 },
{ url: '/assets/cars/nissan-gtr.glb', targetLen: 4.5, yRot: 0 },
{ url: '/assets/cars/lambo.glb', targetLen: 4.5, yRot: 0 },
{ url: '/assets/cars/ferrari-f40.glb', targetLen: 4.2, yRot: 0 },
{ url: '/assets/cars/rx7.glb', targetLen: 4.3, yRot: 0 },
{ url: '/assets/cars/sportster.glb', targetLen: 4.3, yRot: 0 },
{ url: '/assets/cars/charger.glb', targetLen: 4.8, yRot: 0 },
];
const myCarModelIdx = Math.floor(Math.random() * CAR_MODEL_DEFS.length);
const _glbLoader = new GLTFLoader();
const _modelCache = new Map(); // url -> normalized scene (source, never added to scene graph)
function _normalizeGltfScene(gltfScene, def) {
gltfScene.rotation.y = def.yRot;
gltfScene.updateMatrixWorld(true);
const box = new THREE.Box3().setFromObject(gltfScene);
const size = box.getSize(new THREE.Vector3());
const longestH = Math.max(size.x, size.z);
if (longestH > 0) gltfScene.scale.setScalar(def.targetLen / longestH);
gltfScene.updateMatrixWorld(true);
const box2 = new THREE.Box3().setFromObject(gltfScene);
const center = box2.getCenter(new THREE.Vector3());
gltfScene.position.x -= center.x;
gltfScene.position.z -= center.z;
gltfScene.position.y -= box2.min.y;
}
function loadCarModelInto(targetGroup, idx, onDone) {
const def = CAR_MODEL_DEFS[idx] || CAR_MODEL_DEFS[0];
const cached = _modelCache.get(def.url);
if (cached) {
const clone = cached.clone();
targetGroup.add(clone);
if (onDone) onDone(clone);
return;
}
_glbLoader.load(def.url, (gltf) => {
_normalizeGltfScene(gltf.scene, def);
_modelCache.set(def.url, gltf.scene);
const clone = gltf.scene.clone();
targetGroup.add(clone);
if (onDone) onDone(clone);
}, undefined, (err) => {
console.warn('[car] Failed to load', def.url, err);
if (onDone) onDone(null);
});
}
// Load player's own model; swap out procedural fallback when ready
loadCarModelInto(carGroup, myCarModelIdx, (loaded) => {
if (loaded) {
carGroup.remove(fallbackCar);
fallbackCar.traverse(c => {
if (c.geometry) c.geometry.dispose();
if (c.material) c.material.dispose();
});
}
});
// =====================================================================
// =====================================================================
// CLUJ-NAPOCA MAP DATA (secret map — type "cluj" on intro)
// =====================================================================
const CLUJ_ROADS = [
{n:'Piața Ștefan cel Mare',t:'p',c:[[624.6,-321.4],[628.3,-337.8],[628.7,-340.0]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[524.3,-61.0],[526.8,-66.9],[529.1,-73.0],[545.5,-114.7]]},
{n:'Strada Posada',t:'p',c:[[716.1,-278.0],[706.6,-282.4],[697.6,-286.7],[683.7,-293.3],[639.2,-314.5],[634.6,-316.6],[624.6,-321.4]]},
{n:'Piața Avram Iancu',t:'p',c:[[524.3,-61.0],[541.2,-54.4],[546.0,-52.2],[550.6,-50.5],[556.7,-48.3],[562.1,-46.0],[567.9,-43.7],[578.8,-39.3],[582.9,-37.8],[586.0,-36.5],[597.6,-31.9]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[716.1,-278.0],[711.6,-267.1],[710.9,-265.6],[709.2,-262.0]]},
{n:'',t:'p',c:[[635.1,-392.7],[641.3,-396.6],[645.6,-399.9],[654.3,-406.9]]},
{n:'Strada Napoca',t:'p',c:[[-224.3,-415.2],[-193.0,-397.9],[-102.2,-345.3],[-92.2,-339.0],[-22.8,-293.1],[-3.8,-280.6],[-2.1,-279.5],[6.2,-273.9]]},
{n:'Calea Dorobanților',t:'p',c:[[597.6,-31.9],[609.6,-27.7],[629.8,-21.0],[670.8,-8.4],[721.9,7.3],[739.7,12.9]]},
{n:'Calea Turzii',t:'p',c:[[655.6,-476.2],[655.5,-473.8],[656.4,-465.8],[658.2,-460.6],[661.0,-456.0],[666.0,-451.1],[673.0,-445.8],[681.0,-441.7],[684.2,-440.3],[697.2,-436.7]]},
{n:'Strada Memorandumului',t:'p',c:[[-93.2,-105.4],[-101.4,-109.9],[-106.3,-113.0],[-177.9,-157.2],[-179.7,-158.3],[-213.3,-178.3],[-227.7,-186.9],[-254.5,-202.7]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[436.8,149.0],[424.7,143.2],[417.6,140.3],[409.2,136.9],[400.9,133.6],[358.7,117.2],[266.6,81.9],[263.7,80.8],[256.7,78.1]]},
{n:'Bulevardul Eroilor',t:'p',c:[[81.5,-236.8],[98.2,-229.8],[107.5,-225.8],[205.6,-183.1],[222.9,-175.8],[253.8,-163.0],[470.0,-82.0],[476.6,-79.7]]},
{n:'Strada Regele Ferdinand',t:'p',c:[[-119.8,273.3],[-126.9,287.5]]},
{n:'Strada Horea',t:'p',c:[[-182.4,392.3],[-178.6,383.8]]},
{n:'Strada Horea',t:'p',c:[[-149.1,324.1],[-161.9,349.2],[-170.1,365.3]]},
{n:'Piața Unirii',t:'p',c:[[6.2,-273.9],[13.1,-269.2],[19.0,-265.6],[25.5,-262.0],[34.4,-257.6],[81.5,-236.8]]},
{n:'Strada Milton Lehrer',t:'p',c:[[697.2,-436.7],[711.3,-433.0],[727.3,-428.0],[739.9,-423.7],[743.0,-422.6]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[1171.8,531.1],[1169.6,530.0],[1168.5,529.4],[1167.3,528.9],[1164.9,527.7],[1158.7,524.4],[1143.3,517.3]]},
{n:'Strada Horea',t:'p',c:[[-184.5,992.8],[-186.6,958.4],[-189.4,916.5],[-190.3,897.4],[-190.6,863.9],[-191.2,781.4]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[520.9,190.3],[502.9,180.8]]},
{n:'Piața Unirii',t:'p',c:[[24.4,-21.7],[9.3,-35.8]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[746.9,314.5],[739.2,310.3],[662.5,269.1],[585.5,226.2]]},
{n:'Calea Turzii',t:'p',c:[[635.1,-392.7],[636.5,-414.5],[637.2,-420.9],[638.8,-434.7],[640.2,-446.4],[642.6,-458.6],[645.2,-470.6],[647.0,-476.2],[649.8,-481.8],[659.2,-497.3]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[1115.1,504.0],[1077.9,486.7],[1068.0,482.0],[1050.9,474.1],[991.8,445.9],[939.1,417.7],[924.2,409.5],[857.3,374.4],[841.4,365.9],[825.6,357.5],[779.9,333.2],[754.2,318.8],[751.1,317.8],[746.9,314.5]]},
{n:'Piața Avram Iancu',t:'p',c:[[436.8,149.0],[437.8,147.1],[439.2,143.7],[443.1,134.8],[484.3,40.1],[516.8,-42.2]]},
{n:'Strada Milton Lehrer',t:'p',c:[[743.0,-422.6],[749.9,-417.7],[755.5,-411.1],[758.5,-404.3],[761.4,-398.8]]},
{n:'Calea Moților',t:'p',c:[[-1139.2,-731.4],[-1133.7,-727.8],[-1127.3,-723.8],[-1119.0,-719.0]]},
{n:'Strada Regele Ferdinand',t:'p',c:[[24.4,-21.7],[20.6,-12.0],[18.7,-7.0],[14.3,5.2],[11.8,11.6],[-16.5,87.0]]},
{n:'Calea Moților',t:'p',c:[[-630.4,-469.1],[-616.1,-458.8],[-587.8,-438.4]]},
{n:'Piața Unirii',t:'p',c:[[81.5,-236.8],[86.0,-231.2],[87.8,-225.2],[87.3,-217.1],[84.5,-208.9],[82.6,-204.0],[51.0,-127.7],[34.6,-91.7]]},
{n:'Strada Petru Maior',t:'p',c:[[-357.2,-273.6],[-353.4,-282.6],[-350.4,-289.3],[-328.8,-337.5],[-298.6,-404.7],[-297.1,-408.1],[-294.4,-414.1],[-292.4,-419.5],[-291.8,-420.7]]},
{n:'Calea Moților',t:'p',c:[[-929.1,-631.5],[-893.2,-614.2],[-891.9,-613.6],[-858.0,-597.5],[-835.2,-586.4],[-805.6,-572.2],[-775.1,-556.7],[-763.5,-550.6],[-735.6,-535.8],[-719.2,-526.1],[-690.4,-508.4],[-668.2,-494.1],[-658.2,-488.0],[-650.5,-483.5]]},
{n:'Piața Avram Iancu',t:'p',c:[[597.6,-31.9],[594.1,-25.1],[592.5,-22.3],[574.7,19.5]]},
{n:'Calea Turzii',t:'p',c:[[640.7,-854.2],[642.8,-845.3],[659.9,-761.6]]},
{n:'Calea Turzii',t:'p',c:[[638.4,-865.7],[640.7,-854.2]]},
{n:'Piața Unirii',t:'p',c:[[34.6,-91.7],[18.5,-55.5],[16.3,-50.8],[11.8,-41.3],[11.3,-40.1],[9.3,-35.8]]},
{n:'Calea Turzii',t:'p',c:[[632.3,-353.0],[633.3,-358.9],[634.1,-365.4],[634.8,-378.6],[634.7,-383.8],[635.1,-392.7]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[632.3,-353.0],[637.4,-364.4],[644.0,-380.9],[646.6,-386.9],[647.6,-389.5],[654.3,-406.9]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[654.3,-406.9],[671.3,-421.8],[678.3,-426.9],[680.9,-428.8],[688.7,-432.9],[697.2,-436.7]]},
{n:'Piața Timotei Cipariu',t:'p',c:[[761.8,-379.8],[730.4,-311.3],[726.5,-301.7]]},
{n:'Strada Regele Ferdinand',t:'p',c:[[-97.2,232.0],[-101.2,239.1],[-111.9,257.2],[-114.7,262.4],[-118.4,270.4],[-119.8,273.3]]},
{n:'Piața Avram Iancu',t:'p',c:[[506.0,173.1],[505.5,174.3],[502.9,180.8]]},
{n:'Calea Moților',t:'p',c:[[-427.3,-321.0],[-381.7,-286.8],[-376.4,-282.8],[-375.1,-281.9],[-369.5,-277.7]]},
{n:'Strada Horea',t:'p',c:[[-188.8,499.5],[-183.3,407.0],[-182.4,392.3]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[604.7,-269.2],[616.2,-299.3],[618.6,-305.8],[624.6,-321.4]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[502.9,180.8],[475.1,167.4],[451.4,156.0],[439.5,150.3],[436.8,149.0]]},
{n:'Calea Turzii',t:'p',c:[[704.2,-599.4],[704.0,-590.2],[702.4,-581.3],[697.6,-569.4],[692.3,-559.3],[681.2,-538.5],[674.8,-526.7],[663.5,-505.4],[659.2,-497.3]]},
{n:'Piața Avram Iancu',t:'p',c:[[574.7,19.5],[549.2,77.3],[522.7,134.9]]},
{n:'Piața Timotei Cipariu',t:'p',c:[[726.5,-301.7],[724.0,-295.3],[718.3,-282.7],[716.1,-278.0]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[545.5,-114.7],[556.8,-145.6]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[556.8,-145.6],[567.4,-174.0]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[1143.3,517.3],[1128.6,510.2],[1124.9,508.4],[1115.1,504.0]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[585.5,226.2],[554.5,209.5]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[146.5,33.6],[130.6,26.9],[124.7,24.5],[116.8,21.2]]},
{n:'Strada Horea',t:'p',c:[[-196.1,603.0],[-192.5,550.5],[-190.1,518.1]]},
{n:'Strada Memorandumului',t:'p',c:[[-324.6,-246.3],[-358.9,-269.8]]},
{n:'Strada Horea',t:'p',c:[[-196.6,627.1],[-194.2,632.6],[-191.6,639.5],[-189.2,680.7],[-189.0,683.9],[-187.6,697.8]]},
{n:'Piața Unirii',t:'p',c:[[9.3,-35.8],[-1.2,-44.2],[-5.5,-47.0]]},
{n:'Calea Turzii',t:'p',c:[[659.9,-761.6],[667.4,-732.7],[670.0,-724.5],[680.0,-689.1],[683.5,-676.7],[692.3,-647.1]]},
{n:'Calea Turzii',t:'p',c:[[692.3,-647.1],[695.9,-634.6],[699.4,-622.8],[702.1,-612.7],[703.5,-606.0],[704.2,-599.4]]},
{n:'Calea Turzii',t:'p',c:[[613.2,-1129.7],[610.7,-1118.1],[608.1,-1102.3],[607.0,-1086.5],[606.5,-1072.3]]},
{n:'Calea Turzii',t:'p',c:[[656.0,-1281.6],[638.5,-1220.3],[631.2,-1194.5],[629.6,-1188.9],[628.5,-1184.9],[624.8,-1171.8],[619.9,-1154.3],[613.2,-1129.7]]},
{n:'Calea Turzii',t:'p',c:[[609.3,-1022.5],[611.5,-1008.6],[614.5,-992.3]]},
{n:'Strada Horea',t:'p',c:[[-187.6,697.8],[-185.5,722.9],[-185.3,731.5],[-184.6,751.3],[-185.3,754.9],[-189.1,773.6],[-191.2,781.4]]},
{n:'Strada Horea',t:'p',c:[[-191.2,781.4],[-192.9,773.3],[-195.6,752.9],[-197.5,724.0],[-198.7,709.5],[-200.8,692.9]]},
{n:'Strada Horea',t:'p',c:[[-196.6,627.1],[-196.6,622.6],[-196.3,609.3],[-196.1,603.0]]},
{n:'Strada Horea',t:'p',c:[[-200.8,692.9],[-201.1,689.0],[-201.3,684.6],[-201.9,639.8],[-198.3,631.6],[-196.6,627.1]]},
{n:'Strada Horea',t:'p',c:[[-126.9,287.5],[-132.2,295.5],[-149.1,324.1]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[256.7,78.1],[220.9,63.8],[146.5,33.6]]},
{n:'Calea Turzii',t:'p',c:[[614.5,-992.3],[621.1,-957.8],[638.4,-865.7]]},
{n:'Strada Regele Ferdinand',t:'p',c:[[-75.3,196.0],[-76.5,197.9],[-77.3,199.2],[-78.6,201.4],[-97.2,232.0]]},
{n:'Strada Regele Ferdinand',t:'p',c:[[-16.5,87.0],[-21.7,100.5]]},
{n:'Strada Regele Ferdinand',t:'p',c:[[-21.7,100.5],[-22.2,101.7],[-24.8,107.4],[-27.7,113.8],[-43.6,145.2],[-56.3,166.5],[-74.9,195.3],[-75.3,196.0]]},
{n:'Calea Turzii',t:'p',c:[[606.5,-1072.3],[606.8,-1051.6],[607.0,-1044.7],[609.3,-1022.5]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[653.0,-143.3],[605.4,-47.9],[602.8,-42.7],[597.6,-31.9]]},
{n:'Piața Lucian Blaga',t:'p',c:[[-284.0,-440.9],[-282.7,-440.4],[-248.4,-426.0]]},
{n:'Strada Petru Maior',t:'p',c:[[-291.8,-420.7],[-285.6,-436.8],[-284.0,-440.9]]},
{n:'Calea Moților',t:'p',c:[[-1119.0,-719.0],[-1114.8,-716.6],[-1110.4,-714.7],[-1100.6,-710.6],[-1082.6,-703.3],[-1073.8,-699.6],[-1067.4,-696.7],[-1050.2,-689.2]]},
{n:'Bulevardul Eroilor',t:'p',c:[[476.6,-79.7],[509.1,-66.9],[514.7,-64.7],[517.4,-63.6],[524.3,-61.0]]},
{n:'Piața Avram Iancu',t:'p',c:[[516.8,-42.2],[521.5,-54.0],[522.7,-57.0],[524.3,-61.0]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[567.4,-174.0],[570.9,-183.0],[604.7,-269.2]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[116.8,21.2],[40.5,-12.0],[35.3,-15.2],[29.8,-18.5],[24.4,-21.7]]},
{n:'Strada Memorandumului',t:'p',c:[[-254.5,-202.7],[-284.9,-221.0]]},
{n:'Strada Memorandumului',t:'p',c:[[-284.9,-221.0],[-314.8,-240.1],[-320.6,-243.9],[-324.6,-246.3]]},
{n:'Calea Moților',t:'p',c:[[-650.5,-483.5],[-643.0,-478.2],[-630.4,-469.1]]},
{n:'Calea Moților',t:'p',c:[[-1050.2,-689.2],[-1010.9,-670.9]]},
{n:'Strada Horea',t:'p',c:[[-182.0,1029.4],[-182.7,1022.0]]},
{n:'Strada Horea',t:'p',c:[[-178.1,1099.0],[-181.7,1039.0],[-182.0,1029.4]]},
{n:'Bulevardul 21 Decembrie 1989',t:'p',c:[[554.5,209.5],[526.0,193.2],[525.1,192.7],[524.3,192.3],[520.9,190.3]]},
{n:'Piața Avram Iancu',t:'p',c:[[522.7,134.9],[511.4,160.4],[509.0,166.2],[506.0,173.1]]},
{n:'Calea Dorobanților',t:'p',c:[[1136.4,151.5],[1199.1,180.8],[1217.3,190.4],[1228.6,196.7],[1236.8,201.3],[1243.4,205.0],[1244.4,205.5],[1248.4,207.7],[1257.5,212.5],[1283.4,226.6]]},
{n:'Calea Turzii',t:'p',c:[[659.2,-497.3],[655.6,-476.2]]},
{n:'Calea Dorobanților',t:'p',c:[[739.7,12.9],[777.4,25.1],[837.6,45.6],[855.9,51.6],[875.8,58.2],[881.3,59.9],[898.2,65.3],[920.5,72.9],[931.8,76.8],[978.5,92.7],[1015.4,105.3],[1047.4,116.3],[1051.2,117.6],[1061.3,121.2],[1070.6,124.5]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[628.7,-340.0],[632.3,-353.0]]},
{n:'Piața Unirii',t:'p',c:[[-5.5,-47.0],[-7.5,-48.4],[-91.2,-104.1],[-93.2,-105.4]]},
{n:'Calea Moților',t:'p',c:[[-1010.9,-670.9],[-999.9,-665.6],[-956.4,-644.6],[-929.1,-631.5]]},
{n:'Calea Dorobanților',t:'p',c:[[1070.6,124.5],[1081.5,129.0],[1085.4,130.5],[1092.2,133.3],[1136.4,151.5]]},
{n:'Piața Ștefan cel Mare',t:'p',c:[[709.2,-262.0],[693.5,-227.9],[686.8,-214.0],[671.5,-182.0],[659.0,-155.8],[654.2,-145.9],[653.0,-143.3]]},
{n:'Strada Horea',t:'p',c:[[-174.6,1160.2],[-175.3,1147.3],[-178.1,1099.0]]},
{n:'Strada Horea',t:'p',c:[[-169.0,1274.7],[-169.9,1257.7],[-171.7,1220.2],[-174.6,1160.2]]},
{n:'Strada Horea',t:'p',c:[[-190.1,518.1],[-188.8,499.5]]},
{n:'Calea Moților',t:'p',c:[[-369.5,-277.7],[-363.8,-273.5],[-358.9,-269.8]]},
{n:'Calea Moților',t:'p',c:[[-527.1,-394.7],[-494.4,-371.2]]},
{n:'Calea Moților',t:'p',c:[[-430.5,-323.3],[-427.3,-321.0]]},
{n:'Calea Moților',t:'p',c:[[-494.4,-371.2],[-485.3,-364.6],[-475.2,-357.0],[-430.5,-323.3]]},
{n:'Strada Milton Lehrer',t:'p',c:[[761.4,-398.8],[761.8,-388.8],[761.8,-379.8]]},
{n:'Calea Moților',t:'p',c:[[-587.8,-438.4],[-573.9,-428.4]]},
{n:'Calea Moților',t:'p',c:[[-567.6,-423.9],[-529.8,-396.6],[-527.1,-394.7]]},
{n:'Calea Moților',t:'p',c:[[-573.9,-428.4],[-567.6,-423.9]]},
{n:'Strada Horea',t:'p',c:[[-178.6,383.8],[-170.1,365.3]]},
{n:'Strada Horea',t:'p',c:[[-182.7,1022.0],[-184.5,992.8]]},
{n:'Strada Petru Maior',t:'p',c:[[-358.9,-269.8],[-357.2,-273.6]]},
{n:'Strada Napoca',t:'p',c:[[-229.0,-418.0],[-224.3,-415.2]]},
{n:'Piața Lucian Blaga',t:'p',c:[[-248.4,-426.0],[-239.6,-422.3],[-235.1,-420.5],[-230.4,-418.6],[-229.0,-418.0]]},
];
let clujGroundMeshes = []; // for raycast Y detection
const _raycaster = new THREE.Raycaster();
const _downDir = new THREE.Vector3(0, -1, 0);
function buildClujScene() {
if (nordsWorldGroup) nordsWorldGroup.visible = false;
clujGroundMeshes = [];
// Terrain: flat plane at ~0 elevation (Cluj center ~380m, scaled to 0)
const terrGeo = new THREE.PlaneGeometry(4000, 4000, 20, 20);
terrGeo.rotateX(-Math.PI / 2);
const terrMesh = new THREE.Mesh(terrGeo, new THREE.MeshStandardMaterial({
color: 0x1a2a1a, roughness: 1, flatShading: true
}));
terrMesh.position.y = -0.1;
scene.add(terrMesh);
clujGroundMeshes.push(terrMesh);
// Roads: flat ribbons from OSM data
const roadVerts = [], roadIdx = [];
let vOff = 0;
for (const road of CLUJ_ROADS) {
const w = road.t === 'p' ? 8 : road.t === 's' ? 6 : 4; // width by road type
for (let i = 0; i < road.c.length - 1; i++) {
const [x1, z1] = road.c[i];
const [x2, z2] = road.c[i + 1];
const dx = x2 - x1, dz = z2 - z1;
const len = Math.sqrt(dx*dx + dz*dz);
if (len < 0.1) continue;
const nx = -dz / len * w / 2, nz = dx / len * w / 2;
roadVerts.push(
x1+nx, 0.02, z1+nz, x1-nx, 0.02, z1-nz,
x2+nx, 0.02, z2+nz, x2-nx, 0.02, z2-nz
);
const v = vOff;
roadIdx.push(v, v+1, v+2, v+1, v+3, v+2);
vOff += 4;
}
}
const roadGeo = new THREE.BufferGeometry();
roadGeo.setAttribute('position', new THREE.Float32BufferAttribute(roadVerts, 3));
roadGeo.setIndex(roadIdx);
roadGeo.computeVertexNormals();
const roadMesh = new THREE.Mesh(roadGeo, new THREE.MeshStandardMaterial({
color: 0x444444, roughness: 0.85, side: THREE.DoubleSide
}));
scene.add(roadMesh);
clujGroundMeshes.push(roadMesh);
// Procedural buildings along roads
const boxGeo = new THREE.BoxGeometry(1, 1, 1);
const buildingCount = Math.min(800, CLUJ_ROADS.length * 6);
const buildingMesh = new THREE.InstancedMesh(boxGeo,
new THREE.MeshStandardMaterial({ color: 0x445566, roughness: 0.8, flatShading: true }),
buildingCount);
const bDummy = new THREE.Object3D();
const bColor = new THREE.Color();
let bIdx = 0;
for (const road of CLUJ_ROADS) {
if (bIdx >= buildingCount) break;
for (let i = 0; i < road.c.length - 1 && bIdx < buildingCount; i += 2) {
const [x1, z1] = road.c[i];
const [x2, z2] = road.c[i + 1] || road.c[i];
const dx = x2 - x1, dz = z2 - z1;
const len = Math.sqrt(dx*dx + dz*dz);
if (len < 5) continue;
const nx = -dz / len, nz = dx / len;
// Place buildings on both sides
for (const side of [-1, 1]) {
if (bIdx >= buildingCount) break;
const offset = 12 + Math.random() * 8;
const bw = 8 + Math.random() * 15;
const bd = 8 + Math.random() * 12;
const bh = 8 + Math.random() * 20;
bDummy.position.set(
(x1+x2)/2 + nx * side * offset,
bh / 2,
(z1+z2)/2 + nz * side * offset
);
bDummy.scale.set(bw, bh, bd);
bDummy.rotation.y = Math.atan2(dx, dz) + (Math.random()-0.5)*0.3;
bDummy.updateMatrix();
buildingMesh.setMatrixAt(bIdx, bDummy.matrix);
// Color by height
const hNorm = bh / 28;
bColor.setRGB(0.2+hNorm*0.1, 0.25+hNorm*0.1, 0.3+hNorm*0.15);
buildingMesh.setColorAt(bIdx, bColor);
bIdx++;
}
}
}
buildingMesh.count = bIdx;
buildingMesh.instanceMatrix.needsUpdate = true;
buildingMesh.instanceColor.needsUpdate = true;
scene.add(buildingMesh);
// Someș River: blue plane crossing E-W
const riverGeo = new THREE.PlaneGeometry(3000, 40);
riverGeo.rotateX(-Math.PI / 2);
const river = new THREE.Mesh(riverGeo, new THREE.MeshStandardMaterial({
color: 0x112244, roughness: 0.3, metalness: 0.5
}));
river.position.set(0, -0.05, 180); // river is ~180m north of center
scene.add(river);
// Street lights along major roads
const lightGeo = new THREE.CylinderGeometry(0.1, 0.15, 5, 6);
const lightMat = new THREE.MeshStandardMaterial({ color: 0x666666, roughness: 0.7 });
const lightTopGeo = new THREE.SphereGeometry(0.3, 6, 6);
const lightTopMat = new THREE.MeshStandardMaterial({ color: 0xffffaa, emissive: 0xffdd66, emissiveIntensity: 1.0 });
for (const road of CLUJ_ROADS) {
if (road.t !== 'p') continue; // only primary roads
for (let i = 0; i < road.c.length; i += 3) {
const [x, z] = road.c[i];
const pole = new THREE.Mesh(lightGeo, lightMat);
pole.position.set(x + 6, 2.5, z);
scene.add(pole);
const top = new THREE.Mesh(lightTopGeo, lightTopMat);
top.position.set(x + 6, 5.2, z);
scene.add(top);
}
}
// Piața Unirii: large lighter ground at center
const squareGeo = new THREE.PlaneGeometry(220, 160);
squareGeo.rotateX(-Math.PI / 2);
const square = new THREE.Mesh(squareGeo, new THREE.MeshStandardMaterial({
color: 0x555555, roughness: 0.7
}));
square.position.set(-20, 0.03, -45); // approximate Piata Unirii position
scene.add(square);
clujGroundMeshes.push(square);
// St. Michael's Church: tall spire at Piata Unirii
const churchBase = new THREE.Mesh(new THREE.BoxGeometry(25, 20, 40),
new THREE.MeshStandardMaterial({ color: 0x998866, roughness: 0.7 }));
churchBase.position.set(-20, 10, -45);
scene.add(churchBase);
const spire = new THREE.Mesh(new THREE.ConeGeometry(4, 60, 8),
new THREE.MeshStandardMaterial({ color: 0x887755, roughness: 0.6 }));
spire.position.set(-20, 50, -45);
scene.add(spire);
console.log('Cluj scene built:', bIdx, 'buildings,', CLUJ_ROADS.length, 'roads');
}
function getClujGroundY(x, z) {
_raycaster.set(new THREE.Vector3(x, 50, z), _downDir);
const hits = _raycaster.intersectObjects(clujGroundMeshes, false);
return hits.length > 0 ? hits[0].point.y : 0;
}
function getNordGroundY(x, z, fallbackY) {
if (!nordGroundMeshes.length) return fallbackY;
_raycaster.set(new THREE.Vector3(x, 160, z), _downDir);
const driveHits = _raycaster.intersectObjects(nordDriveMeshes, false);
if (driveHits.length > 0) {
lastGroundSource = 'road';
lastTerrainY = driveHits[0].point.y;
return driveHits[0].point.y;
}
const hits = _raycaster.intersectObjects(nordGroundMeshes, false);
if (hits.length > 0) {
lastGroundSource = hits[0].object === nordTerrainMesh ? 'terrain' : 'trackside';
lastTerrainY = hits[0].point.y;
return hits[0].point.y;
}
lastGroundSource = 'fallback';
lastTerrainY = fallbackY;
return fallbackY;
}
function getClujStreetName(x, z) {
let bestDist = Infinity, bestName = '';
for (const road of CLUJ_ROADS) {
for (const [rx, rz] of road.c) {
const d = (x-rx)*(x-rx) + (z-rz)*(z-rz);
if (d < bestDist) { bestDist = d; bestName = road.n; }
}
}
return bestName;
}
// =====================================================================
// ENGINE AUDIO
// =====================================================================
// Engine: 3 oscillators for richer flat-6 sound + low-pass filter for warmth
let engineCtx, engineOscs=[], engineGains=[], engineLPF, engineOn=false;
let lastEngineGear = 0;
function engineStart() {
if (engineOn) return;
try {
if (!engineCtx) engineCtx = new (window.AudioContext || window.webkitAudioContext)();
if (engineCtx.state === 'suspended') engineCtx.resume();
// Low-pass filter for warmth (removes harsh high frequencies)
engineLPF = engineCtx.createBiquadFilter();
engineLPF.type = 'lowpass';
engineLPF.frequency.value = 400;
engineLPF.Q.value = 1;
engineLPF.connect(engineCtx.destination);
// Oscillator 1: deep rumble (sawtooth, fundamental)
const o1 = engineCtx.createOscillator(); o1.type = 'sawtooth'; o1.frequency.value = 35;
const g1 = engineCtx.createGain(); g1.gain.value = 0;
o1.connect(g1); g1.connect(engineLPF); o1.start();
// Oscillator 2: mid tone (triangle, octave up)
const o2 = engineCtx.createOscillator(); o2.type = 'triangle'; o2.frequency.value = 70;
const g2 = engineCtx.createGain(); g2.gain.value = 0;
o2.connect(g2); g2.connect(engineLPF); o2.start();
// Oscillator 3: high harmonic (sine, adds character at high RPM)
const o3 = engineCtx.createOscillator(); o3.type = 'sine'; o3.frequency.value = 105;
const g3 = engineCtx.createGain(); g3.gain.value = 0;
o3.connect(g3); g3.connect(engineLPF); o3.start();
engineOscs = [o1, o2, o3];
engineGains = [g1, g2, g3];
engineOn = true;
} catch (e) {}
}
function engineStop() {
if (!engineOn) return;
try { engineOscs.forEach(o => o.stop()); } catch (e) {}
engineOn = false;
}
function engineUpdate(sp) {
if (!engineOn) return;
try {
const speed = sp * MAX_SPEED;
let g = 0;
for (g = 0; g < GEAR_TABLE.length; g++) if (speed < GEAR_TABLE[g][0]) break;
g = Math.min(g, GEAR_TABLE.length - 1);
// Gear shift click
if (g > lastEngineGear && speed > 2) zzfx(.05,.02,45,.005,.02,.01,2,0,0,0,0,0,0,0,0,0,0,.2);
lastEngineGear = g;
// RPM within gear
const gBottom = g > 0 ? GEAR_TABLE[g-1][0] : 0;
const gTop = GEAR_TABLE[g][0];
const rpm = gTop > gBottom ? Math.max(0, Math.min(1, (speed - gBottom) / (gTop - gBottom))) : 0;
// Frequencies: base rises with speed, RPM adds within-gear climb
const base = 35 + sp * 45; // 35Hz idle → 80Hz max
const rpmAdd = rpm * 20; // 0-20Hz per gear
const f = base + rpmAdd;
engineOscs[0].frequency.value = f; // fundamental
engineOscs[1].frequency.value = f * 2.01; // octave (slightly detuned)
engineOscs[2].frequency.value = f * 3.02; // 3rd harmonic (adds bite at high RPM)
// Volume: deeper at idle, louder and brighter at speed
engineGains[0].gain.value = 0.012 + sp * 0.018; // rumble always present
engineGains[1].gain.value = 0.004 + sp * 0.012; // mid grows with speed
engineGains[2].gain.value = rpm * sp * 0.008; // high harmonic only at high RPM
// Open the filter as RPM/speed increases (brighter sound at high RPM)
engineLPF.frequency.value = 300 + rpm * 400 + sp * 200;
} catch (e) {}
}
// =====================================================================
// GAME STATE — Free world-space driving
// =====================================================================
const MAX_SPEED = 82; // m/s hard safety cap; real top speed is drag-limited below this.
const BRAKING = 42; // m/s² peak braking before grip limits.
const AERO_DRAG = 0.00082;
const ROLLING_DRAG = 0.42;
const WHEELBASE_M = 2.8;
const BASE_GRIP_MS2 = 15.2;
const STEER_LIMIT = 0.66;
// Gear-based acceleration: each gear has a speed range and power curve
// [maxSpeedForGear_ms, acceleration_ms2]
// Real 911 GT3: 0-100 in 3.4s, 0-200 in ~11s, top 318 km/h
const GEAR_TABLE = [
[15, 35], // 1st: hard launch
[28, 28], // 2nd
[40, 20], // 3rd
[53, 14], // 4th
[66, 9], // 5th
[82, 6.5], // 6th: drag-limited, not a hard limiter
];
// Pre-bake spline samples for fast nearest-point lookup + minimap bounds
const SPLINE_SAMPLES = 4096;
const splinePts = [];
function rebakeSplinePts() {
splinePts.length = 0;
if (!spline) return;
let minX = Infinity, maxX = -Infinity, minZ = Infinity, maxZ = -Infinity;
const sourceSamples = trackSamples.length ? trackSamples : null;
const count = sourceSamples ? sourceSamples.length : SPLINE_SAMPLES;
for (let i = 0; i < count; i++) {
const t = i / count;
const src = sourceSamples ? sourceSamples[i] : null;
const p = src || spline.getPointAt(t);
const q = {
t: src?.t ?? t,
distanceM: src?.distanceM ?? t * trackMeta.lengthM,
x: p.x,
y: p.y,
z: p.z,
};
splinePts.push(q);
if (p.x < minX) minX = p.x;
if (p.x > maxX) maxX = p.x;
if (p.z < minZ) minZ = p.z;
if (p.z > maxZ) maxZ = p.z;
}
const pad = 220;
minimapBounds = { minX: minX - pad, maxX: maxX + pad, minZ: minZ - pad, maxZ: maxZ + pad };
}
function findNearestT(wx, wz) {
const nearest = findNearestOnSamples(wx, wz, trackSamples.length ? trackSamples : splinePts);
lastNearestTrack = nearest;
return nearest;
}
const NORD_DATA_BASE = new URL('./data/', import.meta.url);
async function loadNordschleifeTrack() {
const [trackJ, secJ, cpJ, lmJ, terrJ, propsJ] = await Promise.all([
fetch(new URL('track.json', NORD_DATA_BASE).href).then((r) => r.json()),
fetch(new URL('sectors.json', NORD_DATA_BASE).href).then((r) => r.json()),
fetch(new URL('checkpoints.json', NORD_DATA_BASE).href).then((r) => r.json()),
fetch(new URL('landmarks.json', NORD_DATA_BASE).href).then((r) => r.json()),
fetch(new URL('terrain.json', NORD_DATA_BASE).href).then((r) => r.json()),
fetch(new URL('props.json', NORD_DATA_BASE).href)
.then((r) => (r.ok ? r.json() : { props: [] }))
.catch(() => ({ props: [] })),
]);
nordSectors = secJ.sectors || [];
nordCheckpoints = cpJ.checkpoints || [];
nordLandmarks = lmJ.landmarks || [];
nordTerrainCfg = terrJ;
nordProps = propsJ.props || [];
const samples = trackJ.samples || [];
if (samples.length < 8) throw new Error('track.json: not enough samples');
trackMeta = { lengthM: trackJ.lengthM || 20800, name: trackJ.name || 'Nordschleife' };
trackSamples = samples.map((s, i) => ({
i,
t: Number.isFinite(s.t) ? s.t : i / samples.length,
distanceM: Number.isFinite(s.distanceM) ? s.distanceM : (i / samples.length) * trackMeta.lengthM,
x: Number(s.x) || 0,
y: Number(s.y) || 0,
z: Number(s.z) || 0,
widthM: Number(s.widthM) || ROAD_W * 2,
}));
splinePoints = trackSamples.map((s) => new THREE.Vector3(s.x, s.y, s.z));
// The generated data is already arc-length sampled from OSM. Interpolate it directly so tight corners
// cannot be rounded or cut by Catmull-Rom overshoot.
spline = {
closed: true,
getPointAt: sampleTrackAt,
getTangentAt: sampleTrackTangentAt,
};
spline.closed = true;
splineLen = trackMeta.lengthM;
buildNordschleifeWorld();
rebakeSplinePts();
trackReady = true;
const ft = document.querySelector('.ftr span:last-child');
if (ft) ft.textContent = `${trackMeta.name} ${(trackMeta.lengthM / 1000).toFixed(1)}km`;
}
// Car state in WORLD SPACE
let carX = 0, carZ = 0, carY = 0; // world position
let carAngle = 0; // heading in world space (radians)
let carSpeed = 0; // forward speed (m/s)
let carVelX = 0, carVelZ = 0;
let steerAmount = 0;
let yawRate = 0;
let prevSector = 0; // for lap detection
let lapTime = 0, currentLap = 0, lapFlashAlpha = 0;
let currentSection = '', sectionFade = 0;
let STATE = 'intro';
let activeMap = 'nordschleife'; // 'nordschleife' or 'cluj'
let cheatBuffer = '';
let raceResetHold = 0;
let crashShakeT = 0;
// --- Multiplayer presence (optional relay; zero impact when disabled/unreachable) ---
function getMpRelayUrl() {
if (typeof window.NORD_MP_RELAY_URL === 'string' && window.NORD_MP_RELAY_URL.length > 0) return window.NORD_MP_RELAY_URL;
if (location.hostname === 'localhost' || location.hostname === '127.0.0.1') return 'ws://localhost:8090';
return '';
}
const mpName = 'Racer' + Math.floor(1000 + Math.random() * 9000);
const mpColor = PAL[Math.floor(Math.random() * PAL.length)];
let mpSocket = null;
let mpPeerId = null;
let mpConnected = false;
let mpBackoffMs = 1000;
let mpReconnectTimer = null;
const mpPlayers = new Map();
/** Server-driven session (tourist vs race); client also tracks local checkpoint progress */
let mpSession = { mode: 'tourist', phase: 'idle', countdown: null, totalLaps: 1, hostId: null };
let roundState = { roundType: 'checkpoint_sprint', roundPhase: 'idle', roundIndex: 0, roundEndsAt: 0, roundLiveAt: 0 };
let mpStandings = [];
let localRaceNextCp = 1;
let localRaceFinished = false;
let chaosScore = 0;
/** @type {{ x: number, z: number, hit: boolean }[]} */
let chaosPickupPos = [];
let lastCpGateHover = -1;
let soloRace = { phase: 'tourist', countdown: 0, nextCp: 1, laps: 1, totalLaps: 1, finished: false };
let menuOpen = false;
const perfOverlay = document.createElement('div');
perfOverlay.style.cssText = 'position:fixed;left:8px;bottom:8px;z-index:200;font:500 10px/1.25 ui-monospace,Menlo,monospace;color:#8fa;background:rgba(0,0,0,0.32);padding:4px 6px;border:1px solid rgba(255,255,255,0.12);display:none;pointer-events:none;';
document.body.appendChild(perfOverlay);
if (debugTrackMode) {
trackDebugEl = document.createElement('div');
trackDebugEl.style.cssText = 'position:fixed;left:8px;top:8px;z-index:210;font:500 11px/1.35 ui-monospace,Menlo,monospace;color:#d7f7ff;background:rgba(0,0,0,0.55);padding:7px 8px;border:1px solid rgba(255,255,255,0.18);white-space:pre;pointer-events:none;';
document.body.appendChild(trackDebugEl);
}
function mpRound(v, places) {
const m = Math.pow(10, places);
return Math.round(v * m) / m;
}
function mpSend(payload) {
if (!mpSocket || mpSocket.readyState !== 1) return false;
const raw = JSON.stringify(payload);
sessionPerf.netOut += raw.length;
sessionPerf.msgOut++;
mpSocket.send(raw);
return true;
}
function mpHudRefresh() {
try {
const st = document.getElementById('mp-status');
const cnt = document.getElementById('mp-count');
if (!st || !cnt) return;
const open = mpSocket && mpSocket.readyState === 1;
st.style.display = open ? '' : 'none';
if (open) cnt.textContent = String(mpPlayers.size);
} catch (_) {}
}
const raceBannerEl = document.getElementById('race-banner');
const minimapWrapEl = document.getElementById('minimap-wrap');
const standingsStripEl = document.getElementById('standings-strip');
const minimapCanvasEl = document.getElementById('minimap');
const menuOverlayEl = document.getElementById('menu-overlay');
const menuInfoEl = document.getElementById('menu-info');
const menuResumeBtn = document.getElementById('menu-resume');
const menuResetBtn = document.getElementById('menu-reset');
const menuModeBtn = document.getElementById('menu-mode');
const menuGuideBtn = document.getElementById('menu-guide');
function escapeHtml(str) {
return String(str).replace(/[&<>"']/g, (c) => ({ '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' }[c]));
}
function roundLabel(rt) {
return 'Checkpoint Sprint';
}
function roundObjective(rt) {
return 'Race checkpoints in order; finish fastest.';
}
function getRoundSummaryText() {
const liveRt = roundState.roundType || 'checkpoint_sprint';
const phase = roundState.roundPhase || 'idle';
return `Round ${roundState.roundIndex || 0}: ${roundLabel(liveRt)}\nPhase: ${phase}\nObjective: ${roundObjective(liveRt)}`;
}
function setMenuInfoMode() {
if (!menuInfoEl) return;
menuInfoEl.textContent = getRoundSummaryText();
}
function setMenuInfoGuide() {
if (!menuInfoEl) return;
menuInfoEl.textContent = [
'Drive: WASD / Arrows',
'Press T to request a multiplayer race (host-controlled).',
'Checkpoint Sprint: pass each gate in order and finish cleanly.',
'Tourist mode stays open when the relay is unavailable.',
'Use this menu for reset and quick help.',
].join('\n');
}
function toggleMenu(open) {
menuOpen = open === undefined ? !menuOpen : !!open;
if (menuOverlayEl) menuOverlayEl.classList.toggle('show', menuOpen && STATE === 'playing');
if (menuOpen) {
keysHeld.clear();
setMenuInfoMode();
}
}
function mpRaceUiRefresh() {
try {
const n = activeMap === 'nordschleife';
const cpLast = Math.max(1, nordCheckpoints.length - 1);
const mpRaceUi = n && (mpSession.mode === 'race' || mpSession.phase === 'countdown' || mpSession.phase === 'results');
const soloRaceUi = n && (soloRace.phase === 'countdown' || soloRace.phase === 'live' || soloRace.phase === 'results');
const raceUi = mpRaceUi || soloRaceUi;
if (raceBannerEl) {
raceBannerEl.classList.toggle('show', raceUi);
const amHost = !!mpPeerId && mpSession.hostId === mpPeerId;
if (soloRace.phase === 'countdown') {
raceBannerEl.textContent = String(Math.max(1, Math.ceil(soloRace.countdown)));
} else if (soloRace.phase === 'live') {
raceBannerEl.textContent = `SOLO CHECKPOINT SPRINT · lap ${soloRace.laps}/${soloRace.totalLaps} · cp ${soloRace.nextCp}/${cpLast}`;
} else if (soloRace.phase === 'results') {
raceBannerEl.textContent = 'SOLO RACE FINISHED · T = restart';
} else if (mpSession.phase === 'countdown' && mpSession.countdown != null) {
raceBannerEl.textContent = `${mpSession.countdown > 0 ? String(mpSession.countdown) : 'GO'} · ${roundLabel(roundState.roundType)}`;
} else if (mpSession.phase === 'live' && mpSession.mode === 'race') {
raceBannerEl.textContent = `${roundLabel(roundState.roundType).toUpperCase()} · cp ${localRaceNextCp}/${cpLast}${amHost ? ' · HOST' : ''}`;
} else if (mpSession.phase === 'results') {
raceBannerEl.textContent = `ROUND RESULTS · ${roundLabel(roundState.roundType).toUpperCase()}`;
} else {
raceBannerEl.textContent = mpConnected ? `TOURIST DRIVE · T = race${amHost ? ' (host)' : ''}` : 'TOURIST DRIVE · T = solo race';
}
}
const showMap = n && ((mpSession.mode === 'race' && (mpSession.phase === 'live' || mpSession.phase === 'countdown')) || soloRace.phase === 'live' || soloRace.phase === 'countdown');
if (minimapWrapEl) minimapWrapEl.classList.toggle('show', showMap && trackReady);
if (standingsStripEl) {
standingsStripEl.classList.toggle('show', raceUi && (mpStandings.length > 0 || soloRaceUi));
if (mpRaceUi && mpStandings.length) {
standingsStripEl.innerHTML = mpStandings.map((r) => `<div>${r.place}. ${escapeHtml(String(r.name || r.id || '?').slice(0, 14))} · L${r.laps || 1} · CP${r.nextCp || 1}/${cpLast} ${r.finished ? '✓' : ''}</div>`).join('');
} else if (soloRaceUi) {
standingsStripEl.innerHTML = `<div>1. YOU · L${soloRace.laps}/${soloRace.totalLaps}${soloRace.finished ? ' ✓' : ''}</div>`;
}
}
if (menuOpen) setMenuInfoMode();
} catch (_) {}
}
function drawMinimap() {
if (!minimapCanvasEl || !splinePts.length || activeMap !== 'nordschleife') return;
if (!((mpSession.mode === 'race' && (mpSession.phase === 'live' || mpSession.phase === 'countdown')) || soloRace.phase === 'live' || soloRace.phase === 'countdown')) return;
const ctx = minimapCanvasEl.getContext('2d');
const W = minimapCanvasEl.width;
const H = minimapCanvasEl.height;
const { minX, maxX, minZ, maxZ } = minimapBounds;
const rw = Math.max(1e-3, maxX - minX);
const rh = Math.max(1e-3, maxZ - minZ);
const mx = (x) => ((x - minX) / rw) * W;
const mz = (z) => ((z - minZ) / rh) * H;
ctx.fillStyle = 'rgba(0,0,0,0.55)';
ctx.fillRect(0, 0, W, H);
ctx.strokeStyle = 'rgba(255,255,255,0.22)';
ctx.lineWidth = 1.2;
ctx.beginPath();
for (let i = 0; i < splinePts.length; i++) {
const q = splinePts[i];
const px = mx(q.x);
const py = H - mz(q.z);
if (i === 0) ctx.moveTo(px, py);
else ctx.lineTo(px, py);
}
ctx.closePath();
ctx.stroke();
ctx.fillStyle = 'rgba(0,255,120,0.4)';
for (const cp of nordCheckpoints) {
ctx.beginPath();
ctx.arc(mx(cp.x), H - mz(cp.z), 2.2, 0, Math.PI * 2);
ctx.fill();
}
ctx.fillStyle = '#ffbe0b';
ctx.beginPath();
ctx.arc(mx(carX), H - mz(carZ), 3.2, 0, Math.PI * 2);
ctx.fill();
for (const [, e] of mpPlayers) {
if (!e.group.visible) continue;
ctx.fillStyle = '#00f5d4';
ctx.beginPath();
ctx.arc(mx(e.group.position.x), H - mz(e.group.position.z), 2.4, 0, Math.PI * 2);
ctx.fill();
}
}
function mpDisposeObject3D(obj) {
obj.traverse((ch) => {
if (ch.geometry) ch.geometry.dispose();
if (ch.material) {
if (Array.isArray(ch.material)) ch.material.forEach((m) => { if (m.map) m.map.dispose(); m.dispose(); });
else { if (ch.material.map) ch.material.map.dispose(); ch.material.dispose(); }
}
});
}
function mpRemovePlayer(id) {
try {
const e = mpPlayers.get(id);
if (!e) return;
scene.remove(e.group);
mpDisposeObject3D(e.group);
mpPlayers.delete(id);
mpHudRefresh();
} catch (_) {}
}
function mpAddPlayer(p) {
try {
if (!p || !p.id || p.id === mpPeerId) return;
if (mpPlayers.has(p.id)) mpRemovePlayer(p.id);
const group = createRemoteCar(p.name || 'Racer', p.color || '#888', p.carModel);
group.visible = true;
const ts = performance.now();
const x = Number(p.x) || 0, z = Number(p.z) || 0, y = Number(p.y) || 0, a = Number(p.a) || 0, s = Number(p.s) || 0;
const st = { x, y, z, a, s, ts };
mpPlayers.set(p.id, { group, prev: { ...st }, curr: { ...st } });
group.position.set(x, y, z);
group.rotation.y = a;
mpHudRefresh();
} catch (_) {}
}
function mpOnUpdated(msg) {
try {
const id = msg.id;
if (!id || id === mpPeerId) return;
let e = mpPlayers.get(id);
if (!e) {
mpAddPlayer({ id, name: msg.name || 'Racer', color: msg.color || '#888', carModel: msg.carModel, x: msg.x, z: msg.z, y: msg.y, a: msg.a, s: msg.s });
e = mpPlayers.get(id);
if (!e) return;
}
const ts = performance.now();
const x = Number(msg.x) || 0, z = Number(msg.z) || 0, y = Number(msg.y) || 0, a = Number(msg.a) || 0, s = Number(msg.s) || 0;
e.prev = { ...e.curr };
e.curr = { x, y, z, a, s, ts };
} catch (_) {}
}
function mpShortestAngleDelta(from, to) {
const TAU = Math.PI * 2;
return ((to - from + Math.PI * 3) % TAU) - Math.PI;
}
function mpUpdateRemoteCars() {
if (mpPlayers.size === 0) return;
const now = performance.now();
for (const [id, e] of mpPlayers) {
const age = now - e.curr.ts;
if (age > 15000) { mpRemovePlayer(id); continue; }
if (age > 5000) { e.group.visible = false; continue; }
e.group.visible = true;
const span = Math.max(1, e.curr.ts - e.prev.ts);
const renderTs = now - 120;
let u = span > 0 ? (renderTs - e.prev.ts) / span : 1;
let ex = 0, ez = 0, ey = 0;
if (u > 1 && age > 220) {
const late = Math.min(0.35, (age - 220) / 1000);
const dist = Math.max(0, e.curr.s) * late;
ex = Math.sin(e.curr.a) * dist;
ez = Math.cos(e.curr.a) * dist;
ey = 0;
}
u = Math.max(0, Math.min(1, u));
const x = e.prev.x + (e.curr.x - e.prev.x) * u + ex;
const y = e.prev.y + (e.curr.y - e.prev.y) * u + ey;
const z = e.prev.z + (e.curr.z - e.prev.z) * u + ez;
e.group.position.set(x, y, z);
const a0 = e.prev.a, a1 = e.curr.a;
let ang = a0 + mpShortestAngleDelta(a0, a1) * u;
if (u > 1 && age > 150) ang = e.curr.a;
e.group.rotation.y = ang;
}
}
function mpSendJoin() {
try {
mpSend({ t: 'join', map: activeMap, name: mpName, color: mpColor, carModel: myCarModelIdx });
} catch (_) {}
}
function mpScheduleReconnect() {
try {
if (mpReconnectTimer) return;
const url = getMpRelayUrl();
if (!url) return;
mpReconnectTimer = setTimeout(() => {
mpReconnectTimer = null;
mpOpenSocket();
}, mpBackoffMs);
mpBackoffMs = Math.min(15000, Math.round(mpBackoffMs * 2));
} catch (_) {}
}
function mpOpenSocket() {
try {
const url = getMpRelayUrl();
if (!url) return;
if (mpSocket && (mpSocket.readyState === 0 || mpSocket.readyState === 1)) return;
mpSocket = new WebSocket(url);
mpSocket.onopen = () => {
mpBackoffMs = 1000;
mpSendJoin();
};
mpSocket.onmessage = (ev) => {
try {
sessionPerf.netIn += String(ev.data || '').length;
sessionPerf.msgIn++;
const msg = JSON.parse(ev.data);
const t = msg.t;
if (t === 'welcome') {
mpPeerId = msg.id;
mpConnected = true;
mpHudRefresh();
return;
}
if (t === 'snapshot') {
for (const pl of msg.players || []) mpAddPlayer(pl);
mpHudRefresh();
return;
}
if (t === 'joined') { mpAddPlayer(msg); mpHudRefresh(); return; }
if (t === 'updated') { mpOnUpdated(msg); return; }
if (t === 'departed') { mpRemovePlayer(msg.id); mpHudRefresh(); return; }
if (t === 'session_state') {
mpSession = {
mode: msg.mode || 'tourist',
phase: msg.phase || 'idle',
countdown: msg.countdown ?? null,
totalLaps: msg.totalLaps ?? 1,
hostId: msg.hostId || null,
};
mpRaceUiRefresh();
return;
}
if (t === 'host_changed') {
mpSession.hostId = msg.id || null;
mpRaceUiRefresh();
return;
}
if (t === 'round_state') {
roundState = {
roundType: msg.roundType || 'checkpoint_sprint',
roundPhase: msg.roundPhase || 'idle',
roundIndex: Number(msg.roundIndex) || 0,
roundEndsAt: Number(msg.roundEndsAt) || 0,
roundLiveAt: Number(msg.roundLiveAt) || 0,
};
mpRaceUiRefresh();
return;
}
if (t === 'countdown_tick') {
mpSession.phase = 'countdown';
mpSession.countdown = msg.n;
soloRace.phase = 'tourist';
mpRaceUiRefresh();
return;
}
if (t === 'race_go') {
mpSession.mode = 'race';
mpSession.phase = 'live';
mpSession.countdown = null;
localRaceNextCp = 1;
localRaceFinished = false;
lastCpGateHover = -1;
chaosScore = 0;
soloRace.phase = 'tourist';
for (const p of chaosPickupPos) p.hit = false;
mpRaceUiRefresh();
return;
}
if (t === 'standings') {
mpStandings = Array.isArray(msg.rows) ? msg.rows : [];
if (mpPeerId) {
const row = mpStandings.find((r) => r.id === mpPeerId);
if (row && Number.isFinite(row.nextCp)) {
localRaceNextCp = Math.min(Math.max(1, nordCheckpoints.length - 1), Math.max(0, row.nextCp));
localRaceFinished = !!row.finished;
}
}
mpRaceUiRefresh();
return;
}
if (t === 'race_finish') {
mpSession.phase = 'results';
mpRaceUiRefresh();
return;
}
if (t === 'chaos_score') {
if (!msg.id || msg.id === mpPeerId) chaosScore = Number(msg.score) || 0;
mpRaceUiRefresh();
return;
}
} catch (_) {}
};
mpSocket.onclose = () => {
mpConnected = false;
mpPeerId = null;
for (const pid of [...mpPlayers.keys()]) mpRemovePlayer(pid);
mpHudRefresh();
mpScheduleReconnect();
};
mpSocket.onerror = () => { try { mpSocket.close(); } catch (_) {} };
} catch (_) {
mpScheduleReconnect();
}
}
function mpEnsureRaceJoin() {
try {
const url = getMpRelayUrl();
if (!url) return;
if (mpSocket && mpSocket.readyState === 1) mpSendJoin();
else mpOpenSocket();
} catch (_) {}
}
setInterval(() => {
try {
if (!mpConnected || STATE !== 'playing' || !mpSocket || mpSocket.readyState !== 1) return;
mpSend({
t: 'update',
x: mpRound(carX, 1),
z: mpRound(carZ, 1),
y: mpRound(carY, 1),
a: mpRound(carAngle, 3),
s: mpRound(carSpeed, 1),
});
} catch (_) {}
}, 100);
let bestLap = null;
try { const bl = parseFloat(localStorage.getItem('mf_nord3d_best_v2')); if (bl > 0) bestLap = bl; } catch (e) {}
if (bestLap) document.getElementById('btv').textContent = formatTime(bestLap);
const keysHeld = new Set();
let touchLeft = false, touchRight = false, touchAccel = false;
let touchSteerAmount = 0; // -1 to 1, proportional
// Orbit camera: mouse drag to look around car, auto-centers back
let orbitYaw = 0, orbitPitch = 0; // current orbit angles
let orbitDragging = false;
let orbitLastX = 0, orbitLastY = 0;
const isMobile = 'ontouchstart' in window || navigator.maxTouchPoints > 0;
function formatTime(t) {
const m = Math.floor(t / 60), s = Math.floor(t - m * 60), ms = Math.floor((t - Math.floor(t)) * 10);
return m + ':' + (s < 10 ? '0' : '') + s + '.' + ms;
}
// Smooth camera target
const _camLook = new THREE.Vector3();
// =====================================================================
// UPDATE — Free world-space car physics
// =====================================================================
function update(dt) {
const inputFrozen = raceResetHold > 0 || menuOpen;
if (raceResetHold > 0) {
if (flashEl) {
flashEl.style.opacity = '1';
if (raceResetHold > 1.1) { flashEl.textContent = 'RESET'; flashEl.style.color = '#00ff41'; }
else if (raceResetHold > 0.7) { flashEl.textContent = '3'; flashEl.style.color = '#fff'; }
else if (raceResetHold > 0.3) { flashEl.textContent = '2'; flashEl.style.color = '#fff'; }
else { flashEl.textContent = '1'; flashEl.style.color = '#fff'; }
}
raceResetHold = Math.max(0, raceResetHold - dt);
if (raceResetHold <= 0 && flashEl) flashEl.style.opacity = '0';
carSpeed = 0;
carVelX = 0;
carVelZ = 0;
yawRate = 0;
steerAmount = 0;
}
const goFwd = !inputFrozen && (keysHeld.has('up') || touchAccel);
const goBack = !inputFrozen && keysHeld.has('down');
const goLeft = !inputFrozen && (keysHeld.has('left') || touchLeft);
const goRight = !inputFrozen && (keysHeld.has('right') || touchRight);
// --- 1. Simcade traction-limited velocity model ---
let steerInput = 0;
if (goLeft) steerInput = 1;
if (goRight) steerInput = -1;
if (Math.abs(touchSteerAmount) > 0.05) steerInput = touchSteerAmount;
let preNearest = { t: 0, signedOffset: 0 };
let surfaceGrip = 1;
let sectionGrip = 1;
if (activeMap !== 'cluj' && splinePts.length) {
preNearest = findNearestT(carX, carZ);
const surface = getTrackSurface(preNearest.signedOffset || 0);
surfaceGrip = surface.grip;
sectionGrip = getSectionAt(preNearest.t).grip ?? 1;
lastSurfaceKind = surface.kind;
}
const fwdX = Math.sin(carAngle);
const fwdZ = Math.cos(carAngle);
const rightX = Math.cos(carAngle);
const rightZ = -Math.sin(carAngle);
let localForward = carVelX * fwdX + carVelZ * fwdZ;
let localSide = carVelX * rightX + carVelZ * rightZ;
if (localForward < 0) localForward *= 0.94;
let curGearIdx = 0;
const speedAbs = Math.max(0, localForward);
for (let g = 0; g < GEAR_TABLE.length; g++) {
if (speedAbs < GEAR_TABLE[g][0]) { curGearIdx = g; break; }
curGearIdx = g;
}
const gearTop = GEAR_TABLE[curGearIdx][0];
const gearBottom = curGearIdx > 0 ? GEAR_TABLE[curGearIdx - 1][0] : 0;
const gearFraction = gearTop > gearBottom ? Math.max(0, Math.min(1, (speedAbs - gearBottom) / (gearTop - gearBottom))) : 0;
const engineAccel = GEAR_TABLE[curGearIdx][1] * Math.max(0.16, 1 - gearFraction * 0.86);
const throttle = goFwd ? 1 : 0;
const brake = goBack ? 1 : 0;
const drag = AERO_DRAG * localForward * Math.abs(localForward) + ROLLING_DRAG + (throttle ? 0 : 2.2);
const gripBudget = BASE_GRIP_MS2 * sectionGrip * surfaceGrip;
const longDemand = throttle * engineAccel - brake * BRAKING - Math.sign(localForward || 1) * drag;
const maxLong = gripBudget * (brake ? 1.15 : 1.05);
const longAccel = Math.max(-maxLong, Math.min(maxLong, longDemand));
localForward = Math.max(0, Math.min(MAX_SPEED, localForward + longAccel * dt));
const speedNorm = Math.min(1, localForward / 70);
const steerLimit = STEER_LIMIT * (1 - 0.34 * speedNorm);
const steerTarget = steerInput * steerLimit;
steerAmount += (steerTarget - steerAmount) * (1 - Math.exp(-7.5 * dt));
const desiredYaw = Math.tan(steerAmount) * localForward / WHEELBASE_M;
const lateralDemand = Math.abs(desiredYaw * localForward) * 0.72;
const gripRatio = lateralDemand > gripBudget && lateralDemand > 0 ? gripBudget / lateralDemand : 1;
const steerAuthority = 0.32 + 0.68 * gripRatio;
const targetYawRate = desiredYaw * steerAuthority;
yawRate += (targetYawRate - yawRate) * (1 - Math.exp(-8.5 * dt));
carAngle += yawRate * dt;
const lateralGrip = gripBudget * (0.75 + 0.25 * gripRatio);
const sideSign = Math.sign(localSide);
localSide -= sideSign * Math.min(Math.abs(localSide), lateralGrip * dt);
const slipExcess = Math.max(0, lateralDemand - gripBudget);
if (slipExcess > 0) {
localSide += -Math.sign(steerAmount || 1) * Math.min(3.2, slipExcess * 0.008) * dt;
localForward *= Math.max(0, 1 - Math.min(0.18, slipExcess * 0.002) * dt);
}
lastGripBudget = gripBudget;
lastSlipAmount = Math.abs(localSide) + slipExcess * 0.02;
const newFwdX = Math.sin(carAngle);
const newFwdZ = Math.cos(carAngle);
const newRightX = Math.cos(carAngle);
const newRightZ = -Math.sin(carAngle);
carVelX = newFwdX * localForward + newRightX * localSide;
carVelZ = newFwdZ * localForward + newRightZ * localSide;
const velMag = Math.hypot(carVelX, carVelZ);
if (velMag > MAX_SPEED) {
carVelX *= MAX_SPEED / velMag;
carVelZ *= MAX_SPEED / velMag;
}
carX += carVelX * dt;
carZ += carVelZ * dt;
carSpeed = Math.hypot(carVelX, carVelZ);
// --- 4. Find road surface ---
let nearest, onRoad, surfaceY;
if (activeMap === 'cluj') {
const groundY = getClujGroundY(carX, carZ);
lastRoadY = groundY;
lastTerrainY = groundY;
const targetY = groundY + CAR_CLEARANCE;
carY += (targetY - carY) * (1 - Math.exp(-16 * dt));
onRoad = true; // in open world, all roads are meshes
nearest = { t: 0, dist: 0, y: groundY };
surfaceY = groundY;
} else {
nearest = findNearestT(carX, carZ);
const surface = getTrackSurface(nearest.signedOffset || 0);
lastSurfaceKind = surface.kind;
onRoad = Math.abs(nearest.signedOffset || 0) <= ROAD_W;
const roadY = getRoadRibbonY(nearest);
const groundY = onRoad ? roadY : getNordGroundY(carX, carZ, nearest.y);
lastRoadY = roadY;
lastTerrainY = groundY;
if (onRoad) lastGroundSource = 'road-analytic';
const targetY = groundY + CAR_CLEARANCE;
const yDelta = targetY - carY;
const yFollow = Math.abs(yDelta) > 1.5 ? 1 : (1 - Math.exp(-18 * dt));
carY += yDelta * yFollow;
surfaceY = groundY;
}
// Surface drag: curbs and shoulders are recoverable; deep grass slows the car decisively.
if (activeMap !== 'cluj') {
const surface = getTrackSurface(nearest.signedOffset || 0);
if (surface.drag > 0) {
const offAmount = Math.min(1, Math.max(0, (Math.abs(nearest.signedOffset || 0) - ROAD_W) / 20));
const dragMul = Math.max(0, 1 - (surface.drag + offAmount * 2.2) * dt);
carVelX *= dragMul;
carVelZ *= dragMul;
carSpeed = Math.hypot(carVelX, carVelZ);
}
const headingDot = Math.max(-1, Math.min(1, newFwdX * (nearest.tangentX || 0) + newFwdZ * (nearest.tangentZ || 1)));
const headingError = Math.acos(headingDot);
if (carSpeed > 18 && headingError > 0.55) {
const headingMul = Math.max(0, 1 - (headingError - 0.55) * 0.9 * dt);
carVelX *= headingMul;
carVelZ *= headingMul;
carSpeed = Math.hypot(carVelX, carVelZ);
}
const limit = ROAD_W + 24;
const offAbs = Math.abs(nearest.signedOffset || 0);
if (offAbs > limit && nearest.centerX != null) {
const side = nearest.signedOffset < 0 ? -1 : 1;
carX = nearest.centerX + nearest.rightX * side * limit;
carZ = nearest.centerZ + nearest.rightZ * side * limit;
carVelX *= 0.7;
carVelZ *= 0.7;
carSpeed *= Math.max(0.35, 1 - 2.5 * dt);
carSpeed = Math.hypot(carVelX, carVelZ);
crashShakeT = Math.max(crashShakeT, 0.12);
}
}
// Turning at speed: slight grip cost (understeer feel)
if (steerInput !== 0 && carSpeed > 15) {
const steerScrub = (1 - 0.018 * Math.abs(speedNorm) * dt);
carVelX *= steerScrub;
carVelZ *= steerScrub;
carSpeed = Math.hypot(carVelX, carVelZ);
}
// --- 5. Lap/checkpoint progression ---
if (activeMap !== 'cluj') {
if (soloRace.phase === 'countdown') {
soloRace.countdown = Math.max(0, soloRace.countdown - dt);
if (soloRace.countdown <= 0) {
soloRace.phase = 'live';
soloRace.nextCp = 1;
soloRace.laps = 1;
soloRace.finished = false;
lapTime = 0;
}
mpRaceUiRefresh();
}
const curSector = Math.floor(nearest.t * 100);
const touristMode = mpSession.mode !== 'race' && soloRace.phase === 'tourist';
if (touristMode && prevSector > 90 && curSector < 10 && carSpeed > 5 && lapTime > 20) completeLap();
prevSector = curSector;
}
// --- 5b. Race progression: multiplayer + solo checkpoint model ---
if (activeMap !== 'cluj' && mpSession.mode === 'race' && mpSession.phase === 'live' && mpSocket && mpSocket.readyState === 1) {
if (!localRaceFinished && nordCheckpoints.length) {
const cp = nordCheckpoints.find((c) => c.index === localRaceNextCp);
if (cp) {
const rad = Number(cp.radiusM) || 45;
const dx = carX - cp.x;
const dz = carZ - cp.z;
const inside = dx * dx + dz * dz < rad * rad;
if (inside) {
if (lastCpGateHover !== localRaceNextCp) {
lastCpGateHover = localRaceNextCp;
mpSend({ t: 'checkpoint_hit', index: localRaceNextCp });
}
} else if (lastCpGateHover === localRaceNextCp) {
lastCpGateHover = -1;
}
}
}
}
if (activeMap !== 'cluj' && soloRace.phase === 'live' && !soloRace.finished && nordCheckpoints.length) {
const finishCp = Math.max(1, nordCheckpoints.length - 1);
const cp = nordCheckpoints.find((c) => c.index === soloRace.nextCp);
if (cp) {
const rad = Number(cp.radiusM) || 45;
const dx = carX - cp.x;
const dz = carZ - cp.z;
const inside = dx * dx + dz * dz < rad * rad;
if (inside && lastCpGateHover !== soloRace.nextCp) {
lastCpGateHover = soloRace.nextCp;
if (soloRace.nextCp === finishCp) {
completeLap();
if (soloRace.laps >= soloRace.totalLaps) {
soloRace.finished = true;
soloRace.phase = 'results';
} else {
soloRace.laps += 1;
soloRace.nextCp = 1;
}
} else {
soloRace.nextCp += 1;
}
mpRaceUiRefresh();
} else if (!inside && lastCpGateHover === soloRace.nextCp) {
lastCpGateHover = -1;
}
}
}
// --- 6. Position car mesh ---
carGroup.position.set(carX, carY, carZ);
carGroup.rotation.y = carAngle;
// Shadow on road surface (not tied to car Y — prevents bumping)
shadowPlane.position.set(carX, surfaceY + 0.05, carZ);
shadowPlane.rotation.y = carAngle;
// Wheel spinning removed — was spinning wrong parts
// Dust particles when off-road or hard cornering
if (!onRoad && carSpeed > 5) {
for (let d = 0; d < 2; d++) spawnDust(carX, surfaceY, carZ, carSpeed);
}
if ((steerInput !== 0 && carSpeed > 30) || lastSlipAmount > 1.2) {
spawnDust(carX - newFwdX * 2, surfaceY, carZ - newFwdZ * 2, carSpeed * 0.3);
crashShakeT = Math.max(crashShakeT, Math.min(0.08, lastSlipAmount * 0.01));
}
updateDust(dt);
// --- 7. Camera with orbit support ---
const sp = speedNorm;
const mobOff = isMobile ? 2.0 : 0;
const camDist = 5.5 + mobOff + sp * 0.8;
const camH = 2.5 + mobOff * 0.5 + sp * 0.25;
// Auto-center orbit when not dragging
if (!orbitDragging) {
orbitYaw *= 0.92; // smooth return to center
orbitPitch *= 0.92;
}
// Apply orbit: rotate camera offset around car by orbitYaw
const cosO = Math.cos(orbitYaw), sinO = Math.sin(orbitYaw);
const baseBackX = -newFwdX * camDist;
const baseBackZ = -newFwdZ * camDist;
const orbitX = baseBackX * cosO - baseBackZ * sinO;
const orbitZ = baseBackX * sinO + baseBackZ * cosO;
const idealCamPos = new THREE.Vector3(
carX + orbitX,
carY + camH + orbitPitch * camDist, // pitch tilts height
carZ + orbitZ
);
// Look at the car (orbit rotates the view around the car)
const lookDist = 2 + sp * 0.4;
const idealLook = new THREE.Vector3(
carX + newFwdX * lookDist * (1 - Math.abs(orbitYaw)),
carY + 0.8,
carZ + newFwdZ * lookDist * (1 - Math.abs(orbitYaw))
);
// Split smoothing: fast forward/back, smooth lateral, all in XZ plane
const posFast = 1 - Math.exp(-20 * dt);
const posSlow = 1 - Math.exp(-(isMobile ? 5 : 8) * dt);
// Work in XZ only to avoid Y tilt issues
const dxCam = idealCamPos.x - camera.position.x;
const dzCam = idealCamPos.z - camera.position.z;
// Project delta onto forward axis (XZ only)
const fwdDot = dxCam * newFwdX + dzCam * newFwdZ;
// Forward component (fast)
camera.position.x += newFwdX * fwdDot * posFast;
camera.position.z += newFwdZ * fwdDot * posFast;
// Lateral component = remainder (slow)
const latX = dxCam - newFwdX * fwdDot;
const latZ = dzCam - newFwdZ * fwdDot;
camera.position.x += latX * posSlow;
camera.position.z += latZ * posSlow;
// Y: fast follow, completely separate
camera.position.y += (idealCamPos.y - camera.position.y) * posFast;
// Crash camera shake
if (crashShakeT > 0) {
const sh = crashShakeT * 0.5;
camera.position.x += (Math.random() - 0.5) * sh;
camera.position.y += (Math.random() - 0.5) * sh * 0.3;
camera.position.z += (Math.random() - 0.5) * sh;
crashShakeT = Math.max(0, crashShakeT - dt * 2.5);
}
_camLook.lerp(idealLook, posFast); // must match camera position speed to prevent tilt
camera.lookAt(_camLook);
// Sky dome + moon follow camera so sky is always visible
skyMesh.position.copy(camera.position);
moonMesh.position.set(camera.position.x + 500, camera.position.y + 800, camera.position.z - 300);
// FOV: enough expansion to make 200+ km/h read as fast without going fisheye.
camera.fov = (isMobile ? 72 : 65) + sp * 7;
camera.updateProjectionMatrix();
// --- 8. Speed effects ---
// Vignette: darken edges at high speed
const vig = document.getElementById('vignette');
if (vig) vig.style.opacity = String(Math.min(0.15, sp * 0.15)); // very subtle
// Speed lines canvas
const slCanvas = document.getElementById('speed-lines');
if (slCanvas && sp > 0.4) {
if (slCanvas.width !== vw) { slCanvas.width = vw; slCanvas.height = vh; }
slCanvas.style.opacity = String(Math.min(0.85, (sp - 0.4) * 1.9));
const slCtx = slCanvas.getContext('2d');
slCtx.clearRect(0, 0, vw, vh);
slCtx.strokeStyle = 'rgba(255,255,255,0.08)';
slCtx.lineWidth = 1;
const n = Math.floor((sp - 0.4) * 42);
for (let i = 0; i < n; i++) {
const side = Math.random() < 0.5 ? 0 : 1;
const x = side ? vw * 0.85 + Math.random() * vw * 0.15 : Math.random() * vw * 0.15;
const y = vh * 0.2 + Math.random() * vh * 0.6;
const len = 30 + sp * 80;
slCtx.beginPath();
slCtx.moveTo(x, y);
slCtx.lineTo(x + (side ? 1 : -1) * len * 0.2, y + len);
slCtx.stroke();
}
} else if (slCanvas) {
slCanvas.style.opacity = '0';
}
// Speed number color
const spdEl = document.getElementById('spdv');
if (spdEl) {
if (sp > 0.8) spdEl.style.color = '#ff3d00';
else if (sp > 0.5) spdEl.style.color = '#ffbe0b';
else spdEl.style.color = '#fff';
}
// --- 9. Engine + audio ---
engineUpdate(sp);
// Tire screech removed — sounded bad
// Brake lights: brighten when braking
if (brakeLightMat) {
brakeLightMat.emissiveIntensity = goBack ? 3.0 : (goFwd ? 0.5 : 1.5);
}
// Progress bar
const progBar = document.getElementById('progress-bar');
if (progBar) progBar.style.width = (nearest.t * 100) + '%';
// --- 10. HUD ---
if (!inputFrozen) lapTime += dt;
document.getElementById('ltv').textContent = formatTime(lapTime);
document.getElementById('spdv').textContent = Math.round(carSpeed * 3.6);
// Gear indicator (from physics gear table)
document.getElementById('gearv').textContent = curGearIdx + 1;
if (activeMap === 'cluj') {
// Show nearest street name
const streetName = getClujStreetName(carX, carZ);
document.getElementById('altv').textContent = '380m';
if (streetName && streetName !== currentSection) {
currentSection = streetName;
sectionFade = 1;
sectionEl.textContent = currentSection.toUpperCase();
sectionEl.style.opacity = '1';
}
} else {
const sec = getSectionAt(nearest.t);
if (sec) {
document.getElementById('altv').textContent = sec.alt;
if (sec.name !== currentSection) {
currentSection = sec.name;
sectionFade = 1;
sectionEl.textContent = currentSection.toUpperCase();
sectionEl.style.opacity = '1';
}
}
}
if (sectionFade > 0) { sectionFade -= dt * 0.4; if (sectionFade <= 0) sectionEl.style.opacity = '0'; }
if (lapFlashAlpha > 0) { lapFlashAlpha -= dt * 0.3; flashEl.style.opacity = String(Math.max(0, lapFlashAlpha)); }
mpUpdateRemoteCars();
// --- Collision with remote players ---
// Remote positions are already interpolated by mpUpdateRemoteCars above.
// We use a simple repulsion sphere: if two cars overlap, push local car away
// and play a crash sound scaled by impact severity.
if (mpPlayers.size > 0 && !inputFrozen) {
let collided = false;
for (const [, rp] of mpPlayers) {
if (!rp.group.visible) continue;
const dx = carX - rp.group.position.x;
const dz = carZ - rp.group.position.z;
const distSq = dx * dx + dz * dz;
if (distSq < CRASH_DIST_SQ && distSq > 0.01) {
const dist = Math.sqrt(distSq);
const overlap = CRASH_DIST - dist;
const nx = dx / dist, nz = dz / dist; // repulsion normal (local car away)
// Push local car out of overlap
carX += nx * overlap * 0.6;
carZ += nz * overlap * 0.6;
// Relative closing speed: positive = approaching
const closingSpd = carSpeed - (rp.curr.s * (nx * Math.sin(rp.curr.a) + nz * Math.cos(rp.curr.a)));
const impactMag = Math.max(0, closingSpd) * (overlap / CRASH_DIST);
if (!(rp.crashCD > 0)) {
// Reduce speed by impact fraction (harder hits slow you more)
const speedLoss = Math.min(0.6, impactMag * 0.03);
carVelX *= (1 - speedLoss);
carVelZ *= (1 - speedLoss);
carSpeed = Math.hypot(carVelX, carVelZ);
// Sound: volume proportional to impact
sfxCrash(0.1 + impactMag * 0.04);
rp.crashCD = 1.2;
collided = true;
}
}
if (rp.crashCD > 0) rp.crashCD -= dt;
}
if (collided) {
// Screen flash: brief orange tint
if (flashEl && lapFlashAlpha <= 0 && !raceResetHold) {
flashEl.textContent = '';
flashEl.style.color = 'transparent';
flashEl.style.backgroundColor = 'rgba(255,100,0,0.25)';
flashEl.style.opacity = '1';
setTimeout(() => {
if (flashEl) { flashEl.style.opacity = '0'; flashEl.style.backgroundColor = ''; }
}, 250);
}
// Camera shake
crashShakeT = Math.max(crashShakeT, 0.35);
// Re-apply car position after collision displacement
carGroup.position.set(carX, carY, carZ);
shadowPlane.position.set(carX, carY - 0.25, carZ);
}
}
if (trackDebugEl && activeMap !== 'cluj') {
const nt = lastNearestTrack || nearest;
const cpTarget = soloRace.phase === 'live' ? soloRace.nextCp : localRaceNextCp;
trackDebugEl.textContent = [
`track ${(nt.t * 100).toFixed(2)}% ${Math.round(nt.progressM || 0)}m/${Math.round(trackMeta.lengthM)}m`,
`offset ${(nt.signedOffset || 0).toFixed(2)}m dist ${(nt.dist || 0).toFixed(2)}m surface ${lastSurfaceKind}`,
`ground ${lastGroundSource} roadY ${lastRoadY.toFixed(2)} groundY ${lastTerrainY.toFixed(2)} carY ${carY.toFixed(2)}`,
`speed ${Math.round(carSpeed * 3.6)}km/h grip ${lastGripBudget.toFixed(1)} slip ${lastSlipAmount.toFixed(2)}`,
`section ${currentSection || '-'} checkpoint ${cpTarget}/${Math.max(1, nordCheckpoints.length - 1)}`,
].join('\n');
}
drawMinimap();
}
function completeLap() {
const isNew = !bestLap || lapTime < bestLap;
if (isNew) {
bestLap = lapTime;
document.getElementById('btv').textContent = formatTime(bestLap);
try { localStorage.setItem('mf_nord3d_best_v2', bestLap); } catch (e) {}
flashEl.textContent = 'NEW BEST ' + formatTime(lapTime);
flashEl.style.color = '#ffbe0b';
} else {
flashEl.textContent = 'LAP ' + formatTime(lapTime);
flashEl.style.color = '#00ff41';
}
lapFlashAlpha = 1; flashEl.style.opacity = '1';
currentLap++; lapTime = 0;
}
function resetCarToStart() {
try {
if (activeMap === 'cluj') {
carX = -20; carZ = -45; carY = CAR_CLEARANCE;
carAngle = 0;
currentSection = 'Piața Unirii'; sectionFade = 1;
sectionEl.textContent = 'PIAȚA UNIRII';
sectionEl.style.opacity = '1';
} else {
const startPos = spline.getPointAt(0);
const startTan = spline.getTangentAt(0).normalize();
const startNearest = findNearestT(startPos.x, startPos.z);
carX = startPos.x; carZ = startPos.z; carY = getRoadRibbonY(startNearest) + CAR_CLEARANCE;
carAngle = Math.atan2(startTan.x, startTan.z);
currentSection = ''; sectionFade = 0;
}
carSpeed = 0; carVelX = 0; carVelZ = 0; yawRate = 0; steerAmount = 0;
lapTime = 0; prevSector = 0; lapFlashAlpha = 0;
raceResetHold = 1.2;
} catch (_) {}
}
// GAME LOOP
// =====================================================================
const STEP = 1 / 60;
let lastTime = 0, gdt = 0, loopId = null;
let _frameCount = 0, _updateCount = 0;
function gameLoop() {
if (STATE !== 'playing') {
loopId = requestAnimationFrame(gameLoop);
return;
}
_frameCount++;
try {
const now = performance.now();
const dt = Math.min(0.1, (now - lastTime) / 1000);
lastTime = now;
gdt += dt;
while (gdt > STEP) { gdt -= STEP; _updateCount++; update(STEP); }
composer.render();
if (location.search.includes('perf=1')) {
perfOverlay.style.display = 'block';
if (!sessionPerf.lastUiTs || now - sessionPerf.lastUiTs > 500) {
const elapsed = Math.max(0.001, (now - (sessionPerf.lastUiTs || now)) / 1000);
const fps = (_frameCount / Math.max(1, (now - (sessionPerf.lastUiTs || now)) / 1000)) | 0;
const inRate = (sessionPerf.netIn / elapsed) | 0;
const outRate = (sessionPerf.netOut / elapsed) | 0;
perfOverlay.textContent = `fps~${fps} in:${inRate}B/s out:${outRate}B/s msgs:${sessionPerf.msgIn}/${sessionPerf.msgOut}`;
sessionPerf.lastUiTs = now;
sessionPerf.netIn = 0;
sessionPerf.netOut = 0;
sessionPerf.msgIn = 0;
sessionPerf.msgOut = 0;
_frameCount = 0;
}
} else {
perfOverlay.style.display = 'none';
}
} catch (e) {
console.error('Game loop error:', e);
document.title = 'ERR:' + e.message;
}
loopId = requestAnimationFrame(gameLoop);
}
function transitionToRace() {
if (activeMap === 'nordschleife' && !trackReady) return;
toggleMenu(false);
STATE = 'transition';
promptEl.classList.add('hidden');
for (let r = 0; r < ROWS; r++) for (let c = 0; c < COLS; c++)
if (FILLED[r + ',' + c]) board[r][c].className = 'c f out';
setTimeout(() => {
try {
gridEl.style.display = 'none';
container.classList.add('show');
scoresEl.classList.add('show');
// Initialize car at start of track in world space
if (activeMap === 'cluj') {
buildClujScene();
// Start at Piata Unirii area
carX = -20; carZ = -45; carY = CAR_CLEARANCE;
carAngle = 0; carSpeed = 0; carVelX = 0; carVelZ = 0; yawRate = 0; steerAmount = 0; lapTime = 0;
currentSection = 'Piața Unirii'; sectionFade = 1;
sectionEl.textContent = 'PIAȚA UNIRII';
sectionEl.style.opacity = '1';
} else {
if (nordsWorldGroup) nordsWorldGroup.visible = true;
const startPos = spline.getPointAt(0);
const startTan = spline.getTangentAt(0).normalize();
const startNearest = findNearestT(startPos.x, startPos.z);
carX = startPos.x; carZ = startPos.z; carY = getRoadRibbonY(startNearest) + CAR_CLEARANCE;
carAngle = Math.atan2(startTan.x, startTan.z);
}
carSpeed = 0; carVelX = 0; carVelZ = 0; yawRate = 0; steerAmount = 0;
lapTime = 0; prevSector = 0;
currentSection = ''; sectionFade = 0; lapFlashAlpha = 0;
soloRace = { phase: 'tourist', countdown: 0, nextCp: 1, laps: 1, totalLaps: 1, finished: false };
// Position camera behind car
const camBack = 5.5;
camera.position.set(carX, carY + 2.5, carZ - camBack);
_camLook.set(carX, carY + 1.5, carZ);
camera.lookAt(_camLook);
STATE = 'playing';
engineStart();
lastTime = performance.now(); gdt = 0;
if (loopId) cancelAnimationFrame(loopId);
loopId = requestAnimationFrame(gameLoop);
try { mpEnsureRaceJoin(); } catch (_) {}
console.log('Transition complete, gameLoop requested, loopId:', loopId);
} catch(e) {
console.error('Transition error:', e);
document.title = 'TRANS_ERR:' + e.message;
}
}, 900);
}
// =====================================================================
// INPUT
// =====================================================================
if (menuResumeBtn) menuResumeBtn.addEventListener('click', () => toggleMenu(false));
if (menuResetBtn) menuResetBtn.addEventListener('click', () => { resetCarToStart(); toggleMenu(false); });
if (menuModeBtn) menuModeBtn.addEventListener('click', () => setMenuInfoMode());
if (menuGuideBtn) menuGuideBtn.addEventListener('click', () => setMenuInfoGuide());
function keyAction(k) {
if (k === 'ArrowUp' || k === 'w' || k === 'W') return 'up';
if (k === 'ArrowDown' || k === 's' || k === 'S') return 'down';
if (k === 'ArrowLeft' || k === 'a' || k === 'A') return 'left';
if (k === 'ArrowRight' || k === 'd' || k === 'D') return 'right';
return null;
}
document.addEventListener('keydown', e => {
if (STATE === 'intro') {
// Cheat code detection: type "cluj" to unlock secret map
if (e.key.length === 1) {
cheatBuffer += e.key.toLowerCase();
if (cheatBuffer.length > 10) cheatBuffer = cheatBuffer.slice(-10);
if (cheatBuffer.endsWith('cluj')) {
activeMap = 'cluj';
promptEl.textContent = 'CLUJ-NAPOCA — Press any key';
promptEl.style.color = '#ffbe0b';
cheatBuffer = '';
e.preventDefault();
return;
}
}
// Any non-letter key or after cheat: start the game
if (e.key.length > 1 || e.key === ' ') {
if (activeMap === 'nordschleife' && !trackReady) {
promptEl.textContent = trackLoadError ? 'Track load failed — refresh' : 'Loading track…';
e.preventDefault();
return;
}
transitionToRace(); e.preventDefault(); return;
}
return;
}
if (STATE !== 'playing') return;
if ((e.key === 'm' || e.key === 'M') && !e.repeat) {
e.preventDefault();
toggleMenu();
return;
}
if (menuOpen) {
if (e.key === 'Escape') { e.preventDefault(); toggleMenu(false); }
return;
}
if ((e.key === 't' || e.key === 'T') && !e.repeat && activeMap === 'nordschleife') {
e.preventDefault();
try {
if (mpSocket && mpSocket.readyState === 1) {
mpSend({ t: 'race_request', map: activeMap });
} else if (soloRace.phase === 'tourist' || soloRace.phase === 'results') {
soloRace = { phase: 'countdown', countdown: 3, nextCp: 1, laps: 1, totalLaps: 1, finished: false };
chaosScore = 0;
lastCpGateHover = -1;
mpRaceUiRefresh();
}
} catch (_) {}
return;
}
const a = keyAction(e.key);
if (a) { e.preventDefault(); keysHeld.add(a); }
});
document.addEventListener('keyup', e => { const a = keyAction(e.key); if (a) keysHeld.delete(a); });
window.addEventListener('blur', () => keysHeld.clear());
// Touch
const activeTouches = {};
function updateTouch() {
touchLeft = false; touchRight = false; touchAccel = false;
touchSteerAmount = 0;
const ids = Object.keys(activeTouches);
if (ids.length > 0) {
touchAccel = true;
for (const id of ids) {
const tx = activeTouches[id];
// Proportional steering: center = 0, edges = ±1
const center = vw * 0.5;
const range = vw * 0.4; // 40% from center to full steer
const steer = -(tx - center) / range; // negative = left side = steer left
touchSteerAmount = Math.max(-1, Math.min(1, steer));
if (touchSteerAmount < -0.1) touchLeft = true;
else if (touchSteerAmount > 0.1) touchRight = true;
}
}
}
document.addEventListener('touchstart', e => {
if (STATE === 'intro') {
if (activeMap === 'nordschleife' && !trackReady) {
promptEl.textContent = trackLoadError ? 'Track load failed — refresh' : 'Loading track…';
e.preventDefault();
return;
}
transitionToRace(); e.preventDefault(); return;
}
if (STATE === 'playing') {
e.preventDefault();
for (const t of e.changedTouches) activeTouches[t.identifier] = t.clientX;
updateTouch();
}
}, { passive: false });
document.addEventListener('touchmove', e => {
if (STATE !== 'playing') return;
e.preventDefault();
for (const t of e.changedTouches) activeTouches[t.identifier] = t.clientX;
updateTouch();
}, { passive: false });
document.addEventListener('touchend', e => {
for (const t of e.changedTouches) delete activeTouches[t.identifier];
updateTouch();
});
document.addEventListener('touchcancel', e => {
for (const t of e.changedTouches) delete activeTouches[t.identifier];
updateTouch();
});
// Orbit camera: right-click drag or shift+left-click
document.addEventListener('mousedown', e => {
if (STATE !== 'playing') return;
if (e.button === 2 || (e.button === 0 && e.shiftKey)) {
orbitDragging = true;
orbitLastX = e.clientX;
orbitLastY = e.clientY;
e.preventDefault();
}
});
document.addEventListener('mousemove', e => {
if (!orbitDragging) return;
const dx = e.clientX - orbitLastX;
const dy = e.clientY - orbitLastY;
orbitYaw += dx * 0.005;
orbitPitch = Math.max(-0.5, Math.min(0.5, orbitPitch - dy * 0.003));
orbitLastX = e.clientX;
orbitLastY = e.clientY;
});
document.addEventListener('mouseup', e => { if (e.button === 2 || e.button === 0) orbitDragging = false; });
document.addEventListener('contextmenu', e => e.preventDefault()); // prevent right-click menu
loadNordschleifeTrack()
.then(() => {
if (STATE === 'intro' && activeMap === 'nordschleife') {
promptEl.textContent = 'Nordschleife 3D — Press any key';
}
})
.catch((err) => {
trackLoadError = err && err.message ? err.message : String(err);
console.error('[nord] track load', err);
if (STATE === 'intro' && activeMap === 'nordschleife') {
promptEl.textContent = 'Track load failed — refresh page';
}
});
</script>
</body>
</html>
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