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<!DOCTYPE html>
<html lang="en">
<head>
<title>Aarons-ThreeJS-Penteconter-Warships-Coaster-Trucks-Dig-Oselberg-Viking-Tides-Sim</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { overflow: hidden; background: #000; font-family: 'Segoe UI', system-ui, sans-serif; }
canvas { display: block; }
#overlay {
position: fixed; top: 0; left: 0; width: 100%; height: 100%;
display: flex; flex-direction: column; align-items: center; justify-content: center;
background: radial-gradient(ellipse at center, #0a1628 0%, #000 100%);
z-index: 200; transition: opacity 1.8s ease; gap: 12px;
}
#overlay.hidden { opacity: 0; pointer-events: none; }
#overlay h1 { color: #64b4ff; font-size: 24px; font-weight: 300; letter-spacing: 8px; text-transform: uppercase; animation: pulse 2s ease-in-out infinite; }
#overlay p { color: rgba(100,180,255,0.4); font-size: 12px; letter-spacing: 3px; }
#overlay .runes { color: rgba(212,184,112,0.6); font-size: 18px; letter-spacing: 8px; }
@keyframes pulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }
#hud {
position: fixed; top: 14px; left: 50%; transform: translateX(-50%);
color: rgba(255,255,255,0.7); font-size: 12px; text-align: center;
pointer-events: none; text-shadow: 0 2px 12px rgba(0,0,0,0.8);
letter-spacing: 2px; z-index: 100;
}
#hud .speed { font-size: 22px; color: #88ddff; font-weight: 600; }
#hud .section { font-size: 10px; color: rgba(255,200,100,0.7); margin-top: 2px; }
#hud .clock { font-size: 11px; color: rgba(180,220,255,0.75); margin-top: 2px; }
#ui {
position: fixed; bottom: 10px; left: 50%; transform: translateX(-50%);
z-index: 100; display: flex; gap: 8px; align-items: center; flex-wrap: nowrap; justify-content: flex-start;
width: calc(100vw - 22px); max-width: none; min-height: 48px;
background: rgba(0,8,24,0.78); backdrop-filter: blur(22px) saturate(1.25);
padding: 8px 14px; border-radius: 28px;
border: 1px solid rgba(100,180,255,0.16);
box-shadow: 0 12px 40px rgba(0,0,0,0.35), inset 0 1px rgba(255,255,255,0.03);
overflow-x: auto; overflow-y: hidden; scrollbar-width: thin;
}
#ui::-webkit-scrollbar { height: 4px; }
#ui::-webkit-scrollbar-thumb { background: rgba(100,180,255,0.28); border-radius: 8px; }
#ui > * { flex: 0 0 auto; }
@media (max-width: 760px) {
#ui { width: calc(100vw - 10px); bottom: 5px; border-radius: 22px; padding: 7px 10px; }
#stats, #vikingPanel, #compassWrap, #minimapWrap { display: none; }
}
#ui button {
background: rgba(100,180,255,0.06); color: rgba(255,255,255,0.7);
border: 1px solid rgba(100,180,255,0.15);
padding: 6px 13px; border-radius: 18px; cursor: pointer;
font-size: 11px; font-family: inherit; letter-spacing: 1.5px; transition: all 0.3s;
}
#ui button:hover { background: rgba(100,180,255,0.18); color: #fff; }
#ui button.active { background: rgba(100,180,255,0.3); border-color: rgba(100,180,255,0.45); color: #fff; }
#ui button.sail-btn { background: rgba(212,184,112,0.14); border-color: rgba(212,184,112,0.4); color: #d4b870; }
#ui button.sail-btn:hover { background: rgba(212,184,112,0.3); color: #ffe8b0; }
#ui button.sail-btn.active { background: rgba(212,184,112,0.45); color: #fff; }
#ui button.lookout-btn { background: rgba(255,180,60,0.15); border-color: rgba(255,180,60,0.3); color: #ffd080; }
#ui button.lookout-btn:hover { background: rgba(255,180,60,0.3); color: #ffe0a0; }
#ui button.lookout-btn.active { background: rgba(255,180,60,0.4); color: #fff; }
#ui button.rideagain-btn { background: rgba(40,200,100,0.2); border-color: rgba(40,200,100,0.4); color: #88ffbb; }
#ui button.rideagain-btn:hover { background: rgba(40,200,100,0.35); color: #aaffcc; }
#ui button.rec-btn { background: rgba(255,60,80,0.15); border-color: rgba(255,60,80,0.35); color: #ff9aa5; }
#ui button.rec-btn:hover { background: rgba(255,60,80,0.3); color: #ffc0c8; }
#ui button.rec-btn.recording { background: rgba(255,40,60,0.55); color: #fff; animation: recblink 1s ease-in-out infinite; }
@keyframes recblink { 0%,100% { border-color: rgba(255,60,80,0.9); } 50% { border-color: rgba(255,60,80,0.2); } }
#ui button.music-btn { background: rgba(160,100,255,0.14); border-color: rgba(160,100,255,0.3); color: #cbb0ff; }
#ui button.music-btn:hover { background: rgba(160,100,255,0.3); color: #e4d6ff; }
#ui button:disabled { opacity: 0.35; cursor: not-allowed; }
#ui .sep { width: 1px; height: 22px; background: rgba(255,255,255,0.08); }
#ui label { color: rgba(255,255,255,0.48); font-size: 9px; display: flex; align-items: center; gap: 5px; letter-spacing: .8px; white-space: nowrap; }
#ui input[type=range] { width: 70px; accent-color: #64b4ff; height: 3px; cursor: ew-resize; }
#stats {
position: fixed; top: 14px; right: 14px; z-index: 100;
background: rgba(0,8,24,0.7); backdrop-filter: blur(14px);
border: 1px solid rgba(100,180,255,0.12); border-radius: 12px;
padding: 8px 12px; color: rgba(160,210,255,0.85);
font-size: 10px; letter-spacing: 1.2px; line-height: 1.7;
font-variant-numeric: tabular-nums; min-width: 130px;
}
#stats .fps { font-size: 16px; color: #88ffcc; font-weight: 600; }
#stats .backend { color: rgba(255,200,100,0.8); }
/* ═══ Viking navigation panels ═══ */
#vikingPanel {
position: fixed; top: 14px; left: 14px; z-index: 100;
background: linear-gradient(135deg, rgba(13,31,46,0.78), rgba(5,10,20,0.85));
backdrop-filter: blur(14px);
border: 1px solid rgba(212,184,112,0.3); border-radius: 6px;
padding: 10px 14px; color: #ede0c8; font-size: 11px; line-height: 1.75;
min-width: 190px; font-variant-numeric: tabular-nums;
}
#vikingPanel h3 { color: #d4b870; font-size: 10px; letter-spacing: 3px; text-align: center; border-bottom: 1px solid rgba(212,184,112,0.25); padding-bottom: 4px; margin-bottom: 6px; text-shadow: 0 0 8px rgba(212,184,112,0.3); }
#vikingPanel .lbl { color: #8a7340; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; }
#vikingPanel .val { float: right; color: #ede0c8; font-weight: 600; }
#vikingPanel .mode-sail { color: #88ddff; } #vikingPanel .mode-land { color: #ffaa44; } #vikingPanel .mode-port { color: #88ff88; }
#compassWrap {
position: fixed; top: 168px; right: 14px; z-index: 100;
width: 110px; height: 110px; border-radius: 50%;
background: radial-gradient(circle, rgba(13,31,46,0.9) 0%, rgba(5,10,20,0.7) 100%);
border: 1px solid rgba(212,184,112,0.3);
box-shadow: 0 0 24px rgba(212,184,112,0.12), inset 0 0 18px rgba(0,0,0,0.5);
}
#minimapWrap {
position: fixed; bottom: 72px; right: 14px; z-index: 100;
background: rgba(5,10,20,0.85); border: 1px solid rgba(212,184,112,0.3);
border-radius: 6px; padding: 6px;
}
#minimapWrap .mm-title { color: #d4b870; font-size: 9px; letter-spacing: 3px; text-align: center; margin-bottom: 3px; }
#minimapCanvas { width: 168px; height: 168px; image-rendering: pixelated; border-radius: 3px; display: block; }
/* ═══ Dig Isle panel ═══ */
#digPanel {
position: fixed; bottom: 72px; left: 14px; z-index: 100;
background: rgba(7,8,22,0.88); backdrop-filter: blur(14px);
border: 1px solid rgba(124,255,178,0.35); border-radius: 10px;
padding: 9px 12px; color: rgba(255,255,255,0.92);
font-size: 10.5px; line-height: 1.6; min-width: 235px; max-width: 280px;
}
#digPanel h3 { color: #7CFFB2; font-size: 10px; letter-spacing: 2.5px; text-align: center; border-bottom: 1px solid rgba(124,255,178,0.25); padding-bottom: 4px; margin-bottom: 6px; }
#digPanel .drow { display: flex; gap: 5px; align-items: center; margin: 4px 0; flex-wrap: wrap; }
#digPanel select, #digPanel button {
background: rgba(124,255,178,0.08); color: rgba(255,255,255,0.85);
border: 1px solid rgba(124,255,178,0.3); border-radius: 8px;
padding: 3px 8px; font-size: 10px; font-weight: 700; cursor: pointer; font-family: inherit;
}
#digPanel button:hover { background: rgba(124,255,178,0.22); }
#digStatus { color: rgba(255,255,255,0.7); font-size: 9.5px; margin-top: 4px; }
#digStatus .g { color: #7CFFB2; font-weight: 800; } #digStatus .b { color: #76B7FF; font-weight: 800; } #digStatus .w { color: #FF6B6B; font-weight: 800; }
#digPanel .keys { font-size: 8.5px; color: rgba(180,220,255,0.55); letter-spacing: .3px; margin-top: 3px; }
@media (max-width: 760px) { #digPanel { display: none; } }
/* ═══ Truck Jump Track panel ═══ */
#truckPanel {
position: fixed; top: 224px; left: 14px; z-index: 100;
background: linear-gradient(135deg, rgba(30,12,4,0.82), rgba(10,4,2,0.88));
backdrop-filter: blur(14px);
border: 1px solid rgba(255,106,26,0.4); border-radius: 8px;
padding: 9px 13px; color: #ffd9c0; font-size: 11px; line-height: 1.7;
min-width: 190px; font-variant-numeric: tabular-nums;
}
#truckPanel h3 { color: #ff9a52; font-size: 10px; letter-spacing: 2.5px; text-align: center; border-bottom: 1px solid rgba(255,106,26,0.3); padding-bottom: 4px; margin-bottom: 6px; }
#truckPanel .mph { font-size: 20px; color: #ffb347; font-weight: 800; text-align: center; text-shadow: 0 0 12px rgba(255,106,26,0.5); }
#truckPanel .lbl { color: #a05a30; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; }
#truckPanel .val { float: right; color: #ffd9c0; font-weight: 700; }
#nitroBar { height: 8px; border-radius: 4px; background: #1a0a04; border: 1px solid rgba(0,229,255,0.4); overflow: hidden; margin: 4px 0 6px; }
#nitroBar i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, #00e5ff, #7dffff); box-shadow: 0 0 8px #00e5ff; transition: width .1s; }
#trkCombo {
position: fixed; top: 34%; left: 50%; transform: translate(-50%,-50%) scale(1);
color: #ffb347; font-size: 26px; font-weight: 900; letter-spacing: 3px;
pointer-events: none; z-index: 115; opacity: 0; text-align: center;
text-shadow: 0 0 24px rgba(255,106,26,0.9), 0 3px 10px #000;
transition: opacity .3s, transform .3s;
}
#trkCombo.pop { opacity: 1; transform: translate(-50%,-50%) scale(1.15); }
@media (max-width: 760px) { #truckPanel { display: none; } }
#songInfo {
position: fixed; bottom: 72px; left: 50%; transform: translateX(-50%);
color: rgba(200,180,255,0.75); font-size: 10px; letter-spacing: 2px;
z-index: 100; pointer-events: none; text-shadow: 0 1px 8px rgba(0,0,0,0.8);
display: none;
}
#lookoutMsg {
position: fixed; top: 50%; left: 50%; transform: translate(-50%,-50%);
color: #fff; font-size: 18px; letter-spacing: 4px; text-align: center;
pointer-events: none; z-index: 100; opacity: 0; transition: opacity 0.8s;
text-shadow: 0 2px 20px rgba(0,100,255,0.5);
}
#lookoutMsg.show { opacity: 1; }
#lookoutMsg .sub { font-size: 11px; color: rgba(180,220,255,0.6); margin-top: 6px; letter-spacing: 2px; }
#switchIndicator {
position: fixed; top: 62px; left: 50%; transform: translateX(-50%);
color: rgba(255,200,80,0.9); font-size: 12px; letter-spacing: 3px;
pointer-events: none; z-index: 100; opacity: 0; transition: opacity 0.5s;
text-shadow: 0 2px 12px rgba(255,150,0,0.4);
}
#switchIndicator.show { opacity: 1; }
#shipNotify {
position: fixed; top: 40%; left: 50%; transform: translate(-50%,-50%);
color: #ede0c8; font-size: 22px; letter-spacing: 5px; font-weight: 700;
pointer-events: none; z-index: 110; opacity: 0; transition: opacity 0.4s;
text-shadow: 0 0 30px rgba(212,184,112,0.8), 0 2px 10px #000;
}
#shipNotify.show { opacity: 1; }
</style>
</head>
<body>
<div id="overlay">
<div class="runes">ᚠ ᚢ ᚦ ᚨ ᚱ ᚲ</div>
<h1>Initializing WebGPU</h1>
<p>Glass Coaster v4 — Viking Tides · TSL Gerstner Sea · Sail the Lagoon</p>
</div>
<div id="hud">
<div class="speed" id="speedDisplay">0 km/h</div>
<div id="altDisplay">ALT 0m</div>
<div class="clock" id="clockDisplay">☀ 06:00</div>
<div class="section" id="sectionDisplay"></div>
</div>
<div id="stats">
<div class="backend" id="stBackend">—</div>
<div><span class="fps" id="stFps">0</span> FPS</div>
<div id="stMs">0.0 ms</div>
<div id="stCalls">calls 0</div>
<div id="stTris">tris 0</div>
</div>
<div id="vikingPanel">
<h3>⚔ SKÍÐBLAÐNIR ⚔</h3>
<div><span class="lbl">Speed</span><span class="val" id="vkSpeed">0 kn</span></div>
<div><span class="lbl">Heading</span><span class="val" id="vkHeading">N</span></div>
<div><span class="lbl">Wind</span><span class="val" id="vkWind">—</span></div>
<div><span class="lbl">Crew</span><span class="val" id="vkCrew">20/20</span></div>
<div><span class="lbl">Mode</span><span class="val mode-sail" id="vkMode">SAILING</span></div>
<div style="font-size:9px;color:#8a7340;margin-top:5px;letter-spacing:1px">
WASD sail · SHIFT row · P portage<br>SPACE shanty · SAIL btn = helm cam
</div>
</div>
<div id="compassWrap">
<svg viewBox="-60 -60 120 120" style="width:100%;height:100%">
<circle cx="0" cy="0" r="55" fill="none" stroke="#8a7340" stroke-width="0.5"/>
<circle cx="0" cy="0" r="48" fill="none" stroke="#d4b870" stroke-width="0.3"/>
<g id="compassRose">
<text x="0" y="-42" text-anchor="middle" fill="#d4b870" font-size="10" font-weight="900">N</text>
<text x="42" y="4" text-anchor="middle" fill="#8a7340" font-size="8">E</text>
<text x="0" y="48" text-anchor="middle" fill="#8a7340" font-size="8">S</text>
<text x="-42" y="4" text-anchor="middle" fill="#8a7340" font-size="8">W</text>
</g>
<g id="compassNeedle">
<polygon points="0,-30 4,5 0,10 -4,5" fill="#8b1a1a"/>
<polygon points="0,30 4,-5 0,-10 -4,-5" fill="#e8dcc4"/>
<circle cx="0" cy="0" r="3" fill="#d4b870"/>
</g>
</svg>
</div>
<div id="minimapWrap">
<div class="mm-title">⛵ KNOWN WORLD ⛵</div>
<canvas id="minimapCanvas" width="168" height="168"></canvas>
</div>
<div id="digPanel">
<h3>⛏️🫧 DIG ISLE — SKY ARENA</h3>
<div class="drow">
<span>🗺️</span>
<select id="digLevelSel">
<option value="10">Lv 10 (authored)</option>
<option value="15">Lv 15 (authored)</option>
<option value="1">Lv 1</option>
<option value="5">Lv 5</option>
<option value="20">Lv 20</option>
</select>
<button id="digStart">▶ Start</button>
<button id="digReset">↺</button>
<button id="digSelf">🤖 Self: ON</button>
</div>
<div id="digStatus"></div>
<div class="keys">In DIG cam — P1: WASD move · F pump · E crack | P2: arrows · Shift pump · Enter crack</div>
</div>
<div id="truckPanel">
<h3>🚚🔥 TRUCK JUMP TRACK</h3>
<div class="mph" id="trkMph">0 MPH</div>
<div class="lbl">NITRO <span style="float:right;color:#00e5ff" id="trkNitroPct">100%</span></div>
<div id="nitroBar"><i id="trkNitroFill"></i></div>
<div><span class="lbl">Score</span><span class="val" id="trkScore">0</span></div>
<div><span class="lbl">Lap</span><span class="val" id="trkLap">1</span></div>
<div><span class="lbl">Best Air</span><span class="val" id="trkAir">0.0s</span></div>
<div><span class="lbl">Driver</span><span class="val" id="trkDriver">🤖 AUTO</span></div>
<div style="font-size:8.5px;color:#a05a30;margin-top:4px;letter-spacing:.5px">COURSE parallels the coaster · 4 AI rivals — W/S gas·brake · A/D steer · SHIFT nitro · SPACE drift</div>
</div>
<div id="trkCombo"></div>
<div id="songInfo"></div>
<div id="lookoutMsg"><div>LOOKOUT PLATFORM</div><div class="sub">Enjoy the view — press RIDE AGAIN when ready</div></div>
<div id="switchIndicator">⚡ SWITCH AHEAD — DIVERTING TO LOOKOUT ⚡</div>
<div id="shipNotify"></div>
<div id="ui">
<button id="btnRide" class="active">RIDE</button>
<button id="btnChase">CHASE</button>
<button id="btnOrbit">ORBIT</button>
<button id="btnSail" class="sail-btn">⚔ SAIL</button>
<button id="btnDig" style="background:rgba(124,255,178,0.12);border-color:rgba(124,255,178,0.4);color:#7CFFB2">⛏️ DIG</button>
<button id="btnTruck" style="background:rgba(255,106,26,0.12);border-color:rgba(255,106,26,0.45);color:#ff9a52">🚚 TRUCK</button>
<div class="sep"></div>
<button id="btnLookout" class="lookout-btn">LOOKOUT</button>
<button id="btnRideAgain" class="rideagain-btn" style="display:none">RIDE AGAIN</button>
<div class="sep"></div>
<button id="btnMp3" class="music-btn">🎵 MP3</button>
<button id="btnPlay" class="music-btn" disabled>▶</button>
<button id="btnRec" class="rec-btn">🎥 MP4</button>
<div class="sep"></div>
<label>SPD <input type="range" id="spdR" min="1" max="15" value="5"></label>
<label>WAVE <input type="range" id="waveR" min="10" max="250" value="100"></label>
<label>WIND <input type="range" id="windR" min="0" max="200" value="100"></label>
<label>CLEAR <input type="range" id="clearR" min="10" max="100" value="72"></label>
<label>SHORE <input type="range" id="shoreR" min="10" max="100" value="68"></label>
<label>LAND <input type="range" id="landR" min="0" max="200" value="100"></label>
<label>PARK <input type="range" id="parkR" min="0" max="100" value="88"></label>
<label>BIRDS <input type="range" id="birdR" min="0" max="100" value="82"></label>
<label>SKY <input type="range" id="skyR" min="0" max="100" value="88"></label>
<label>CHROME <input type="range" id="chromeR" min="0" max="100" value="84"></label>
</div>
<input type="file" id="mp3Input" accept="audio/*" style="display:none">
<audio id="songAudio" crossorigin="anonymous"></audio>
<script type="importmap">
{
"imports": {
"three": "https://cdn.jsdelivr.net/npm/three@0.184.0/build/three.webgpu.js",
"three/webgpu": "https://cdn.jsdelivr.net/npm/three@0.184.0/build/three.webgpu.js",
"three/tsl": "https://cdn.jsdelivr.net/npm/three@0.184.0/build/three.tsl.js",
"three/addons/": "https://cdn.jsdelivr.net/npm/three@0.184.0/examples/jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three/webgpu';
import {
positionLocal, normalLocal, time, sin, cos, mix, vec2, vec3, color, float,
mul, add, normalize, dot, pow, clamp, uniform, smoothstep, transformNormalToView,
texture, uv, fract, step, positionView, normalView
} from 'three/tsl';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
// ══════════════════════════════════════
// RENDERER
// ══════════════════════════════════════
const renderer = new THREE.WebGPURenderer({ antialias: true });
await renderer.init();
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 1.5));
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 0.9;
document.body.appendChild(renderer.domElement);
const isWebGPU = !!renderer.backend?.isWebGPUBackend;
document.getElementById('stBackend').textContent = isWebGPU ? '⚡ WebGPU' : 'WebGL2 Fallback';
setTimeout(() => document.getElementById('overlay').classList.add('hidden'), 800);
const scene = new THREE.Scene();
scene.fog = new THREE.FogExp2(0x6b8294, 0.00040);
// ══════════════════════════════════════
// CAMERAS
// ══════════════════════════════════════
const aspect = window.innerWidth / window.innerHeight;
const rideCamera = new THREE.PerspectiveCamera(80, aspect, 0.1, 6000);
const chaseCamera = new THREE.PerspectiveCamera(60, aspect, 0.1, 6000);
const orbitCamera = new THREE.PerspectiveCamera(45, aspect, 0.1, 6000);
const sailCamera = new THREE.PerspectiveCamera(66, aspect, 0.1, 6000);
const digCamera = new THREE.PerspectiveCamera(55, aspect, 0.1, 6000);
const truckCamera = new THREE.PerspectiveCamera(68, aspect, 0.1, 6000);
orbitCamera.position.set(350, 180, 550);
let activeCamera = rideCamera;
const controls = new OrbitControls(orbitCamera, renderer.domElement);
controls.enableDamping = true; controls.dampingFactor = 0.05;
controls.target.set(0, 25, 0);
controls.maxPolarAngle = Math.PI / 2.01;
controls.minDistance = 40; controls.maxDistance = 1800; controls.enabled = false;
// ══════════════════════════════════════
// DAY/NIGHT LIGHT RIG
// ══════════════════════════════════════
const DAY_LENGTH = 120;
const ambient = new THREE.AmbientLight(0x6688aa, 0.6);
scene.add(ambient);
const sun = new THREE.DirectionalLight(0xffeebb, 3.2);
scene.add(sun);
const moon = new THREE.DirectionalLight(0x8899ff, 0.0);
scene.add(moon);
const fill = new THREE.DirectionalLight(0x88aadd, 0.8);
fill.position.set(-180, 120, -120); scene.add(fill);
const parkLights = [];
[0xff4466, 0x44ff88, 0x4488ff, 0xffaa22].forEach((c, i) => {
const p = new THREE.PointLight(c, 4, 220);
const a = (i / 4) * Math.PI * 2;
p.position.set(Math.cos(a)*200, 14+i*8, Math.sin(a)*200);
scene.add(p); parkLights.push(p);
});
// ══════════════════════════════════════
// TSL SKY — dawn-warm Viking palette folded into day/night gradient
// ══════════════════════════════════════
const dayU = uniform(1.0);
const duskU = uniform(0.0);
const skyMat = new THREE.MeshBasicNodeMaterial({ side: THREE.BackSide });
skyMat.fog = false;
{
const h = clamp(normalize(positionLocal).y, float(-0.05), float(1.0));
const dayGrad = mix(color(0xcfe8f8), color(0x2f7fd0), clamp(h, 0, 1));
const nightGrad = mix(color(0x0a1830), color(0x020409), clamp(h, 0, 1));
const horizon = pow(clamp(h.oneMinus(),0,1),float(3.2));
const duskGlow = color(0xd4904a).mul(duskU).mul(horizon); // viking dawn amber
const duskRose = color(0xb94f88).mul(duskU).mul(pow(clamp(h.oneMinus(),0,1),float(1.65))).mul(.38);
const dawnBlue = color(0x4a6080).mul(duskU).mul(h.mul(h.oneMinus())).mul(.28);
skyMat.colorNode = mix(nightGrad,dayGrad,dayU).add(duskGlow).add(duskRose).add(dawnBlue);
}
scene.add(new THREE.Mesh(new THREE.SphereGeometry(2400, 32, 16), skyMat));
// Stars
const starGeo = new THREE.BufferGeometry();
{
const n = 1400, arr = new Float32Array(n*3);
for (let i = 0; i < n; i++) {
const u = Math.random()*Math.PI*2, v = Math.acos(Math.random()*0.95);
const r = 2300;
arr[i*3] = Math.sin(v)*Math.cos(u)*r;
arr[i*3+1] = Math.cos(v)*r*0.9 + 60;
arr[i*3+2] = Math.sin(v)*Math.sin(u)*r;
}
starGeo.setAttribute('position', new THREE.BufferAttribute(arr, 3));
}
const starMat = new THREE.PointsMaterial({ color: 0xcfe0ff, size: 2.4, sizeAttenuation: false, transparent: true, opacity: 0, depthWrite: false });
starMat.fog = false;
const stars = new THREE.Points(starGeo, starMat);
scene.add(stars);
const brightStarGeo = new THREE.BufferGeometry();
{
const n = 180, arr = new Float32Array(n * 3);
for (let i = 0; i < n; i++) {
const u = Math.random() * Math.PI * 2, v = Math.acos(Math.random() * 0.92), r = 2280;
arr[i*3] = Math.sin(v)*Math.cos(u)*r;
arr[i*3+1] = Math.cos(v)*r*0.92 + 80;
arr[i*3+2] = Math.sin(v)*Math.sin(u)*r;
}
brightStarGeo.setAttribute('position', new THREE.BufferAttribute(arr, 3));
}
const brightStarMat = new THREE.PointsMaterial({ color: 0xffffff, size: 4.2, sizeAttenuation: false, transparent: true, opacity: 0, depthWrite: false });
brightStarMat.fog = false;
const brightStars = new THREE.Points(brightStarGeo, brightStarMat); scene.add(brightStars);
function domePoint(az, el, r = 2240) {
const ce = Math.cos(el);
return new THREE.Vector3(Math.cos(az)*ce*r, Math.sin(el)*r + 80, Math.sin(az)*ce*r);
}
const constellationVerts = [];
const constellationDefs = [
[[.10,.64],[.15,.69],[.20,.66],[.26,.72],[.31,.67]],
[[1.05,.55],[1.12,.61],[1.18,.58],[1.25,.65],[1.34,.60],[1.42,.68]],
[[2.10,.72],[2.18,.66],[2.26,.70],[2.34,.62],[2.43,.66]],
[[3.05,.56],[3.14,.62],[3.23,.58],[3.31,.67],[3.42,.63]],
[[4.12,.70],[4.20,.76],[4.29,.69],[4.38,.73],[4.49,.65]],
[[5.10,.60],[5.18,.67],[5.27,.63],[5.36,.70],[5.46,.66]],
];
for (const chain of constellationDefs) {
for (let i = 0; i < chain.length - 1; i++) {
constellationVerts.push(...domePoint(chain[i][0],chain[i][1]).toArray(), ...domePoint(chain[i+1][0],chain[i+1][1]).toArray());
}
}
const constellationGeo = new THREE.BufferGeometry();
constellationGeo.setAttribute('position', new THREE.Float32BufferAttribute(constellationVerts, 3));
const constellationMat = new THREE.LineBasicMaterial({ color: 0x7199d8, transparent: true, opacity: 0, depthWrite: false, blending: THREE.AdditiveBlending });
constellationMat.fog = false;
const constellations = new THREE.LineSegments(constellationGeo, constellationMat); scene.add(constellations);
const satelliteCount = 9;
const satelliteGeo = new THREE.BufferGeometry();
satelliteGeo.setAttribute('position', new THREE.BufferAttribute(new Float32Array(satelliteCount*3), 3));
const satelliteMat = new THREE.PointsMaterial({ color: 0xffe6aa, size: 3.2, sizeAttenuation: false, transparent: true, opacity: 0, depthWrite: false });
satelliteMat.fog = false;
const satellites = new THREE.Points(satelliteGeo, satelliteMat); scene.add(satellites);
const satelliteData = Array.from({length:satelliteCount}, (_,i) => ({
radius: 1900 + i*28, speed: 0.018 + i*0.0027, phase: i*0.77, tilt: 0.28 + (i%3)*0.09
}));
const shootCount = 3;
const shootingGeo = new THREE.BufferGeometry();
shootingGeo.setAttribute('position', new THREE.BufferAttribute(new Float32Array(shootCount*2*3), 3));
const shootingMat = new THREE.LineBasicMaterial({ color: 0xd7ecff, transparent: true, opacity: 0, depthWrite: false, blending: THREE.AdditiveBlending });
shootingMat.fog = false;
const shootingStars = new THREE.LineSegments(shootingGeo, shootingMat); scene.add(shootingStars);
const shootingData = Array.from({length:shootCount}, (_,i) => ({ phase: i*4.7, az: i*2.1+0.5, el: .42+i*.09 }));
let skyFx = 0.88;
const sunDisc = new THREE.Mesh(new THREE.SphereGeometry(55, 16, 12), new THREE.MeshBasicMaterial({ color: 0xfff2cc }));
sunDisc.material.fog = false;
const moonDisc = new THREE.Mesh(new THREE.SphereGeometry(38, 16, 12), new THREE.MeshBasicMaterial({ color: 0xd8e2ff }));
moonDisc.material.fog = false;
scene.add(sunDisc, moonDisc);
const skyCanvas = document.createElement('canvas');
skyCanvas.width = 512; skyCanvas.height = 256;
const skyCtx = skyCanvas.getContext('2d');
const grad = skyCtx.createLinearGradient(0, 0, 0, 256);
[[0,'#0a2a55'],[0.35,'#1166aa'],[0.6,'#3399cc'],[0.85,'#a8cde6'],[1,'#ddeeff']].forEach(([s,c]) => grad.addColorStop(s,c));
skyCtx.fillStyle = grad; skyCtx.fillRect(0,0,512,256);
const skyTex = new THREE.CanvasTexture(skyCanvas);
const pmrem = new THREE.PMREMGenerator(renderer);
const envScene = new THREE.Scene();
envScene.add(new THREE.Mesh(new THREE.SphereGeometry(100,16,8), new THREE.MeshBasicMaterial({ map: skyTex, side: THREE.BackSide })));
scene.environment = pmrem.fromScene(envScene, 0, 0.1, 250).texture;
// ══════════════════════════════════════
// HELPERS
// ══════════════════════════════════════
function quintic(t) { t = Math.max(0,Math.min(1,t)); return t*t*t*(t*(t*6-15)+10); }
function smoothPeak(t, s, c, e) {
if (t < s || t > e) return 0;
return t < c ? quintic((t-s)/(c-s)) : 1 - quintic((t-c)/(e-c));
}
function smoothPlat(t, s, e) {
const r = 0.015;
if (t < s || t > e) return 0;
let v = 1;
if (t < s+r) v = (t-s)/r;
if (t > e-r) v = (e-t)/r;
return quintic(Math.max(0,Math.min(1,v)));
}
function smoothstepJS(a, b, x) { const t = Math.max(0, Math.min(1, (x-a)/(b-a))); return t*t*(3-2*t); }
// ══════════════════════════════════════
// MAIN COASTER CURVE
// ══════════════════════════════════════
const SWITCH_T = 0.93;
const N_PTS = 8000;
const coasterPts = [];
for (let i = 0; i < N_PTS; i++) {
const t = i / N_PTS;
const a = t * Math.PI * 2;
let x = 620*Math.sin(a)+210*Math.sin(2*a)+65*Math.sin(5*a)+25*Math.cos(7*a);
let z = 500*Math.cos(a)+150*Math.cos(3*a)+45*Math.cos(7*a)+20*Math.sin(6*a);
let y = 20;
y = y*(1-smoothPlat(t,0,0.02)) + 8*smoothPlat(t,0,0.02);
y += 130*smoothPeak(t,0.025,0.075,0.11);
const l1 = smoothPlat(t,0.13,0.19);
if (l1 > 0) {
const lt = (t-0.13)/0.06, la = lt*Math.PI*2, lr = 40, lc = 65;
const td = new THREE.Vector2(620*Math.cos(a)+420*Math.cos(2*a), -500*Math.sin(a)-450*Math.sin(3*a)).normalize();
x += td.x*(1-Math.cos(la))*lr*0.6*l1;
z += td.y*(1-Math.cos(la))*lr*0.6*l1;
y = y*(1-l1) + (lc+Math.sin(la)*lr)*l1;
}
y += 70*smoothPlat(t,0.21,0.27);
y += 100*smoothPeak(t,0.29,0.34,0.39);
y -= 12*smoothPlat(t,0.41,0.46);
y += 90*smoothPeak(t,0.48,0.52,0.56);
y += 18*Math.sin(t*280)*smoothPlat(t,0.57,0.63)*smoothPeak(t,0.57,0.60,0.63);
const l2 = smoothPlat(t,0.66,0.72);
if (l2 > 0) {
const lt = (t-0.66)/0.06, la = lt*Math.PI*2, lr = 35, lc = 60;
const td = new THREE.Vector2(620*Math.cos(a)+420*Math.cos(2*a), -500*Math.sin(a)-450*Math.sin(3*a)).normalize();
x += td.x*(1-Math.cos(la))*lr*0.6*l2;
z += td.y*(1-Math.cos(la))*lr*0.6*l2;
y = y*(1-l2) + (lc+Math.sin(la)*lr)*l2;
}
const hz = smoothPlat(t,0.74,0.84);
y += 22*Math.sin(t*70)*hz*smoothPeak(t,0.74,0.79,0.84);
y += 10*Math.cos(t*110)*hz*smoothPeak(t,0.76,0.80,0.84);
y += 80*smoothPeak(t,0.86,0.90,0.93);
const br = smoothPlat(t,0.94,1.0);
y = y*(1-br) + (8+6*(1-Math.max(0,(t-0.94)/0.06)))*br;
y = Math.max(y, 4);
coasterPts.push(new THREE.Vector3(x, y, z));
}
const mainCurve = new THREE.CatmullRomCurve3(coasterPts, true, 'catmullrom', 0.3);
// ══════════════════════════════════════
// SPUR TRACK
// ══════════════════════════════════════
const switchPoint = mainCurve.getPointAt(SWITCH_T);
const switchTangent = mainCurve.getTangentAt(SWITCH_T);
const switchRight = new THREE.Vector3().crossVectors(switchTangent, new THREE.Vector3(0,1,0)).normalize();
const spurPts = [];
for (let i = 0; i <= 30; i++) {
const f = i / 30;
const fwd = switchTangent.clone().multiplyScalar(f * 80);
const lateral = switchRight.clone().multiplyScalar(Math.sin(f * Math.PI * 0.5) * 50);
const descent = new THREE.Vector3(0, -switchPoint.y * f * 0.55 + 2, 0);
const p = switchPoint.clone().add(fwd).add(lateral).add(descent);
p.y = Math.max(p.y, 5);
spurPts.push(p);
}
const spurCurve = new THREE.CatmullRomCurve3(spurPts, false, 'catmullrom', 0.5);
const spurEnd = spurCurve.getPointAt(1.0);
// ══════════════════════════════════════
// BANK / CURVATURE DATA
// ══════════════════════════════════════
const CURVE_SAMPLES = 4000;
const bankAngles = new Float32Array(CURVE_SAMPLES);
const curvatureData = new Float32Array(CURVE_SAMPLES);
for (let i = 0; i < CURVE_SAMPLES; i++) {
const t = i/CURVE_SAMPLES, dt = 1/CURVE_SAMPLES;
const t0 = Math.max(0,t-dt), t1 = Math.min(1,t+dt);
const tan0 = mainCurve.getTangentAt(t0), tan1 = mainCurve.getTangentAt(t1);
const dx = tan1.x-tan0.x, dy = tan1.y-tan0.y, dz = tan1.z-tan0.z;
curvatureData[i] = Math.sqrt(dx*dx+dy*dy+dz*dz)/(2*dt);
const tangent = mainCurve.getTangentAt(t);
const lat = new THREE.Vector3().crossVectors(tangent, new THREE.Vector3(0,1,0)).normalize();
bankAngles[i] = Math.atan2((dx*lat.x+dz*lat.z)*8, 1);
}
function getCurvature(t) { return curvatureData[Math.floor(((t%1)+1)%1*CURVE_SAMPLES)%CURVE_SAMPLES]; }
function getBankAngle(t) { return bankAngles[Math.floor(((t%1)+1)%1*CURVE_SAMPLES)%CURVE_SAMPLES]; }
// ══════════════════════════════════════
// TRACK — rails + spine + ties
// ══════════════════════════════════════
const chromeMaterials = [];
const railMat = new THREE.MeshPhysicalMaterial({
color: 0x94dcff, metalness: 1.0, roughness: 0.10,
clearcoat: 0.9, clearcoatRoughness: 0.08,
emissive: 0x153d70, emissiveIntensity: 0.5, envMapIntensity: 2.8,
});
const spineMat = new THREE.MeshPhysicalMaterial({
color: 0x4f91bd, metalness: 0.92, roughness: 0.22,
clearcoat: 0.65, clearcoatRoughness: 0.12,
emissive: 0x112a55, emissiveIntensity: 0.4, envMapIntensity: 2.0,
});
const chromeMat = new THREE.MeshPhysicalMaterial({
color: 0xdce8ef, metalness: 1.0, roughness: 0.08,
clearcoat: 1.0, clearcoatRoughness: 0.05, envMapIntensity: 3.2
});
chromeMaterials.push(railMat, spineMat, chromeMat);
function buildBankedRail(curve, sideSign, segs, closed) {
const pts = [];
for (let i = 0; i <= segs; i++) {
const t = i/segs, p = curve.getPointAt(t), tg = curve.getTangentAt(t);
const up = new THREE.Vector3(0,1,0);
const right = new THREE.Vector3().crossVectors(tg, up).normalize();
const binormal = new THREE.Vector3().crossVectors(right, tg).normalize();
const bank = closed ? getBankAngle(t) * 0.5 : 0;
const cB = Math.cos(bank), sB = Math.sin(bank);
const bRight = right.clone().multiplyScalar(cB).add(binormal.clone().multiplyScalar(sB));
const bUp = right.clone().multiplyScalar(-sB).add(binormal.clone().multiplyScalar(cB));
pts.push(p.clone().add(bRight.multiplyScalar(sideSign*1.8)).add(bUp.multiplyScalar(-0.8)));
}
return pts;
}
[1,-1].forEach(s => {
const pts = buildBankedRail(mainCurve, s, 1600, true);
scene.add(new THREE.Mesh(new THREE.TubeGeometry(new THREE.CatmullRomCurve3(pts, true), 1600, 0.16, 6, true), railMat));
});
{
const spinePts = [];
for (let i = 0; i <= 1200; i++) {
const t = i/1200, p = mainCurve.getPointAt(t);
spinePts.push(new THREE.Vector3(p.x, p.y - 1.6, p.z));
}
scene.add(new THREE.Mesh(new THREE.TubeGeometry(new THREE.CatmullRomCurve3(spinePts, true), 1200, 0.3, 6, true), spineMat));
}
const spurRailMat = railMat.clone(); spurRailMat.emissive = new THREE.Color(0x1a5533); chromeMaterials.push(spurRailMat);
[1,-1].forEach(s => {
const pts = buildBankedRail(spurCurve, s, 160, false);
scene.add(new THREE.Mesh(new THREE.TubeGeometry(new THREE.CatmullRomCurve3(pts, false), 160, 0.16, 6, false), spurRailMat));
});
{
const sp = [];
for (let i = 0; i <= 120; i++) { const p = spurCurve.getPointAt(i/120); sp.push(new THREE.Vector3(p.x, p.y-1.6, p.z)); }
scene.add(new THREE.Mesh(new THREE.TubeGeometry(new THREE.CatmullRomCurve3(sp, false), 120, 0.28, 6, false), spineMat));
}
{
const TIES = 700;
const tieGeo = new THREE.BoxGeometry(4.4, 0.16, 0.55);
const tieMat = new THREE.MeshStandardMaterial({ color: 0x33526e, metalness: 0.7, roughness: 0.35, emissive: 0x0c1c33, emissiveIntensity: 0.5 });
const tieInst = new THREE.InstancedMesh(tieGeo, tieMat, TIES);
const dummy = new THREE.Object3D();
const up = new THREE.Vector3(0,1,0);
for (let i = 0; i < TIES; i++) {
const t = i/TIES;
const p = mainCurve.getPointAt(t), tg = mainCurve.getTangentAt(t);
const right = new THREE.Vector3().crossVectors(tg, up).normalize();
const binormal = new THREE.Vector3().crossVectors(right, tg).normalize();
const bank = getBankAngle(t) * 0.5;
const cB = Math.cos(bank), sB = Math.sin(bank);
const bRight = right.clone().multiplyScalar(cB).add(binormal.clone().multiplyScalar(sB)).normalize();
const bUp = new THREE.Vector3().crossVectors(tg, bRight).normalize().negate();
dummy.matrix.makeBasis(bRight, bUp, tg.clone());
dummy.matrix.setPosition(p.clone().add(bUp.clone().multiplyScalar(-1.0)));
tieInst.setMatrixAt(i, dummy.matrix);
}
tieInst.instanceMatrix.needsUpdate = true;
scene.add(tieInst);
}
// ══════════════════════════════════════
// TRACK SWITCH
// ══════════════════════════════════════
const switchGroup = new THREE.Group();
switchGroup.position.copy(switchPoint);
switchGroup.lookAt(switchPoint.clone().add(switchTangent));
const basePlate = new THREE.Mesh(new THREE.BoxGeometry(10, 0.4, 8),
new THREE.MeshStandardMaterial({ color: 0x556677, metalness: 0.7, roughness: 0.3 }));
basePlate.position.y = -4.0;
switchGroup.add(basePlate);
const switchArm = new THREE.Mesh(new THREE.BoxGeometry(12, 0.3, 0.4),
new THREE.MeshStandardMaterial({ color: 0xffaa33, metalness: 0.8, roughness: 0.15, emissive: 0xaa6600, emissiveIntensity: 0.3 }));
switchArm.position.set(3, -3.7, 0);
switchGroup.add(switchArm);
const sigMatG = new THREE.MeshStandardMaterial({ color: 0x228822, emissive: 0x44ff44, emissiveIntensity: 2.0 });
const sigMatR = new THREE.MeshStandardMaterial({ color: 0x882222, emissive: 0xff4444, emissiveIntensity: 0.1 });
const sigG = new THREE.Mesh(new THREE.SphereGeometry(0.45, 8, 8), sigMatG); sigG.position.set(-4, -1.5, 2);
const sigR = new THREE.Mesh(new THREE.SphereGeometry(0.45, 8, 8), sigMatR); sigR.position.set(-4, -1.5, -2);
switchGroup.add(sigG, sigR);
scene.add(switchGroup);
let switchArmAngle = 0;
// ══════════════════════════════════════
// INSTANCED PILLARS + LED POSTS
// ══════════════════════════════════════
const pillarMat = new THREE.MeshStandardMaterial({ color:0x7aa5c4, metalness:.58, roughness:.31, envMapIntensity:.8 });
const footMat = new THREE.MeshStandardMaterial({ color:0x556677, metalness:.76, roughness:.28, envMapIntensity:1.1 });
const ledData=[];
const supportData=[];
for(let i=0;i<200;i++){
const t=i/200,p=mainCurve.getPointAt(t);
if(p.y>8){const h=p.y+1;supportData.push({x:p.x,z:p.z,h});ledData.push({t,pos:new THREE.Vector3(p.x,p.y-.5,p.z)});}
}
const pillarInst=new THREE.InstancedMesh(new THREE.CylinderGeometry(.35,.5,1,8),pillarMat,supportData.length);
const footInst=new THREE.InstancedMesh(new THREE.CylinderGeometry(1.5,2.8,4,8),footMat,supportData.length);
{
const d=new THREE.Object3D();
supportData.forEach((p,i)=>{
d.position.set(p.x,p.h/2-1,p.z);d.scale.set(1,p.h,1);d.rotation.set(0,0,0);d.updateMatrix();pillarInst.setMatrixAt(i,d.matrix);
d.position.set(p.x,.5,p.z);d.scale.set(1,1,1);d.updateMatrix();footInst.setMatrixAt(i,d.matrix);
});
pillarInst.instanceMatrix.needsUpdate=true;footInst.instanceMatrix.needsUpdate=true;scene.add(pillarInst,footInst);
}
const LED_COUNT=ledData.length;
const ledInst=new THREE.InstancedMesh(new THREE.SphereGeometry(.6,8,6),new THREE.MeshBasicMaterial({toneMapped:false}),LED_COUNT);
{
const dummy=new THREE.Object3D();
for(let i=0;i<LED_COUNT;i++){dummy.position.copy(ledData[i].pos);dummy.updateMatrix();ledInst.setMatrixAt(i,dummy.matrix);ledInst.setColorAt(i,new THREE.Color(0x2288bb));}
ledInst.instanceMatrix.needsUpdate=true;
}
scene.add(ledInst);
const ledColor=new THREE.Color();
const cartGlow=new THREE.PointLight(0x66ddff,6,60);scene.add(cartGlow);
const spurSupports=[];
for(let i=0;i<15;i++){const p=spurCurve.getPointAt(i/15);if(p.y>5)spurSupports.push({x:p.x,z:p.z,h:p.y+1});}
const spurPillarInst=new THREE.InstancedMesh(new THREE.CylinderGeometry(.3,.45,1,8),pillarMat,spurSupports.length);
{
const d=new THREE.Object3D();spurSupports.forEach((p,i)=>{d.position.set(p.x,p.h/2-1,p.z);d.scale.set(1,p.h,1);d.updateMatrix();spurPillarInst.setMatrixAt(i,d.matrix);});
spurPillarInst.instanceMatrix.needsUpdate=true;scene.add(spurPillarInst);
}
// ══════════════════════════════════════
// SPIRIT STREAMS
// ══════════════════════════════════════
const spiritClusters = [];
for (let c = 0; c < 6; c++) {
const cluster = { t: c/6, speed: 0.00008 + Math.random()*0.00012, hue: c/6, meshes: [] };
for (let j = 0; j < 3; j++) {
const clr = new THREE.Color().setHSL(cluster.hue, 0.9, 0.6);
const m = new THREE.Mesh(new THREE.SphereGeometry(0.4, 6, 4),
new THREE.MeshBasicMaterial({ color: clr, transparent: true, opacity: 0.9, blending: THREE.AdditiveBlending, depthWrite: false, toneMapped: false }));
scene.add(m); cluster.meshes.push(m);
}
spiritClusters.push(cluster);
}
const spiritLightA = new THREE.PointLight(0xff66aa, 4, 45); scene.add(spiritLightA);
const spiritLightB = new THREE.PointLight(0x66aaff, 4, 45); scene.add(spiritLightB);
// ══════════════════════════════════════
// BOARDING PLATFORM
// ══════════════════════════════════════
const spurEndTan = spurCurve.getTangentAt(1.0);
const platGroup = new THREE.Group();
const deck = new THREE.Mesh(new THREE.BoxGeometry(34,0.5,16), new THREE.MeshStandardMaterial({ color: 0x998877, roughness: 0.6, metalness: 0.2 }));
platGroup.add(deck);
const rlMat = chromeMat;
for (let xi = -16; xi <= 16; xi += 3.5) {
for (const zi of [-7.5, 7.5]) {
const post = new THREE.Mesh(new THREE.CylinderGeometry(0.1,0.1,2.5,5), rlMat);
post.position.set(xi, 1.5, zi); platGroup.add(post);
}
}
const roof = new THREE.Mesh(new THREE.BoxGeometry(36,0.3,18), new THREE.MeshStandardMaterial({ color: 0x88bbdd, metalness: 0.3, roughness: 0.25 }));
roof.position.y = 5.5; platGroup.add(roof);
for (const xi of [-15,-8,0,8,15]) for (const zi of [-7,7]) {
const col = new THREE.Mesh(new THREE.CylinderGeometry(0.15,0.2,5.5,6), rlMat);
col.position.set(xi,2.75,zi); platGroup.add(col);
}
const signMesh = new THREE.Mesh(new THREE.BoxGeometry(10,2.5,0.2), new THREE.MeshStandardMaterial({
color: 0x1144aa, emissive: 0x2255cc, emissiveIntensity: 1.2, metalness: 0.5, roughness: 0.3 }));
signMesh.position.set(0, 4.2, -8.5); platGroup.add(signMesh);
const stripMat = new THREE.MeshBasicMaterial({ color: 0xffeecc, toneMapped: false });
for (const xi of [-11, 0, 11]) {
const strip = new THREE.Mesh(new THREE.BoxGeometry(6, 0.12, 0.5), stripMat);
strip.position.set(xi, 5.3, 0); platGroup.add(strip);
}
const platLightA = new THREE.PointLight(0xffeedd, 8, 40); platLightA.position.set(-8, 4.6, 0); platGroup.add(platLightA);
const platLightB = new THREE.PointLight(0xffeedd, 8, 40); platLightB.position.set(8, 4.6, 0); platGroup.add(platLightB);
const lookDeck = new THREE.Mesh(new THREE.BoxGeometry(14,0.5,12), new THREE.MeshStandardMaterial({ color: 0x887766, roughness: 0.5 }));
lookDeck.position.set(-22,0,0); platGroup.add(lookDeck);
for (const bx of [-25,-19]) for (const bz of [3,-3]) {
const bench = new THREE.Mesh(new THREE.BoxGeometry(3,0.8,1.2), new THREE.MeshStandardMaterial({ color: 0x664422, roughness: 0.6 }));
bench.position.set(bx,0.65,bz); platGroup.add(bench);
}
const scope = new THREE.Mesh(new THREE.CylinderGeometry(0.15,0.2,2,6), chromeMat);
scope.position.set(-28, 2, 0); scope.rotation.x = -0.3; platGroup.add(scope);
for (let s = 0; s < 5; s++) {
const step2 = new THREE.Mesh(new THREE.BoxGeometry(10,0.3,2), new THREE.MeshStandardMaterial({ color: 0xaaaaaa, roughness: 0.5 }));
step2.position.set(19+s*2, -s*0.4, 0); platGroup.add(step2);
}
platGroup.position.copy(spurEnd);
platGroup.position.y = Math.max(spurEnd.y - 2, 3);
platGroup.lookAt(spurEnd.clone().add(spurEndTan));
scene.add(platGroup);
// ══════════════════════════════════════
// TERRAIN — Viking Vínland palette on the v3 shoreline model
// ══════════════════════════════════════
const sparseCoasterPts = [];
for (let i = 0; i < 120; i++) { const p = mainCurve.getPointAt(i/120); sparseCoasterPts.push({x:p.x,z:p.z}); }
function getMinCD(x, z) {
let min = Infinity;
for (const p of sparseCoasterPts) { const d = (x-p.x)**2+(z-p.z)**2; if (d<min) min=d; }
return Math.sqrt(min);
}
const WATER_BASE = -0.5;
// ── Truck stunt zone: a pad flattened INTO the real terrain ──
const STUNT_X = 450, STUNT_Z = 250, STUNT_R = 210, STUNT_H = 6;
// ── TRUCK JUMP TRACK: ground course PARALLEL to the coaster loop ──
const TRUCK_OFF = 55, TRUCK_TRACK_H = 4;
const truckTrackPts = [];
{
const lastRight = new THREE.Vector3(1,0,0);
for (let i = 0; i < 200; i++) {
const t = i/200;
const p = mainCurve.getPointAt(t), tg = mainCurve.getTangentAt(t);
const rt = new THREE.Vector3().crossVectors(tg, new THREE.Vector3(0,1,0));
if (rt.length() > 0.3) { rt.normalize(); lastRight.copy(rt); } // loop-safe: vertical tangents reuse last lateral
truckTrackPts.push(new THREE.Vector3(p.x + lastRight.x*TRUCK_OFF, 0, p.z + lastRight.z*TRUCK_OFF));
}
}
const truckTrackCurve = new THREE.CatmullRomCurve3(truckTrackPts, true, 'catmullrom', 0.3);
const sparseTruckPts = truckTrackPts.filter((_,i)=>i%2===0).map(p=>({x:p.x,z:p.z}));
function getMinTruckCD(x, z) {
let min = Infinity;
for (const p of sparseTruckPts) { const d = (x-p.x)**2+(z-p.z)**2; if (d<min) min=d; }
return Math.sqrt(min);
}
function terrainHeightAt(x, z) {
let h = Math.sin(x*0.005)*Math.cos(z*0.004)*12 + Math.sin(x*0.012+1.3)*Math.cos(z*0.009+0.7)*6
+ Math.sin(x*0.025+2.1)*Math.sin(z*0.02+1.4)*3 + Math.cos(x*0.003+z*0.003)*8;
const dist = Math.sqrt(x*x+z*z), ef = Math.max(0,(dist-300)/600);
const cliff = (Math.sin(x*0.008+0.5)*Math.sin(z*0.007+1.2)*35 + Math.sin(x*0.015)*Math.cos(z*0.018)*18
+ Math.abs(Math.sin(x*0.03)*Math.cos(z*0.025))*15) * ef*ef;
let fh = h + cliff + Math.sin(x*0.006+0.3)*Math.cos(z*0.005+0.8)*5*(1-ef);
const cd = getMinCD(x,z);
if (cd < 60) { const bl = Math.max(0,(cd-15)/45); fh = fh*bl + (-2.5)*(1-bl); }
const q = (fh - WATER_BASE) / 9.5;
if (Math.abs(q) < 1) fh = WATER_BASE + Math.sign(q) * Math.pow(Math.abs(q), 1.55) * 9.5;
// Truck course corridor — a drivable shelf beside the lagoon channel,
// so the coaster soars overhead and the cliffside geometry rings the horizon
const tcd = getMinTruckCD(x, z);
if (tcd < 58) {
const tb = smoothstepJS(58, 26, tcd);
fh = fh * (1 - tb) + TRUCK_TRACK_H * tb;
}
const sdx = x - STUNT_X, sdz = z - STUNT_Z, sdd = Math.sqrt(sdx*sdx + sdz*sdz);
if (sdd < STUNT_R + 80) {
const b = smoothstepJS(STUNT_R + 80, STUNT_R - 30, sdd); // 1 inside, 0 outside
fh = fh * (1 - b) + STUNT_H * b;
}
return Math.max(fh, -4.2);
}
function makeNoiseTexture(size=256, seed=1337) {
const c = document.createElement('canvas'); c.width = c.height = size;
const cx = c.getContext('2d'), img = cx.createImageData(size,size);
let r = seed >>> 0;
const rnd = () => ((r = (r*1664525 + 1013904223) >>> 0) / 4294967296);
const base = new Float32Array(size*size);
for (let i=0;i<base.length;i++) base[i]=rnd();
for (let y=0;y<size;y++) for (let x=0;x<size;x++) {
let v=0, w=0;
for (let oy=-2;oy<=2;oy++) for (let ox=-2;ox<=2;ox++) {
const xx=(x+ox+size)%size, yy=(y+oy+size)%size, ww=1/(1+ox*ox+oy*oy);
v += base[yy*size+xx]*ww; w += ww;
}
v = Math.max(0, Math.min(1, (v/w-.5)*2.2+.5));
const k=(y*size+x)*4, b=Math.round(v*255); img.data[k]=img.data[k+1]=img.data[k+2]=b; img.data[k+3]=255;
}
cx.putImageData(img,0,0);
const tex = new THREE.CanvasTexture(c); tex.wrapS=tex.wrapT=THREE.RepeatWrapping; tex.repeat.set(34,34); tex.colorSpace=THREE.NoColorSpace;
tex.minFilter=THREE.LinearMipmapLinearFilter; tex.magFilter=THREE.LinearFilter; tex.generateMipmaps=true;
return tex;
}
const terrainDetailTex = makeNoiseTexture(256, 93811);
const rockDetailTex = makeNoiseTexture(128, 44117); rockDetailTex.repeat.set(4,4);
const barkDetailTex = makeNoiseTexture(128, 77123); barkDetailTex.repeat.set(3,12);
let terrainMat;
{
const sz = 2400, sg = 240;
const geo = new THREE.PlaneGeometry(sz,sz,sg,sg); geo.rotateX(-Math.PI/2);
const pAttr = geo.attributes.position;
const colors = new Float32Array(pAttr.count*3);
// Viking saga land palette: bone-sand beaches, moss lowlands, fjord-grey rock, snow crests
const sand = new THREE.Color(0xc4b48a), grass = new THREE.Color(0x6b8a4a),
deepGrass = new THREE.Color(0x4a5d3a), rock = new THREE.Color(0x6a6358),
high = new THREE.Color(0xe8e0d0);
const tmp = new THREE.Color();
for (let i = 0; i < pAttr.count; i++) {
const x = pAttr.getX(i), z = pAttr.getZ(i), fh = terrainHeightAt(x,z);
pAttr.setY(i, fh);
const shore = Math.exp(-Math.abs(fh-WATER_BASE)*0.24);
const mid = smoothstepJS(4,30,fh);
const elev = smoothstepJS(8,62,fh);
const alpine = smoothstepJS(48,90,fh);
tmp.copy(grass).lerp(deepGrass,mid).lerp(rock,elev).lerp(high,alpine).lerp(sand,shore*.94);
const grain = (Math.sin(x*.12+z*.07)+Math.sin(x*.031-z*.091))*0.018;
tmp.offsetHSL(grain,0,grain*.6);
colors[i*3]=tmp.r; colors[i*3+1]=tmp.g; colors[i*3+2]=tmp.b;
}
geo.setAttribute('color', new THREE.BufferAttribute(colors,3));
geo.computeVertexNormals();
terrainMat = new THREE.MeshStandardMaterial({ vertexColors:true, roughness:.92, metalness:.02, bumpMap:terrainDetailTex, bumpScale:1.35, envMapIntensity:.35 });
const terrainMesh = new THREE.Mesh(geo, terrainMat); terrainMesh.receiveShadow=false; scene.add(terrainMesh);
}
const rockMainCount = 520, rockShardCount = 360;
const rockMat = new THREE.MeshStandardMaterial({ color:0xffffff, roughness:.88, metalness:.05, bumpMap:rockDetailTex, bumpScale:.55, envMapIntensity:.25 });
const rkInst = new THREE.InstancedMesh(new THREE.IcosahedronGeometry(1,1), rockMat, rockMainCount);
const shardInst = new THREE.InstancedMesh(new THREE.TetrahedronGeometry(1,1), rockMat, rockShardCount);
{
const dummy = new THREE.Object3D(), col = new THREE.Color();
for (let i = 0; i < rockMainCount; i++) {
const a=Math.random()*Math.PI*2, d=i<330?400+Math.random()*700:100+Math.random()*350;
let x=Math.cos(a)*d, z=Math.sin(a)*d;
const rdx=x-STUNT_X, rdz=z-STUNT_Z, rdd=Math.hypot(rdx,rdz);
if (rdd < STUNT_R+18) { const push=(STUNT_R+26+Math.random()*50)/Math.max(1,rdd); x=STUNT_X+rdx*push; z=STUNT_Z+rdz*push; }
const s0=i<330?2+Math.random()*11:.7+Math.random()*3.5;
dummy.position.set(x,terrainHeightAt(x,z)+s0*.18,z); dummy.scale.set(s0,s0*(.28+Math.random()*.62),s0*(.7+Math.random()*.6));
dummy.rotation.set(Math.random()*.7,Math.random()*Math.PI*2,Math.random()*.45); dummy.updateMatrix(); rkInst.setMatrixAt(i,dummy.matrix);
rkInst.setColorAt(i,col.setHSL(.53+Math.random()*.09,.06,.28+Math.random()*.24));
if (i<rockShardCount) {
const ss=s0*(.35+Math.random()*.38); dummy.position.set(x+(Math.random()-.5)*s0,terrainHeightAt(x,z)+s0*.52,z+(Math.random()-.5)*s0);
dummy.scale.set(ss*.6,ss*1.4,ss*.7); dummy.rotation.set(Math.random(),Math.random()*Math.PI*2,Math.random()); dummy.updateMatrix(); shardInst.setMatrixAt(i,dummy.matrix);
shardInst.setColorAt(i,col.setHSL(.50+Math.random()*.08,.05,.32+Math.random()*.18));
}
}
rkInst.instanceMatrix.needsUpdate=true; rkInst.instanceColor.needsUpdate=true;
shardInst.instanceMatrix.needsUpdate=true; shardInst.instanceColor.needsUpdate=true;
scene.add(rkInst,shardInst);
}
const TREE_MAX = 440;
const trunkMat = new THREE.MeshStandardMaterial({ color:0x70451f, roughness:.95, bumpMap:barkDetailTex, bumpScale:.28 });
const leafMat = new THREE.MeshStandardMaterial({ roughness:.82, metalness:0, vertexColors:true });
const trunkInst = new THREE.InstancedMesh(new THREE.CylinderGeometry(.18,.46,1,7), trunkMat, TREE_MAX);
const branchInst = new THREE.InstancedMesh(new THREE.ConeGeometry(.75,2.4,7), trunkMat, TREE_MAX);
const leafLow = new THREE.InstancedMesh(new THREE.IcosahedronGeometry(1,1), leafMat, TREE_MAX);
const leafMid = new THREE.InstancedMesh(new THREE.IcosahedronGeometry(1,1), leafMat, TREE_MAX);
const leafTop = new THREE.InstancedMesh(new THREE.IcosahedronGeometry(1,1), leafMat, TREE_MAX);
let treeCount = 0;
{
const dummy=new THREE.Object3D(), col=new THREE.Color();
for (let i=0;i<TREE_MAX;i++) {
const a=Math.random()*Math.PI*2, d=34+Math.random()*610, x=Math.cos(a)*d, z=Math.sin(a)*d;
if (getMinCD(x,z)<22 || Math.max(0,(Math.sqrt(x*x+z*z)-300)/600)>.72 || Math.hypot(x-STUNT_X,z-STUNT_Z)<STUNT_R+18 || getMinTruckCD(x,z)<32) continue;
const gy=terrainHeightAt(x,z); if (gy < WATER_BASE+1.2) continue;
const th=4.2+Math.random()*8.8, lr=2.2+Math.random()*3.4, evergreen=Math.random()<.43;
dummy.rotation.set(0,Math.random()*Math.PI*2,0); dummy.position.set(x,gy+th/2,z); dummy.scale.set(1,th,1); dummy.updateMatrix(); trunkInst.setMatrixAt(treeCount,dummy.matrix);
dummy.position.set(x,gy+th*.78,z); dummy.scale.set(lr*.75,lr*1.05,lr*.75); dummy.updateMatrix(); branchInst.setMatrixAt(treeCount,dummy.matrix);
const hue=evergreen?.29:.24+Math.random()*.10, sat=evergreen?.48:.55, lum=.20+Math.random()*.15;
for (const [inst,yf,sx,sy] of [[leafLow,.72,1.05,.62],[leafMid,.94,.86,.68],[leafTop,1.12,.62,.72]]) {
dummy.position.set(x+(Math.random()-.5)*.5,gy+th*yf,z+(Math.random()-.5)*.5); dummy.scale.set(lr*sx,lr*sy,lr*sx); dummy.rotation.set(Math.random()*.15,Math.random()*Math.PI,Math.random()*.12); dummy.updateMatrix();
inst.setMatrixAt(treeCount,dummy.matrix); inst.setColorAt(treeCount,col.setHSL(hue+Math.random()*.025,sat,lum+Math.random()*.05));
}
treeCount++;
}
for (const inst of [trunkInst,branchInst,leafLow,leafMid,leafTop]) { inst.count=treeCount; inst.instanceMatrix.needsUpdate=true; if(inst.instanceColor) inst.instanceColor.needsUpdate=true; scene.add(inst); }
}
// ══════════════════════════════════════
// PARK BUILDINGS
// ══════════════════════════════════════
const nightWindows = [];
const beacons = [];
const animatedRides = [];
let parkDetail = 0.88;
function glowMat(hexColor, base) {
const m = new THREE.MeshStandardMaterial({ color: 0x222222, emissive: hexColor, emissiveIntensity: base });
nightWindows.push(m);
return m;
}
function createBuilding(x, z, type) {
const group = new THREE.Group();
group.position.set(x, 0, z);
if (type === 'tent') {
const tentH = 12 + Math.random()*6, tentR = 6 + Math.random()*4;
const stripeColor = [0xcc2222, 0x2244aa, 0xdd8800, 0x22aa44][Math.floor(Math.random()*4)];
const cone = new THREE.Mesh(new THREE.ConeGeometry(tentR, tentH, 10), new THREE.MeshStandardMaterial({ color: stripeColor, roughness: 0.7 }));
cone.position.y = tentH/2; group.add(cone);
const wall = new THREE.Mesh(new THREE.CylinderGeometry(tentR, tentR+1, tentH*0.3, 10), new THREE.MeshStandardMaterial({ color: 0xeeeecc, roughness: 0.6 }));
wall.position.y = tentH*0.15; group.add(wall);
const door = new THREE.Mesh(new THREE.PlaneGeometry(2.4, 2.6), glowMat(0xffcc66, 0.6));
door.position.set(0, 1.5, tentR + 1.02); group.add(door);
}
else if (type === 'tower') {
const towerH = 35 + Math.random()*20;