3D_gridworld_environment/maze3d.html at main · HereisYiran/3D_gridworld_environment · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Maze 3D Viewer</title>
<style>
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body { background: #0a0a12; font-family: 'Courier New', monospace; overflow: hidden; }
  canvas { display: block; }
  #ui {
    position: fixed; top: 16px; left: 16px;
    background: rgba(10,10,20,0.85);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    padding: 14px 18px;
    color: #ccc;
    font-size: 12px;
    line-height: 1.8;
    backdrop-filter: blur(6px);
  }
  #ui h3 { color: #fff; margin-bottom: 6px; font-size: 13px; letter-spacing: 0.08em; }
  .dot { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
  #info {
    position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
    background: rgba(10,10,20,0.7);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 8px 20px;
    color: rgba(255,255,255,0.5);
    font-size: 11px;
    letter-spacing: 0.06em;
    pointer-events: none;
  }
</style>
</head>
<body>
<div id="ui">
  <h3>LEGEND</h3>
  <div><span class="dot" style="background:#8ca0b8"></span>W = wall</div>
  <div><span class="dot" style="background:#4a7c59"></span>. = ground</div>
  <div><span class="dot" style="background:#d4822a"></span>B = berry bush</div>
  <div><span class="dot" style="background:#6b8f3e"></span>P = plain bush</div>
  <div><span class="dot" style="background:#e8d44d"></span>e = edible bug</div>
  <div><span class="dot" style="background:#c0392b"></span>X = poison bug</div>
  <div><span class="dot" style="background:#4fc3f7"></span>A = agent start</div>
</div>
<div id="info">drag to orbit · scroll to zoom · right-drag to pan</div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
<script>
// ─── MAZE DATA ────────────────────────────────────────────────────────────────
const RAW = [
  "WWWWWWWWWWW",
  "W...B.W.B.W",
  "W.WW..WW..W",
  "W.........W",
  "W.P.W...WWW",
  "W...WA....W",
  "WWW.W.W...W",
  "W.......WWW",
  "W.WW..W...W",
  "W...e.W.X.W",
  "WWWWWWWWWWW"
];

const ROWS = RAW.length;
const COLS = RAW[0].length;

// ─── SCENE SETUP ─────────────────────────────────────────────────────────────
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFSoftShadowMap;
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 1.1;
document.body.appendChild(renderer.domElement);

const scene = new THREE.Scene();
scene.background = new THREE.Color(0x0d0d1a);
scene.fog = new THREE.Fog(0x0d0d1a, 18, 35);

const camera = new THREE.PerspectiveCamera(52, window.innerWidth / window.innerHeight, 0.1, 100);
camera.position.set(5, 14, -4);
camera.lookAt(5, 0, 5);

// ─── LIGHTS ──────────────────────────────────────────────────────────────────
const ambient = new THREE.AmbientLight(0x334466, 0.6);
scene.add(ambient);

const sun = new THREE.DirectionalLight(0xffeedd, 1.4);
sun.position.set(8, 18, -4);
sun.castShadow = true;
sun.shadow.mapSize.set(2048, 2048);
sun.shadow.camera.near = 0.5;
sun.shadow.camera.far = 50;
sun.shadow.camera.left = -15;
sun.shadow.camera.right = 15;
sun.shadow.camera.top = 15;
sun.shadow.camera.bottom = -15;
sun.shadow.bias = -0.001;
scene.add(sun);

const fill = new THREE.DirectionalLight(0x6688cc, 0.35);
fill.position.set(-5, 8, 12);
scene.add(fill);

// Subtle point light for mood
const mood = new THREE.PointLight(0xff9944, 0.8, 12);
mood.position.set(5, 3, 5);
scene.add(mood);

// ─── MATERIALS ───────────────────────────────────────────────────────────────
function mat(color, rough=0.85, metal=0.0, emissive=0x000000, emissiveIntensity=0) {
  return new THREE.MeshStandardMaterial({ color, roughness: rough, metalness: metal, emissive, emissiveIntensity });
}

const M = {
  ground:   mat(0x3a5c3a, 0.95),
  wall:     mat(0x7a8fa8, 0.7, 0.1),
  wallTop:  mat(0x95aac0, 0.6, 0.15),
  berryB:   mat(0xb85c1a, 0.6),  // warm orange-brown trunk
  berryTop: mat(0xff6b35, 0.4, 0.0, 0xff4400, 0.3), // glowing berry
  plainB:   mat(0x4a7030, 0.8),
  bugE:     mat(0xe8d44d, 0.3, 0.4, 0xffee00, 0.6),
  bugX:     mat(0xc0392b, 0.3, 0.3, 0xff0000, 0.5),
  agent:    mat(0x4fc3f7, 0.2, 0.7, 0x00aaff, 0.4),
  floor:    mat(0x2a3a2a, 0.95),
};

// ─── GEOMETRY HELPERS ────────────────────────────────────────────────────────
function addBox(x, y, z, w, h, d, material, castShadow=true, receiveShadow=true) {
  const geo = new THREE.BoxGeometry(w, h, d);
  const mesh = new THREE.Mesh(geo, material);
  mesh.position.set(x, y, z);
  mesh.castShadow = castShadow;
  mesh.receiveShadow = receiveShadow;
  scene.add(mesh);
  return mesh;
}

function addCylinder(x, y, z, rt, rb, h, material) {
  const geo = new THREE.CylinderGeometry(rt, rb, h, 10);
  const mesh = new THREE.Mesh(geo, material);
  mesh.position.set(x, y, z);
  mesh.castShadow = true;
  scene.add(mesh);
  return mesh;
}

function addSphere(x, y, z, r, material) {
  const geo = new THREE.SphereGeometry(r, 14, 10);
  const mesh = new THREE.Mesh(geo, material);
  mesh.position.set(x, y, z);
  mesh.castShadow = true;
  scene.add(mesh);
  return mesh;
}

// ─── GROUND PLANE ────────────────────────────────────────────────────────────
const groundGeo = new THREE.PlaneGeometry(COLS, ROWS);
const groundMesh = new THREE.Mesh(groundGeo, M.floor);
groundMesh.rotation.x = -Math.PI / 2;
groundMesh.position.set(COLS / 2 - 0.5, 0, ROWS / 2 - 0.5);
groundMesh.receiveShadow = true;
scene.add(groundMesh);

// Grid lines on floor
const gridHelper = new THREE.GridHelper(Math.max(COLS, ROWS), Math.max(COLS, ROWS), 0x334433, 0x223322);
gridHelper.position.set(COLS/2 - 0.5, 0.01, ROWS/2 - 0.5);
scene.add(gridHelper);

// ─── BUILD MAZE ──────────────────────────────────────────────────────────────
const bugMeshes = [];

for (let row = 0; row < ROWS; row++) {
  for (let col = 0; col < COLS; col++) {
    const ch = RAW[row][col];
    const cx = col;       // X = column
    const cz = row;       // Z = row
    const cy = 0;

    if (ch === 'W') {
      // Wall: slightly varied heights for visual interest
      const h = 1.0 + (((col * 7 + row * 13) % 5) * 0.04);
      addBox(cx, h/2, cz, 0.98, h, 0.98, M.wall);
      // cap
      addBox(cx, h + 0.04, cz, 1.02, 0.08, 1.02, M.wallTop);
    } else {
      // Floor tile (slight variation)
      const tileH = 0.04;
      const gv = ((col + row) % 2 === 0) ? 0x2e4a2e : 0x334a33;
      const tileMat = mat(gv, 0.95);
      addBox(cx, -tileH/2, cz, 0.99, tileH, 0.99, tileMat, false, true);

      if (ch === 'B') {
        // Berry bush: trunk + glowing berry cluster
        addCylinder(cx, 0.4, cz, 0.12, 0.18, 0.8, M.berryB);
        addSphere(cx, 1.0, cz, 0.32, M.berryTop);
        // smaller berry accents
        addSphere(cx + 0.18, 0.9, cz + 0.1, 0.14, M.berryTop);
        addSphere(cx - 0.14, 0.85, cz - 0.15, 0.12, M.berryTop);

      } else if (ch === 'P') {
        // Plain bush: just green dome
        addCylinder(cx, 0.3, cz, 0.1, 0.15, 0.6, M.plainB);
        addSphere(cx, 0.85, cz, 0.3, mat(0x3d6e22, 0.85));

      } else if (ch === 'e') {
        // Edible bug: glowing yellow sphere + legs suggestion
        const bugMesh = addSphere(cx, 0.18, cz, 0.16, M.bugE);
        bugMeshes.push({ mesh: bugMesh, type: 'e', baseY: 0.18, cx, cz });

      } else if (ch === 'X') {
        // Poison bug: glowing red sphere
        const bugMesh = addSphere(cx, 0.18, cz, 0.16, M.bugX);
        bugMeshes.push({ mesh: bugMesh, type: 'X', baseY: 0.18, cx, cz });

      } else if (ch === 'A') {
        // Agent start marker: glowing pillar + sphere
        addCylinder(cx, 0.5, cz, 0.08, 0.12, 1.0, mat(0x226688, 0.4, 0.6));
        addSphere(cx, 1.1, cz, 0.2, M.agent);
        // Ring on floor
        const ringGeo = new THREE.RingGeometry(0.35, 0.45, 24);
        const ringMesh = new THREE.Mesh(ringGeo, mat(0x4fc3f7, 0.3, 0.5, 0x00aaff, 0.8));
        ringMesh.rotation.x = -Math.PI / 2;
        ringMesh.position.set(cx, 0.02, cz);
        scene.add(ringMesh);
      }
    }
  }
}

// ─── ORBIT CONTROLS (manual implementation) ──────────────────────────────────
let isDragging = false, isRightDrag = false;
let prevMouse = { x: 0, y: 0 };
let spherical = { theta: -0.4, phi: 0.85, radius: 18 };
let panOffset = new THREE.Vector3(5, 0, 5);

function updateCamera() {
  const x = spherical.radius * Math.sin(spherical.phi) * Math.sin(spherical.theta);
  const y = spherical.radius * Math.cos(spherical.phi);
  const z = spherical.radius * Math.sin(spherical.phi) * Math.cos(spherical.theta);
  camera.position.set(
    panOffset.x + x,
    panOffset.y + y,
    panOffset.z + z
  );
  camera.lookAt(panOffset.x, panOffset.y, panOffset.z);
}
updateCamera();

renderer.domElement.addEventListener('mousedown', e => {
  isDragging = true;
  isRightDrag = e.button === 2;
  prevMouse = { x: e.clientX, y: e.clientY };
});
renderer.domElement.addEventListener('contextmenu', e => e.preventDefault());
window.addEventListener('mouseup', () => isDragging = false);
window.addEventListener('mousemove', e => {
  if (!isDragging) return;
  const dx = e.clientX - prevMouse.x;
  const dy = e.clientY - prevMouse.y;
  prevMouse = { x: e.clientX, y: e.clientY };
  if (isRightDrag) {
    const right = new THREE.Vector3();
    const up = new THREE.Vector3(0, 1, 0);
    right.crossVectors(camera.getWorldDirection(new THREE.Vector3()), up).normalize();
    panOffset.addScaledVector(right, -dx * 0.02);
    panOffset.y += dy * 0.02;
  } else {
    spherical.theta -= dx * 0.008;
    spherical.phi = Math.max(0.15, Math.min(1.4, spherical.phi - dy * 0.008));
  }
  updateCamera();
});
renderer.domElement.addEventListener('wheel', e => {
  spherical.radius = Math.max(4, Math.min(35, spherical.radius + e.deltaY * 0.02));
  updateCamera();
});

// ─── ANIMATION LOOP ──────────────────────────────────────────────────────────
const clock = new THREE.Clock();
function animate() {
  requestAnimationFrame(animate);
  const t = clock.getElapsedTime();

  // Animate bugs (hover + spin)
  bugMeshes.forEach(({ mesh, type, baseY, cx, cz }, i) => {
    const phase = i * 1.3;
    mesh.position.y = baseY + Math.sin(t * 2.5 + phase) * 0.07;
    mesh.rotation.y = t * (type === 'X' ? -1.8 : 1.2) + phase;
  });

  // Pulse mood light
  mood.intensity = 0.6 + Math.sin(t * 0.8) * 0.2;

  renderer.render(scene, camera);
}
animate();

// ─── RESIZE ──────────────────────────────────────────────────────────────────
window.addEventListener('resize', () => {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
});
</script>
</body>
</html>