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File size: 20,749 Bytes
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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Swamp Goblin — Voxel Enemy</title>

  <style>
    :root {
      color-scheme: dark;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system,
        BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html,
    body {
      width: 100%;
      height: 100%;
      margin: 0;
      overflow: hidden;
      background: #789887;
    }

    #stage {
      position: fixed;
      inset: 0;
    }

    canvas {
      display: block;
      width: 100%;
      height: 100%;
      cursor: grab;
      touch-action: none;
    }

    canvas:active {
      cursor: grabbing;
    }

    .vignette {
      position: fixed;
      inset: 0;
      pointer-events: none;
      background:
        radial-gradient(
          ellipse at 50% 45%,
          transparent 45%,
          rgba(17, 28, 22, 0.22) 100%
        );
    }

    .hud {
      position: fixed;
      top: 24px;
      left: 24px;
      z-index: 2;
      max-width: min(360px, calc(100vw - 48px));
      padding: 16px 18px;
      color: #f2f4df;
      background: rgba(20, 31, 24, 0.76);
      border: 1px solid rgba(230, 235, 196, 0.2);
      border-radius: 14px;
      box-shadow: 0 14px 40px rgba(15, 26, 20, 0.22);
      backdrop-filter: blur(12px);
      pointer-events: none;
    }

    .eyebrow {
      margin: 0 0 6px;
      color: #b8ca91;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    h1 {
      margin: 0;
      font-size: clamp(23px, 4vw, 34px);
      line-height: 1;
      letter-spacing: -0.035em;
    }

    .subtitle {
      margin: 8px 0 0;
      color: rgba(242, 244, 223, 0.68);
      font-size: 13px;
    }

    .controls {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 3;
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 12px;
      color: rgba(245, 247, 229, 0.82);
      background: rgba(20, 31, 24, 0.72);
      border: 1px solid rgba(230, 235, 196, 0.18);
      border-radius: 12px;
      box-shadow: 0 12px 35px rgba(15, 26, 20, 0.2);
      backdrop-filter: blur(10px);
      font-size: 12px;
    }

    #pause {
      appearance: none;
      padding: 8px 12px;
      color: #203025;
      background: #b8ca91;
      border: 0;
      border-radius: 8px;
      font: inherit;
      font-weight: 800;
      cursor: pointer;
    }

    #pause:hover {
      background: #d2dfb0;
    }

    #hint {
      position: fixed;
      left: 50%;
      bottom: 24px;
      z-index: 2;
      transform: translateX(-50%);
      padding: 8px 12px;
      color: rgba(245, 247, 229, 0.72);
      background: rgba(20, 31, 24, 0.55);
      border: 1px solid rgba(230, 235, 196, 0.12);
      border-radius: 999px;
      box-shadow: 0 8px 25px rgba(15, 26, 20, 0.15);
      backdrop-filter: blur(8px);
      font-size: 11px;
      white-space: nowrap;
      pointer-events: none;
    }

    @media (max-width: 640px) {
      .hud {
        top: 14px;
        left: 14px;
        padding: 12px 14px;
      }

      .subtitle {
        display: none;
      }

      .controls {
        right: 14px;
        bottom: 14px;
      }

      #hint {
        display: none;
      }
    }
  </style>
</head>

<body>
  <div id="stage"></div>
  <div class="vignette"></div>

  <section class="hud" aria-label="Scene information">
    <p class="eyebrow">Voxel Enemy Archive</p>
    <h1>Swamp Goblin</h1>
    <p class="subtitle">Big-eared woodland raider with a leather vest and spiked club.</p>
  </section>

  <div id="hint">Drag to orbit · Scroll to zoom · Double-click to reset</div>

  <div class="controls">
    <button id="pause" type="button">Pause turntable</button>
    <span>Auto-rotating</span>
  </div>

  <script type="module">
    import * as THREE from
      "https://cdnjs.cloudflare.com/ajax/libs/three.js/0.160.0/three.module.min.js";

    const stage = document.getElementById("stage");
    const pauseButton = document.getElementById("pause");

    // -------------------------------------------------------------------------
    // Renderer, scene, camera
    // -------------------------------------------------------------------------

    const renderer = new THREE.WebGLRenderer({
      antialias: true,
      alpha: false,
      powerPreference: "high-performance"
    });

    renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
    renderer.setSize(window.innerWidth, window.innerHeight);
    renderer.outputColorSpace = THREE.SRGBColorSpace;
    renderer.toneMapping = THREE.ACESFilmicToneMapping;
    renderer.toneMappingExposure = 1.05;
    renderer.shadowMap.enabled = true;
    renderer.shadowMap.type = THREE.PCFSoftShadowMap;
    renderer.domElement.setAttribute(
      "aria-label",
      "Interactive 3D voxel swamp goblin enemy"
    );
    stage.appendChild(renderer.domElement);

    const scene = new THREE.Scene();
    scene.background = new THREE.Color(0x789887);
    scene.fog = new THREE.Fog(0x789887, 19, 42);

    const camera = new THREE.PerspectiveCamera(
      38,
      window.innerWidth / window.innerHeight,
      0.1,
      100
    );

    const cameraTarget = new THREE.Vector3(0, 2.25, 0);
    const cameraView = {
      theta: 0.72,
      phi: 1.12,
      radius: 12.6
    };

    function updateCamera() {
      const sinPhi = Math.sin(cameraView.phi);

      camera.position.set(
        cameraTarget.x +
          cameraView.radius * sinPhi * Math.sin(cameraView.theta),
        cameraTarget.y + cameraView.radius * Math.cos(cameraView.phi),
        cameraTarget.z +
          cameraView.radius * sinPhi * Math.cos(cameraView.theta)
      );

      camera.lookAt(cameraTarget);
    }

    updateCamera();

    // -------------------------------------------------------------------------
    // Lighting
    // -------------------------------------------------------------------------

    const hemisphere = new THREE.HemisphereLight(
      0xd8ead4,
      0x344336,
      1.75
    );
    scene.add(hemisphere);

    const keyLight = new THREE.DirectionalLight(0xffe3a6, 3.2);
    keyLight.position.set(6, 10, 8);
    keyLight.castShadow = true;
    keyLight.shadow.mapSize.set(2048, 2048);
    keyLight.shadow.camera.near = 1;
    keyLight.shadow.camera.far = 30;
    keyLight.shadow.camera.left = -7;
    keyLight.shadow.camera.right = 7;
    keyLight.shadow.camera.top = 8;
    keyLight.shadow.camera.bottom = -5;
    keyLight.shadow.bias = -0.0004;
    keyLight.shadow.normalBias = 0.025;
    keyLight.target.position.set(0, 2, 0);
    scene.add(keyLight, keyLight.target);

    const fillLight = new THREE.DirectionalLight(0x9fc9d0, 1.1);
    fillLight.position.set(-7, 5, 4);
    scene.add(fillLight);

    const rimLight = new THREE.DirectionalLight(0xffc96e, 0.8);
    rimLight.position.set(1, 4, -8);
    scene.add(rimLight);

    // -------------------------------------------------------------------------
    // Plain ground plane
    // -------------------------------------------------------------------------

    const ground = new THREE.Mesh(
      new THREE.PlaneGeometry(80, 80),
      new THREE.MeshStandardMaterial({
        color: 0x53624c,
        roughness: 1,
        metalness: 0
      })
    );

    ground.rotation.x = -Math.PI / 2;
    ground.position.y = -0.025;
    ground.receiveShadow = true;
    scene.add(ground);

    // -------------------------------------------------------------------------
    // Voxel construction
    //
    // Every visible part of the goblin is assembled from axis-aligned boxes.
    // Instanced rendering keeps the block count manageable while preserving
    // clear gaps, shadows, and individual cubic geometry.
    // -------------------------------------------------------------------------

    const model = new THREE.Group();
    model.rotation.y = -0.1;

    const voxels = [];

    function addVoxel(x, y, z, sx, sy, sz, color) {
      voxels.push({ x, y, z, sx, sy, sz, color });
    }

    const skin = 0x8b954e;
    const skinLight = 0x9da353;
    const skinDark = 0x747e3f;
    const earOuter = 0x68763d;
    const earInner = 0x9ca258;
    const leather = 0x4b2d20;
    const leatherDark = 0x2d1c17;
    const leatherTrim = 0x714633;
    const brass = 0xb88a3d;
    const clubWood = 0x764723;
    const clubLight = 0xb8773e;
    const clubDark = 0x57321b;
    const eyeBlack = 0x11150e;
    const eyeIris = 0xe0b847;
    const eyeGlint = 0xfff3b0;
    const hair = 0x263b2b;

    // Boots and feet.
    for (const side of [-1, 1]) {
      const x = side * 0.43;

      addVoxel(x, 0.13, 0.25, 0.48, 0.26, 0.58, clubDark);
      addVoxel(x, 0.29, 0.25, 0.42, 0.18, 0.54, leather);
      addVoxel(x, 0.40, 0.04, 0.23, 0.22, 0.50, skin);
      addVoxel(x, 0.40, 0.38, 0.23, 0.22, 0.20, skinLight);
      addVoxel(x - 0.10, 0.40, 0.42, 0.16, 0.16, 0.16, skin);
    }

    // Legs and hips.
    for (const side of [-1, 1]) {
      for (let y = 0.58; y <= 1.73; y += 0.23) {
        addVoxel(side * 0.36, y, 0.02, 0.22, 0.22, 0.24, skin);
      }

      addVoxel(side * 0.43, 1.78, 0, 0.34, 0.22, 0.38, skinDark);
    }

    // Torso: a 6 × 6 × 3 grid of visible skin blocks.
    for (let row = 0; row < 6; row++) {
      for (let column = 0; column < 6; column++) {
        for (let depth = 0; depth < 3; depth++) {
          addVoxel(
            -0.62 + column * 0.23,
            1.78 + row * 0.23,
            -0.34 + depth * 0.34,
            0.215,
            0.215,
            0.215,
            (row + column + depth) % 4 === 0
              ? skinDark
              : skin
          );
        }
      }
    }

    // Leather vest front and back.
    for (let row = 0; row < 5; row++) {
      for (let column = 0; column < 6; column++) {
        const x = -0.58 + column * 0.22;
        const y = 1.91 + row * 0.23;

        addVoxel(
          x,
          y,
          0.43,
          0.208,
          0.218,
          0.18,
          (row + column) % 3 === 0 ? leatherDark : leather
        );

        addVoxel(
          x,
          y,
          -0.43,
          0.208,
          0.218,
          0.18,
          (row + column + 1) % 3 === 0 ? leatherDark : leather
        );
      }
    }

    // Shoulder armor.
    for (const side of [-1, 1]) {
      addVoxel(side * 0.64, 3.12, 0, 0.30, 0.25, 0.44, leather);
      addVoxel(side * 0.64, 3.29, 0, 0.25, 0.12, 0.38, leatherDark);
    }

    // Necklace / neck block.
    addVoxel(0, 3.22, 0, 0.28, 0.18, 0.28, skinDark);
    addVoxel(0, 3.31, 0, 0.12, 0.055, 0.13, brass);

    // Arms.
    for (const side of [-1, 1]) {
      const armX = [0.65, 0.77, 0.89, 1.01, 1.13, 1.25];

      for (let i = 0; i < armX.length; i++) {
        addVoxel(
          side * armX[i],
          [2.90, 2.67, 2.44, 2.21, 1.98, 1.75][i],
          0.02,
          0.20,
          0.20,
          0.22,
          i === 0 ? skinLight : skin
        );
      }

      // Arm straps.
      addVoxel(side * 0.68, 2.78, 0.12, 0.25, 0.32, 0.22, leather);
      addVoxel(side * 0.68, 2.60, 0.12, 0.24, 0.08, 0.23, leatherDark);
    }

    // Hands.
    for (const x of [-1.12, -1.35, 1.12, 1.35]) {
      addVoxel(x, 1.90, 0.25, 0.20, 0.20, 0.22, skinLight);
      addVoxel(x, 2.14, 0.25, 0.20, 0.20, 0.22, skin);
      addVoxel(x, 1.80, 0.37, 0.14, 0.14, 0.14, skin);
    }

    // Chest belt and pouch.
    for (let i = 0; i < 7; i++) {
      addVoxel(
        -0.60 + i * 0.20,
        1.55,
        0.01,
        0.19,
        0.10,
        0.44,
        i % 2 === 0 ? leather : leatherDark
      );
    }

    addVoxel(0, 1.55, 0.28, 0.18, 0.18, 0.12, brass);
    addVoxel(0.34, 1.38, 0.38, 0.32, 0.28, 0.34, leatherDark);
    addVoxel(0.34, 1.38, 0.58, 0.24, 0.18, 0.08, leatherTrim);

    // Chest studs.
    for (const x of [-0.45, 0, 0.45]) {
      addVoxel(x, 2.68, 0.60, 0.09, 0.09, 0.08, brass);
    }

    // Horizontal chest strap.
    for (let i = 0; i < 7; i++) {
      addVoxel(
        -0.60 + i * 0.20,
        2.52,
        0.57,
        0.19,
        0.08,
        0.08,
        leatherDark
      );
    }

    // -------------------------------------------------------------------------
    // Head
    // -------------------------------------------------------------------------

    for (let row = 0; row < 4; row++) {
      for (let column = 0; column < 5; column++) {
        for (let depth = 0; depth < 3; depth++) {
          addVoxel(
            -0.52 + column * 0.23,
            3.62 + row * 0.23,
            -0.30 + depth * 0.33,
            0.215,
            0.215,
            0.215,
            (row + column + depth) % 5 === 0
              ? skinDark
              : skin
          );
        }
      }
    }

    // Forehead blocks give the face a chunky, readable silhouette.
    for (const x of [-0.42, -0.21, 0, 0.21, 0.42]) {
      addVoxel(x, 4.13, 0.34, 0.19, 0.19, 0.10, skinLight);
      addVoxel(x, 4.35, 0.34, 0.19, 0.19, 0.10, skin);
    }

    // Eyes, irises, and tiny highlights.
    for (const x of [-0.23, 0.23]) {
      addVoxel(x, 4.08, 0.43, 0.15, 0.15, 0.08, skinDark);
      addVoxel(x, 4.08, 0.49, 0.10, 0.10, 0.05, eyeBlack);
      addVoxel(x, 4.08, 0.535, 0.055, 0.055, 0.035, eyeIris);
      addVoxel(x, 4.08, 0.567, 0.025, 0.025, 0.02, eyeGlint);
    }

    // Eyebrows.
    for (const x of [-0.25, 0.25]) {
      addVoxel(x, 4.25, 0.44, 0.34, 0.08, 0.10, skinDark);
    }

    // Nose and mouth.
    addVoxel(0, 4.12, 0.48, 0.15, 0.16, 0.15, skinDark);
    addVoxel(0, 3.99, 0.53, 0.13, 0.12, 0.12, skin);
    addVoxel(0, 3.57, 0.47, 0.23, 0.07, 0.08, clubDark);
    addVoxel(-0.12, 3.43, 0.52, 0.08, 0.17, 0.08, clubLight);
    addVoxel(0.12, 3.43, 0.52, 0.08, 0.17, 0.08, clubLight);

    // -------------------------------------------------------------------------
    // Large pointed ears
    // -------------------------------------------------------------------------

    for (const side of [-1, 1]) {
      // Ear bases.
      addVoxel(side * 0.78, 3.48, -0.02, 0.25, 0.25, 0.22, earOuter);

      // Four columns and five rows create a tall, pointed silhouette.
      for (let column = 0; column < 5; column++) {
        const x = side * (0.96 + column * 0.18);

        for (let row = 0; row < 5; row++) {
          const y = 3.55 + row * 0.23;

          addVoxel(x, y, -0.02, 0.17, 0.21, 0.18, earOuter);

          // Inner ear panel on the visible/front side.
          addVoxel(
            side * (1.03 + column * 0.18),
            y,
            0.12,
            0.12,
            0.15,
            0.08,
            earInner
          );
        }
      }

      // Dark slit in the inner ear.
      addVoxel(side * 1.16, 4.18, 0.18, 0.045, 0.25, 0.035, eyeBlack);
    }

    // -------------------------------------------------------------------------
    // Spiked wooden club in the right hand
    // -------------------------------------------------------------------------

    // Handle.
    for (const x of [1.25, 1.48, 1.71]) {
      addVoxel(x, 2.12, 0.25, 0.22, 0.22, 0.24, clubWood);
    }

    // Club head.
    for (const x of [1.90, 2.13, 2.36]) {
      for (const y of [2.02, 2.25]) {
        addVoxel(x, y, 0.25, 0.22, 0.22, 0.24, clubLight);
      }
    }

    // Handle spikes.
    for (const x of [1.25, 1.48, 1.71]) {
      addVoxel(x, 2.12, 0.35, 0.08, 0.18, 0.18, clubLight);
    }

    // Head spikes pointing outward.
    for (const x of [2.56, 2.78, 2.99]) {
      addVoxel(x, 2.12, 0.25, 0.12, 0.22, 0.22, clubLight);
    }

    // Top and bottom spikes.
    for (const x of [2.13, 2.36]) {
      addVoxel(x, 1.90, 0.46, 0.16, 0.12, 0.12, clubLight);
      addVoxel(x, 2.34, 0.46, 0.16, 0.12, 0.12, clubLight);
    }

    // Front spike.
    addVoxel(2.13, 2.12, 0.55, 0.16, 0.16, 0.10, clubLight);

    // -------------------------------------------------------------------------
    // Convert all cubes into one efficient instanced mesh
    // -------------------------------------------------------------------------

    const voxelGeometry = new THREE.BoxGeometry(1, 1, 1);
    const voxelMaterial = new THREE.MeshStandardMaterial({
      color: 0xffffff,
      roughness: 0.86,
      metalness: 0,
      flatShading: true
    });

    const voxelMesh = new THREE.InstancedMesh(
      voxelGeometry,
      voxelMaterial,
      voxels.length
    );

    const matrix = new THREE.Matrix4();
    const position = new THREE.Vector3();
    const quaternion = new THREE.Quaternion();
    const scale = new THREE.Vector3();
    const color = new THREE.Color();

    voxels.forEach((voxel, index) => {
      position.set(voxel.x, voxel.y, voxel.z);
      scale.set(voxel.sx, voxel.sy, voxel.sz);
      matrix.compose(position, quaternion, scale);
      voxelMesh.setMatrixAt(index, matrix);
      voxelMesh.setColorAt(index, color.setHex(voxel.color));
    });

    voxelMesh.instanceMatrix.needsUpdate = true;
    if (voxelMesh.instanceColor) {
      voxelMesh.instanceColor.needsUpdate = true;
    }

    voxelMesh.castShadow = true;
    voxelMesh.receiveShadow = true;
    voxelMesh.frustumCulled = false;
    voxelMesh.computeBoundingSphere();

    model.add(voxelMesh);
    scene.add(model);

    // -------------------------------------------------------------------------
    // Custom mouse orbit controls — no external controls addon
    // -------------------------------------------------------------------------

    let dragging = false;
    let pointerId = null;
    let lastX = 0;
    let lastY = 0;

    const canvas = renderer.domElement;

    function resetView() {
      cameraView.theta = 0.72;
      cameraView.phi = 1.12;
      cameraView.radius = 12.6;
      updateCamera();
    }

    canvas.addEventListener("pointerdown", (event) => {
      if (event.button !== 0) return;

      dragging = true;
      pointerId = event.pointerId;
      lastX = event.clientX;
      lastY = event.clientY;
      canvas.setPointerCapture(pointerId);
    });

    canvas.addEventListener("pointermove", (event) => {
      if (!dragging || event.pointerId !== pointerId) return;

      const deltaX = event.clientX - lastX;
      const deltaY = event.clientY - lastY;

      lastX = event.clientX;
      lastY = event.clientY;

      cameraView.theta -= deltaX * 0.006;
      cameraView.phi = THREE.MathUtils.clamp(
        cameraView.phi - deltaY * 0.005,
        0.42,
        1.47
      );

      updateCamera();
    });

    function endDrag(event) {
      if (event.pointerId !== pointerId) return;

      dragging = false;

      if (canvas.hasPointerCapture(pointerId)) {
        canvas.releasePointerCapture(pointerId);
      }

      pointerId = null;
    }

    canvas.addEventListener("pointerup", endDrag);
    canvas.addEventListener("pointercancel", endDrag);

    canvas.addEventListener(
      "wheel",
      (event) => {
        event.preventDefault();

        cameraView.radius = THREE.MathUtils.clamp(
          cameraView.radius + event.deltaY * 0.008,
          7.5,
          20
        );

        updateCamera();
      },
      { passive: false }
    );

    canvas.addEventListener("dblclick", resetView);
    canvas.addEventListener("contextmenu", (event) => event.preventDefault());

    // -------------------------------------------------------------------------
    // Turntable and UI
    // -------------------------------------------------------------------------

    let paused = false;
    let lastTime = performance.now();

    function togglePause() {
      paused = !paused;
      pauseButton.textContent = paused ? "Resume rotation" : "Pause turntable";
    }

    pauseButton.addEventListener("click", togglePause);

    window.addEventListener("keydown", (event) => {
      if (event.code === "Space" && event.target === document.body) {
        event.preventDefault();
        togglePause();
      }
    });

    window.addEventListener("resize", () => {
      camera.aspect = window.innerWidth / window.innerHeight;
      camera.updateProjectionMatrix();
      renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
      renderer.setSize(window.innerWidth, window.innerHeight);
    });

    // -------------------------------------------------------------------------
    // Animation
    // -------------------------------------------------------------------------

    function animate(now) {
      requestAnimationFrame(animate);

      const delta = Math.min((now - lastTime) / 1000, 0.05);
      lastTime = now;

      if (!paused) {
        model.rotation.y += delta * 0.16;
      }

      renderer.render(scene, camera);
    }

    requestAnimationFrame(animate);
  </script>
</body>
</html>