Particle-Simulation/spatial_index.html at master · Neeraj4002/Particle-Simulation · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Spatial Partitioning Sim (Instanced)</title>
    <style>
        body { margin: 0; overflow: hidden; font-family: sans-serif; background: #111; }
        #ui {
            position: absolute;
            top: 20px;
            left: 20px;
            color: white;
            pointer-events: auto;
            background: rgba(0, 0, 0, 0.5);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #333;
        }
        h1 { margin: 0 0 10px 0; font-size: 20px; color: #00aaff; }
        p { margin: 0; font-size: 14px; color: #ccc; }
        .controls { margin-top: 10px; display: flex; gap: 5px; flex-wrap: wrap; }
        button {
            background: #00aaff; color: #111; border: none; padding: 6px 12px;
            border-radius: 4px; cursor: pointer; font-weight: bold;
        }
        button:hover { background: #0088cc; }
    </style>
</head>
<body>
    <div id="ui">
        <h1>Hive Mind (Spatial Hash): <span id="status" style="color: #ffaa00;">Connecting...</span></h1>
        <p>Current Formation: <strong id="formationLabel">Sphere</strong></p>
        <p>Bot Count: <strong>1000</strong> (O(N) Complexity)</p>
        <div class="controls">
            <button onclick="setShape('sphere')">Sphere</button>
            <button onclick="setShape('wall')">Wall</button>
            <button onclick="setShape('ring')">Ring</button>
            <button onclick="setShape('cube')">Cube</button>
            <button onclick="setShape('rim')" style="background: #ff5500;">Wheel Rim</button>
            <button onclick="setShape('tokamak')" style="background: #aa00ff; color: white;">Tokamak</button>
            <button onclick="setShape('arc_reactor')" style="background: #00eeff; color: black;">Arc</button>
        </div>
        <div class="controls" style="margin-top: 8px;">
            <input type="text" id="textInput" placeholder="Word..." style="background: rgba(255,255,255,0.1); border: 1px solid #555; color: white; padding: 5px; border-radius: 4px; width: 100px;">
            <button onclick="sendText()" style="background: #00ff88; color: black;">Form Text</button>
        </div>
        <p style="margin-top: 10px;"><em>Drag to rotate | Scroll to zoom</em></p>
    </div>

    <script type="importmap">
        {
            "imports": {
                "three": "https://unpkg.com/three@0.160.0/build/three.module.js",
                "three/addons/": "https://unpkg.com/three@0.160.0/examples/jsm/"
            }
        }
    </script>
    <script type="module">
        import * as THREE from 'three';
        import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

        const scene = new THREE.Scene();
        scene.background = new THREE.Color(0x050510);
        scene.fog = new THREE.Fog(0x050510, 40, 150);

        const camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.1, 1000);
        camera.position.set(0, 15, 30); // Moved camera closer

        const renderer = new THREE.WebGLRenderer({ antialias: true, powerPreference: "high-performance" });
        renderer.setSize(window.innerWidth, window.innerHeight);
        document.body.appendChild(renderer.domElement);

        const controls = new OrbitControls(camera, renderer.domElement);
        controls.enableDamping = true;
        controls.dampingFactor = 0.05;
        controls.zoomSpeed = 2.0; // Make zooming much easier and twice as fast

        window.addEventListener('resize', () => {
            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();
            renderer.setSize(window.innerWidth, window.innerHeight);
        });

        const ambientLight = new THREE.AmbientLight(0xffffff, 0.4);
        scene.add(ambientLight);

        // Main white light
        const dirLight = new THREE.DirectionalLight(0xffffff, 1.5);
        dirLight.position.set(-10, 20, -10);
        scene.add(dirLight);

        // Blue ambient/fill light from the other side
        const dirLight2 = new THREE.DirectionalLight(0x0066ff, 1.5);
        dirLight2.position.set(10, 0, 10);
        scene.add(dirLight2);

        const gridHelper = new THREE.GridHelper(100, 100, 0x00ffff, 0x112233);
        gridHelper.position.y = -20;
        scene.add(gridHelper);

        // InstancedMesh for HIGH performance (rendering 2000 meshes in 1 draw call)
        const maxBots = 1000;
        // Square/Cube particles
        const geometry = new THREE.BoxGeometry(0.4, 0.4, 0.4);

        const material = new THREE.MeshStandardMaterial({
            color: 0xffffff, roughness: 0.2, metalness: 0.8, emissive: 0x222233
        });

        const instancedMesh = new THREE.InstancedMesh(geometry, material, maxBots);

        // Create an array buffer for per-instance color
        const colorArray = new Float32Array(maxBots * 3);
        const colorAttribute = new THREE.InstancedBufferAttribute(colorArray, 3);
        instancedMesh.instanceColor = colorAttribute;
        scene.add(instancedMesh);

        let targetPositions = Array.from({length: maxBots}, () => new THREE.Vector3(0, -20, 0));
        let currentPositions = Array.from({length: maxBots}, () => new THREE.Vector3(0, -20, 0));

        const dummy = new THREE.Object3D();
        const tmpColor = new THREE.Color();

        const ws = new WebSocket(`ws://${location.host}/ws`);
        const statusEl = document.getElementById('status');

        ws.onmessage = (event) => {
            const data = JSON.parse(event.data);
            if (data.positions) {
                for (let i = 0; i < data.positions.length && i < maxBots; i++) {
                    const pos = data.positions[i];
                    targetPositions[i].set(pos.x, pos.y, pos.z);
                }
            }
        };

        ws.onopen = () => {
            statusEl.innerText = "Connected";
            statusEl.style.color = "#00ffaa";
        };
        ws.onclose = () => {
            statusEl.innerText = "Disconnected";
            statusEl.style.color = "#ff4444";
        };

        window.setShape = function(shapeName) {
            fetch(`/set_shape/${shapeName}`)
                .then(res => res.json())
                .then(data => {
                    document.getElementById('formationLabel').innerText = data.shape.charAt(0).toUpperCase() + data.shape.slice(1);
                });
        };

        window.sendText = function() {
            const txt = document.getElementById('textInput').value || 'HELLO';
            fetch(`/set_text/${txt}`)
                .then(res => res.json())
                .then(data => {
                    document.getElementById('formationLabel').innerText = data.shape.charAt(0).toUpperCase() + data.shape.slice(1);
                });
        };

        function animate() {
            requestAnimationFrame(animate);
            controls.update();

            for (let i = 0; i < maxBots; i++) {
                currentPositions[i].lerp(targetPositions[i], 0.2);
                dummy.position.copy(currentPositions[i]);
                dummy.updateMatrix();
                instancedMesh.setMatrixAt(i, dummy.matrix);

                // Simple color logic: blue when flying, white when docked
                const dist = currentPositions[i].distanceTo(targetPositions[i]);

                if (dist > 1.0) {
                    tmpColor.setHex(0x0055ff);  // Blue when flying
                } else {
                    tmpColor.setHex(0xffffff);  // White when docked
                }
                tmpColor.toArray(colorArray, i * 3);
            }
            instancedMesh.instanceMatrix.needsUpdate = true;
            instancedMesh.instanceColor.needsUpdate = true;

            renderer.render(scene, camera);
        }
        animate();
    </script>
</body>
</html>