ArcLake/simulator3.html at main · DART-Edge-AI/ArcLake · GitHub

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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>3JS Particle Simulator</title>
    <style>
        body { margin: 0; overflow: hidden; }
        canvas { display: block; }
        .controls {
            position: absolute;
            top: 10px;
            left: 10px;
            z-index: 100;
            background: rgba(0, 0, 0, 0.5);
            padding: 10px;
            border-radius: 8px;
            color: white;
        }
        .controls button, .controls select, .controls input {
            display: block;
            margin-bottom: 10px;
            background: #333;
            color: white;
            border: none;
            padding: 5px;
            border-radius: 5px;
        }
        .controls label {
            margin-bottom: 5px;
        }
    </style>
    <script src="https://cdn.jsdelivr.net/npm/three@0.128.0/build/three.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/controls/OrbitControls.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/exporters/GLTFExporter.js"></script>
</head>
<body>
    <div class="controls">
        <label for="particleCount">Particle Count:</label>
        <input type="number" id="particleCount" min="5000" max="5000000" value="5000">
        <label for="gravityStrength">Gravity Strength:</label>
        <input type="range" id="gravityStrength" min="0" max="10" value="1">
        <label for="particleColor">Particle Color:</label>
        <input type="color" id="particleColor" value="#ffffff">
        <button id="addGravityPointButton" onclick="toggleTool('gravity')">Add Gravity Point</button>
        <button id="addParticleSpawnButton" onclick="toggleTool('particle')">Add Particle Spawn Point</button>
        <label for="gravityIntensity">Gravity Intensity:</label>
        <input type="range" id="gravityIntensity" min="0" max="10" value="1">
        <label for="gravityVelocity">Velocity (m/s):</label>
        <input type="range" id="gravityVelocity" min="0" max="50" value="0">
        <label for="globalGravity">Global Gravity:</label>
        <input type="number" id="globalGravity" value="9.81">  <!-- Default gravity value on Earth in m/s^2 -->
        <button onclick="resetGravity()">Reset Gravity to Earth</button>
        <button onclick="clearParticles()">Clear Particles</button>
        <button onclick="exportSimulation()">Export Simulation</button>
    </div>
    <script>
        let scene, camera, renderer, particles = [], gravityPoints = [];
        let particleCount = 5000;
        let brushColor = 0xffffff;
        let globalGravity = 9.81;
        let currentTool = null;
        let controls;

        const clippingBounds = { x: 50, y: 50, z: 50 };  // Clipping bounds for the particles

        init();
        animate();

        function init() {
            // Scene setup
            scene = new THREE.Scene();
            camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
            camera.position.z = 5;

            renderer = new THREE.WebGLRenderer();
            renderer.setSize(window.innerWidth, window.innerHeight);
            document.body.appendChild(renderer.domElement);

            controls = new THREE.OrbitControls(camera, renderer.domElement);

            window.addEventListener('resize', onWindowResize, false);
            document.getElementById('gravityStrength').addEventListener('input', updateGravityStrength);
            document.getElementById('particleCount').addEventListener('input', updateParticleCount);
            document.getElementById('particleColor').addEventListener('input', updateParticleColor);
            document.getElementById('globalGravity').addEventListener('input', updateGlobalGravity);

            // Add event listeners for adding gravity points and particle spawn points
            document.addEventListener('mousedown', onMouseDown, false);
        }

        function animate() {
            requestAnimationFrame(animate);

            particles.forEach(p => {
                // Apply global gravity
                p.velocity.y -= globalGravity * 0.01;  // Adjust the multiplier as necessary for simulation scaling

                gravityPoints.forEach(g => {
                    const distance = g.mesh.position.distanceTo(p.position);
                    const force = g.mesh.position.clone().sub(p.position).normalize().multiplyScalar(g.intensity / distance);
                    p.velocity.add(force);
                });

                p.position.add(p.velocity);
                p.rotation.x += 0.01;
                p.rotation.y += 0.01;

                // Remove particles that exit the clipping bounds
                if (Math.abs(p.position.x) > clippingBounds.x ||
                    Math.abs(p.position.y) > clippingBounds.y ||
                    Math.abs(p.position.z) > clippingBounds.z) {
                    scene.remove(p);
                }
            });

            particles = particles.filter(p => scene.children.includes(p));  // Keep only particles that are still in the scene

            gravityPoints.forEach(g => {
                g.mesh.position.add(g.velocity);
            });

            controls.update();
            renderer.render(scene, camera);
        }

        function onWindowResize() {
            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();
            renderer.setSize(window.innerWidth, window.innerHeight);
        }

        function clearParticles() {
            particles.forEach(p => scene.remove(p));
            particles = [];
        }

        function exportSimulation() {
            const exporter = new THREE.GLTFExporter();
            exporter.parse(scene, function(result) {
                const output = JSON.stringify(result, null, 2);
                const blob = new Blob([output], {type: 'application/json'});
                const link = document.createElement('a');
                link.href = URL.createObjectURL(blob);
                link.download = 'simulation.json';
                link.click();
            });
        }

        function updateGravityStrength(event) {
            gravityStrength = event.target.value;
        }

        function updateParticleCount(event) {
            particleCount = event.target.value;
        }

        function updateParticleColor(event) {
            brushColor = parseInt(event.target.value.replace('#', ''), 16);
        }

        function updateGlobalGravity(event) {
            globalGravity = parseFloat(event.target.value);
        }

        function addGravityPoint(position, intensity, velocity) {
            const geometry = new THREE.SphereGeometry(0.2, 32, 32);
            const material = new THREE.MeshBasicMaterial({ color: 0xff0000 });
            const gravityPoint = new THREE.Mesh(geometry, material);
            gravityPoint.position.copy(position);
            scene.add(gravityPoint);
            gravityPoints.push({ mesh: gravityPoint, intensity: intensity, velocity: velocity });
        }

        function addParticleSpawnPoint(position, count, color) {
            const geometry = new THREE.SphereGeometry(0.1, 32, 32);
            const material = new THREE.MeshBasicMaterial({ color: color });

            for (let i = 0; i < count; i++) {
                const phi = Math.acos(2 * Math.random() - 1);
                const theta = 2 * Math.PI * Math.random();
                const distance = Math.random() * 0.2;
                const particle = new THREE.Mesh(geometry, material);
                particle.position.set(
                    position.x + distance * Math.sin(phi) * Math.cos(theta),
                    position.y + distance * Math.sin(phi) * Math.sin(theta),
                    position.z + distance * Math.cos(phi)
                );
                particle.velocity = new THREE.Vector3();
                scene.add(particle);
                particles.push(particle);
            }
        }

        function onMouseDown(event) {
            const rect = renderer.domElement.getBoundingClientRect();
            const mouse = new THREE.Vector2(
                ((event.clientX - rect.left) / rect.width) * 2 - 1,
                -((event.clientY - rect.top) / rect.height) * 2 + 1
            );

            const raycaster = new THREE.Raycaster();
            raycaster.setFromCamera(mouse, camera);

            const intersects = raycaster.intersectObjects(scene.children);
            if (intersects.length > 0) {
                const point = intersects[0].point;

                if (currentTool === 'gravity') {
                    const intensity = parseFloat(document.getElementById('gravityIntensity').value);
                    const velocityValue = parseFloat(document.getElementById('gravityVelocity').value);
                    const velocity = new THREE.Vector3(
                      (Math.random() - 0.5) * velocityValue,
                      (Math.random() - 0.5) * velocityValue,
                      (Math.random() - 0.5) * velocityValue
                    );
                    addGravityPoint(point, intensity, velocity);
                } else if (currentTool === 'particle') {
                    addParticleSpawnPoint(point, particleCount, brushColor);
                }
            }
        }

        function toggleTool(tool) {
            if (currentTool === tool)
            {
                // If the same tool is toggled again, turn it off
                currentTool = null;
                document.getElementById('addGravityPointButton').style.backgroundColor = '#333';
                document.getElementById('addParticleSpawnButton').style.backgroundColor = '#333';
            } else {
                // Toggle the new tool on and turn off the previous one
                currentTool = tool;
                document.getElementById('addGravityPointButton').style.backgroundColor = tool === 'gravity' ? '#0a0' : '#333';
                document.getElementById('addParticleSpawnButton').style.backgroundColor = tool === 'particle' ? '#0a0' : '#333';
            }
        }

        function resetGravity() {
            document.getElementById('globalGravity').value = 9.81;
            globalGravity = 9.81;
        }
    </script>
</body>
</html>