Aquarium breach · gemma-4-26b-a4b-it
Create a large glass aquarium whose side panel develops a visible crack and then bursts. The simulation must include: - Water escaping through the opening with flow strength based on water depth and decreasing as the tank drains - A curved water jet affected by gravity - A spreading puddle that collides with the room boundaries - Fish, rocks, plants, and a floating toy reacting differently according to density, buoyancy, drag, and current - Objects transitioning correctly from underwater motion to airborne motion and then to floor collisions - Fish attempting to swim against the current before being swept through the breach - Glass fragments with angular velocity, collisions, and water resistance - A visible waterline that lowers continuously rather than disappearing all at once Let the user drag the crack vertically before triggering the failure. A lower crack should initially produce a stronger jet than a higher crack. Give me 1 html file
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Create a large glass aquarium whose side panel develops a visible crack and then bursts. The simulation must include: - Water escaping through the opening with flow strength based on water depth and decreasing as the tank drains - A curved water jet affected by gravity - A spreading puddle that collides with the room boundaries - Fish, rocks, plants, and a floating toy reacting differently according to density, buoyancy, drag, and current - Objects transitioning correctly from underwater motion to airborne motion and then to floor collisions - Fish attempting to swim against the current before being swept through the breach - Glass fragments with angular velocity, collisions, and water resistance - A visible waterline that lowers continuously rather than disappearing all at once Let the user drag the crack vertically before triggering the failure. A lower crack should initially produce a stronger jet than a higher crack. Give me 1 html file
thinking
The objective is to create a single-file web application (`index.html`) that simulates a large glass aquarium cracking and bursting.
* Physics: Gravity, buoyancy, drag, fluid flow, collisions (walls, floor, objects, glass), angular velocity for fragments.
* Water:
* Volume/Depth management.
* Waterline lowering.
* Jet: Curved jet from the crack, strength based on depth (Torricelli's law approximation: $v = \sqrt{2gh}$), decreasing as water level drops.
* Puddle: Spreading water on the floor, bounded by room.
* Objects:
* Fish: Swim (seek target/swim against current), buoyancy, drag, swept by current.
* Rocks/Plants: Heavy/Anchored vs Floating/Light, reaction to current.
* Floating Toy: High buoyancy.
* Transition: Water $\to$ Air $\to$ Floor.
* Glass: Fragments with angular velocity, collision with objects/water.
* Interaction: User drags crack vertically, then trigger burst.
* Language: HTML5, CSS, JavaScript.
* Rendering: HTML5 Canvas API (2D is sufficient and easier for a single file, but 3D might be cooler. Given the complexity and the requirement for a single file, a high-quality 2D simulation using a particle system for water and a rigid body engine for objects might be best. Let's aim for a pseudo-3D or highly polished 2D side view).
* Actually, a side-view 2D simulation is much more controllable for a single file and allows for clear physics representation of the "waterline" and "jet".
* `World`: Manages time, gravity, and global state.
* `WaterSystem`: Manages water level, particle-based or volume-based water flow, jet creation, and the puddle.
* `PhysicsEngine`: Handles collisions, buoyancy, and movement.
* `Entities`:
* `Fish`: AI (swim) + Physics.
* `Debris/Glass`: Physics + Rotation.
* `Environment`: Aquarium walls, Floor, Crack.
* *Water:* Instead of a full SPH (Smoothed Particle Hydrodynamics) which is heavy for a single JS file, I'll use a "Level" approach for the tank and a "Particle" approach for the jet and puddle.
* *Jet:* Particles emitted from the crack with velocity proportional to $\sqrt{\text{depth}}$.
* *Puddle:* Particles on the floor that spread and merge.
* *Physics:* Verlet integration or simple Euler for position/velocity.
* Tank: A rectangle.
* Water: A rectangle filled with a color, top edge is the `waterLevel`.
* Crack: A line/slit.
* Particles: Small circles or squares for water jet and puddle.
* *Fish AI:* Fish wants to stay at a certain depth but if the current (velocity at their position) is too strong, they are pushed.
* *Buoyancy:* $F_{buoyancy} = \rho \cdot V_{submerged} \cdot g$.
* *Drag:* $F_{drag} = -k \cdot v$.
* *Setup:* Canvas, full screen.
* *Classes:* `Vector`, `Particle`, `WaterJetParticle`, `PuddleParticle`, `Entity` (Base), `Fish`, `Rock`, `Plant`, `Toy`, `GlassFragment`.
* *Simulation Loop:*
1. Update Physics (Gravity, Drag, Buoyancy).
2. Handle Collisions.
3. Update Water (Level, Jet particles, Puddle particles).
4. Render.
* *Water Jet:* The crack position $y_c$. Depth $h = \text{waterLevel} - y_c$. Velocity $v = \text{scale} \cdot \sqrt{h}$.
* *Transitioning:* If an object's $y > \text{waterLevel}$, buoyancy $\approx 0$. If $y < \text{waterLevel}$, buoyancy is active.
* *Glass:* When it bursts, create `GlassFragment` objects with high angular velocity.
* *Puddle:* Needs to "flow" along the floor.
* Since I need to write it *all* into `index.html`, I will structure it as:
```html
<!DOCTYPE html>
<html>
<head><style>...</style></head>
<body><canvas></canvas><script>...</script></body>
</html>
```
* *Water Depth:* `waterLevel` decreases over time based on the number of jet particles emitted.
* *Jet:* Emitting particles at the crack.
* *Puddle:* Particles that hit the floor and move horizontally.
* *Fish:* Simple "target" movement.
* *Crack:* Draggable via mouse/touch.
* *Refinement on Physics:*
To make it look good, I'll use a "particle" based approach for the water escaping, and a "level" approach for the main volume.
* *Complexity Check:*
- Fish swimming against current: Check if particle density or a "current vector" at fish position exceeds a threshold.
- Glass fragments: Angular velocity $\omega$, collision with floor.
* Let's get coding.```html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Aquarium Burst Simulation</title> <style> body { margin: 0; overflow: hidden; background-color: #111; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: white; user-select: none; } canvas { display: block; } #ui { position: absolute; top: 20px; left: 20px; pointer-events: none; text-shadow: 1px 1px 2px black; } .instruction { font-size: 18px; background: rgba(0, 0, 0, 0.5); padding: 10px 20px; border-radius: 8px; } #reset-btn { position: absolute; bottom: 20px; right: 20px; padding: 12px 24px; background: #3498db; color: white; border: none; border-radius: 5px; cursor: pointer; font-size: 16px; pointer-events: auto; transition: background 0.2s; } #reset-btn:hover { background: #2980b9; } </style> </head> <body> <div id="ui"> <div class="instruction" id="msg">Drag the crack vertically, then click to BURST!</div> </div> <button id="reset-btn" onclick="resetSimulation()">Reset Simulation</button> <canvas id="canvas"></canvas> <script> /** * AQUARIUM BURST SIMULATION * * Physics engine implementation: * - Verlet-like integration for particles and objects * - Buoyancy calculated based on submerged volume * - Water jet based on Torricelli's Law * - Puddle spreading via particle expansion */ const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); const msgEl = document.getElementById('msg'); let width, height; let simulationRunning = false; let burstTriggered = false; // Simulation Constants const GRAVITY = 0.25; const WATER_DENSITY = 1.2; const AIR_DENSITY = 0.05; const DRAG_COEFF = 0.02; // Aquarium Config const tank = { x: 0, y: 0, w: 0, h: 0, waterLevel: 0, crackY: 0, crackSize: 15, isBursting: false, waterVolume: 0 }; let particles = []; // Jet and Puddle particles let entities = []; // Fish, Rocks, Plants, Toy, Glass let mouse = { x: 0, y: 0, isDown: false }; class Vector { constructor(x, y) { this.x = x; this.y = y; } add(v) { this.x += v.x; this.y += v.y; return this; } sub(v) { this.x -= v.x; this.y -= v.y; return this; } mult(n) { this.x *= n; this.y *= n; return this; } mag() { return Math.sqrt(this.x * this.x + this.y * this.y); } normalize() { const m = this.mag(); if (m !== 0) this.mult(1/m); return this; } copy() { return new Vector(this.x, this.y); } } class Particle { constructor(x, y, vx, vy, type) { this.pos = new Vector(x, y); this.vel = new Vector(vx, vy); this.type = type; // 'jet' or 'puddle' this.life = 1.0; this.size = type === 'jet' ? 4 : 3; this.color = type === 'jet' ? 'rgba(100, 180, 255, 0.6)' : 'rgba(50, 120, 200, 0.4)'; } update() { this.vel.y += GRAVITY * 0.5; this.pos.add(this.vel); if (this.type === 'puddle') { // Puddle friction and spreading this.vel.x *= 0.95; this.vel.y *= 0.9; // Floor collision if (this.pos.y > height - 20) { this.pos.y = height - 20; this.vel.y *= -0.1; // Spread horizontally this.vel.x += (Math.random() - 0.5) * 0.5; } // Boundary collision if (this.pos.x < 0 || this.pos.x > width) this.vel.x *= -0.5; } else { // Jet particle physics if (this.pos.y > height - 20) { this.type = 'puddle'; // Transition to puddle this.vel.y *= -0.2; } } } draw() { ctx.fillStyle = this.color; ctx.beginPath(); ctx.arc(this.pos.x, this.pos.y, this.size, 0, Math.PI * 2); ctx.fill(); } } class Entity { constructor(x, y, radius, mass, density, color) { this.pos = new Vector(x, y); this.vel = new Vector(0, 0); this.angle = 0; this.angularVel = 0; this.radius = radius; this.mass = mass; this.density = density; // density relative to water this.color = color; this.submerged = false; } update() { // Gravity this.vel.y += GRAVITY * (this.mass / 10); // Buoyancy and Drag const isUnderWater = this.pos.y < tank.waterLevel && this.pos.x > tank.x && this.pos.x < tank.x + tank.w; this.submerged = isUnderWater; if (this.submerged) { // Buoyancy: upward force const buoyancy = (WATER_DENSITY / this.density) * GRAVITY * (this.mass / 10); this.vel.y -= buoyancy * 0.1; // Water drag this.vel.mult(0.95); // Angular drag this.angularVel *= 0.92; } else { // Air drag this.vel.mult(0.99); this.angularVel *= 0.98; } // Apply velocity this.pos.add(this.vel); // Floor collision if (this.pos.y + this.radius > height - 20) { this.pos.y = height - 20 - this.radius; this.vel.y *= -0.3; this.vel.x *= 0.7; this.angularVel *= 0.5; } // Tank walls (if not burst) if (!burstTriggered) { if (this.pos.x - this.radius < tank.x) { this.pos.x = tank.x + this.radius; this.vel.x *= -0.5; } if (this.pos.x + this.radius > tank.x + tank.w) { this.pos.x = tank.x + tank.w - this.radius; this.vel.x *= -0.5; } if (this.pos.y - this.radius < tank.y) { this.pos.y = tank.y + this.radius; this.vel.y *= -0.5; } } else { // If burst, fish can fly out if (this.pos.x < 0 || this.pos.x > width) this.vel.x *= -0.5; } } draw() { ctx.save(); ctx.translate(this.pos.x, this.pos.y); ctx.rotate(this.angle); ctx.fillStyle = this.color; // Simple shape drawing based on type if (this.type === 'fish') { ctx.beginPath(); ctx.ellipse(0, 0, this.radius * 1.5, this.radius, 0, 0, Math.PI * 2); ctx.fill(); // Tail ctx.beginPath(); ctx.moveTo(-this.radius, 0); ctx.lineTo(-this.radius * 2, -this.radius); ctx.lineTo(-this.radius * 2, this.radius); ctx.closePath(); ctx.fill(); // Eye ctx.fillStyle = 'white'; ctx.beginPath(); ctx.arc(this.radius * 0.8, -this.radius * 0.3, this.radius * 0.3, 0, Math.PI * 2); ctx.fill(); } else if (this.type === 'rock') { ctx.beginPath(); for(let i=0; i<6; i++) { const ang = (i/6) * Math.PI * 2; const r = this.radius * (0.8 + Math.random() * 0.4); const px = Math.cos(ang) * r; const py = Math.sin(ang) * r; if(i===0) ctx.moveTo(px, py); else ctx.lineTo(px, py); } ctx.closePath(); ctx.fill(); } else if (this.type === 'plant') { ctx.strokeStyle = this.color; ctx.lineWidth = 4; ctx.beginPath(); ctx.moveTo(0, 0); ctx.quadraticCurveTo(10, -this.radius, 0, -this.radius * 2); ctx.stroke(); } else if (this.type === 'toy') { ctx.beginPath(); ctx.arc(0, 0, this.radius, 0, Math.PI * 2); ctx.fill(); ctx.strokeStyle = 'white'; ctx.lineWidth = 2; ctx.stroke(); } else if (this.type === 'glass') { ctx.beginPath(); ctx.moveTo(-this.radius, -this.radius); ctx.lineTo(this.radius, -this.radius * 0.5); ctx.lineTo(this.radius * 0.5, this.radius); ctx.lineTo(-this.radius * 0.8, this.radius * 0.2); ctx.closePath(); ctx.fill(); } ctx.restore(); } } class Fish extends Entity { constructor(x, y) { super(x, y, 10, 2, 0.5, '#ff7f50'); this.type = 'fish'; this.targetY = y; this.swimTimer = 0; } update() { super.update(); if (this.submerged) { this.swimTimer += 0.05; // AI: Swim towards target or against current if (Math.random() < 0.02) this.targetY = tank.y + Math.random() * (tank.waterLevel - tank.y); // Gentle wandering this.vel.y += Math.sin(this.swimTimer) * 0.05; // If burst and current is high, fish gets swept if (burstTriggered && this.pos.x < tank.x + tank.w && this.pos.x > tank.x) { // Check if fish is near the crack if (Math.abs(this.pos.y - tank.crackY) < 50) { this.vel.x -= 0.5; // Swept out } } } // Simple orientation if (Math.abs(this.vel.x) > 0.1 || Math.abs(this.vel.y) > 0.1) { this.angle = Math.atan2(this.vel.y, this.vel.x); } } } function init() { width = canvas.width = window.innerWidth; height = canvas.height = window.innerHeight; tank.w = Math.min(width * 0.8, 600); tank.h = Math.min(height * 0.7, 500); tank.x = (width - tank.w) / 2; tank.y = (height - tank.h) / 2; tank.waterLevel = tank.y + tank.h * 0.8; tank.crackY = tank.y + tank.h * 0.5; tank.isBursting = false; tank.waterVolume = 1.0; particles = []; entities = []; burstTriggered = false; simulationRunning = true; // Populate aquarium // Plants (anchored-ish) for(let i=0; i<5; i++) { let p = new Entity(tank.x + 50 + i*100, tank.y + tank.h, 15, 1, 2, '#2ecc71'); p.type = 'plant'; entities.push(p); } // Rocks for(let i=0; i<4; i++) { entities.push(new Entity(tank.x + Math.random()*tank.w, tank.y + tank.h - 10, 20 + Math.random()*20, 10, 2.5, '#7f8c8d')); entities[entities.length-1].type = 'rock'; } // Toy entities.push(new Entity(tank.x + tank.w/2, tank.y + tank.h/2, 15, 1, 0.4, '#f1c40f')); entities[entities.length-1].type = 'toy'; // Fish for(let i=0; i<6; i++) { entities.push(new Fish(tank.x + Math.random()*tank.w, tank.y + Math.random()*tank.h)); } } function resetSimulation() { init(); msgEl.innerText = "Drag the crack vertically, then click to BURST!"; } function triggerBurst() { if (burstTriggered) return; burstTriggered = true; tank.isBursting = true; msgEl.innerText = "OH NO!!!"; // Create glass fragments for(let i=0; i<20; i++) { let f = new Entity(tank.x + tank.w/2, tank.crackY, 5 + Math.random()*10, 5, 2.5, 'rgba(200, 230, 255, 0.8)'); f.type = 'glass'; f.pos.x = tank.x + tank.w/2 + (Math.random()-0.5)*20; f.pos.y = tank.crackY + (Math.random()-0.5)*10; f.vel.x = (Math.random() - 0.5) * 15; f.vel.y = (Math.random() - 0.5) * 15; f.angularVel = (Math.random() - 0.5) * 0.5; entities.push(f); } } function update() { if (!simulationRunning) return; // Handle Water Level if (burstTriggered) { const depth = Math.max(0, tank.waterLevel - tank.crackY); if (depth > 0) { // Torricelli's Law: v = sqrt(2gh) const jetVelocity = Math.sqrt(2 * GRAVITY * depth) * 2; // Emit jet particles for(let i=0; i<3; i++) { // Emitting from the center of the crack towards the right particles.push(new Particle( tank.x + tank.w, tank.crackY, -jetVelocity * 1.5, (Math.random() - 0.5) * 2, 'jet' )); } // Drain water level tank.waterLevel -= 0.15; } if (tank.waterLevel < tank.y) tank.waterLevel = tank.y; } // Update Particles for (let i = particles.length - 1; i >= 0; i--) { particles[i].update(); // Remove old/out of bounds particles if (particles[i].pos.y > height || particles[i].pos.x > width || (particles[i].type === 'jet' && particles[i].pos.x < tank.x)) { particles.splice(i, 1); } } // Update Entities for (let entity of entities) { entity.update(); } // Fish/Entity interaction with current if (burstTriggered) { // Simulating a "current" force near the crack const depth = Math.max(0, tank.waterLevel - tank.crackY); if (depth > 0) { for (let entity of entities) { if (entity.submerged && Math.abs(entity.pos.y - tank.crackY) < 40) { // Apply current force entity.vel.x -= 0.2; } } } } } function draw() { // Clear background ctx.fillStyle = '#111'; ctx.fillRect(0, 0, width, height); // Draw Floor ctx.fillStyle = '#333'; ctx.fillRect(0, height - 20, width, 20); // Draw Aquarium Tank ctx.strokeStyle = 'rgba(255,255,255,0.3)'; ctx.lineWidth = 5; ctx.strokeRect(tank.x, tank.y, tank.w, tank.h); // Draw Water if (tank.waterLevel > tank.y) { ctx.fillStyle = 'rgba(0, 150, 255, 0.4)'; ctx.fillRect(tank.x, tank.waterLevel, tank.w, tank.y + tank.h - tank.waterLevel); // Water surface line ctx.strokeStyle = 'rgba(255, 255, 255, 0.5)'; ctx.lineWidth = 2; ctx.beginPath(); ctx.moveTo(tank.x, tank.waterLevel); ctx.lineTo(tank.x + tank.w, tank.waterLevel); ctx.stroke(); } // Draw Crack if (!burstTriggered) { ctx.strokeStyle = 'rgba(255, 255, 255, 0.8)'; ctx.lineWidth = 2; ctx.beginPath(); ctx.moveTo(tank.x + tank.w - 5, tank.crackY - tank.crackSize/2); ctx.lineTo(tank.x + tank.w + 5, tank.crackY + tank.crackSize/2); ctx.stroke(); } else { // Draw the hole after burst ctx.fillStyle = '#111'; ctx.beginPath(); ctx.rect(tank.x + tank.w - 10, tank.crackY - tank.crackSize, 20, tank.crackSize * 2); ctx.fill(); } // Draw Entities for (let entity of entities) { entity.draw(); } // Draw Particles for (let particle of particles) { particle.draw(); } requestAnimationFrame(() => { update(); draw(); }); } // Input Handlers window.addEventListener('mousedown', (e) => { mouse.isDown = true; mouse.x = e.clientX; mouse.y = e.clientY; // Check if clicking near the crack to burst if (!burstTriggered) { const distToCrack = Math.abs(mouse.y - tank.crackY); if (mouse.x > tank.x + tank.w - 50 && distToCrack < 50) { triggerBurst(); } } }); window.addEventListener('mousemove', (e) => { mouse.x = e.clientX; mouse.y = e.clientY; // Dragging the crack if (mouse.isDown && !burstTriggered) { // Only drag if mouse is near the right edge of tank if (mouse.x > tank.x + tank.w - 50) { tank.crackY = Math.max(tank.y + 20, Math.min(tank.y + tank.h - 20, mouse.y)); } } }); window.addEventListener('mouseup', () => { mouse.isDown = false; }); window.addEventListener('resize', () => { width = canvas.width = window.innerWidth; height = canvas.height = window.innerHeight; // Re-center tank logic would go here, but init() is easier for a reset }); // Start the loop init(); draw(); </script> </body> </html> ```
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