Aquarium breach · gemma-4-31b-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 user wants a complex physics simulation of a glass aquarium bursting.
Key requirements:
1. **Single file `index.html`**: CSS, JS, HTML all in one. No external assets.
2. **Water Simulation**:
* Water escaping through a crack.
* Flow strength based on depth (Torricelli's law: $v = \sqrt{2gh}$).
* Curved water jet (projectile motion).
* Spreading puddle with boundary collisions.
* Waterline lowering over time.
3. **Object Simulation**:
* Fish, rocks, plants, floating toy.
* Physics properties: density, buoyancy, drag, current.
* Transition from underwater $\rightarrow$ air $\rightarrow$ floor.
* Fish trying to swim against the current.
4. **Glass Failure**:
* User can drag the crack position vertically.
* Glass fragments with angular velocity, collisions, and water resistance.
5. **Visuals**:
* Glass aquarium, interior contents.
* Crack and burst effects.
* Since I cannot use a heavy physics engine (no external JS), I'll need a custom lightweight 2D physics engine.
* **Water**:
* The "water" inside the tank can be a rectangle with a height that decreases.
* The "jet" can be represented by a particle system. Particles emitted from the crack point.
* The "puddle" can be a set of particles or a growing shape on the floor.
* **Objects**:
* Circular/Rectangular bodies with mass, velocity, position.
* Buoyancy force: $F_b = \rho \cdot g \cdot V_{displaced}$.
* Drag: $F_d = -k \cdot v$.
* Fish AI: Simple steering behavior to move towards the center/away from the leak until swept.
* **Glass**:
* The front panel is a rectangle. When it bursts, it breaks into a few polygons/rectangles.
* **Coordinate System**:
* 2D Top-down or Side-view? The prompt says "side panel develops a crack", "water jet affected by gravity", "puddle that collides with room boundaries". This implies a **Side-view** (cross-section).
* `CanvasRenderingContext2D` for drawing.
* Particle system for the water jet.
* Rigid body simulation for fish, rocks, toy, and glass shards.
* State machine: `SETUP` $\rightarrow$ `CRACKING` $\rightarrow$ `BURSTING` $\rightarrow$ `DRAINING`.
* `crackY`: Current vertical position of the crack.
* `tankWaterLevel`: Current height of water in the tank.
* `isBurst`: Boolean.
* `particles`: Array of water particles.
* `objects`: Array of physical objects.
* Flow rate $Q \propto \sqrt{h - crackY}$.
* Particle emission rate and initial velocity based on $Q$.
* Particles follow $x(t) = v_x t$ and $y(t) = v_y t + 0.5 g t^2$.
* When particles hit the floor, they add to the puddle size or become "puddle particles".
* Underwater:
* Gravity: $g_{eff} = g \cdot (1 - \text{buoyancy})$.
* Drag: High.
* Current: Force directed from object position towards the crack.
* Air:
* Gravity: $g$.
* Drag: Low.
* Collision: Basic floor/wall bounce.
* Draw the tank.
* Draw the water (blue semi-transparent).
* Draw the crack (jagged line).
* Draw the objects.
* Draw the water jet particles.
* Draw the puddle.
* User can move a slider or drag a handle to set the crack height.
* Angular velocity for shards.
* Collision with floor.
Let's start 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; padding: 0; overflow: hidden; background-color: #1a1a1a; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: white; user-select: none; } canvas { display: block; } #ui { position: absolute; top: 20px; left: 20px; background: rgba(0, 0, 0, 0.7); padding: 20px; border-radius: 10px; border: 1px solid #444; pointer-events: auto; max-width: 300px; } .instruction { font-size: 14px; margin-bottom: 15px; color: #ccc; } button { background: #e74c3c; color: white; border: none; padding: 10px 20px; font-size: 16px; cursor: pointer; border-radius: 5px; width: 100%; transition: background 0.2s; } button:hover { background: #c0392b; } button:disabled { background: #555; cursor: not-allowed; } .status { margin-top: 10px; font-style: italic; font-size: 12px; text-align: center; } </style> </head> <body> <div id="ui"> <div class="instruction"> 1. <b>Drag the crack</b> vertically on the tank side. <br> 2. <b>Click "Burst Tank"</b> to trigger the failure. <br> <small>(Lower cracks create stronger initial pressure)</small> </div> <button id="burstBtn">Burst Tank</button> <div class="status" id="statusText">Ready</div> </div> <canvas id="canvas"></canvas> <script> /** * AQUARIUM BURST SIMULATION * A custom 2D physics simulation implementing: * - Torricelli's Law for water flow * - Buoyancy and Drag forces * - Particle-based water jets and puddles * - Rigid body transitions (water -> air -> floor) */ const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); const burstBtn = document.getElementById('burstBtn'); const statusText = document.getElementById('statusText'); let width, height; let isBurst = false; let isDraggingCrack = false; // Simulation Constants const GRAVITY = 0.25; const WATER_DENSITY = 1.0; const AIR_DRAG = 0.99; const WATER_DRAG = 0.92; const WATER_COLOR = 'rgba(0, 150, 255, 0.6)'; const PUDDLE_COLOR = 'rgba(0, 100, 200, 0.4)'; // Tank Config const tank = { x: 0, y: 0, w: 400, h: 300, waterLevel: 280, // relative to bottom crackX: 0, // relative to tank.x crackY: 150, // relative to tank.y (top is 0) bottomY: 0 // absolute floor Y }; // Object Classes class PhysicalObject { constructor(x, y, radius, mass, density, color, type = 'generic') { this.x = x; this.y = y; this.vx = 0; this.vy = 0; this.radius = radius; this.mass = mass; this.density = density; // Relative to water (1.0) this.color = color; this.type = type; this.angle = Math.random() * Math.PI * 2; this.va = 0; // angular velocity this.isFloating = density < 1.0; } update() { const inWater = this.y < tank.bottomY && this.y > (tank.bottomY - tank.waterLevel); const isOutsideTank = this.x < tank.x || this.x > tank.x + tank.w; // Apply Forces if (inWater && !isOutsideTank) { // Buoyancy: F = rho * g * V const buoyancy = GRAVITY * (1.0 - this.density) * 1.2; this.vy -= buoyancy; // Drag this.vx *= WATER_DRAG; this.vy *= WATER_DRAG; // Current: suck towards the crack if burst if (isBurst) { const dx = (tank.x + tank.w) - this.x; // assuming crack is on right side for simplicity in this view, // but we'll make it flexible. Let's assume crack is on the right side of the glass. const dy = (tank.y + tank.crackY) - this.y; const dist = Math.sqrt(dx*dx + dy*dy); const force = 0.05 * (tank.waterLevel / 300); this.vx += (dx / dist) * force; this.vy += (dy / dist) * force; } } else { this.vy += GRAVITY; this.vx *= AIR_DRAG; this.vy *= AIR_DRAG; } // Fish AI: try to swim away from the crack if (this.type === 'fish' && inWater && !isOutsideTank) { const distToCrack = Math.sqrt(Math.pow((tank.x + tank.w) - this.x, 2) + Math.pow((tank.y + tank.crackY) - this.y, 2)); if (distToCrack < 150) { this.vx -= (tank.x + tank.w - this.x) * 0.001; this.vy -= (tank.y + tank.crackY - this.y) * 0.001; } // Gentle wandering this.vx += (Math.random() - 0.5) * 0.1; this.vy += (Math.random() - 0.5) * 0.1; } this.x += this.vx; this.y += this.vy; this.angle += this.va; // Floor Collision if (this.y + this.radius > tank.bottomY) { this.y = tank.bottomY - this.radius; this.vy *= -0.3; this.vx *= 0.9; this.va *= 0.9; } // Wall Collision if (this.x - this.radius < 0) { this.x = this.radius; this.vx *= -0.5; } if (this.x + this.radius > width) { this.x = width - this.radius; this.vx *= -0.5; } } draw() { ctx.save(); ctx.translate(this.x, this.y); ctx.rotate(this.angle); ctx.fillStyle = this.color; 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(); } else if (this.type === 'rock') { ctx.beginPath(); ctx.moveTo(-this.radius, -this.radius/2); ctx.lineTo(0, -this.radius); ctx.lineTo(this.radius, -this.radius/4); ctx.lineTo(this.radius/2, this.radius); ctx.lineTo(-this.radius/2, this.radius/2); ctx.closePath(); ctx.fill(); } else { ctx.beginPath(); ctx.arc(0, 0, this.radius, 0, Math.PI * 2); ctx.fill(); } ctx.restore(); } } class GlassShard extends PhysicalObject { constructor(x, y, w, h) { super(x, y, Math.max(w, h)/2, 1, 2.5, 'rgba(200, 230, 255, 0.5)', 'shard'); this.w = w; this.h = h; this.vx = 2 + Math.random() * 5; this.vy = (Math.random() - 0.5) * 4; this.va = (Math.random() - 0.5) * 0.2; } draw() { ctx.save(); ctx.translate(this.x, this.y); ctx.rotate(this.angle); ctx.fillStyle = this.color; ctx.strokeStyle = 'white'; ctx.lineWidth = 1; ctx.beginPath(); ctx.rect(-this.w/2, -this.h/2, this.w, this.h); ctx.fill(); ctx.stroke(); ctx.restore(); } } class WaterParticle { constructor(x, y, vx, vy) { this.x = x; this.y = y; this.vx = vx; this.vy = vy; this.life = 1.0; this.isPuddle = false; } update() { if (!this.isPuddle) { this.vy += GRAVITY; this.x += this.vx; this.y += this.vy; if (this.y >= tank.bottomY) { this.y = tank.bottomY; this.isPuddle = true; this.vx *= 0.5; } } else { // Spread on floor this.x += this.vx; this.vx *= 0.95; if (this.x < 0 || this.x > width) this.vx *= -1; } this.life -= 0.002; } draw() { ctx.fillStyle = this.isPuddle ? PUDDLE_COLOR : WATER_COLOR; ctx.beginPath(); ctx.arc(this.x, this.y, this.isPuddle ? 3 : 2, 0, Math.PI * 2); ctx.fill(); } } // World State let objects = []; let shards = []; let particles = []; let puddleRadius = 0; function init() { resize(); // Setup Tank position tank.x = width / 2 - tank.w / 2; tank.y = height - tank.h - 100; tank.bottomY = height - 100; tank.crackX = tank.w; // Crack on the right panel // Populate Tank // Rocks for(let i=0; i<5; i++) { objects.push(new PhysicalObject( tank.x + 50 + Math.random() * (tank.w - 100), tank.bottomY - 20, 10 + Math.random() * 15, 1, 2.0, '#777', 'rock' )); } // Plants (simplified as floating objects with neutral density) for(let i=0; i<3; i++) { objects.push(new PhysicalObject( tank.x + 50 + Math.random() * (tank.w - 100), tank.bottomY - 50, 8, 0.5, 1.0, '#2ecc71', 'plant' )); } // Fish for(let i=0; i<6; i++) { objects.push(new PhysicalObject( tank.x + 50 + Math.random() * (tank.w - 100), tank.y + 50 + Math.random() * (tank.h - 100), 5, 0.2, 0.9, '#f1c40f', 'fish' )); } // Toy objects.push(new PhysicalObject( tank.x + tank.w / 2, tank.y + 50, 12, 0.3, 0.6, '#e74c3c', 'toy' )); } function resize() { width = window.innerWidth; height = window.innerHeight; canvas.width = width; canvas.height = height; } window.addEventListener('resize', () => { resize(); tank.x = width / 2 - tank.w / 2; tank.y = height - tank.h - 100; tank.bottomY = height - 100; }); // Interaction canvas.addEventListener('mousedown', (e) => { const rect = canvas.getBoundingClientRect(); const mx = e.clientX - rect.left; const my = e.clientY - rect.top; // Check if clicking near the right edge of the tank in the crack zone if (mx > tank.x + tank.w - 20 && mx < tank.x + tank.w + 20 && my > tank.y && my < tank.y + tank.h) { isDraggingCrack = true; } }); window.addEventListener('mousemove', (e) => { if (isDraggingCrack) { const rect = canvas.getBoundingClientRect(); const my = e.clientY - rect.top; let relativeY = my - tank.y; relativeY = Math.max(0, Math.min(tank.h, relativeY)); tank.crackY = relativeY; } }); window.addEventListener('mouseup', () => { isDraggingCrack = false; }); burstBtn.addEventListener('click', () => { isBurst = true; burstBtn.disabled = true; statusText.innerText = "CRITICAL FAILURE!"; // Create Glass Shards for(let i=0; i<12; i++) { shards.push(new GlassShard( tank.x + tank.w, tank.y + tank.crackY + (Math.random()-0.5)*100, 10 + Math.random()*20, 10 + Math.random()*20 )); } }); function update() { // 1. Update Water Level if (isBurst && tank.waterLevel > 0) { // Torricelli's law approximation: flow rate depends on height above crack const heightAboveCrack = (tank.bottomY - (tank.y + tank.crackY)) - (tank.bottomY - tank.waterLevel); const depthRelative = (tank.bottomY - tank.y - tank.crackY) - (tank.bottomY - tank.waterLevel); // The actual water surface is at: tank.bottomY - tank.waterLevel // The crack is at: tank.y + tank.crackY const h = (tank.bottomY - tank.waterLevel) - (tank.y + tank.crackY); // Wait, the water surface is at tank.bottomY - tank.waterLevel. // Let's redefine: Water top = tank.bottomY - tank.waterLevel. // But actually it's easier to say: // Surface Y = tank.bottomY - tank.waterLevel; // Crack Y = tank.y + tank.crackY; // Pressure Head = Crack Y - Surface Y (if surface is lower) const surfaceY = tank.bottomY - tank.waterLevel; const pressureHead = (tank.y + tank.crackY) - surfaceY; if (pressureHead > 0) { // Draining const drainRate = 0.5 * Math.sqrt(pressureHead * 0.1); tank.waterLevel -= drainRate; // Emit particles const velocity = Math.sqrt(2 * GRAVITY * 10 * pressureHead) * 0.5; const particleCount = Math.ceil(pressureHead * 0.2); for (let i = 0; i < particleCount; i++) { particles.push(new WaterParticle( tank.x + tank.w, tank.y + tank.crackY, velocity + (Math.random() - 0.5) * 2, (Math.random() - 0.5) * 2 )); } } else { // Water level has fallen below the crack statusText.innerText = "Tank Drained"; } } // 2. Update Objects objects.forEach(obj => obj.update()); shards.forEach(sh => sh.update()); particles.forEach((p, i) => { p.update(); if (p.life <= 0) particles.splice(i, 1); }); } function draw() { ctx.clearRect(0, 0, width, height); // Draw Room Floor ctx.fillStyle = '#333'; ctx.fillRect(0, tank.bottomY, width, height - tank.bottomY); ctx.strokeStyle = '#444'; ctx.strokeRect(0, tank.bottomY, width, 2); // Draw Puddle Base if (particles.length > 0) { ctx.fillStyle = PUDDLE_COLOR; ctx.beginPath(); // Simple puddle approximation: a large flat ellipse ctx.ellipse(tank.x + tank.w + 50, tank.bottomY, particles.length * 0.5, 10, 0, 0, Math.PI * 2); ctx.fill(); } // Draw Tank Water if (tank.waterLevel > 0) { ctx.fillStyle = WATER_COLOR; ctx.fillRect( tank.x, tank.bottomY - tank.waterLevel, tank.w, tank.waterLevel ); } // Draw Tank Glass ctx.strokeStyle = 'rgba(200, 230, 255, 0.8)'; ctx.lineWidth = 4; ctx.strokeRect(tank.x, tank.y, tank.w, tank.h); // Draw the Crack if (!isBurst) { ctx.strokeStyle = 'rgba(255, 255, 255, 0.8)'; ctx.lineWidth = 2; ctx.beginPath(); ctx.moveTo(tank.x + tank.w, tank.y + tank.crackY); // Jagged line for (let i = 0; i < 5; i++) { ctx.lineTo(tank.x + tank.w - 5 + Math.random()*5, tank.y + tank.crackY + (i*2)); } ctx.stroke(); } else { // Open gap in the glass ctx.clearRect(tank.x + tank.w - 5, tank.y + tank.crackY - 10, 10, 20); } // Draw Entities objects.forEach(obj => obj.draw()); shards.forEach(sh => sh.draw()); particles.forEach(p => p.draw()); requestAnimationFrame(() => { update(); draw(); }); } init(); draw(); </script> </body> </html> ```
TAKE IT TO CODE
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