Asteroids · minimax-m2.5
Build a playable Asteroids game on a canvas: a thrust-and-rotate vector ship that shoots and wraps around the screen edges, splitting asteroids into smaller pieces, with score and lives. Procedural vector graphics only, no external assets.
transcript · 8 messages
Build a playable Asteroids game on a canvas: a thrust-and-rotate vector ship that shoots and wraps around the screen edges, splitting asteroids into smaller pieces, with score and lives. Procedural vector graphics only, no external assets.
thinking
The user wants me to build a classic Asteroids game. Let me plan out what I need to create: 1. A canvas-based game with vector graphics (drawn using canvas paths, no images) 2. A ship that can: - Rotate left/right - Thrust forward - Shoot bullets 3. Asteroids that: - Float across the screen - Split into smaller pieces when hit - Wrap around screen edges 4. Game mechanics: - Score system - Lives system - Game over state Let me build this as a single HTML file with embedded CSS and JavaScript. I'll create: - A ship drawn with vector graphics (triangle shape) - Asteroids as irregular polygons - Bullets as small circles/lines - Score display - Lives display (maybe as small ship icons) - Keyboard controls (arrow keys + space) - Smooth animations with requestAnimationFrame - Screen wrapping for all objects Let me write the complete game now.
I'll create a classic Asteroids game with vector graphics, ship physics, asteroid splitting, score, and lives. Let me build this in a single self-contained HTML file.
/tmp/ws/index.html (19683 bytes)Successfully wrote 19683 bytes to /tmp/ws/index.html
thinking
I've created the Asteroids game. Let me verify the file exists and check that it's complete.
{"command":"ls -la /tmp/ws/index.html && head -20 /tmp/ws/index.html"}-rw-r--r--. 1 node node 19691 Aug 1 17:40 /tmp/ws/index.html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Asteroids</title> <style> * { margin: 0; padding: 0; box-sizing: border-box; } body { background: #0a0a0f; display: flex; justify-content: center; align-items: center; min-height: 100vh; font-family: 'Courier New', monospace;
thinking
The file has been created. Let me verify the game logic is complete and all necessary parts are in place. Let me check the tail of the file to make sure it's properly closed.
{"command":"tail -15 /tmp/ws/index.html"}ctx.lineTo(SCREEN_WIDTH, y); ctx.stroke(); } requestAnimationFrame(gameLoop); } // Show start message messageEl.classList.add('visible'); // Start game loop gameLoop(); </script> </body> </html>
thinking
The file is complete with proper HTML structure. The game includes: 1. **Vector graphics ship** - Drawn with canvas paths as a triangle 2. **Ship controls** - Arrow keys for rotation and thrust, space to shoot 3. **Asteroids** - Procedurally generated irregular polygons that split when hit 4. **Screen wrapping** - All objects wrap around screen edges 5. **Scoring system** - Points for destroying asteroids (100-300 based on size) 6. **Lives system** - Player has 3 lives with invulnerability on respawn 7. **Level progression** - New level starts when all asteroids are cleared 8. **Particle explosions** - Visual feedback when asteroids/ship are destroyed 9. **Game states** - Start screen, playing, and game over The game uses: - Pure CSS styling with a retro neon aesthetic - Canvas API for all rendering (no external assets) - requestAnimationFrame for smooth game loop - Keyboard input handling All requirements are met!
I've created a complete Asteroids game in a single self-contained HTML file. Here's what's included: **Gameplay:** - **Ship**: Vector triangle graphics with thrust animation - **Controls**: ← → rotate, ↑ thrust, SPACE to shoot/start - **Physics**: Inertia-based movement with friction, screen wrapping - **Asteroids**: Procedurally generated irregular polygons in 3 sizes - **Splitting**: Large → Medium → Small asteroids when hit **Features:** - Score system (100/200/300 points for small/medium/large) - 3 lives with invulnerability after death (blinking effect) - Level progression (more asteroids each level) - Particle explosions on destruction - Atmospheric grid background with trail effects **Visual Style:** - Retro neon green (#00ff88) on dark background - Glowing effects on canvas border - Smooth 60fps animation via requestAnimationFrame Open `index.html` in a browser to play! Press SPACE to start.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
EVALUATION
Vector Asteroids game starts on Space, ship and drifting asteroids render correctly with score/lives HUD.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.