Space Invaders · qwen3.5-plus-02-15
Build a playable Space Invaders game on a canvas: a player cannon that moves and shoots, a descending grid of aliens that advance and fire back, destructible bunkers, score, and lives. Procedural graphics only, no external assets.
transcript · 4 messages
Build a playable Space Invaders game on a canvas: a player cannon that moves and shoots, a descending grid of aliens that advance and fire back, destructible bunkers, score, and lives. Procedural graphics only, no external assets.
thinking
The user wants me to create a complete Space Invaders game in a single HTML file. This needs to include: 1. A player cannon that moves left/right and shoots 2. A grid of aliens that descend and advance 3. Aliens that fire back at the player 4. Destructible bunkers (shields) 5. Score tracking 6. Lives system 6. All procedural graphics (no external assets) 7. Canvas-based rendering 8. Everything in one self-contained index.html file Let me build this step by step: 1. HTML structure with a canvas element 2. CSS styling in a <style> tag 3. JavaScript game logic in a <script> tag including: - Game state management - Player controls (keyboard input) - Alien movement and AI - Collision detection - Bunker destruction system - Score and lives display - Game loop with requestAnimationFrame I'll make sure all graphics are drawn procedurally using canvas API (rectangles, circles, paths, etc.)
/tmp/ws/index.html (18758 bytes)Successfully wrote 18758 bytes to /tmp/ws/index.html
thinking
The Space Invaders game has been created successfully. Let me verify the file was written correctly.
Done! I've created a complete Space Invaders game in `/tmp/ws/index.html` with: **Features:** - **Player cannon** - Moves left/right with arrow keys, shoots with SPACE (max 3 bullets on screen) - **Alien grid** - 5 rows × 11 columns of 3 alien types (squid, crab, octopus) with different point values - **Alien behavior** - Move side-to-side, drop down when hitting edges, speed increases as they're destroyed - **Alien shooting** - Aliens fire back at random intervals (gets faster at higher levels) - **Destructible bunkers** - 4 bunkers with block-by-block damage (3 hits per block) - **Score system** - Points based on alien type (10/20/30), persistent high score in localStorage - **Lives system** - 3 lives, game over when depleted or aliens reach player - **Level progression** - New level starts when all aliens destroyed, with increased difficulty - **Procedural graphics** - All sprites drawn with canvas primitives, animated starfield background **Controls:** - ← → : Move cannon - SPACE : Shoot - ENTER : Start/Restart game
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
Space Invaders with player cannon, colorful alien grid, bunkers, score/lives HUD; game starts and responds to keyboard input, mouse ignored as expected.
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.