Conway's Game of Life · mimo-v2.5-pro
Run Conway's Game of Life on a full-screen canvas grid with click-and-drag to toggle cells, plus play/pause, step, randomize, and clear controls.
transcript · 8 messages
Run Conway's Game of Life on a full-screen canvas grid with click-and-drag to toggle cells, plus play/pause, step, randomize, and clear controls.
thinking
The user wants me to create a single-page Conway's Game of Life implementation with: 1. Full-screen canvas grid 2. Click-and-drag to toggle cells 3. Play/pause button 4. Step button 5. Randomize button 6. Clear button Let me create this as a self-contained index.html file.
/workspace/index.html (9297 bytes)Successfully wrote 9297 bytes to /workspace/index.html
thinking
Let me fix a bug I spotted - I had a typo in `countNeighbors` (used `n` instead of `rows`) and then created a fixed version. Let me clean this up properly.
I noticed a dead-code bug — let me clean that up:
{"path":"/workspace/index.html","edits":[{"oldText":" function countNeighbors(g, x, y) {\n let n = 0;\n for (let dy = -1; dy <= 1; dySuccessfully replaced 2 block(s) in /workspace/index.html.
thinking
Let me verify the file looks correct now.
Let me verify the final file:
{"command":"wc -l /workspace/index.html && grep -n 'countNeighbors' /workspace/index.html"}295 /workspace/index.html 90: function countNeighbors(g, x, y) { 108: const nb = countNeighbors(grid, x, y);
thinking
Good, the cleanup is done. Let me also verify the file is well-formed.
Done! `/workspace/index.html` is a fully self-contained Conway's Game of Life app. Here's what it includes: **Grid & Rendering** - Full-screen `<canvas>` with toroidal (wrapping) grid — cells at edges wrap around - Cell size of 12px with subtle grid lines and green-hued live cells **Interactions** - **Click & drag** to paint cells (toggles based on what you click — paint alive or erase) - **Touch support** for mobile devices - **Keyboard shortcuts**: `Space` (play/pause), `N`/`→` (step), `R` (randomize), `C` (clear) **Controls** (centered toolbar) | Button | Action | |--------|--------| | ▶ Play / ⏸ Pause | Start/stop auto-stepping | | ⏭ Step | Advance one generation | | 🎲 Random | Fill ~30% of cells randomly | | 🗑 Clear | Kill all cells | | Speed slider | 1–60 generations/sec | **Info bar** shows current generation number and live cell count.
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
Drag toggles cells forming a wave pattern; simulation runs to gen 36 and dies out (0 alive), click/wheel show minor toggling.
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.