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Conway's Game of Life · glm-4.7

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.

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user

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.

assistant
thinking
The user wants me to create a Conway's Game of Life simulation as a single-page web app. Let me plan this out:

1. Full-screen canvas grid
2. Click-and-drag to toggle cells
3. Play/pause button
4. Step button (advance one generation)
5. Randomize button
6. Clear button

I need to create this as a single index.html file with inline CSS and JavaScript, no external resources.

Key features:
- Canvas fills the screen
- Grid of cells (alive/dead)
- Conway's Game of Life rules:
  - Any live cell with 2-3 neighbors survives
  - Any dead cell with exactly 3 neighbors becomes alive
  - All other cells die or stay dead
- Click and drag to draw/erase cells
- Controls at the bottom or top of the screen

Let me write this out:

I'll create a full-screen Conway's Game of Life simulation with all the requested features in a single index.html file.

write /workspace/index.html (15637 bytes)
toolResult

Successfully wrote 15637 bytes to /workspace/index.html

assistant

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

modelglm-4.7
vendorZ.ai · GLM
harnesspi-agent
generated2026-07-22

EVALUATION

3/5 working

Game of Life grid runs via Enter/Space (play toggles), but click/drag/wheel show no visible cell 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.

idle motion0.0%
on click0.0%
on drag0.4%
on wheel0.0%
on enter + space54.0%
on arrow keys33.3%
on w/a/s/d20.2%
frame spread33.9 / 255
console errors0
js errors none

METRICS

runtime194.5s
tokens in43
tokens out3.6k
cached1.4k
cost / run$0.0065