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Conway's Game of Life · glm-5

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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transcript · 4 messages
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 implementation as a single-page web app with:
1. Full-screen canvas grid
2. Click-and-drag to toggle cells
3. Controls: play/pause, step, randomize, clear

Let me create a complete self-contained index.html file with all CSS and JS inline.
write /workspace/index.html (13563 bytes)
toolResult

Successfully wrote 13563 bytes to /workspace/index.html

assistant
thinking
I've created a complete Conway's Game of Life implementation. Let me verify it exists and summarize what I built.

I've created a complete Conway's Game of Life implementation in `/workspace/index.html`. Here's what it includes: **Features:** - **Full-screen canvas** with a dark theme and grid overlay - **Click-and-drag** to toggle cells (draw or erase mode based on initial click) - **Smooth line drawing** - cells are filled in between mouse positions for continuous strokes - **Glow effect** on live cells for visual appeal **Controls:** - **▶ Play / ⏸ Pause** - Start/stop the simulation - **⏭ Step** - Advance one generation when paused - **🎲 Random** - Populate with ~25% random cells - **✕ Clear** - Reset to empty grid **Interactions:** - **Mouse drag** - Draw/erase cells - **Scroll wheel** - Zoom in/out (adjusts cell size from 4px to 40px) - **Touch support** - Works on mobile devices - **Keyboard shortcuts**: Space (play/pause), S (step), R (random), C (clear) **Technical details:** - Toroidal grid (wraps around edges) - ~10 generations per second when playing - Generation counter and live cell count displayed - Responsive to window resizing

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-5
vendorZ.ai · GLM
harnesspi-agent
generated2026-07-22

EVALUATION

4/5 working

Game of Life with drag-to-draw, play/pause via space, evolving cells, controls all functional as shown.

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 drag1.1%
on wheel2.1%
on enter + space3.0%
on arrow keys1.9%
on w/a/s/d3.6%
frame spread18.3 / 255
console errors0
js errors none

METRICS

runtime53.5s
tokens in3.3k
tokens out3.5k
cached2.9k
cost / run$0.0090