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Asteroids · gpt-5.1-codex-mini

Output generated Cost / run $0.0080 Runtime 26.8s

Prompt for this run

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.

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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

modelgpt-5.1-codex-mini
vendorOpenAI
harnesspi-agent
generated2026-08-01

METRICS

runtime26.8s
tokens in8.0k
tokens out3.5k
cached4.2k
cost / run$0.0080
Transcript · 8 messages
user

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.

assistant
thinking
**Creating an index file**

I need to create a single file named index.html that contains CSS, JavaScript, and HTML. It's important that I follow the instructions carefully. I’ll also need to inspect the directory to check for anything specific that might help me with this task. Let’s make sure everything is organized and that I have all the necessary components to create a well-structured index file. It should be a fun challenge!
→ bash {"command":"pwd"}
toolResult

/tmp/ws

assistant
→ bash {"command":"ls"}
toolResult

(no output)

assistant
thinking
**Planning game development**

I’m focusing on creating a single file called index.html for the game. I think I need to review my instructions before diving into the code. My plan is to write everything myself, ensuring no external resources are used. I’ll set up a full-screen canvas within the HTML structure, along with inline CSS and JavaScript. The game's core elements will include classes for the ship, asteroids, and lasers, with functionality for movement and displaying score and lives. Time to get to crafting!
→ write index.html (9886 bytes)
toolResult

Successfully wrote 9886 bytes to index.html

assistant

Created `index.html` with a complete self-contained Asteroids game, including canvas, HUD, procedural vector graphics, and gameplay logic with scoring, lives, and wrap-around behavior.