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Brick breaker · gpt-5-mini

Using the pre-provided phaser.min.js (global Phaser), build a playable brick-breaker game with a paddle (arrow keys or mouse), a bouncing ball, and a wall of breakable bricks with a score. Use ONLY procedurally generated graphics via the Phaser Graphics API or generated textures — no external image or audio assets whatsoever.

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user

Using the pre-provided phaser.min.js (global Phaser), build a playable brick-breaker game with a paddle (arrow keys or mouse), a bouncing ball, and a wall of breakable bricks with a score. Use ONLY procedurally generated graphics via the Phaser Graphics API or generated textures — no external image or audio assets whatsoever.

assistant
thinking
**Planning breakout game development**

I'm focusing on creating an index.html file that includes phaser.min.js from the current directory. I'll use Phaser's graphics API for texture generation. The game will be a classic breakout style with paddle controls via left/right keys and mouse, along with bricks, scoring, and lives. I need to ensure the Phaser library is referenced correctly in my HTML and that I add inline CSS and JS. Everything should follow Phaser 3 conventions, especially for collisions and physics.**Developing breakout game mechanics**

I'm working on making the ball initially stick to the paddle until the spacebar is pressed or the screen is clicked to launch it. I'll control the paddle using the mouse and arrow keys. I plan to use procedural textures for the paddle, ball, and bricks, adding some randomness in colors. I need to implement a score UI in the top left and lives in the top right, with a game over option. I'll also ensure responsive resizing and set up the physics configuration properly. Time to write the code!**Creating textures and implementing collisions**

I need to generate a circle texture for the ball using `generateTexture('ball', size, size)` with `fillCircle`. It's important that the graphics object exists as a GameObject, so I'll create it with `this.make.graphics(...)` or `this.add.graphics`. For the ball's collision with the paddle, I’ll add a collider that adjusts its velocity based on the pointer's location. Bricks will use a static group for collision management. I'll also implement scoring increments, life resets, and a simple start screen overlay. Now, I’ll write the index.html file.
write index.html (10908 bytes)
toolResult

Successfully wrote 10908 bytes to index.html

assistant

I created index.html with a complete Phaser brick-breaker game that uses only procedurally generated textures (no external images or audio). Open index.html in a browser (the included phaser.min.js is loaded) to play. Controls: arrow keys or mouse to move the paddle; click or SPACE to launch; click to restart after win/lose.

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-mini
vendorOpenAI
harnesspi-agent
generated2026-07-22

EVALUATION

2/5 partial

Brick breaker renders and paddle/ball respond, but lives counter goes deeply negative causing rapid game-over states, showing a life-tracking bug.

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 click2.1%
on drag3.2%
on wheel1.3%
on enter + space2.4%
on arrow keys0.2%
on w/a/s/d0.0%
frame spread67.3 / 255
console errors0
js errors none

METRICS

runtime61.6s
tokens in4.7k
tokens out4.1k
cached1.2k
cost / run$0.0093