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Mario-style platformer · ministral-8b-2512

Output saved · Stopped by an API error Cost / run $0.0210 Runtime 426.2s

A model request failed and its retries ran out. The output is the HTML saved before that.

Prompt for this run

Build a playable side-scrolling platformer using the provided Phaser library, with a classic Mario-inspired visual style. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `phaser.min.js` (global `Phaser`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Provide one completable scrolling level with solid platforms, gaps, collectible coins, patrolling enemies, and a goal flag. - Use Left/Right or A/D to run and Space to jump. Display the controls. Apply gravity and platform collision; prevent repeated mid-air jumping. - Landing on an enemy from above defeats it and bounces the player upward. Side contact or falling into a gap causes a loss state. - Collecting a coin removes it and increases the displayed count once. Reaching the goal flag shows a win state. - Keep the camera following the player within level bounds. Provide Restart that resets coins, enemies, player, and camera. - Generate all graphics using Phaser Graphics or generated textures. Do not load image or audio assets. Verify: Test running and jumping near the starting area. Check landing on a nearby platform and camera following as the player moves. Use Restart and check that the initial player position, visible coins, and camera position return.

⛨ sandboxed Open in new tab ↗

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

modelministral-8b-2512
vendorMistral AI
harnesspi 0.87.1 · browser iteration
generated2026-10-07

METRICS

runtime426.2s
tokens in637k
tokens out21k
cached576k
cost / run$0.0210
Transcript · 83 messages
system

user

Build a playable side-scrolling platformer using the provided Phaser library, with a classic Mario-inspired visual style. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `phaser.min.js` (global `Phaser`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Provide one completable scrolling level with solid platforms, gaps, collectible coins, patrolling enemies, and a goal flag. - Use Left/Right or A/D to run and Space to jump. Display the controls. Apply gravity and platform collision; prevent repeated mid-air jumping. - Landing on an enemy from above defeats it and bounces the player upward. Side contact or falling into a gap causes a loss state. - Collecting a coin removes it and increases the displayed count once. Reaching the goal flag shows a win state. - Keep the camera following the player within level bounds. Provide Restart that resets coins, enemies, player, and camera. - Generate all graphics using Phaser Graphics or generated textures. Do not load image or audio assets. Verify: Test running and jumping near the starting area. Check landing on a nearby platform and camera following as the player moves. Use Restart and check that the initial player position, visible coins, and camera position return.

assistant
→ write index.html (10695 bytes)
toolResult

Successfully wrote to index.html

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Identifier 'cursors' has already been declared"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\n\nRestart","images":"attached"}

assistant
→ edit {"path":"index.html","edits":[{"oldText":" // Controls\n cursors = this.input.keyboard.createCursorKeys();","newText":
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" // Player movement\n const speed = 200;\n if (cursors.left.isDow
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.scoreText = this.add.text(20, 20, 'Coins: 0', { fontSize: '24px', fill: '#fff' })
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.physics.add.collider(player, platforms);\n this.physics.add.overlap(pl
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":"function update() {\n if (gameOver || winState) return;\n\n // Player moveme
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":"function collectCoin(player, coin) {\n coin.disableBody(true, true);\n coinC
toolResult

No changes made to index.html. The replacement produced identical content. This might indicate an issue with special characters or the text not existing as expected.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.physics.add.collider(player, enemies);","newText":" this.physics.add.c
toolResult

Could not find the exact text in index.html. The old text must match exactly including all whitespace and newlines.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.physics.add.collider(player, enemies);\n this.physics.add.overlap(play
toolResult

Could not find the exact text in index.html. The old text must match exactly including all whitespace and newlines.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.physics.add.collider(player, enemies);\n this.physics.add.overlap(play
toolResult

Could not find the exact text in index.html. The old text must match exactly including all whitespace and newlines.

assistant
→ read {"path":"index.html","offset":200,"limit":50}
toolResult

// Camera setup this.cameras.main.startFollow(player, true, 0.5, 0.5); this.cameras.main.setBounds(0, 0, 800, 600); // Controls cursors = this.input.keyboard.addKeys({ left: Phaser.Input.Keyboard.KeyCodes.LEFT, right: Phaser.Input.Keyboard.KeyCodes.RIGHT, up: Phaser.Input.Keyboard.KeyCodes.UP, a: Phaser.Input.Keyboard.KeyCodes.A, d: Phaser.Input.Keyboard.KeyCodes.D }); // UI this.scoreText = this.add.text(20, 20, 'Coins: 0', { fontSize: '24px', fill: '#fff' }); this.spaceKey = cursors.space; // Event listeners this.physics.add.collider(player, platforms); this.physics.add.overlap(player, coins, collectCoin, null, this); this.physics.add.collider(player, enemies, hitEnemy, null, this); this.physics.add.overlap(player, flag, winGame, null, this); // Generate graphics this.generateGraphics(); } function update() { if (gameOver || winState) return; // Player movement const speed = 200; if (cursors.left.isDown || cursors.a.isDown) player.setVelocityX(-speed); else if (cursors.right.isDown || cursors.d.isDown) player.setVelocityX(speed); else player.setVelocityX(0); // Jumping if (Phaser.Input.Keyboard.JustDown(cursors.space) && player.body.touching.down) player.setVelocityY(-500); // Enemy patrolling enemies.getChildren().forEach(enemy => { if (enemy.body.velocity.x === 0 || Math.abs(enemy.body.velocity.x) < 50) enemy.body.velocity.x = Phaser.Math.FloatBetween(-150, 150); }); } [82 more lines in file. Use offset=250 to continue.]

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.physics.add.collider(player, platforms);\n this.physics.add.overlap(pl
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ write index.html (11386 bytes)
toolResult

Successfully wrote to index.html

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c %c %c %c %c Phaser v3.80.1 (WebGL | Web Audio) %c https://phaser.io background: #ff0000 background: #ffff00 background: #00ff00 background: #00ffff color: #ffffff; background: #000000 background: transparent","error: player.body.setSize(...).offset is not a function","warning: [.WebGL-0x3c6c0017c200]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ edit {"path":"index.html","edits":[{"oldText":" player.body.setSize(20, 40).offset(0, 10);","newText":" player.body.setSize
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c %c %c %c %c Phaser v3.80.1 (WebGL | Web Audio) %c https://phaser.io background: #ff0000 background: #ffff00 background: #00ff00 background: #00ffff color: #ffffff; background: #000000 background: transparent","error: this.addCoin is not a function","warning: [.WebGL-0x76c00170200]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.addCoin(150, 350);\n this.addCoin(250, 250);\n this.addCoin
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" this.addEnemy(200, 300);\n this.addEnemy(350, 250);\n this.addEn
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":"function addCoin(x, y) {\n const coin = coins.create(x, y, 'coin');\n coin.s
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":"function addEnemy(x, y) {\n const enemy = enemies.create(x, y, 'enemy');\n e
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" // Platforms\n const platform1 = this.platforms.create(100, 400, 'platform'
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c %c %c %c %c Phaser v3.80.1 (WebGL | Web Audio) %c https://phaser.io background: #ff0000 background: #ffff00 background: #00ff00 background: #00ffff color: #ffffff; background: #000000 background: transparent","error: flag.body.setSize(...).offset is not a function","warning: [.WebGL-0x341400180200]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ edit {"path":"index.html","edits":[{"oldText":" flag.body.setSize(20, 80).offset(0, 0);","newText":" flag.body.setSize(20,
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c %c %c %c %c Phaser v3.80.1 (WebGL | Web Audio) %c https://phaser.io background: #ff0000 background: #ffff00 background: #00ff00 background: #00ffff color: #ffffff; background: #000000 background: transparent","error: this.generateGraphics is not a function","warning: [.WebGL-0x1e4400180200]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ edit {"path":"index.html","edits":[{"oldText":" // Generate graphics\n this.generateGraphics();","newText":" //
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" function generateGraphics() {\n // Player\n const playerGraphics = t
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" // Platforms\n const platform1 = this.platforms.create(100, 400, 'platform'
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" coins.create(150, 350, 'coin').setScale(0.5);\n coins.create(250, 250, 'coi
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" enemies.create(200, 300, 'enemy').setScale(0.8);\n enemies.create(350, 250,
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" function createGraphics() {\n // Player\n const playerGraphics = thi
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Unexpected token '}'"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ write index.html (11623 bytes)
toolResult

Successfully wrote to index.html

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c %c %c %c %c Phaser v3.80.1 (WebGL | Web Audio) %c https://phaser.io background: #ff0000 background: #ffff00 background: #00ff00 background: #00ffff color: #ffffff; background: #000000 background: transparent","error: this.createGraphics is not a function","warning: [.WebGL-0x1de400170200]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ edit {"path":"index.html","edits":[{"oldText":" // Generate graphics\n this.createGraphics();","newText":" // Ge
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ edit {"path":"index.html","edits":[{"oldText":" function createGraphics() {\n // Player\n const playerGraphics = thi
toolResult

Successfully replaced 1 block(s) in index.html.

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Unexpected token '}'"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

assistant
→ write index.html (11619 bytes)
toolResult

Successfully wrote to index.html

assistant
→ browser {"action":"reload"}
toolResult

Frame 1, +0ms

[Browser image supplied to model]

{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: %c %c %c %c %c Phaser v3.80.1 (WebGL | Web Audio) %c https://phaser.io background: #ff0000 background: #ffff00 background: #00ff00 background: #00ffff color: #ffffff; background: #000000 background: transparent","error: this.initGraphics is not a function","warning: [.WebGL-0x3a6c00170200]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels"],"dom":"Coins: 0\nControls:\nLeft/Right or A/D: Move\nSpace: Jump\nRestart","images":"attached"}

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