Top-down alien shooter · nemotron-3-ultra-550b-a55b

Output generated Cost / run $0.0282 Runtime 320.4s

Prompt for this run

Using the pre-provided phaser.min.js (global Phaser), build a top-down alien shooter: move with WASD, aim and fire at waves of advancing aliens, with health, score, and increasing difficulty. Use ONLY procedurally generated graphics, no external image or audio 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

modelnemotron-3-ultra-550b-a55b

vendorNVIDIA

harnesspi-agent

generated2026-07-22

METRICS

runtime320.4s

tokens in28k

tokens out6.4k

cached256

cost / run$0.0282

Transcript · 7 messages

assistant

thinking

Good, phaser.min.js exists. Now I'll create the index.html file with a complete top-down alien shooter game using procedural graphics.

→ write /workspace/index.html (24027 bytes)

toolResult

Successfully wrote 24027 bytes to /workspace/index.html

assistant

thinking

The file has been created. Let me verify it exists and is properly formed.

→ bash {"command":"ls -la /workspace/index.html"}

toolResult

-rw-r--r-- 1 node node 24027 Jul 22 18:26 /workspace/index.html

assistant

thinking

The file has been created successfully. Let me verify it's valid by checking the basic structure.

→ bash {"command":"head -50 /workspace/index.html && echo \"...\" && tail -20 /workspace/index.html"}

toolResult

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Alien Shooter</title> <script src="phaser.min.js"></script> <style> * { margin: 0; padding: 0; box-sizing: border-box; } body { background: #1a1a2e; display: flex; justify-content: center; align-items: center; min-height: 100vh; font-family: 'Courier New', monospace; overflow: hidden; } #game { border: 3px solid #00ffff; box-shadow: 0 0 30px rgba(0, 255, 255, 0.5), inset 0 0 30px rgba(0, 255, 255, 0.1); border-radius: 8px; } #ui { position: fixed; top: 20px; left: 20px; color: #00ffff; text-shadow: 0 0 10px #00ffff; z-index: 100; pointer-events: none; } #ui div { margin: 5px 0; font-size: 18px; } #wave { font-size: 24px; font-weight: bold; } #gameOver { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); color: #ff0066; text-shadow: 0 0 20px #ff0066; text-align: center; z-index: 200; display: none; pointer-events: auto; } #gameOver h1 { font-size: 48px; margin-bottom: 20px; } #gameOver p { font-size: 24px; margin: 10px 0; } #gameOver button { margin-top: 20px; ... }, scene: GameScene }; // Initialize let game; document.getElementById('startBtn').addEventListener('click', () => { document.getElementById('startScreen').style.display = 'none'; game = new Phaser.Game(config); }); document.getElementById('restartBtn').addEventListener('click', () => { document.getElementById('gameOver').style.display = 'none'; game.destroy(true); game = new Phaser.Game(config); }); </script> </body> </html>

assistant

thinking

The file looks complete and properly structured. It includes:
- HTML structure with start screen, game over screen, and UI
- CSS for styling (neon/cyberpunk theme)
- Phaser loaded from local phaser.min.js
- Complete game logic with:
  - Player movement with WASD
  - Mouse aiming and auto-fire on click/hold
  - Procedurally generated graphics (player ship, bullets, 5 alien types, particles, muzzle flash)
  - Waves of advancing aliens with increasing difficulty
  - Health, score, and wave tracking
  - Particle effects on hits
  - Camera shake on player hit
  - Start/restart functionality

The game is fully self-contained in a single HTML file with no external assets. All graphics are generated procedurally using Phaser's graphics API.

Done! I've created a complete top-down alien shooter in `/workspace/index.html` with: **Gameplay:** - **WASD** to move, **mouse** to aim, **click/hold** to auto-fire - Waves of aliens spawn from screen edges and advance toward you - Increasing difficulty: faster aliens, more health, shorter spawn intervals each wave - Health, score, and wave counter in top-left UI **Procedural Graphics (no external assets):** - Player: cyan triangle ship with glow - 5 alien types with distinct colors/shapes and animated eyes - Yellow bullets with additive blending - Muzzle flash on fire - Particle explosions on hits (color-matched to target) - Grid background with subtle lines **Features:** - Start screen → Game → Game Over → Restart flow - Camera follows player with smooth lerp - Screen shake on player hit - Invulnerability frames with blink effect - Alien health bars - Wave announcements - Score scales with alien type and wave number Open `index.html` in a browser to play!