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Feather Fling — Slingshot Siege

A slingshot siege built to a detailed spec: trajectory preview, wood/glass/stone with real durability differences, original characters and art, and Web Audio sound — all in one self-contained file with no libraries.

Feather Fling: a slingshot aimed at a wood and glass fortress
Open in its own tab ↗ drag the sling · release to fire

Provenance

Model
Claude Opus 5
Reasoning
Made with
Claude Code CLI
Generated
2026-07-24
Build
single HTML file · 90 KB · 2,165 lines
Libraries
none — vanilla JS
trajectory previewwood / glass / stone durabilityoriginal art + charactersWebAudio SFXno libraries

The prompt

Original prompt

Build a polished physics-based slingshot game inspired by Angry Birds as a **single self-contained HTML file**.

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Use only HTML, CSS, vanilla JavaScript, and Canvas. No external libraries, assets, CDNs, or network requests.

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Requirements:

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* Drag-and-release slingshot controls with trajectory preview * Gravity, collisions, bounce, friction, and breakable structures * Original projectile characters, enemies, artwork, sounds, and level design * Wood, glass, and stone blocks with different durability * Score, remaining shots, win/lose states, and restart button * Mouse and touch support * Responsive layout * Simple generated sound effects using the Web Audio API

Recovery status

Verbatim from the Claude Code session in `luckey-bench-runs/opus-5`, 2026-07-24.

Provenance note. Answers a far more detailed brief than Qwen’s Feather Fury — the two are not a like-for-like head-to-head, since the prompts differ substantially.