pixelfx: 244 Pixel Art Effects and Claude Code Skill

Provides 244 pixel art effects, including fire, explosions, magic, and weather, at the code level. Implemented purely in code rather than image files, allowing for precise frame-by-frame control. It is immediately usable in various environments, from browser game engines to Godot and Unity.

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It goes beyond simple visual effects by also handling character action timing. It implements impactful staging by including action data such as wind-up, freeze, and recovery for 12 weapons and 61 effects. Colors can be changed simply by swapping the palette, and it can be exported as sprite sheets and Aseprite-format JSON for easy integration into existing engines.

New effects can be generated through a skill provided as a Claude Code plugin. It automates repetitive tasks from drafting to rendering and quality checks with just natural language instructions. Based on Hugo Duprez's pixel art production techniques, it ensures consistent behavior independent of frame rate through a simulation-based particle system.

Released under the MIT license, it can be used by directly taking the code with no dependencies or installed as an npm package. It is suitable for developers who want to create pixel art effects themselves or add impact to existing games. As an open-source project that has expanded to library scale, effects are continuously added through community contributions.