Env - Boss Fight

[frixaco]

Adds a 2D boss-fight environment where an agent must defeat a stationary boss by attacking while dodging AOE bursts.

Ran sweep for a bit, tuned config, trained successfully. Tested on AMD CPU, Apple Silicon CPU + MPS. Raylib rendering included.

First time with RL/PufferLib/C - happy to take any feedback!

Details

See README for more.

• Arena: Square arena with grid overlay and crosshair axes
• Boss: Stationary, cycles through IDLE → WINDUP → ACTIVE → RECOVERY with visual telegraphs
• Player actions: Move (4-dir), Dodge (with i-frames + trail effect), Attack (melee with ring effect)
• Challenge: Dodge timing - i-frames are shorter than AOE duration, forcing spatial escape

Discrete(7) actions, Box(12,) obs. Ends on kill, death, or timeout.

TODO

• Improve Raylib visuals
• More boss attacks (e.g. projectiles, telegraphed moves)
• Boss as agent (self-play)

Open to suggestions!

Demo

Screen.Recording.2026-01-25.at.06.01.36_compressed.mov