FastSM

FastSM is a finite state machine (FSM) library for GameMaker that provides a more lightweight alternative to SnowState. It employs different design paradigms that offer greater flexibility in certain scenarios while imposing specific limitations to maintain performance and simplicity.

Key Features

• State Management — Define states with enter/update functions and assign tags for categorization
• Trigger System — Create triggers with include/forbid rules to control state transitions
• Event Handling — Add custom events like "update" that can be called on active states
• Tag-based Organization — Assign up to 64 tags to states for grouping and filtering
• Transition Control — Configure allowed and forbidden state transitions per trigger

Philosophy

FastSM prioritizes simplicity and performance with explicit limitations, making it suitable for projects where a lightweight FSM implementation is preferred over feature-rich alternatives.