GPC 3 Reference

A high-performance C-style scripting language for real-time controller input and output logic.

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Getting Started

Overview
A practical overview of GPC3 controller scripting
Getting Started
Write your first GPC3 script and learn the core workflow
Constants
Controller identifiers and value ranges
Script Compatibility
Compatibility notes for Titan Two and Cronus-style scripts
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Syntax

Variables & Types
Data types and variable declaration in GPC3
Operators
Arithmetic, logical, and bitwise operators in GPC3
Control Flow
Conditional statements and loops in GPC3
Combos
Creating timed input and device-test sequences with combos
Preprocessor
Defines, includes, and conditional compilation
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Functions

Input Functions
Read controller input, physical input, events, and hold timing
Output Functions
Set controller output and temporarily block inputs
Combo Functions
Control timed combo execution
Time Functions
Read runtime timing and build time-based script behavior
Math Functions
Math helpers for controller values, curves, and timing logic
Keyboard & Mouse
Read and write keyboard and mouse state
Polar Stick Functions
Read and write stick direction and radius
Memory & Persistent Data
Work with script memory and save small settings
System Functions
Debug output, reusable functions, and preprocessor basics
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Examples

Accessibility Controls
Remapping, one-handed layouts, and hold-to-toggle controls
Controller Diagnostics
Inspect button events, axis ranges, and output paths
Input Sequencing
Timed device tests and accessible input sequences
Stick Calibration
Analog stick scaling, deadzones, smoothing, and curves