What problem does it solve? Writing YGOPro card scripts requires knowing hundreds of Lua API functions across Card, Effect, Group, and Duel objects, and this reference organizes them into focused, searchable documents so you can find exact signatures, parameters, and return types without reading the ocgcore C++ source. ## Core Features & Use Cases - Complete API Coverage: Documents Card getters, actions, identity, state, and effect management; Effect creation, setters, and callbacks; Group filtering and selection; and the global Duel controller. - Constants Reference: Lists all core constants including locations, positions, types, attributes, races, reasons, summon types, effect codes, events, and categories. - Procedure Helpers: Covers Auxiliary summoning procedures for Synchro, Xyz, Fusion, Ritual, Link, Pendulum, and Gemini monsters. - Use Case: When scripting a new custom card effect, look up the exact signature of Duel.SpecialSummon, the correct EFFECT_TYPE and EVENT constants, and the callback parameter order for condition, cost, target, and operation functions. ## Quick Start Ask the AI to look up the YGOPro Lua API for registering a trigger effect on a card, including the required constants and callback signatures.
