// Wrap screen edges if (x < 0) x = room_width; if (x > room_width) x = 0; Recently, GameMaker introduced Feather , an intelligent code checker. To use it effectively, you should add JSDoc annotations . This helps autocomplete and catches bugs.
// Basic Types score = 100; // Real (Double) player_name = "Alex"; // String is_alive = true; // Boolean // Arrays (0-indexed) items[0] = "Sword"; items[1] = "Shield"; gamemaker studio 2 gml
// Player stats hp_max = 100; hp = hp_max; move_speed = 4; sprite = spr_player_idle; // Input booleans key_left = false; key_right = false; // Wrap screen edges if (x < 0)
// In obj_enemy_parent (Create Event) hp = 50; speed = 2; // In obj_goblin (Child) // Inherits hp and speed, but we override: hp = 30; speed = 3; // Call parent event using event_inherited(); Before 2020, GML was notoriously basic. The 2.3 update changed everything. To write modern code, you must use Functions and Structs . Script Functions (First-Class Citizens) You can now store functions in variables and pass them around. // Basic Types score = 100; // Real