// Structs (GML 2.3+) player = hp: 100, attack: function(enemy) enemy.hp -= 15;
By default, GameMaker draws an object's sprite automatically. However, using GML in a Draw Event allows you to add custom text, health bars, or special effects. Learning Resources and Guides GameMaker Studio 2 impressions: New Project - csanyk.com
Like a standard array, but packed with built-in functions for sorting, shuffling, and searching.
Mastering GML in GameMaker Studio 2 transforms you from a user into a creator. The language is designed to get out of your way, offering a low barrier to entry but a high ceiling for professional-grade development. By starting with simple variable manipulation and moving toward custom functions and complex data structures, you can build any 2D experience you can imagine. Share public link gamemaker studio 2 gml
Fires when the bounding box of one object overlaps with another.
Never use obj_enemy.x to get a single value if there are multiple enemies (which one?). Use with or instance_nearest() instead.
| Problem | Solution | |---------|----------| | Object not moving | Check if Step event exists and speed vars are applied | | Collisions jittery | Use place_meeting() + move_contact_all() | | Memory leaks | Destroy instances with instance_destroy() ; remove data structures with ds_map_destroy() etc. | | Slow game | Avoid draw_text every step; use surfaces or culling | // Structs (GML 2
With the release of GameMaker 2022 and later, YoYo Games introduced GML 2.0 features, including:
This change unifies array behavior across all platforms, including HTML5, and enables much larger arrays both in item count and dimensions. The deprecated functions have been replaced by array_length() and array_resize() , with full compatibility for older code until eventual removal.
These functions can accept parameters, return values (or undefined if nothing is returned), and be called from any event or script. GML also supports —functions stored inside variables—which can be passed around as first‑class values, enabling powerful functional programming patterns. Mastering GML in GameMaker Studio 2 transforms you
While GML Visual is excellent for prototyping, GML Code is faster to write, easier to debug, and necessary for complex systems like procedural generation, advanced AI, and network multiplayer. Transitioning to GML Code removes all creative limitations. 2. Core Concepts and Syntax Basics
Can you publish a game using only Drag and Drop? Yes. Hyper Light Drifter used DnD? No. Undertale ? No.
// Motion add motion_add(angle, acceleration); friction = 0.1; // Slow down over time