Core Concepts¶ These pages explain GDLink’s graph model and the systems most projects use first. Logic Bricks The three kinds of brick A graph lives on a node Why bricks instead of script The systems bricks build on Where to go next Listeners, Gates, Executors Listeners — notice something Gates — decide whether it counts Executors — make it happen Putting it together Where to go next Variables Local vs global Reading and writing Reserved runtime globals Saving and loading Where to go next States What a state is Driving states at runtime Authoring in the editor States vs variables Where to go next Runtime Model One tick, one pass Pulses are per-tick Only what matters is scanned Messages settle within the tick Why this matters in practice Where to go next