Unity Game Optimization - Third Edition

Verifying the order of events

Unity applications mostly operate as a series of callbacks from Native code to Managed code. This concept will be explained in more detail in Chapter 8, Masterful Memory Management, but for the sake of a brief summary, Unity's main thread doesn't operate as a simple console application would. In such applications, code would be executed with some obvious starting point (usually a main() function), and we would then have direct control of the game engine, where we initialize major subsystems, and then the game runs in a big while loop (often called the game loop) that checks for user input, updates the game, renders the current scene, and repeats. This loop only exits once the player chooses to quit the game. ...