CrowdAttribute

namespace Griff.Runtime;

public sealed class CrowdAttribute : Attribute

Marks a script that changes nothing but its own entity in its Update, FixedUpdate and LateUpdate: its own values, its entity’s transform and components. The game then runs the scripts of a crowd of them (thousands of bunnies, boids, bullets) together, in one pass spread across the computer’s cores (see Workers), rather than one call after another on the game’s thread. What comes out is the same on any number of cores, one included.

A crowd script reads its own entity, the game’s time and controls, and anything else nothing changes during the pass (not another of the crowd: it may be moving at that very moment). Rand gives each script of the crowd numbers of its own, the same however the crowd is split. What would change something else (spawning, destroying, messages, timers, coroutines, tweens, sounds, flashes, debug drawing, saving, adding or removing components, changing scenes) throws instead: do that from a script that isn’t a crowd one, or in Start, which runs as any script’s does. Scripts run in hierarchy order as ever, a crowd’s all at once at the place of its first: what comes before it in the hierarchy has run, and what comes after hasn’t. A crowd is a run of scripts of the same type next to each other in that order; one inside another entity runs on the game’s thread after the rest of its crowd.