Dependency

Dependency() resolves another registered system and returns its singleton instance.

WARNING

Call Dependency() only during system construction: field initializers, constructor parameters, or constructor body code. Calling it later throws at runtime.

Type

Dependency<T>(dependency: ClassRef<T>): T

Behavior

• Resolves the requested system from comet's registry.
• Constructs lazy systems the first time they are requested.
• Rejects self-dependencies.
• Records the dependency so it can be initialized before launch completes.

Usage

import { Audio, Dependency, GUI, History, OnInit, Studio, System } from "@rbxts/comet";

@System()
export class MySystem implements OnInit {
	private gui = Dependency(GUI);

	constructor(
		private audio = Dependency(Audio),
	) {
		const studio = Dependency(Studio);
	}

	onInit() {
		// Invalid: this is no longer constructor-time code.
		const history = Dependency(History);
	}
}

If you need a system later, store the reference during construction and reuse it.