Created
August 22, 2024 12:24
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| import { DisplayObject } from "@pixi/display"; | |
| export class Pool<T extends DisplayObject> { | |
| private inactive: T[] = []; | |
| public active: T[] = []; | |
| private readonly createObject: () => T; | |
| private readonly resetObject: (elem: T) => void; | |
| private readonly destroyObject: (elem: T) => void; | |
| constructor( | |
| createObject: () => T, | |
| resetObject: (elem: T) => void, | |
| destroyObject: (elem: T) => void | |
| ) { | |
| this.createObject = createObject; | |
| this.resetObject = resetObject; | |
| this.destroyObject = destroyObject; | |
| } | |
| public getInstance(): T { | |
| const instance = this.inactive.pop() || this.createObject(); | |
| this.active.push(instance); | |
| this.resetObject(instance); | |
| return instance; | |
| } | |
| public release(instance: T): void { | |
| instance.parent && instance.parent.removeChild(instance); | |
| this.active = this.active.filter((i) => i != instance); // remove passed instance | |
| this.inactive.push(instance); | |
| } | |
| public destroy(): void { | |
| [...this.active, ...this.inactive].forEach((instance) => | |
| this.destroyObject(instance) | |
| ); | |
| } | |
| } |
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