Function isTracking

packages/core/src/ECS/Systems/EntitySystem.ts:1035–1037

* 检查实体是否正在被此系统跟踪 * Check if an entity is being tracked by this system * * @param entity 要检查的实体 / The entity to check * @returns 是否正在跟踪 / Whether the entity is being tracked

(entity: Entity)

     * @returns 是否正在跟踪 / Whether the entity is being tracked
     */
    public isTracking(entity: Entity): boolean {
        return this._entityCache.isTracked(entity);
    }

    /**
     * 当实体的组件发生变化时由 Scene 调用