Interface SystemAbstract

Example

class MovementSystem extends SceneSystem {
  private actorQuery: ActorQuery;
  private time: Time;

  constructor(options: SceneSystemOptions) {
    super();

    this.time = options.time;
    this.actorQuery = new ActorQuery({
      scene: options.scene,
      filter: [Transform, Velocity]
    });
  }

  update(): void {
    const { deltaTime } = this.time;
    const actors = this.actorQuery.getActors();

    for (const actor of actors) {
      const transform = actor.getComponent(Transform);
      const velocity = actor.getComponent(Velocity);

      transform.world.position.x += velocity.x * deltaTime;
      transform.world.position.y += velocity.y * deltaTime;
    }
  }
}
Copy