Apple Game Frameworks and Technologies

Add the Monster Entities to the Scene’s Entities Array

Switch to the GeneratorComponent.swift, and at the bottom of the spawnMonsterEntity() method, after the line that reads monsterEntity.addComponent(physicsComponent), add the following code:

if let scene = componentNode.scene as? GameScene {
  scene.entities.append(monsterEntity)
}

This code adds the “spawned” monster entity to the scene’s entities array, which you need to do so that the attached components participate in the update routine. This update takes place in the GameScene’s update(_:) method, which looks like this:

// Update entities
for entity in self.entities {
  entity.update(deltaTime: dt)
}

Fantastic, you’re ready to test the new monster agent goals. ...