Spawning the aliens
Now that all the alien components, as well as AlienLaserSpawner, are coded, we can put them all to work in the game. It will take three steps, as follows:
- Update
GameEngine'sdeSpawnReSpawnmethod to spawn some of each alien. - Update the
Levelclass to add some aliens and alien lasers to theArrayListof objects. - Update the
GameObjectFactoryclass to handle instantiating the correct component classes (that we just coded) when the level class requests the various alienGameObjectinstances be built.
Let's complete these steps now.
Updating the GameEngine class
Add this code to the end of the deSpawnReSpawn method:
…
for (int i = Level.FIRST_ALIEN;
i != Level.LAST_ALIEN + 1; i++) {
objects.get(i).spawn(objects
.get(Level.PLAYER_INDEX).getTransform());
}
This loops through the appropriate...