Wave Spawner

Sprite	Images
sprEnemy

Object	Sprite	Properties
objEnemy	sprEnemy	Visible
objSpawner	no sprite	Visible

room layout:

objSpawner	Create event

objSpawner	Alarm → Alarm 0 event

objEnemy	Create event

objEnemy	Step → Step event

extension activities:

1. Add different alarms that go every 2, 5 and 10 seconds, using the same objSpawner object
2. Experiment with random numbers and arithmetic to create other patterns in the spawn waves, other than the i * 50 down the y-axis pattern shown in the example.