Create an enemy spawner and a dummy enemy.

[Kurt Dorflinger]

An enemy spawner is required for the main game that will spawn various enemies randomly, increasing in difficulty over time. For starters, it should be able to spawn a dummy enemy that will run in a random direction across the screen.

It should spawn enemies off screen and enemies should be removed after 20 seconds. There should also be a limit on the amount of enemies currently spawned. In the future enemies should be removed when they will no longer travel back into the screen.

Required files:

AmorphousClone/Spawner.h
AmorphousClone/Spawner.cpp
AmorphousClone/EnemyDummy.h
AmorphousClone/EnemyDummy.cpp