+ ‘05_object_oriented_design/assignments/spaceInvaders/AlienSystem.pde’
+ ‘05_object_oriented_design/assignments/spaceInvaders/Alienship.pde’
+ ‘05_object_oriented_design/assignments/spaceInvaders/Bullet.pde’
+ ‘05_object_oriented_design/assignments/spaceInvaders/Spaceship.pde’
+ ‘05_object_oriented_design/assignments/spaceInvaders/data/alienship.png’
+ ‘05_object_oriented_design/assignments/spaceInvaders/data/originalImages/enemy.png’
+ ‘05_object_oriented_design/assignments/spaceInvaders/data/originalImages/spaceship.png’
+ ‘05_object_oriented_design/assignments/spaceInvaders/data/spaceship.png’
+ ‘05_object_oriented_design/assignments/spaceInvaders/spaceInvaders.pde’