Need help for a simple game

[Chrisir]

For storing different kind of objects in an Arraylist see

How to make a game with many different objects (ArrayList)

here is an example using interface and implements // demo for interface and implements // Interface allows to bring different kinds of objects in one ArrayList ArrayList<BasicItem3D> list = new ArrayList(); void setup() { size(950, 650, P3D); for (int x=0; x<7; x++) { for (int y=0; y<7; y++) { if (random(100) > 50) list.add(new ClassBox( 300.0+x*74, 100.0+y*74, random(-150, 150))); else list.add(new ClassSphere( 300.0+x*74, 100.0+y*74, random(-150, 150…