float offsetY = cameraSystem.getStartY();
g.drawRect(offsetX*scaleX, offsetY*scaleY, scaleX*cameraSystem.getWidth(), scaleY*cameraSystem.getHeight());
ImmutableBag<Entity> entities = world.getManager(GroupManager.class).getEntities("crates");
for(int i = 0; entities.size() > i; i++) {
Entity crate = entities.get(i);
Physics cratePhysics = physicsMapper.get(crate);
float crateX = cratePhysics.getX()*scaleX;
float crateY = cratePhysics.getY()*scaleY;
g.fillRect(crateX-1, crateY-1, 2, 2);
}
ImmutableBag<Entity> tanks = world.getManager(GroupManager.class).getEntities("tanks");
for(int i = 0; tanks.size() > i; i++) {
Entity t = tanks.get(i);
String tp = world.getManager(PlayerManager.class).getPlayer(t);
Physics physics = physicsMapper.get(t);
g.setColor(Color.green);
float tx = physics.getX()*scaleX;
float ty = physics.getY()*scaleY;