Hi, I`m trying to do a simple bomb shooter ...
In every level a fix number (wave*5) of bombs  spawns, 
when there is no more bombs 
(player destroyed them, or collided with player then destroyed, etc), 
then i want to show some scores, etc. and start the next wave.
My problem is : i don`t know how to check if there is still bombs 
(instances)on the layout or not.