Finish Player run, jump and shoot.
Revert "Finish Player run, jump and shoot."

This reverts commit 371bc38686ba00876171cd776189223f11f741d8.
Revert "Revert "Finish Player run, jump and shoot.""

This reverts commit 83961638ffe2f821fd76f442d4fb060e457655c6.
Use group for collision detection instead of objects.