public void CreateStatic(PhysicsBehaviourX istatic)
 {
     istatic.xID = IDCounter;
     istatic.XStart();
     staticColliders.Add(istatic);
     IDCounter++;
 }
 public void CreateDynamic(PhysicsBehaviourX idynamic)
 {
     idynamic.xID = IDCounter;
     idynamic.XStart();
     dynamicColliders.Add(idynamic);
     IDCounter++;
 }