public bool reserve(Barrel b)
{
if (whoIsUsingIt == null)
{
whoIsUsingIt = b;
Debug.Print("b" + b.getBarrelNumber() + " reserved the air supply");
return(true);
}
else
{
return(false);
}
}
public void free(Barrel b)
{
whoIsUsingIt = null;
Debug.Print("b" + b.getBarrelNumber() + " freed the air supply");
}