bool GetSelected(void) {return Selected;}
float GetPctFull(void) {return PctFull;}
float GetContents(void) {return Contents;}
+ float inline GetX(void) {return X;}
+ float inline GetY(void) {return Y;}
+ float inline GetZ(void) {return Z;}
enum TankType {ttUNKNOWN, ttFUEL, ttOXIDIZER};