Getflag Routine:
This is the entry routine for Torque's flag-retrieval code. If Torque's
damage is zero, then he must discharge energy so that the flag can be safely
collected, so he jumps to a routine to do this, and then returns to the
flag-retrieval code.
At this stage, Torque has scanned a flag directly in front of him, but
does not know exactly how far away it is.