Select thing to manipulate by argument as ID. If argument is <0 or >255, change
it to the lowest unused thing ID. If thing of ID does not exist yet, create it
with default position of y=0/x=0, the first thing type's ID, and that type's
Select thing to manipulate by argument as ID. If argument is <0 or >255, change
it to the lowest unused thing ID. If thing of ID does not exist yet, create it
with default position of y=0/x=0, the first thing type's ID, and that type's