tgt - target entity (can be either a point or a model entity; if it is
the latter, its midpoint is used)
ht - jump height, measured from the higher one of org and tgt's midpoint
tgt - target entity (can be either a point or a model entity; if it is
the latter, its midpoint is used)
ht - jump height, measured from the higher one of org and tgt's midpoint