I am writing this of top of my head right now, and I don't know if it will work, but I would create a new trace handle with create_tr2(), set TR_iHitGroup member of trace handle to HIT_HEAD, then make a ExecuteHam(Ham_TraceAttack, ...) call with that trace handle. And don't forget to free the handle with free_tr2()!
Last edited by klippy; 01-01-2015 at 16:52.
Reason: typo