Fix distance check mismatch with actual hurt range of the large stone toss. Knockback collisions now match the Hurt collisions. Add a universal knockback function. Release Build 9659.
LOOPING_SOUND_ID,//Store looping sound IDs temporarily with this value. The game automatically cleans this up in Monster::OnDestroy() if you don't, since a monster that dies should not have their looping sound still playing.