OnReverb
OnReverb(B_REVERB_NONE);
OnReverb(B_REVERB_CLOSET);
OnReverb(B_REVERB_GARAGE);
OnReverb(B_REVERB_BALLROOM);
OnReverb(B_REVERB_CAVERN);
OnReverb(B_REVERB_DUNGEON);
void OnReverb(reverb_mode mode);