So. A while ago, while trying to prevent hogs blowtorching getting turned around, unc0rr altered the old range of blowtorch from 1/8th of 180° up or down, to a 4° gain in upwards and a -4° loss in downwards. He also made it so that starting tunnels could fail to erase sufficient terrain, trapping hogs. Here are a couple of workarounds to more closely approximate old behaviour (do some initial erasure, adjust min/max angles)

LIBRARY "openalbridge"
EXPORTS
	openal_init
	openal_close
	openal_ready
	openal_loadfile
	openal_playsound	
	openal_pausesound
	openal_stopsound
	openal_playsound_loop
	openal_stopsound_free
	openal_freesound
	openal_toggleloop
	openal_setvolume
	openal_setglobalvolume
	openal_togglemute
	openal_fade
	openal_fadein
	openal_fadeout