local function get_sound_type(sound_type)
	local s_type = "NIL"
	if bit_and(sound_type, snd_type.weapon) == snd_type.weapon then
		s_type = "WPN"
		if bit_and(sound_type, snd_type.weapon_shoot) == snd_type.weapon_shoot then
			s_type = "WPN_shoot"
		elseif bit_and(sound_type, snd_type.weapon_empty) == snd_type.weapon_empty then
			s_type = "WPN_empty"
		elseif bit_and(sound_type, snd_type.weapon_bullet_hit) == snd_type.weapon_bullet_hit then
			s_type = "WPN_hit"
		elseif bit_and(sound_type, snd_type.weapon_reload) == snd_type.weapon_reload then
			s_type = "WPN_reload"
		end
	elseif bit_and(sound_type, snd_type.item) == snd_type.item then
		s_type = "ITM"
		if bit_and(sound_type, snd_type.item_pick_up) == snd_type.item_pick_up then
			s_type = "ITM_pckup"
		elseif bit_and(sound_type, snd_type.item_drop) == snd_type.item_drop then
			s_type = "ITM_drop"
		elseif bit_and(sound_type, snd_type.item_hide) == snd_type.item_hide then
			s_type = "ITM_hide"
		elseif bit_and(sound_type, snd_type.item_take) == snd_type.item_take then
			s_type = "ITM_take"
		elseif bit_and(sound_type, snd_type.item_use) == snd_type.item_use then
			s_type = "ITM_use"
		end
	elseif bit_and(sound_type, snd_type.monster) == snd_type.monster then
		s_type = "MST"
		if bit_and(sound_type, snd_type.monster_die) == snd_type.monster_die then
			s_type = "MST_die"
		elseif bit_and(sound_type, snd_type.monster_injure) == snd_type.monster_injure then
			s_type = "MST_damage"
		elseif bit_and(sound_type, snd_type.monster_step) == snd_type.monster_step then
			s_type = "MST_step"
		elseif bit_and(sound_type, snd_type.monster_talk) == snd_type.monster_talk then
			s_type = "MST_talk"
		elseif bit_and(sound_type, snd_type.monster_attack) == snd_type.monster_attack then
			s_type = "MST_attack"
		elseif bit_and(sound_type, snd_type.monster_eat) == snd_type.monster_eat then
			s_type = "MST_eat"
		end
	end
	return s_type
end
function reset_hear_callback(st, section)
	local function is_on_sound_line(candidate)
		return string.find( candidate, "^on_sound%d*$" ) ~= nil
	end
	local function add_parsed_data_to_storage(value, st)
		local obj = st.object
		local parsed_params = utils.parse_params(value)
		st.hear_sounds[parsed_params[1]] = st.hear_sounds[parsed_params[1]] or {}
		st.hear_sounds[parsed_params[1]][parsed_params[2]] = {	dist = tonumber(parsed_params[3]),
																power = tonumber(parsed_params[4]),
																condlist = xr_logic.parse_condlist(obj, "hear_callback", "hear_callback", parsed_params[5])}
	end
	local ini = st.ini
	if not ini:section_exist(section) then
		return
	end
 	local n = ini:line_count(section)
	local id, value = "",""
	local category = ""
	st.hear_sounds = {}
	for i=0,n-1 do
		result, id, value  = ini:r_line(section,i,"","")
		if is_on_sound_line(id) then
			add_parsed_data_to_storage(value, st)
		end
	end
end
function hear_callback(obj, who_id, sound_type, sound_position, sound_power)
	local st = db.storage[obj:id()]
	local s_type = get_sound_type(sound_type)
	local story_id = get_object_story_id(who_id) or "any"
	if st.hear_sounds == nil then
		return
	end
	if st.hear_sounds[story_id] and st.hear_sounds[story_id][s_type] then
		local hear_sound_params = st.hear_sounds[story_id][s_type]
		if hear_sound_params.dist >= sound_position:distance_to(obj:position()) and sound_power >= hear_sound_params.power then
			local new_section = xr_logic.pick_section_from_condlist(db.actor, obj, hear_sound_params.condlist)
			if new_section ~= nil and new_section ~= "" then
				xr_logic.switch_to_section(obj, st.ini, new_section)
			elseif new_section == "" then
				st.hear_sounds[story_id][s_type] = nil
			end
		end
	end
end