function action_sound2d:get_source_positions ()
    local actor = db.actor
    local dir = actor:direction ()
    dir.x = 0.0
    local dir_left = vector_rotate_x (dir, 90)
    local dir_right = vector_rotate_x(dir, -90)
    dir_left:normalize ()
    dir_right:normalize () --ðàññ÷èòàåì âûñîòó
    local pos = actor:position ()
    pos.x = pos.x + 1.5  --this seems to position form player. + = to the left
	local pos_l = pos
    return pos_l:add (dir_left:mul (0)), pos:add (dir_right:mul (0))
end