fix sfx on npc

snowdogs.p8

@@ -429,6 +429,8 @@ function npc_upd()
 			npc.draw = draw_fan
 			npc.collide = heart
 			npc.sound = 7
+		else
+			npc.draw = nil
 		end
 		npc.last = distance
 		npc.y = rnd(40)
@@ -438,7 +440,6 @@ function npc_upd()
 		if rnd() < 0.5 then
 			npc.x += 140
 			npc.dx *= -1
-			sound(7)
 		end
 	end
 
@@ -451,6 +452,7 @@ function npc_upd()
 	if npc.y > 80 and npc.x+8 > l and npc.x < r and npc.collide != nil then
 		npc.collide()
 		npc.collide = nil
+		sfx(npc.sound)
 	end
 end