made bullet with a camera on the end. other tweaks

scripts/room_manager.gd

@@ -20,10 +20,11 @@ var rot_amount : float
 
 # Called when the node enters the scene tree for the first time.
 func _ready():
+	SignalBus.enemy_killed.connect(enemy_in_room_killed)
+	
 	for i in self.get_children():
 		if i.is_in_group("enemy"):
 			enemies.append(i)
-			i.last_enemy_dead.connect(last_enemy_dead)
 		if i.is_in_group("door"):
 			doors.append(i)
 		if i.is_in_group("room_check"):
@@ -66,13 +67,19 @@ func _process(delta):
 				i.loot_amount = 20 #assign loot to the last enemy drop from this section
 				i.last_enemy = true
 
-func last_enemy_dead():
-	if room_lockdown:
-		room_lockdown = false
+func enemy_in_room_killed():
+	var enemy_count = 0
+	for i in self.get_children():
+		if i.is_in_group("enemy") and i.health > 0:
+			enemy_count += 1
 	
-	for i in doors:
-		if !i.door_open:
-			i.open()
+	if enemy_count <= 0:
+		if room_lockdown:
+			room_lockdown = false
+		
+		for i in doors:
+			if !i.door_open:
+				i.open()
 
 func room_entered():
 	if room_lockdown: