added machinegun turret

objects/environment/turret/turret_bullet.gd

@@ -0,0 +1,18 @@
+extends Node2D
+
+export var speed = 100.0
+
+var direction = Vector2.DOWN
+
+func _physics_process(delta):
+	position += direction * speed * delta
+
+
+func _on_Hitbox_area_entered(area):
+	if area.is_in_group("player"):
+		area.get_parent().die()
+
+
+func _on_Hitbox_body_entered(body):
+	if body is TileMap or body is StaticBody2D:
+		queue_free()