game: add weapon base and sword

scenes/managers/enemy_manager.gd

@@ -26,11 +26,13 @@ func _on_timer_timeout() -> void:
 		new_enemy.target = target
 		add_child(new_enemy)
 
+
 func _on_stop_spawning(val: bool):
 	if val:
 		timer.stop()
 	elif timer.is_stopped():
 		timer.start()
 
+
 func _on_set_spawn_rate(val: float):
 	timer.wait_time = 1 / val

scenes/managers/projectile_manager.tscn

@@ -0,0 +1,3 @@
+[gd_scene format=3 uid="uid://c2o1lpm4pimpr"]
+
+[node name="ProjectileManager" type="Node2D"]