added realtime day night cycle based on system time

assets/shotgun_pellet.tscn

@@ -47,13 +47,13 @@ surface_material_override/0 = SubResource("StandardMaterial3D_we7vv")
 shape = SubResource("SphereShape3D_55xw1")
 
 [node name="Timer" type="Timer" parent="."]
-wait_time = 10.0
+wait_time = 3.0
 one_shot = true
 autostart = true
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 libraries = {
-"": SubResource("AnimationLibrary_2bjxd")
+&"": SubResource("AnimationLibrary_2bjxd")
 }
 
 [connection signal="body_entered" from="." to="." method="_on_body_entered"]