use num1 to open gates

src/main.rs

@@ -1,6 +1,7 @@
 mod alien;
 mod camera;
 mod cash;
+mod gates;
 mod heads_ui;
 mod player;
 mod tb_entities;
@@ -58,6 +59,7 @@ fn main() {
     app.add_plugins(cash::plugin);
     app.add_plugins(player::plugin);
     app.add_plugins(heads_ui::plugin);
+    app.add_plugins(gates::plugin);
 
     app.insert_resource(AmbientLight {
         color: Color::WHITE,