Implement traps system: add Trap, Landmine, and EventHorizon classes with collision detection and interaction logic; integrate trap handling in the game scene and enemy AI.

game/weapons/handler.rb

@@ -26,7 +26,7 @@ class WeaponHandler
         weapon.attack(direction)
       elsif Gosu.button_down?(Gosu::MS_LEFT)
         player_x, player_y = $bus.get(:player_position)
-        mouse_x, mouse_y = $bus.get(:mouse_position)
+        mouse_x, mouse_y = $bus.get(:mouse_pos)
         direction = Math.atan2(mouse_y - player_y, mouse_x - player_x)
         weapon.attack(direction)
       end

game/weapons/lorentz_field.rb

@@ -1,17 +1,16 @@
 class LorentzField
   BASE_TIME = 25 # Base time for the field to be active in seconds
 
-  def initialize(bus)
-    @bus = bus
+  def initialize
     @time = 0
     @active = false
     @font = Gosu::Font.new(24, name: "assets/fonts/tn.ttf")
 
-    @bus.on(:lorentz_field?) do
+    $bus.on(:lorentz_field?) do
       next @active
     end
 
-    @bus.on(:lorentz_field) do
+    $bus.on(:lorentz_field) do
       if @active
         t = @time
         remaining = BASE_TIME - t
@@ -34,10 +33,10 @@ class LorentzField
 
   def attack(_direction)
     return if @active
-    @bus.emit(:consume, :lorentz_field, 1)
+    $bus.emit(:consume, :lorentz_field, 1)
     @active = true
     @time = 0
-    @bus.emit(:lorentz_field!, true)
+    $bus.emit(:lorentz_field!, true)
   end
 
   def update(dt)
@@ -47,7 +46,7 @@ class LorentzField
     if @time >= BASE_TIME
       @time = 0
       @active = false
-      @bus.emit(:lorentz_field!, false)
+      $bus.emit(:lorentz_field!, false)
     end
   end