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/traps/shrodingers_mine.rb

@@ -0,0 +1,16 @@
+require_relative 'base'
+
+class ShrodingersMine < Trap
+  def initialize(x, y)
+    super(x, y)
+    @sprite = Gosu::Image.new("assets/images/shrodingers_mine.png", retro: true)
+  end
+
+  def stepped_on(entity)
+    return false if entity == :character # shrodingers mine is safe for the player, so don't destroy it or cause a blast if the player steps on it
+    if rand < 0.7 # 70% chance to be a landmine, 30% chance to be a dud
+      $bus.emit(:blast, @x, @y, 50, 50, :safe) # blast radius of 50 and damage of 50, and always safe for the player
+    end
+    true # to destroy the trap
+  end
+end