Enhance game over scene: implement GameOver class with options for retry and main menu, add background image, and handle mouse and keyboard interactions.

game/hud/health.rb

@@ -8,7 +8,10 @@ class HealthBar
 
   def take_damage(amount)
     @health -= amount
-    @health = 0 if @health < 0
+    if @health <= 0
+      @health = 0
+      $bus.emit(:change_scene, GameOver)
+    end
   end
 
   def heal(amount)
@@ -16,12 +19,12 @@ class HealthBar
     @health = @max_health if @health > @max_health
   end
 
-  def draw(x, y)
+  def draw
     # Draw the background of the health bar (red)
-    Gosu.draw_rect(x, y, 100, 10, Gosu::Color::RED)
+    Gosu.draw_rect(30, 10, 100, 10, Gosu::Color::RED)
 
     # Draw the foreground of the health bar (green) based on current health
     health_width = (health.to_f / max_health) * 100
-    Gosu.draw_rect(x, y, health_width, 10, Gosu::Color::GREEN)
+    Gosu.draw_rect(30, 10, health_width, 10, Gosu::Color::GREEN)
   end
 end

game/hud/layer.rb

@@ -17,7 +17,7 @@ class HUDLayer
     @hud_bg.draw(0, 0, Float::INFINITY)
 
     @inventory.draw
-    @health.draw(10, 10)
+    @health.draw
 
     @hud_fg.draw(0, 0, Float::INFINITY)
   end