Add new assets and implement minimap functionality

- Added new image assets for game over screens: `game_over_dead_bg.png`, `game_over_victory_bg.png`, and their respective Aseprite files.
- Introduced a new `Minimap` class to manage torch placement and rendering on the minimap.
- Implemented methods for adding and removing torches, updating the grid area, and drawing the minimap based on the current state of the game.
- Enhanced the minimap display with color coding for walls, empty spaces, and torches.

game/hud/health.rb

@@ -5,6 +5,8 @@ class HealthBar
     @max_health = max_health
     @health = max_health
 
+    @heart_image = Gosu::Image.new("assets/images/heart.png", retro: true)
+
     $bus.on(:blast) do |x, y, radius, damage, safety|
       next if safety == :safe
 
@@ -21,6 +23,7 @@ class HealthBar
     @health -= amount
     if @health <= 0
       @health = 0
+      $is_dead = true
       $bus.emit(:change_scene, GameOver)
     end
   end
@@ -32,10 +35,12 @@ class HealthBar
 
   def draw
     # Draw the background of the health bar (red)
-    Gosu.draw_rect(30, 10, 100, 10, Gosu::Color::RED)
+    Gosu.draw_rect(SCREEN_SIZE[0] - 100 - 10, 180, 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(30, 10, health_width, 10, Gosu::Color::GREEN)
+    Gosu.draw_rect(SCREEN_SIZE[0] - 100 - 10, 180, health_width, 10, Gosu::Color::GREEN)
+
+    @heart_image.draw(SCREEN_SIZE[0] - 100 - 20, 173, 1, 1.5, 1.5)
   end
 end