Refactor input handling: replace hardcoded key inputs with configurable key bindings for character movement, inventory navigation, and actions; enhance settings scene with key rebind functionality and add credits scene.

settings/scene.rb

@@ -1,15 +1,76 @@
 class Settings < Scene
   def initialize
     super
-    @font = Gosu::Font.new(24)
+    @font_title = Gosu::Font.new(28, name: "assets/fonts/tn.ttf")
+    @font = Gosu::Font.new(20, name: "assets/fonts/tn.ttf")
+    @selected = 0
+    @waiting_for_key = nil
   end
 
   def draw
-    Gosu.draw_rect(0, 0, SCREEN_SIZE[0], SCREEN_SIZE[1], Gosu::Color::BLACK)
-    @font.draw_text("Settings Scene - Press ESC to return to Menu", 50, 50, 1, 1, 1, Gosu::Color::WHITE)
+    Gosu.draw_rect(0, 0, *SCREEN_SIZE, Gosu::Color.new(0xFF131313))
+
+    title = "Settings"
+    @font_title.draw_text(title, center_x(title), 40, 1, 1, 1, Gosu::Color::YELLOW)
+
+    debug_option = "Debug Mode".ljust(15) + " : " + "#{Config.debug ? 'ON' : 'OFF'}".rjust(12)
+    debug_option = "> #{debug_option} <" if @selected == 0
+    @font.draw_text(debug_option, center_x(debug_option), 90, 1, 1, 1, @selected == 0 ? Gosu::Color::YELLOW : Gosu::Color::WHITE)
+
+    Config.bindings.each_with_index do |opt, i|
+      y = 120 + i * 25
+      selected = (i == @selected - 1)
+
+      text = "#{opt[0].to_s.ljust(15)} : #{Gosu.button_name(opt[1]).rjust(12)}"
+      text = "> #{text} <" if selected
+
+      color = selected ? Gosu::Color::YELLOW : Gosu::Color::WHITE
+      @font.draw_text(text, center_x(text), y, 1, 1, 1, color)
+    end
+
+    if @waiting_for_key
+      msg = "Press a key... (ESC to cancel)"
+      @font.draw_text(msg, center_x(msg), 430, 1, 1, 1, Gosu::Color::GRAY)
+    else
+      hint = "Enter: Select | ESC: Back"
+      @font.draw_text(hint, center_x(hint), 430, 1, 1, 1, Gosu::Color::GRAY)
+    end
   end
 
   def button_down(id, _pos)
-    $bus.emit(:change_scene, Menu) if id == Gosu::KB_ESCAPE
+    # waiting for keybind input
+    if @waiting_for_key
+      if [Gosu::KB_ESCAPE].include?(id)
+        @waiting_for_key = nil
+        return
+      end
+      Config.set_key(@waiting_for_key, id)
+      Config.persist!
+      @waiting_for_key = nil
+      return
+    end
+
+    case id
+    when Gosu::KB_UP
+      @selected = (@selected - 1) % (Config.bindings.size + 1)
+    when Gosu::KB_DOWN
+      @selected = (@selected + 1) % (Config.bindings.size + 1)
+    when Gosu::KB_RETURN
+      if @selected == 0
+        Config.debug = !Config.debug
+        Config.persist!
+      else
+        @waiting_for_key = Config.bindings.keys[@selected]
+      end
+    when Gosu::KB_ESCAPE
+      Config.persist!
+      $bus.emit(:change_scene, Menu)
+    end
+  end
+
+  private
+
+  def center_x(text)
+    (SCREEN_SIZE[0] - @font.text_width(text)) / 2
   end
 end