Added main menu, added loading screen, hacked and chiseled things until I could load models without attaching to a gameobject.

lib/states/menu.rb

@@ -1,9 +1,126 @@
 class IMICFPS
   class Menu < GameState
-    def title(text, color = Gosu::Color.rgba(127, 64, 0, 200))
+    def initialize
+      @elements = []
+      @size = 50
+      @slope = 250
+      @color_step = 10
+      @base_color = Gosu::Color.rgb(255, 127, 0)
+      super
     end
 
-    def link(text, color = Gosu::Color::BLUE, &block)
+    def title(text, color = @base_color)
+      @elements << Text.new(text, color: color, size: 100, x: 0, y: 15, alignment: :center)
+    end
+
+    def link(text, color = Gosu::Color.rgb(0,127,127), &block)
+      text = Text.new(text, color: color, size: 50, x: 0, y: 100+(60*@elements.count), alignment: :center)
+      @elements << Link.new(text, self, block)
+    end
+
+    def draw
+      @background ||= Gosu.record(Gosu.screen_width, Gosu.screen_height) do
+        ((Gosu.screen_height+@slope)/@size).times do |i|
+          fill_quad(
+            0, i*@size,
+            0, @slope+(i*@size),
+            $window.width/2, (-@slope)+(i*@size),
+            $window.width/2, i*@size,
+            Gosu::Color.rgba(@base_color.red-i*@color_step, @base_color.green-i*@color_step, @base_color.blue-i*@color_step, 200)
+          )
+          fill_quad(
+            $window.width, i*@size,
+            $window.width, @slope+(i*@size),
+            $window.width/2, (-@slope)+(i*@size),
+            $window.width/2, i*@size,
+            Gosu::Color.rgba(@base_color.red-i*@color_step, @base_color.green-i*@color_step, @base_color.blue-i*@color_step, 200)
+          )
+        end
+      end
+
+      @background.draw(0, 0, 0)
+
+      # Box
+      draw_rect(
+        $window.width/4, 0,
+        $window.width/2, $window.height,
+        Gosu::Color.rgba(100, 100, 100, 150)
+        # Gosu::Color.rgba(@base_color.red+@color_step, @base_color.green+@color_step, @base_color.blue+@color_step, 200)
+      )
+
+      # Texts
+      @elements.each do |e|
+        e.draw
+      end
+
+      # Cursor
+      fill_quad(
+        mouse_x, mouse_y,
+        mouse_x+16, mouse_y+16,
+        mouse_x, mouse_y+16,
+        mouse_x, mouse_y+16,
+        Gosu::Color::RED, Float::INFINITY
+      )
+    end
+
+    def update
+      @elements.each do |e|
+        e.update
+      end
+    end
+
+    def fill_quad(x1, y1, x2, y2, x3, y3, x4, y4, color = Gosu::Color::WHITE, z = 0, mode = :default)
+      draw_quad(
+        x1,y1, color,
+        x2,y2, color,
+        x3,y3, color,
+        x4,y4, color,
+        z, mode
+        )
+    end
+
+    def button_up(id)
+      close if id == Gosu::KbEscape
+      if Gosu::MsLeft
+        @elements.each do |e|
+          next unless e.is_a?(Link)
+          if mouse_over?(e)
+            e.clicked
+          end
+        end
+      end
+    end
+
+    def mouse_over?(object)
+      if mouse_x.between?(object.x, object.x+object.width)
+        if mouse_y.between?(object.y, object.y+object.height)
+          true
+        end
+      end
+    end
+
+    class Link
+      attr_reader :text, :block
+      def initialize(text, host, block)
+        @text, @host, @block = text, host, block
+        @color = @text.color
+        @hover_color = Gosu::Color.rgb(255, 127, 0)
+      end
+
+      def update
+        if @host.mouse_over?(self)
+          @text.color = @hover_color
+        else
+          @text.color = @color
+        end
+      end
+
+      def x; text.x; end
+      def y; text.y; end
+      def width; text.width; end
+      def height; text.height; end
+      def draw; text.draw; end
+      def clicked; @block.call; end
     end
   end
 end