Added Close game state, tweaked Boot state

lib/states/game_states/close.rb

@@ -0,0 +1,62 @@
+class IMICFPS
+  class Close < GameState
+    def setup
+      @primary_color = Gosu::Color.rgba(255, 127, 0, 200)
+      @accent_color = Gosu::Color.rgba(155, 27, 0, 200)
+
+      @color_step = 10
+      @transparency = 200
+      @bar_size = 50
+      @slope = 250
+
+      @logo = get_image(IMICFPS::GAME_ROOT_PATH + "/static/logo.png")
+
+      @start_time = Gosu.milliseconds
+      @time_to_live = 3_000
+
+      window.needs_cursor = false
+    end
+
+    def draw
+      menu_background(@primary_color, @color_step, @transparency, @bar_size, @slope.round)
+
+      fraction_left = 1 - ((Gosu.milliseconds - @start_time) / (@time_to_live - 200).to_f)
+
+      Gosu.draw_quad(
+        0, 0, @primary_color,
+        window.width, 0, @primary_color,
+        window.width, window.height, @accent_color,
+        0, window.height, @accent_color
+      )
+
+      Gosu.draw_circle(
+        window.width / 2,
+        window.height / 2,
+        @logo.width / 2, 128, Gosu::Color.new(0x11ffffff)
+      )
+
+      Gosu.draw_arc(
+        window.width / 2,
+        window.height / 2,
+        @logo.width / 2, fraction_left.clamp(0.0, 1.0), 128, 8, Gosu::Color.new(0x33ff8800)
+      )
+
+      @logo.draw(window.width / 2 - @logo.width / 2, window.height / 2 - @logo.height / 2, 0)
+
+      fill(Gosu::Color.rgba(0,0,0, 255 * (1.1 - fraction_left)))
+    end
+
+    def update
+      window.close! if Gosu.milliseconds - @start_time >= @time_to_live
+      @slope -= 25 * window.dt
+    end
+
+    def button_down(id)
+      if id == Gosu::KbEscape or
+        (id >= Gosu::GP_LEFT and id >= Gosu::GP_BUTTON_15) or
+        id == Gosu::MsLeft
+        window.close!
+      end
+    end
+  end
+end