git.r.bdr.sh - rbdr/super-polarity/blob - Super Polarity/ScreenManager.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Linq;
   4 using System.Text;
   5 using Microsoft.Xna.Framework;
   6 using Microsoft.Xna.Framework.Graphics;
   7
   8 namespace SuperPolarity
   9 {
  10     static class ScreenManager
  11     {
  12         static Stack<Screen> Screens;
  13         static SuperPolarity Game;
  14
  15         static ScreenManager()
  16         {
  17             Screens = new Stack<Screen>();
  18         }
  19
  20         static public void Push(Screen screen)
  21         {
  22             if (Screens.Count > 0)
  23             {
  24                 Screens.Peek().Active = false;
  25             }
  26
  27             screen.LoadContent();
  28             screen.Active = true;
  29             Screens.Push(screen);
  30         }
  31
  32         static public void Pop()
  33         {
  34             var screen = Screens.Pop();
  35             screen.Active = false;
  36             screen.CleanUp();
  37             Screens.Peek().Active = true;
  38         }
  39
  40         static public void Update(GameTime gameTime)
  41         {
  42             Screens.Peek().Update(gameTime);
  43         }
  44
  45         static public void Draw(SpriteBatch spriteBatch)
  46         {
  47             Screens.Peek().Draw(spriteBatch);
  48         }
  49
  50         internal static void SetGame(SuperPolarity game)
  51         {
  52             Game = game;
  53         }
  54     }
  55 }