add background layers

GitOrigin-RevId: 93a5c7e147

Jumpy.Shared/JumpyGame.cs

@@ -26,6 +26,8 @@ namespace Jumpy {
     FpsCounter fpsCounter = new FpsCounter();
     Player player;
     Texture2D grassland;
+    Texture2D grasslandBg1;
+    Texture2D grasslandBg2;
 
     public JumpyGame() {
       graphics = new GraphicsDeviceManager(this);
@@ -54,6 +56,8 @@ namespace Jumpy {
       font = Content.Load<SpriteFont>("font");
       player = new Player(Content.Load<Texture2D>("player_1x"));
       grassland = Content.Load<Texture2D>("grassland");
+      grasslandBg1 = Content.Load<Texture2D>("grassland_bg1");
+      grasslandBg2 = Content.Load<Texture2D>("grassland_bg2");
     }
 
     // Called once per game. Unloads all game content.
@@ -94,6 +98,12 @@ namespace Jumpy {
       GraphicsDevice.Clear(Color.CornflowerBlue);
       spriteBatch.Begin();
 
+      // Draw background.
+      Rectangle bgSource = new Rectangle(0, grasslandBg1.Height - Camera.Height, Camera.Width, Camera.Height);
+      Rectangle bgTarget = new Rectangle(0, 0, Camera.Width, Camera.Height);
+      spriteBatch.Draw(grasslandBg2, bgTarget, bgSource, Color.White);
+      spriteBatch.Draw(grasslandBg1, bgTarget, bgSource, Color.White);
+
       // Draw player.
       player.Draw(gameTime, spriteBatch);