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  • 1. Mohammad Shaker mohammadshaker.com @ZGTRShaker 2011, 2012, 2013, 2014 XNA Game Development L06 – Input, Audio and Video Playback
  • 2. Input Keyboard, Mouse, Touch, Joystick, Sensors, etc.
  • 3. Keyboard Input
  • 4. Keyboard Input • Why static? KeyboardState state = Keyboard.GetState();
  • 5. Keyboard Input • Using Keyboard states KeyboardState state = Keyboard.GetState(); if(state.IsKeyDown(Keys.Left)) { // do something here }
  • 6. Keyboard Input • Using Keyboard states bool leftArrowKeyDown = state.IsKeyDown(Keys.Left); if(state.IsKeyDown(Keys.Left)) { // do something here }
  • 7. Keyboard Input • Using Keyboard states KeyboardState state = Keyboard.GetState(); if(state.IsKeyDown(Keys.Left)) { // do something here }
  • 8. Keyboard Input • Using Keyboard states KeyboardState state = Keyboard.GetState(); if(state.IsKeyDown(Keys.Left)) { // do something here }
  • 9. Keyboard Input - Checking for Key Presses if(state.IsKeyDown(Keys.Left)) { // do something here }
  • 10. Keyboard Input - Checking for Key Presses if(state.IsKeyDown(Keys.Left)) { // do something here }
  • 11. Keyboard Input - Checking for Key Presses Keys[] pressedKeys = state.GetPressedKeys();
  • 12. Keyboard Input - Key Modifiers if( ( state.IsKeyDown(Keys.LeftControl)|| state.IsKeyDown(Keys.RightControl) ) && state.IsKeyDown(Keys.C) ) { // Do something here when Ctrl-C is pressed }
  • 13. Mouse Input
  • 14. Mouse Input - Showing the Mouse this.IsMouseVisible = true;
  • 15. Mouse Input - Mouse Input? MouseState mouseState = Mouse.GetState(); if(mouseState.LeftButton == ButtonState.Pressed) { // Do whatever you want here }
  • 16. Mouse Input - Mouse Input? • Mouse built-in methods – LeftMouseButton – MiddleMouseButton – RightMouseButton – XButton1 – XButton2 – X – Y – ScrollWheelValue
  • 17. Mouse Input - Location • Getting Location int x = mouseState.X; int y = mouseState.Y; Mouse.SetPosition(xLocation, yLocation); • Setting Location
  • 18. Xbox(Or Other!) Controller Input
  • 19. Controller Input
  • 20. Controller Input • GamePadState gamePadState = GamePad.GetState(PlayerIndex.One); if(gamePadState.IsConnected) { // then it is connected, and we can do stuff here } if(gamePadState.Buttons.X == ButtonState.Pressed) { // do something }
  • 21. Controller Input float maxSpeed = 0.1f; float changeInAngle = gamePadState.Thumbsticks.Left.X * maxSpeed; // this variable is defined elsewhere angle += changeInAngle;
  • 22. Controller Input – Vibration effect!
  • 23. Controller Input – Vibration Cool effect! GamePad.SetVibration(PlayerIndex.One, 1.0f, 1.0f);
  • 24. Audio
  • 25. Audio • Audio in XNA • Audio Suggestions for Games • A Simple Way to Play Sound Effects in XNA • A Simple Way to Play Background Music in XNA • Using XACT • Using XACT Projects in an XNA Game • XACT Sound Loops • 3D Audio Effects: Location • 3D Audio Effects: Attenuation based on Distance
  • 26. Audio in XNA • The Concept
  • 27. Audio Suggestions For Games • Audio Suggestions For Games – royalty free music in google.com – http://www.incompetech.com/m/c/royalty-free/ – http://www.flashkit.com/ • Use sound in your game. It adds a lot to the game. Don't just ignore it. ( Not in our uni :( )
  • 28. Playing Sound Effects • Adding Sound Effects to your Game – Managing Content!
  • 29. Playing Sound Effects • WAV Audio File (.wav extension) private SoundEffect effect; effect = Content.Load<SoundEffect>("SoundFX/ExtraLife");
  • 30. Playing Sound Effects • WAV Audio File (.wav extension) private SoundEffect effect; effect = Content.Load<SoundEffect>("SoundFX/ExtraLife"); effect.Play(); float volume = 1.0f; effect.Play(volume); float volume = 1.0f; float pitch = -1.0f; float pan = -1.0f; bool loop = true; effect.Play(volume, pitch, pan, loop);
  • 31. Playing Sound Effects • SoundEffectInstances class SoundEffectInstance effectInstance = effect1.Play(); effectInstance.Stop();
  • 32. Playing Sound Effects • SoundEffectInstances class SoundEffectInstance effectInstance = effect1.Play(); effectInstance.Stop();
  • 33. Playing Background Music • Using the Song and MediaPlayer Classes to Play Audio Song song = Content.Load<Song>("song_title"); // Put the name of your song here instead of "song_title" MediaPlayer.Play(song); MediaPlayer.IsRepeating = true;
  • 34. Using XACT • Cross-platform Audio Creation Tool • The concept • Using XACT – Using XACT – Using XACT Projects in an XNA Game – XACT Sound Loops – 3D Audio Effects: Location – 3D Audio Effects: Attenuation based on Distance
  • 35. Using XACT • Small Tutorials – http://rbwhitaker.wikidot.com/audio-tutorials • http://rbwhitaker.wikidot.com/using-xact • http://rbwhitaker.wikidot.com/playing-sound • http://rbwhitaker.wikidot.com/xact-sound-loops • http://rbwhitaker.wikidot.com/3d-audio-effects-location – Books • Microsoft Book • Aaron Reed (O’Reilly)
  • 36. Video Playback
  • 37. Video Playback • Loading the Video in XNA, Game1 Global Scope Video video; VideoPlayer player;
  • 38. Video Playback • Loading the Video in XNA, Game1 Global Scope • LoadContent() Video video; VideoPlayer player; video = Content.Load<Video>("AVideoToPlayback"); player = new VideoPlayer();
  • 39. Video Playback • Starting the Video player.Play(video);
  • 40. Video Playback • Starting the Video • Update() player.Play(video); if (player.State == MediaState.Stopped) { player.IsLooped = true; player.Play(video); }
  • 41. Video Playback • Looping player.IsLooped = true;
  • 42. Video Playback • Drawing the Video, Draw() Texture2D videoTexture = null; if (player.State!= MediaState.Stopped) videoTexture = player.GetTexture();
  • 43. Video Playback • Drawing the Video, Draw() Texture2D videoTexture = null; if (player.State!= MediaState.Stopped) videoTexture = player.GetTexture();
  • 44. Video Playback • Drawing the Video, Draw() Texture2D videoTexture = null; if (player.State!= MediaState.Stopped) videoTexture = player.GetTexture();
  • 45. Video Playback • Drawing the Video, Draw() Texture2D videoTexture = null; if (player.State!= MediaState.Stopped) videoTexture = player.GetTexture();
  • 46. Video Playback • Drawing the Video, Draw() Texture2D videoTexture = null; if (player.State!= MediaState.Stopped) videoTexture = player.GetTexture(); if (videoTexture!= null) { spriteBatch.Begin(); spriteBatch.Draw(videoTexture, new Rectangle(0, 0, 400, 300), Color.White); spriteBatch.End(); }