XNA L06–Input, Audio and Video Playback
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This document provides an overview of input, audio, and video playback in XNA game development. It discusses keyboard, mouse, and controller input methods in XNA. It also covers playing sound effects and background music using the SoundEffect and Song classes, as well as the more advanced XACT audio engine. The document concludes with instructions for loading and playing back video files in an XNA game.
![Keyboard Input - Checking for Key Presses
Keys[] pressedKeys = state.GetPressedKeys();](https://image.slidesharecdn.com/xnal05inputaudioandvideoplayback-140211152315-phpapp02/85/XNA-L06-Input-Audio-and-Video-Playback-11-320.jpg)
XNA L06–Input, Audio and Video Playback
- 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.
- 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(); }