/Multimedia/Tests/Tutorials.cs

using System;

using Delta.Engine;

using Delta.InputSystem;

using Delta.Rendering.Basics.Fonts;

using Delta.Utilities;

using Delta.Utilities.Datatypes;

using Delta.Utilities.Helpers;

using NUnit.Framework;



namespace Delta.Multimedia.Tests

{

	/// <summary>

	/// Multimedia tutorials to perform simple multimedia tasks like playing back

	/// sounds, music or video files and manipulating properties while doing so.

	/// </summary>

	internal class Tutorials

	{

		#region TestSoundPlayback (Static)

		/// <summary>

		/// Tutorial: Multimedia Tutorial 1: Sound Playback

		/// Difficulty: Easy

		/// Description: Plays back the DefaultSound and allows to modify its

		/// volume. Accepts input from mouse, keyboard, game pads and touch.

		/// Image: http://DeltaEngine.net/Icons/Multimedia.png

		/// </summary>

		[Test, Category("Visual")]

		public static void TestSoundPlayback()

		{

			int currentVolume = 10;



			Sound testSound = new Sound("DefaultSound");

			Application.Start(delegate

			{

				Application.Window.Title = "ActiveChannels=" + Sound.ActiveChannels;



				Font.Default.Draw("Volume: " + (currentVolume * 10) + "%",

					Rectangle.FromCenter(Point.Half, Size.Half));

				Font.Default.Draw(

					"Click, Touch or Press Space or GamePad A to play sound\n" +

					"Use Up/Down to change volume.",

					Rectangle.FromCenter(

						Point.Half + new Point(0, Font.Default.LineHeight * 2),

						Size.Half));



				if (Input.Touch.TouchReleased ||

				    Input.Mouse.LeftButtonReleased ||

				    Input.GamePad.AReleased ||

				    Input.Keyboard.SpaceReleased)

				{

					testSound.Volume = currentVolume / 10.0f;

					testSound.Play();

				}



				// Volume Up

				if (Input.Keyboard.CursorUpReleased)

				{

					currentVolume = MathHelper.Min(currentVolume + 1, 10);

				}



				// Volume Down

				if (Input.Keyboard.CursorDownReleased)

				{

					currentVolume = MathHelper.Max(currentVolume - 1, 0);

				}

			});

		}

		#endregion



		#region TestMusicPlayback (Static)

		/// <summary>

		/// Tutorial: Multimedia Tutorial 2: Music Playback

		/// Difficulty: Easy

		/// Description: Plays the DefaultMusic file and allows to change the

		/// volume. Also displays some information about the music file.

		/// Image: http://DeltaEngine.net/Icons/Multimedia.png

		/// </summary>

		[Test, Category("Visual")]

		public static void TestMusicPlayback()

		{

			Music music = new Music("DefaultMusic");



			Rectangle stateRect = Rectangle.FromCenter(Point.Half, Size.Half);

			Rectangle volumeRect = Rectangle.FromCenter(

				Point.Half + new Point(0, Font.Default.LineHeight), Size.Half);

			Rectangle timePlayedRect = Rectangle.FromCenter(

				Point.Half + new Point(0, Font.Default.LineHeight * 2), Size.Half);

			float currentVolume = 1.0f;



			Application.Start(delegate

			{

				Font.Default.Draw(

					"Music state: " + music.State + " (press Space to start)",

					stateRect);

				Font.Default.Draw(

					"Volume: " + (currentVolume * 100) + "%" +" (use Up/Down to change)",

					volumeRect);

				Font.Default.Draw(

					"Time played: " + music.TimePlayed + " sec (use Enter to pause)",

					timePlayedRect);



				#region Play

				if (Input.Touch.TouchReleased ||

				    Input.Keyboard.SpaceReleased)

				{

					music.Play();

				}

				#endregion



				#region Stop

				if (Input.Keyboard.EnterReleased)

				{

					music.Stop();

				}

				#endregion



				#region Volume Up

				if (Input.Keyboard.CursorUpReleased)

				{

					currentVolume = MathHelper.Min(currentVolume + 0.1f, 1.0f);

					music.Volume = currentVolume;

				}

				#endregion



				#region Volume Down

				if (Input.Keyboard.CursorDownReleased)

				{

					currentVolume = MathHelper.Max(currentVolume - 0.1f, 0.0f);

					music.Volume = currentVolume;

				}

				#endregion

			});

		}

		#endregion



		#region TestVideoPlayback (Static)

		/// <summary>

		/// Tutorial: Multimedia Tutorial 3: Video Playback

		/// Difficulty: Easy

		/// Description: Test Video playback, works on all platforms. The video

		/// format is very different on each platform (.mpg, .wmv, .avi).

		/// Image: http://DeltaEngine.net/Icons/Multimedia.png

		/// </summary>

		[Test, Category("Visual")]

		public static void TestVideoPlayback()

		{

			// Make sure we have a video module setup, otherwise video playback will

			// not work (Vlc is disabled by default on Windows, but should be set for

			// this project).

			Assert.False(String.IsNullOrEmpty(Settings.Modules.VideoModule),

				"This test needs a video module setup in the settings to work!");



			Video deltaIntro = Video.Create("DeltaEngineLogo");

			deltaIntro.Ended += delegate

			{

				Log.Info(

					"TestVideoPlayback: Playing intro has ended with state '" +

					deltaIntro.State + "'.", false);

			};



			bool isFirstRun = true;

			Application.Start(delegate

			{

				Font.DrawTopLeftInformation("Video state: " + deltaIntro.State);



				if ((isFirstRun ||

				     Input.Keyboard.SpaceReleased) &&

				    deltaIntro.State != MediaState.Playing)

				{

					isFirstRun = false;



					Log.Info("TestVideoPlayback: Start playing video", false);

					deltaIntro.Play();

				}

			});

		}

		#endregion



		#region TestPlaylistPlayback (Static)

		/// <summary>

		/// Tutorial: Multimedia Tutorial 4: Playlist Playback

		/// Difficulty: Easy

		/// Description: Test Music Playlist playback, works on all platforms.

		/// Image: http://DeltaEngine.net/Icons/Multimedia.png

		/// </summary>

		[Test, Category("Visual")]

		public static void TestPlaylistPlayback()

		{

			MusicPlaylist playlist = new MusicPlaylist();

			playlist.Add(new Music("DefaultMusic"));

			playlist.Add(new Music("DefaultMusic")

			{

				Volume = 0.5f,

			});

			playlist.Add(new Music("DefaultMusic"));

			playlist.Add(new Music("DefaultMusic")

			{

				Volume = 0.5f,

			});



			bool isFirstRun = true;

			Application.Start(delegate

			{

				Font.DrawTopLeftInformation(

					"Playlist index: " +

					(playlist.CurrentIndex + 1) + "/" + playlist.Count);



				if (isFirstRun ||

				    Input.Keyboard.SpaceReleased)

				{

					isFirstRun = false;

					playlist.Play();

				}

			});

		}

		#endregion

	}

}