Added music code

core/src/love/distributedrebirth/demo4d/music/MusicManager.java

@@ -0,0 +1,131 @@
+package love.distributedrebirth.demo4d.music;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.audio.Music;
+import com.badlogic.gdx.audio.Music.OnCompletionListener;
+import com.badlogic.gdx.files.FileHandle;
+
+public class MusicManager {
+
+	private final MusicSong introSong;
+	private final MusicSong creditsSong;
+	private final List<MusicSong> backgroundSongs;
+	private final NextSongListener nextSongListener;
+	private MusicSong currentSong = null;
+	
+	public MusicManager() {
+		backgroundSongs = new ArrayList<>();
+		introSong = new MusicSong(Gdx.audio.newMusic(Gdx.files.internal("music/panoramacircle-waterfowl.mp3")),"panoramacircle-waterfowl");
+		creditsSong = new MusicSong(Gdx.audio.newMusic(Gdx.files.internal("music/idtech-doom-sigil.mp3")), "idtech-doom-sigil");
+		nextSongListener = new NextSongListener();
+	}
+	
+	public void addBackgroundMusic(FileHandle file) {
+		Music music = Gdx.audio.newMusic(file);
+		music.setOnCompletionListener(nextSongListener);
+		backgroundSongs.add(new MusicSong(music, file.name()));
+	}
+	
+	public void init() {
+		addBackgroundMusic(Gdx.files.internal("music/sanctumwave-risen.mp3"));
+		addBackgroundMusic(Gdx.files.internal("music/sanctumwave-devine-intellect.mp3"));
+		addBackgroundMusic(Gdx.files.internal("music/theselfhelpgroup-temple-os.mp3"));
+		addBackgroundMusic(Gdx.files.internal("music/sanctumwave-nightwalk.mp3"));
+	}
+	
+	public void dispose() {
+		introSong.music.dispose();
+		creditsSong.music.dispose();
+		for (MusicSong song:backgroundSongs) {
+			song.music.dispose();
+		}
+	}
+	
+	public List<MusicSong> getBackgroundSongs() {
+		return backgroundSongs;
+	}
+	
+	public String getCurrentSongName() {
+		if (currentSong != null) {
+			return currentSong.getName();
+		} else {
+			return "None";
+		}
+	}
+	
+	public void stop() {
+		if (currentSong != null) {
+			currentSong.music.stop();
+		}
+	}
+	
+	public void play(MusicSongType type) {
+		MusicSong nextSong = null;
+		if (MusicSongType.INTRO.equals(type)) {
+			nextSong = introSong;
+		} else if (MusicSongType.CREDITS.equals(type)) {
+			nextSong = creditsSong;
+		} else {
+			int currentBackground = backgroundSongs.indexOf(currentSong);
+			if (currentBackground == -1) {
+				nextSong = backgroundSongs.get(0);
+			} else {
+				nextSong = currentSong;
+			}
+		}
+		play(nextSong);
+	}
+	
+	public void play(MusicSong song) {
+		if (song == null) {
+			return;
+		}
+		stop();
+		currentSong = song;
+		currentSong.music.play();
+	}
+	
+	class NextSongListener implements OnCompletionListener {
+
+		@Override
+		public void onCompletion(Music music) {
+			next();
+			play(currentSong);
+		}
+	}
+	
+	public void next() {
+		int currentBackground = backgroundSongs.indexOf(currentSong);
+		if (currentBackground == -1) {
+			return; // some other
+		}
+		if (currentBackground == backgroundSongs.size()-1) {
+			currentBackground = -1; // loop to start
+		}
+		boolean play = currentSong.music.isPlaying();
+		currentSong.music.stop();
+		currentSong = backgroundSongs.get(currentBackground+1);
+		if (play) {
+			currentSong.music.play();
+		}
+	}
+	
+	public void prev() {
+		int currentBackground = backgroundSongs.indexOf(currentSong);
+		if (currentBackground == -1) {
+			return; // some other
+		}
+		if (currentBackground == 0) {
+			currentBackground = backgroundSongs.size(); // loop to end
+		}
+		boolean play = currentSong.music.isPlaying();
+		currentSong.music.stop();
+		currentSong = backgroundSongs.get(currentBackground-1);
+		if (play) {
+			currentSong.music.play();
+		}
+	}
+}

core/src/love/distributedrebirth/demo4d/music/MusicPlayerRenderer.java

@@ -0,0 +1,96 @@
+package love.distributedrebirth.demo4d.music;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.files.FileHandle;
+
+import imgui.ImGui;
+import imgui.flag.ImGuiCond;
+import imgui.flag.ImGuiSelectableFlags;
+import imgui.flag.ImGuiTableColumnFlags;
+import imgui.flag.ImGuiTableFlags;
+import imgui.type.ImBoolean;
+import love.distributedrebirth.demo4d.ImGuiRendererMain;
+import love.distributedrebirth.demo4d.Demo4DMain;
+import net.spookygames.gdx.nativefilechooser.NativeFileChooserCallback;
+import net.spookygames.gdx.nativefilechooser.NativeFileChooserConfiguration;
+
+public class MusicPlayerRenderer extends ImGuiRendererMain {
+
+	public MusicPlayerRenderer(Demo4DMain main) {
+		super(main);
+	}
+	
+	@Override
+	public void render(ImBoolean widgetOpen) {
+		ImGui.setNextWindowPos(100, 100, ImGuiCond.FirstUseEver);
+		ImGui.setNextWindowSize(320, 240, ImGuiCond.FirstUseEver);
+		ImGui.begin("Music Player", widgetOpen);
+		
+		ImGui.text("Current Song:");
+		ImGui.sameLine();
+		ImGui.text(main.music.getCurrentSongName());
+		ImGui.separator();
+		if (ImGui.button("Play")) {
+			main.music.play(MusicSongType.BACKGROUND);
+		}
+		ImGui.sameLine();
+		if (ImGui.button("<")) {
+			main.music.prev();
+		}
+		ImGui.sameLine();
+		if (ImGui.button(">")) {
+			main.music.next();
+		}
+		ImGui.sameLine();
+		if (ImGui.button("Stop")) {
+			main.music.stop();
+		}
+		ImGui.sameLine();
+		if (ImGui.button("Add")) {
+			NativeFileChooserConfiguration conf = new NativeFileChooserConfiguration();
+			conf.directory = Gdx.files.absolute(System.getProperty("user.home"));
+			conf.mimeFilter = "audio/*";
+			conf.title = "Choose audio file";
+			main.fileChooser.chooseFile(conf, new NativeFileChooserCallback() {
+				
+				@Override
+				public void onFileChosen(FileHandle file) {
+					main.music.addBackgroundMusic(file);
+				}
+				
+				@Override
+				public void onCancellation() {
+				}
+				
+				@Override
+				public void onError(Exception exception) {
+				}
+			});
+
+		}
+		int flags = ImGuiTableFlags.ScrollX | ImGuiTableFlags.RowBg | ImGuiTableFlags.BordersOuter | ImGuiTableFlags.BordersV;
+		ImGui.beginTable("playlist", 3, flags);
+		ImGui.tableSetupColumn("#", ImGuiTableColumnFlags.NoHide);
+		ImGui.tableSetupColumn("Play");
+		ImGui.tableSetupColumn("Name");
+		ImGui.tableHeadersRow();
+		int i=1;
+		for (MusicSong song:main.music.getBackgroundSongs()) {
+			ImGui.pushID(i);
+			ImGui.tableNextRow();
+			ImGui.tableNextColumn();
+			ImGui.selectable(""+i, song.isPlaying(), ImGuiSelectableFlags.None);
+			ImGui.tableNextColumn();
+			if (ImGui.smallButton(">")) {
+				main.music.play(song);
+			}
+			ImGui.tableNextColumn();
+			ImGui.selectable(song.getName(), song.isPlaying(), ImGuiSelectableFlags.None);
+			ImGui.popID();
+			i++;
+		}
+		ImGui.endTable();
+		
+		ImGui.end();
+	}
+}

core/src/love/distributedrebirth/demo4d/music/MusicSong.java

@@ -0,0 +1,21 @@
+package love.distributedrebirth.demo4d.music;
+
+import com.badlogic.gdx.audio.Music;
+
+public class MusicSong {
+	protected final Music music;
+	private final String name;
+	
+	public MusicSong(Music music, String name) {
+		this.music = music;
+		this.name = name;
+	}
+	
+	public String getName() {
+		return name;
+	}
+	
+	public boolean isPlaying() {
+		return music.isPlaying();
+	}
+}

core/src/love/distributedrebirth/demo4d/music/MusicSongType.java

@@ -0,0 +1,7 @@
+package love.distributedrebirth.demo4d.music;
+
+public enum MusicSongType {
+	INTRO,
+	CREDITS,
+	BACKGROUND
+}