a mess

core/src/io/anuke/mindustry/Vars.java

@@ -133,6 +133,7 @@ public class Vars{
     public static GlobalData data;
     public static EntityCollisions collisions;
     public static DefaultWaves defaultWaves;
+    public static MusicControl mcont;
 
     public static Control control;
     public static Logic logic;
@@ -208,6 +209,7 @@ public class Vars{
 
         state = new GameState();
         data = new GlobalData();
+        mcont = new MusicControl();
 
         mobile = Core.app.getType() == ApplicationType.Android || Core.app.getType() == ApplicationType.iOS || testMobile;
         ios = Core.app.getType() == ApplicationType.iOS;

core/src/io/anuke/mindustry/core/Control.java

@@ -168,9 +168,6 @@ public class Control implements ApplicationListener{
         Events.on(ZoneConfigureCompleteEvent.class, e -> {
             ui.hudfrag.showToast(Core.bundle.format("zone.config.complete", e.zone.configureWave));
         });
-
-        Musics.menu.setLooping(true);
-       // Musics.menu.play();
     }
 
     void createPlayer(){
@@ -312,6 +309,19 @@ public class Control implements ApplicationListener{
         //autosave global data if it's modified
         data.checkSave();
 
+        if(state.is(State.menu)){
+            if(ui.deploy.isShown()){
+                mcont.silence(); //TODO deploy music
+            }else if(ui.editor.isShown()){
+                mcont.play(Musics.editor);
+            }else{
+                mcont.play(Musics.menu);
+            }
+        }else{
+            //TODO game music
+            mcont.silence();
+        }
+
         if(!state.is(State.menu)){
             input.update();
 

core/src/io/anuke/mindustry/game/MusicControl.java

@@ -1,4 +1,39 @@
 package io.anuke.mindustry.game;
 
+import io.anuke.annotations.Annotations.*;
+import io.anuke.arc.audio.*;
+import io.anuke.arc.math.*;
+import io.anuke.arc.util.*;
+
 public class MusicControl{
+    private static final float finTime = 80f, foutTime = 80f;
+    private @Nullable Music current;
+
+    public void play(@Nullable Music music){
+        if(current == null && music != null){
+            current = music;
+            current.setLooping(true);
+            current.setVolume(0f);
+            current.play();
+        }else if(current == music && music != null){
+            current.setVolume(Mathf.clamp(current.getVolume() + Time.delta()/finTime));
+        }else if(current != null){
+            current.setVolume(Mathf.clamp(current.getVolume() - Time.delta()/foutTime));
+
+            if(current.getVolume() <= 0.01f){
+                current.stop();
+                current = null;
+                if(music != null){
+                    current = music;
+                    current.setVolume(0f);
+                    current.setLooping(true);
+                    current.play();
+                }
+            }
+        }
+    }
+
+    public void silence(){
+        play(null);
+    }
 }