Classic data backup dialog

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

@@ -33,6 +33,7 @@ public class SoundLoop{
                 if(volume <= 0.001f){
                     sound.stop(id);
                     id = -1;
+                    return;
                 }
             }
             sound.setPan(id, sound.calcPan(x, y), sound.calcVolume(x, y) * volume * baseVolume);

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

@@ -105,6 +105,7 @@ public class Tutorial{
             void draw(){
                 outline("category-production");
                 outline("block-mechanical-drill");
+                outline("confirmplace");
             }
         },
         blockinfo(() -> event("blockinfo")){