iOS fixes

core/src/io/anuke/mindustry/entities/effect/Decal.java

@@ -31,5 +31,10 @@ public abstract class Decal extends TimedEntity implements BelowLiquidTrait, Dra
         return groundEffectGroup;
     }
 
+    @Override
+    public float fin() {
+        return time / lifetime();
+    }
+
     abstract void drawDecal();
 }

ios/robovm.properties

@@ -1,6 +1,6 @@
-app.version=3.5
+app.version=4.0
 app.id=io.anuke.mindustry
 app.mainclass=io.anuke.mindustry.IOSLauncher
 app.executable=IOSLauncher
-app.build=11
+app.build=14
 app.name=Mindustry