Moved rotation to Building

core/src/mindustry/content/Blocks.java

@@ -121,7 +121,7 @@ public class Blocks implements ContentList{
 
         cliff = new Cliff("cliff"){{
             inEditor = false;
-            saveRotation = true;
+            saveData = true;
         }};
 
         //Registers build blocks

core/src/mindustry/content/UnitTypes.java

@@ -266,6 +266,7 @@ public class UnitTypes implements ContentList{
                     splashDamage = 40f;
                     killShooter = true;
                     hittable = false;
+                    collidesAir = true;
                 }};
             }});
         }};