Added tractor beam turret

core/src/mindustry/input/Binding.java

@@ -34,7 +34,7 @@ public enum Binding implements KeyBind{
     schematic_flip_y(KeyCode.x),
     schematic_menu(KeyCode.t),
 
-    category_prev(KeyCode.comma),
+    category_prev(KeyCode.comma, "blocks"),
     category_next(KeyCode.period),
 
     block_select_left(KeyCode.left),

core/src/mindustry/input/InputHandler.java

@@ -150,7 +150,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
             item,
             amount,
             player.x + Angles.trnsx(player.unit().rotation + 180f, backTrns), player.y + Angles.trnsy(player.unit().rotation + 180f, backTrns),
-            new Vec2(tile.x() + stackTrns.x, tile.y() + stackTrns.y),
+            new Vec2(tile.x + stackTrns.x, tile.y + stackTrns.y),
             () -> tile.handleStack(item, accepted, player.unit())
         );
     }