Various optimizations; made healer enemies explode after a while

core/src/io/anuke/mindustry/ui/fragments/HudFragment.java

@@ -215,6 +215,7 @@ public class HudFragment implements Fragment{
 
 		for(int i = 0; i < control.getItems().length; i ++){
 			int amount = control.getItems()[i];
+			if(amount == 0) continue;
 			String formatted = Mindustry.formatter.format(amount);
 			if(amount > 99999999){
 				formatted = "inf";

core/src/io/anuke/mindustry/ui/fragments/WeaponFragment.java

@@ -18,7 +18,7 @@ public class WeaponFragment implements Fragment{
 	public void build(){
 		weapontable = Core.scene.table();
 		weapontable.bottom().left();
-		weapontable.setVisible(()->!GameState.is(State.menu));
+		weapontable.setVisible(()-> !GameState.is(State.menu));
 		
 		if(android){
 			weapontable.remove();