Fixed bug with weapons not costing anything server-side

core/src/io/anuke/mindustry/core/NetClient.java

@@ -255,6 +255,7 @@ public class NetClient extends Module {
         });
     }
 
+    @Override
     public void update(){
         if(!Net.client() || !Net.active()) return;
 
@@ -265,6 +266,12 @@ public class NetClient extends Module {
         }
     }
 
+    public void handleUpgrade(Weapon weapon){
+        UpgradePacket packet = new UpgradePacket();
+        packet.id = weapon.ordinal();
+        Net.send(packet, SendMode.tcp);
+    }
+
     public void handleSendMessage(String message){
         ChatPacket packet = new ChatPacket();
         packet.text = message;

core/src/io/anuke/mindustry/core/NetServer.java

@@ -155,6 +155,11 @@ public class NetServer extends Module{
             packet.name = player.name;
             Net.send(packet, SendMode.tcp);
         });
+
+        Net.handleServer(UpgradePacket.class, packet -> {
+            Weapon weapon = Weapon.values()[packet.id];
+            Vars.control.removeItems(weapon.requirements);
+        });
     }
 
     public void handleBullet(BulletType type, Entity owner, float x, float y, float angle, short damage){

core/src/io/anuke/mindustry/net/Packets.java

@@ -114,4 +114,8 @@ public class Packets {
     public enum KickReason{
         kick, invalidPassword
     }
+
+    public static class UpgradePacket{
+        public int id; //weapon ID only, currently
+    }
 }

core/src/io/anuke/mindustry/net/Registrator.java

@@ -34,6 +34,7 @@ public class Registrator {
                 DisconnectPacket.class,
                 ChatPacket.class,
                 KickPacket.class,
+                UpgradePacket.class,
 
                 Class.class,
                 byte[].class,

core/src/io/anuke/mindustry/ui/dialogs/UpgradeDialog.java

@@ -2,8 +2,10 @@ package io.anuke.mindustry.ui.dialogs;
 
 
 import com.badlogic.gdx.graphics.Color;
+import io.anuke.mindustry.Vars;
 import io.anuke.mindustry.core.GameState;
 import io.anuke.mindustry.core.GameState.State;
+import io.anuke.mindustry.net.Net;
 import io.anuke.mindustry.resource.ItemStack;
 import io.anuke.mindustry.resource.Weapon;
 import io.anuke.ucore.core.Draw;
@@ -52,9 +54,7 @@ public class UpgradeDialog extends FloatingDialog{
 			button.getLabelCell().left();
 			button.pack();
 			
-			
 			button.update(()->{
-				
 				if(control.hasWeapon(weapon)){
 					button.setDisabled(true);
 					button.setColor(Color.GRAY);
@@ -128,6 +128,10 @@ public class UpgradeDialog extends FloatingDialog{
 				ui.weaponfrag.updateWeapons();
 				run.listen();
 				Effects.sound("purchase");
+
+				if(Net.active() && Net.client()){
+					Vars.netClient.handleUpgrade(weapon);
+				}
 			});
 		}