Fixed multiple crashes, fixed version mismatch showing as disconnect

build.gradle

@@ -21,7 +21,7 @@ allprojects {
         appName = "Mindustry"
         gdxVersion = '1.9.8'
         aiVersion = '1.8.1'
-        uCoreVersion = '0eb75cc';
+        uCoreVersion = 'd5ca764';
     }
 
     repositories {

core/src/io/anuke/mindustry/ai/Pathfind.java

@@ -122,6 +122,10 @@ public class Pathfind{
 
 		//go through each spawnpoint, and if it's not found a path yet, update it
 		for(SpawnPoint point : Vars.control.getSpawnPoints()){
+			if(point.request == null){
+				resetPathFor(point);
+			}
+
 			if(!point.request.pathFound){
 				try{
 					if(point.finder.search(point.request, maxTime)){
@@ -161,17 +165,21 @@ public class Pathfind{
 	/**Reset and clear the paths.*/
 	public void resetPaths(){
 		for(SpawnPoint point : Vars.control.getSpawnPoints()){
-			point.finder = new OptimizedPathFinder<>(graph);
-			
-			point.path.clear();
-			
-			point.pathTiles = null;
-			
-			point.request = new PathFinderRequest<>(point.start, Vars.control.getCore(), Vars.control.getDifficulty().heuristic, point.path);
-			point.request.statusChanged = true; //IMPORTANT!
+			resetPathFor(point);
 		}
 	}
 
+	private void resetPathFor(SpawnPoint point){
+		point.finder = new OptimizedPathFinder<>(graph);
+
+		point.path.clear();
+
+		point.pathTiles = null;
+
+		point.request = new PathFinderRequest<>(point.start, Vars.control.getCore(), Vars.control.getDifficulty().heuristic, point.path);
+		point.request.statusChanged = true; //IMPORTANT!
+	}
+
 	/**For an enemy that was just loaded from a save, find the node in the path it should be following.*/
 	void findNode(Enemy enemy){
 		if(enemy.lane >= Vars.control.getSpawnPoints().size || enemy.lane < 0){

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

@@ -291,6 +291,7 @@ public class NetClient extends Module {
             Net.disconnect();
             GameState.set(State.menu);
             Vars.ui.showError("$text.server.kicked." + packet.reason.name());
+            Vars.ui.loadfrag.hide();
         });
 
         Net.handle(WeaponSwitchPacket.class, packet -> {

core/src/io/anuke/mindustry/graphics/BlockRenderer.java

@@ -257,6 +257,7 @@ public class BlockRenderer{
 		for(int tilex = cx * chunksize; tilex < (cx + 1) * chunksize; tilex++){
 			for(int tiley = cy * chunksize; tiley < (cy + 1) * chunksize; tiley++){
 				Tile tile = world.tile(tilex, tiley);
+				if(tile == null) continue;
 				if(floor){
 					if(!(tile.block() instanceof StaticBlock)){
 						tile.floor().draw(tile);

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

@@ -6,8 +6,7 @@ import com.badlogic.gdx.utils.IntMap;
 import com.badlogic.gdx.utils.ObjectMap;
 import com.badlogic.gdx.utils.async.AsyncExecutor;
 import io.anuke.mindustry.Mindustry;
-import io.anuke.mindustry.net.Packets.Connect;
-import io.anuke.mindustry.net.Packets.Disconnect;
+import io.anuke.mindustry.net.Packet.ImportantPacket;
 import io.anuke.mindustry.net.Packets.KickReason;
 import io.anuke.mindustry.net.Streamable.StreamBegin;
 import io.anuke.mindustry.net.Streamable.StreamBuilder;
@@ -20,7 +19,7 @@ import io.anuke.ucore.function.Consumer;
 import java.io.IOException;
 
 public class Net{
-	public static final int version = 12;
+	public static final int version = 13;
 
 	private static boolean server;
 	private static boolean active;
@@ -152,7 +151,7 @@ public class Net{
 				handleClientReceived(builder.build());
 			}
 		}else if(clientListeners.get(object.getClass()) != null){
-			if(clientLoaded || object instanceof Connect || object instanceof Disconnect || object instanceof Streamable){
+			if(clientLoaded || object instanceof ImportantPacket){
 				clientListeners.get(object.getClass()).accept(object);
 			}else{
 				UCore.log("Recieved " + object, "but ignoring data, as client is not loaded.");

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

@@ -15,12 +15,10 @@ import io.anuke.mindustry.world.WorldGenerator;
 import io.anuke.mindustry.world.blocks.Blocks;
 import io.anuke.mindustry.world.blocks.types.BlockPart;
 import io.anuke.mindustry.world.blocks.types.Rock;
-import io.anuke.ucore.UCore;
 import io.anuke.ucore.core.Timers;
 import io.anuke.ucore.entities.Entities;
 
 import java.io.*;
-import java.nio.ByteBuffer;
 
 public class NetworkIO {
 

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

@@ -5,4 +5,6 @@ import java.nio.ByteBuffer;
 public interface Packet {
     void read(ByteBuffer buffer);
     void write(ByteBuffer buffer);
+
+    interface ImportantPacket{}
 }

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

@@ -2,6 +2,7 @@ package io.anuke.mindustry.net;
 
 import io.anuke.mindustry.entities.Player;
 import io.anuke.mindustry.entities.SyncEntity;
+import io.anuke.mindustry.net.Packet.ImportantPacket;
 import io.anuke.mindustry.resource.Item;
 
 import java.nio.ByteBuffer;
@@ -9,12 +10,12 @@ import java.nio.ByteBuffer;
 /**Class for storing all packets.*/
 public class Packets {
 
-    public static class Connect{
+    public static class Connect implements ImportantPacket{
         public int id;
         public String addressTCP;
     }
 
-    public static class Disconnect {
+    public static class Disconnect implements ImportantPacket{
         public int id;
         public String addressTCP;
     }
@@ -382,7 +383,7 @@ public class Packets {
         }
     }
 
-    public static class KickPacket implements Packet{
+    public static class KickPacket implements Packet, ImportantPacket{
         public KickReason reason;
 
         @Override

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

@@ -2,13 +2,14 @@ package io.anuke.mindustry.net;
 
 import com.badlogic.gdx.utils.reflect.ClassReflection;
 import com.badlogic.gdx.utils.reflect.ReflectionException;
+import io.anuke.mindustry.net.Packet.ImportantPacket;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
-public class Streamable{
+public class Streamable implements ImportantPacket{
     public transient ByteArrayInputStream stream;
 
     /**Marks the beginning of a stream.*/

kryonet/src/io/anuke/kryonet/KryoServer.java

@@ -23,7 +23,6 @@ import io.anuke.mindustry.net.Streamable;
 import io.anuke.mindustry.net.Streamable.StreamBegin;
 import io.anuke.mindustry.net.Streamable.StreamChunk;
 import io.anuke.ucore.UCore;
-import io.anuke.ucore.core.Timers;
 import org.java_websocket.WebSocket;
 import org.java_websocket.exceptions.WebsocketNotConnectedException;
 import org.java_websocket.handshake.ClientHandshake;
@@ -125,7 +124,6 @@ public class KryoServer implements ServerProvider {
         p.reason = reason;
 
         con.send(p, SendMode.tcp);
-        Timers.runTask(1f, con::close);
     }
 
     @Override