Fixed crash caused by lack of multithreading

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

@@ -176,7 +176,7 @@ public class Control extends Module{
 			Timers.runTask(30f, () -> state.set(State.menu));
 		});
 
-		Events.on(WorldLoadEvent.class, () -> Gdx.app.postRunnable(() -> Events.fire(WorldLoadGraphicsEvent.class)));
+		Events.on(WorldLoadEvent.class, () -> threads.runGraphics(() -> Events.fire(WorldLoadGraphicsEvent.class)));
 	}
 
 	public void addPlayer(int index){
@@ -261,12 +261,14 @@ public class Control extends Module{
 		ui.loadfrag.show();
 		saves.resetSave();
 
-		threads.run(() -> {
-			logic.reset();
-			world.loadMap(map);
-			logic.play();
+		Timers.run(5f, () -> {
+			threads.run(() -> {
+				logic.reset();
+				world.loadMap(map);
+				logic.play();
 
-			Gdx.app.postRunnable(ui.loadfrag::hide);
+				Gdx.app.postRunnable(ui.loadfrag::hide);
+			});
 		});
 	}
 

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

@@ -43,6 +43,14 @@ public class ThreadHandler {
         }
     }
 
+    public void runGraphics(Runnable r){
+        if(enabled) {
+            Gdx.app.postRunnable(r);
+        }else{
+            r.run();
+        }
+    }
+
     public void runDelay(Runnable r){
         if(enabled) {
             synchronized (toRun) {

core/src/io/anuke/mindustry/ui/ItemImage.java

@@ -14,8 +14,6 @@ public class ItemImage extends Stack {
     public ItemImage(TextureRegion region, Supplier<String> text, Color color) {
         Table t = new Table().left().bottom();
 
-        t.label(text).get().setFontScale(0.5f);
-
         image = new Image(region);
         image.setColor(color);
 

core/src/io/anuke/mindustry/world/Build.java

@@ -91,7 +91,7 @@ public class Build {
         rect.setSize(type.size * tilesize, type.size * tilesize);
         rect.setCenter(type.offset() + x * tilesize, type.offset() + y * tilesize);
 
-        if (type.solid || type.solidifes)
+        if (type.solid || type.solidifes) {
             synchronized (Entities.entityLock) {
                 try {
 
@@ -112,6 +112,7 @@ public class Build {
                     return false;
                 }
             }
+        }
 
         Tile tile = world.tile(x, y);