Fixed some more synchronization bugs

build.gradle

@@ -24,7 +24,7 @@ allprojects {
         appName = 'Mindustry'
         gdxVersion = '1.9.8'
         aiVersion = '1.8.1'
-        uCoreVersion = 'd66ebb6'
+        uCoreVersion = 'a95630d'
 
         getVersionString = {
             String buildVersion = getBuildVersion()

core/assets/version.properties

@@ -1,5 +1,5 @@
 #Autogenerated file. Do not modify.
-#Mon Feb 19 14:44:36 EST 2018
+#Mon Feb 19 14:45:40 EST 2018
 version=beta
 androidBuildCode=245
 name=Mindustry

core/src/io/anuke/mindustry/input/InputHandler.java

@@ -98,12 +98,14 @@ public abstract class InputHandler extends InputAdapter{
 		Vector2 offset = type.getPlaceOffset();
 		rect.setCenter(offset.x + x * tilesize, offset.y + y * tilesize);
 
-		for(SolidEntity e : Entities.getNearby(enemyGroup, x * tilesize, y * tilesize, tilesize * 2f)){
-			if(e == null) continue; //not sure why this happens?
-			Rectangle rect = e.hitbox.getRect(e.x, e.y);
+		synchronized (Entities.entityLock) {
+			for (SolidEntity e : Entities.getNearby(enemyGroup, x * tilesize, y * tilesize, tilesize * 2f)) {
+				if (e == null) continue; //not sure why this happens?
+				Rectangle rect = e.hitbox.getRect(e.x, e.y);
 
-			if(this.rect.overlaps(rect)){
-				return false;
+				if (this.rect.overlaps(rect)) {
+					return false;
+				}
 			}
 		}
 

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

@@ -208,7 +208,7 @@ public class Tile{
 	
 	/**Returns the list of all tiles linked to this multiblock, or an empty array if it's not a multiblock.
 	 * This array contains all linked tiles, including this tile itself.*/
-	public Array<Tile> getLinkedTiles(){
+	public synchronized Array<Tile> getLinkedTiles(){
 		Block block = block();
 		tmpArray.clear();
 		if(!(block.width == 1 && block.height == 1)){