Made the lighting thread safe

src/projectzombie/display/DisplayLighting.java

@@ -1,6 +1,7 @@
 package projectzombie.display;
 
 import java.nio.ByteBuffer;
+import java.util.concurrent.atomic.AtomicReference;
 
 import org.lwjgl.BufferUtils;
 import org.lwjgl.opengl.GL33;
@@ -36,18 +37,18 @@ public class DisplayLighting
 	private static boolean lighting_new = false;
 	public static int lightmap;
 	
-	private static Lighting lighting;
+	private static AtomicReference<Lighting> lighting = new AtomicReference<DisplayLighting.Lighting>();
 	
 	public static void setDirty() {
 		lighting_dirty = true;
 	}
 	
-	private synchronized static Lighting getLighting() {
+	private static Lighting getLighting() {
-		return lighting;
+		return lighting.get();
 	}
 	
-	private synchronized static void setLighting(Lighting lighting) {
+	private static void setLighting(Lighting lighting) {
-		DisplayLighting.lighting = lighting;
+		DisplayLighting.lighting.set(lighting);
 		lighting_new = true;
 	}
 	

src/projectzombie/worker/WorkerLighting.java

@@ -1,5 +1,7 @@
 package projectzombie.worker;
 
+import java.util.concurrent.atomic.AtomicReference;
+
 import projectzombie.display.DisplayLighting;
 import projectzombie.task.Task;
 
@@ -14,7 +16,7 @@ public class WorkerLighting extends Thread
 	}
 	
 	private boolean running;
-	private LightingTask task;
+	private AtomicReference<LightingTask> task = new AtomicReference<WorkerLighting.LightingTask>();
 	
 	public void processLighting(float[] lights, int width, int height, int x, int y)
 	{
@@ -25,7 +27,7 @@ public class WorkerLighting extends Thread
 		task.x = x;
 		task.y = y;
 		
-		this.task = task;
+		this.task.set(task);
 	}
 	
 	private float getLight(LightingTask task, int x, int y) {
@@ -78,7 +80,7 @@ public class WorkerLighting extends Thread
 		{
 			while(running)
 			{
-				LightingTask task = this.task;
+				LightingTask task = this.task.get();
 				
 				if(task != null)
 				{