Added Light Detector

tile/misc/TileLightDetector.java

@@ -0,0 +1,60 @@
+package appeng.tile.misc;
+
+import appeng.tile.AEBaseTile;
+import appeng.tile.events.AETileEventHandler;
+import appeng.tile.events.TileEventType;
+import appeng.util.Platform;
+
+public class TileLightDetector extends AEBaseTile
+{
+
+	int lastCheck = 30;
+	int lastLight = 0;
+
+	public boolean isReady()
+	{
+		return lastLight > 0;
+	}
+
+	class LightDetectorHandler extends AETileEventHandler
+	{
+
+		public LightDetectorHandler() {
+			super( TileEventType.TICK );
+		}
+
+		@Override
+		public void Tick()
+		{
+			lastCheck++;
+			if ( lastCheck > 30 )
+			{
+				lastCheck = 0;
+				updateLight();
+			}
+		}
+
+	};
+
+	public TileLightDetector() {
+		addNewHandler( new LightDetectorHandler() );
+	}
+
+	public void updateLight()
+	{
+		int val = worldObj.getBlockLightValue( xCoord, yCoord, zCoord );
+
+		if ( lastLight != val )
+		{
+			lastLight = val;
+			Platform.notifyBlocksOfNeighbors( worldObj, xCoord, yCoord, zCoord );
+		}
+	}
+
+	@Override
+	public boolean canBeRotated()
+	{
+		return false;
+	}
+
+}