No more duplicate patterns in meteorites.

helpers/MeteoritePlacer.java

@@ -325,31 +325,52 @@ public class MeteoritePlacer
 			InventoryAdaptor ap = InventoryAdaptor.getAdaptor( te, ForgeDirection.UP );
 
 			int primary = Math.max( 1, (int) (Math.random() * 4) );
+
+			if ( primary > 3 ) // in case math breaks...
+				primary = 3;
+
 			for (int zz = 0; zz < primary; zz++)
 			{
 				int r = 0;
+				boolean duplicate = false;
+
+				do
+				{
+					duplicate = false;
 
 					if ( Math.random() > 0.7 )
 						r = WorldSettings.getInstance().getNextOrderedValue( "presses" );
 					else
 						r = (int) (Math.random() * 1000);
 
+					ItemStack toAdd = null;
+
 					switch (r % 4)
 					{
 					case 0:
-					ap.addItems( AEApi.instance().materials().materialCalcProcessorPress.stack( 1 ) );
+						toAdd = AEApi.instance().materials().materialCalcProcessorPress.stack( 1 );
 						break;
 					case 1:
-					ap.addItems( AEApi.instance().materials().materialEngProcessorPress.stack( 1 ) );
+						toAdd = AEApi.instance().materials().materialEngProcessorPress.stack( 1 );
 						break;
 					case 2:
-					ap.addItems( AEApi.instance().materials().materialLogicProcessorPress.stack( 1 ) );
+						toAdd = AEApi.instance().materials().materialLogicProcessorPress.stack( 1 );
 						break;
 					case 3:
-					ap.addItems( AEApi.instance().materials().materialSiliconPress.stack( 1 ) );
+						toAdd = AEApi.instance().materials().materialSiliconPress.stack( 1 );
 						break;
 					default:
 					}
+
+					if ( toAdd != null )
+					{
+						if ( ap.simulateRemove( 1, toAdd, null ) == null )
+							ap.addItems( toAdd );
+						else
+							duplicate = true;
+					}
+				}
+				while (duplicate);
 			}
 
 			int secondary = Math.max( 1, (int) (Math.random() * 3) );