Correct Torch/Ladder placing

classes/Data.class.php

@@ -26,6 +26,41 @@ the Free Software Foundation, either version 3 of the License, or
 */
 
 class Material{
+	static $transparent = array(
+		0 => true,
+		6 => true,
+		8 => true,
+		9 => true,
+		10 => true,
+		11 => true,
+		18 => true,
+		20 => true,
+		26 => true,
+		30 => true,
+		31 => true,
+		32 => true,
+		37 => true,
+		38 => true,
+		39 => true,
+		40 => true,
+		46 => true,
+		50 => true,
+		51 => true,
+		53 => true,
+		59 => true,
+		65 => true,
+		67 => true,
+		78 => true,
+		79 => true,
+		81 => true,
+		83 => true,
+		89 => true,
+		96 => true,
+		102 => true,
+		105 => true,
+		107 => true,
+		108 => true,		
+	);
 	static $replaceable = array(
 		0 => true,
 		8 => true,