From 913a92a01007d7c894776e313f221db7cd56fdeb Mon Sep 17 00:00:00 2001
From: Mike Primm <mike@primmhome.com>
Date: Tue, 19 Jul 2011 17:45:05 -0500
Subject: [PATCH] Handle snow lighting special case

---
 .../org/dynmap/hdmap/IsoHDPerspective.java    | 21 +++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/main/java/org/dynmap/hdmap/IsoHDPerspective.java b/src/main/java/org/dynmap/hdmap/IsoHDPerspective.java
index 4bcba45c..75da33ee 100644
--- a/src/main/java/org/dynmap/hdmap/IsoHDPerspective.java
+++ b/src/main/java/org/dynmap/hdmap/IsoHDPerspective.java
@@ -102,21 +102,28 @@ public class IsoHDPerspective implements HDPerspective {
          */
         public final int getSkyLightLevel() {
             int ll;
-            BlockStep ls = mapiter.unstepPosition();
+            BlockStep ls;
             /* Some blocks are light blocking, but not fully blocking - this sucks */
             switch(mapiter.getBlockTypeID()) {
                 case 53:    /* Wood stairs */
                 case 44:    /* Slabs */
                 case 67:    /* Cobblestone stairs */
+                    ls = mapiter.unstepPosition();                	
                     mapiter.stepPosition(BlockStep.Y_PLUS); /* Look above */
                     ll = mapiter.getBlockSkyLight();
                     mapiter.stepPosition(BlockStep.Y_MINUS);
+                    mapiter.stepPosition(ls);
                     break;
+                case 78:	/* Snow */
+                	ll = mapiter.getBlockSkyLight();
+                	break;
                 default:
+                	ls = mapiter.unstepPosition();
                     ll = mapiter.getBlockSkyLight();
+                    mapiter.stepPosition(ls);
                     break;
             }
-            mapiter.stepPosition(ls);
+            
             return ll;
         }
         /**
@@ -124,21 +131,27 @@ public class IsoHDPerspective implements HDPerspective {
          */
         public final int getEmittedLightLevel() {
             int ll;
-            BlockStep ls = mapiter.unstepPosition();
+            BlockStep ls;            
             /* Some blocks are light blocking, but not fully blocking - this sucks */
             switch(mapiter.getBlockTypeID()) {
                 case 53:    /* Wood stairs */
                 case 44:    /* Slabs */
                 case 67:    /* Cobblestone stairs */
+                    ls = mapiter.unstepPosition();
                     mapiter.stepPosition(BlockStep.Y_PLUS); /* Look above */
                     ll = mapiter.getBlockEmittedLight();
                     mapiter.stepPosition(BlockStep.Y_MINUS);
+                    mapiter.stepPosition(ls);                    
                     break;
+                case 78:	/* Snow */
+                	ll = mapiter.getBlockEmittedLight();
+                	break;
                 default:
+                	ls = mapiter.unstepPosition();
                     ll = mapiter.getBlockEmittedLight();
+                    mapiter.stepPosition(ls);
                     break;
             }
-            mapiter.stepPosition(ls);
             return ll;
         }
         /**