Bravo skylight spreading strength (MasterofJOKers)

bravo_light_strength.diff

diff --git a/bravo/chunk.py b/bravo/chunk.py
index 1b53573..6d6d519 100644
--- a/bravo/chunk.py
+++ b/bravo/chunk.py
@@ -198,7 +198,8 @@ class Chunk(object):
 
         while glow:
             for coords in spread:
-                if coords[2] > max_height:
+                if lightmap[coords] <= glow:
+                    visited.add(coords)
                     continue
 
                 for dx, dz, dy in (
diff --git a/bravo/tests/test_chunk.py b/bravo/tests/test_chunk.py
index 06623fe..acc0946 100644
--- a/bravo/tests/test_chunk.py
+++ b/bravo/tests/test_chunk.py
@@ -152,3 +152,21 @@ class TestLightmaps(unittest.TestCase):
             glow -= 1
 
         assert_array_equal(self.c.skylight[:, :, 1], reference)
+
+    def test_skylight_glow_spreading_strength(self):
+        # build some sort of arch which is lit by light that
+        # has fallen through some leaves
+        
+        # Fill it as if we were the boring generator.
+        self.c.blocks[:, :, 0].fill(1)
+        # set up a wall height 2, width 2
+        self.c.blocks[:, 0:2, 1:3].fill(1)
+        # cut out one block
+        self.c.blocks[1, 1, 1] = 0
+        # a floor out of leaves
+        # so the light under it will be 11
+        self.c.blocks[:, 2:, 2:6].fill(18)
+        self.c.regenerate()
+
+        print self.c.skylight[:, :, 1]
+        self.assertEqual(self.c.skylight[1, 1, 1], 10)