new chasm-sided lava. Some WML transition glitches probably remaining.

data/terrain-graphics.cfg

@@ -360,6 +360,9 @@
 
 {TERRAIN_BASE                 X chasm}
 
+{TERRAIN_BASE_PROB            l lava 40}
+{TERRAIN_BASE                 l lava2}
+
 #g 2% 2% 3% 3% 9% 9% 9% 9% 9% 9% 9% 27%
 {TERRAIN_BASE_PROB            g grassland-rocks1    2}
 {TERRAIN_BASE_PROB            g grassland-rocks2    2}
@@ -450,8 +453,8 @@
 {TERRAIN_BASE                 k ford}
 
 #33% 67%
-{TERRAIN_BASE_PROB            l lava2  33}
-{TERRAIN_BASE                 l lava}
+#{TERRAIN_BASE_PROB            l lava2  33}
+#{TERRAIN_BASE                 l lava}
 
 #This one is to fill the "gaps" at the map edges. There are no
 #non-multihex mountains so hills fit better
@@ -709,6 +712,11 @@
 #{TERRAIN_ADJACENT_CORNER   -50        K      O      !OK     <name>}
 #{TERRAIN_ADJACENT_CORNER   -50        K      !OK    O       <name>}
 
+# Lava
+{DISABLE_TRANSITIONS l}
+{TERRAIN_ADJACENT_CORNER       l      !l   !l    52,76 lava-convex}
+{TERRAIN_ADJACENT_CORNER       !l   l      l       56,68 lava-concave}
+
 # Chasm
 {DISABLE_TRANSITIONS X}
 {TERRAIN_ADJACENT_CORNER       X      !X   !X    52,76 chasm-convex}