From 2729777b943413323550d7891ea6df8861376598 Mon Sep 17 00:00:00 2001
From: paramat <mat.gregory@virginmedia.com>
Date: Thu, 22 Oct 2015 18:54:18 +0100
Subject: [PATCH] Default/functions: ABM for mossycobble replacing cobble next
 to water

---
 mods/default/functions.lua | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/mods/default/functions.lua b/mods/default/functions.lua
index 50f481f..7ba71fe 100644
--- a/mods/default/functions.lua
+++ b/mods/default/functions.lua
@@ -306,7 +306,7 @@ minetest.register_abm({
 
 
 --
--- Grass growing
+-- Grass growing on well-lit dirt
 --
 
 minetest.register_abm({
@@ -329,6 +329,11 @@ minetest.register_abm({
 	end
 })
 
+
+--
+-- Grass and dry grass removed in darkness
+--
+
 minetest.register_abm({
 	nodenames = {"default:dirt_with_grass", "default:dirt_with_dry_grass"},
 	interval = 2,
@@ -345,3 +350,18 @@ minetest.register_abm({
 	end
 })
 
+
+--
+-- Moss growth on cobble near water
+--
+
+minetest.register_abm({
+	nodenames = {"default:cobble"},
+	neighbors = {"group:water"},
+	interval = 17,
+	chance = 200,
+	catch_up = false,
+	action = function(pos, node)
+		minetest.set_node(pos, {name = "default:mossycobble"})
+	end
+})