Stop upward sand creep in deserts.

This is an extreme measure to stop upward sand creep in non-deserts.
If there isn't some sand already at the same elevation as the eroding
dirt, don't erode it to sand. This prevents beaches slowly crawling up
entire hills.

This is needed since there is no biome information yet in Minetest.

1 files changed, 1 insertions, 1 deletions

diff --git a/init.lua b/init.lua
index d1456cb..c134375 100644
--- a/init.lua
+++ b/init.lua
@@ -412,7 +412,7 @@ local function sed()
 	if node.name == "default:dirt" and underliquid < 1 then
 		-- since we don't have biome information, we'll assume that if there is no sand or
 		-- desert sand anywhere nearby, we shouldn't degrade this block further
-		local fpos = minetest.find_node_near(pos, 2, {"default:sand", "default:desert_sand"})
+		local fpos = minetest.find_node_near({x = pos.x, y = pos.y + 1, z = pos.z}, 1, {"default:sand", "default:desert_sand"})
 		if not fpos then
 			return
 		end