tidied & optimized code

1 files changed, 15 insertions, 16 deletions

diff --git a/papyrus.lua b/papyrus.lua
index e17dee2..5bee2e6 100644
--- a/papyrus.lua
+++ b/papyrus.lua
@@ -1,8 +1,7 @@
--- Override default Papyrus to make it walkable
+-- override default papyrus to make it walkable
 minetest.override_item("default:papyrus", {walkable=true, sunlight_propagates=true})
 
-
--- Have Papyrus grow up to 4 high and Bamboo grow up to 5 in height (shared abm)
+-- have papyrus grow up to 4 high and bamboo grow up to 5 in height (shared abm)
 minetest.register_abm({
 	nodenames = {"default:papyrus", "ethereal:bamboo"},
 	neighbors = {"group:soil"},
@@ -10,32 +9,32 @@ minetest.register_abm({
 	chance = 20,
 	action = function(pos, node)
 
-		local type = minetest.get_node(pos).name
 		local high = 4
 
-		pos.y = pos.y-1
-		local name = minetest.get_node(pos).name
+		pos.y = pos.y - 1
+		local nod = minetest.get_node_or_nil(pos)
 
-		if minetest.get_item_group(name, "soil") < 1 or minetest.find_node_near(pos, 3, {"group:water"}) == nil then
+		if not nod
+		or minetest.get_item_group(nod.name, "soil") < 1
+		or minetest.find_node_near(pos, 3, {"group:water"}) == nil then
 			return
 		end
 
-		if type == "ethereal:bamboo" then
+		if node.name == "ethereal:bamboo" then
 			high = 5
 		end
 
-		pos.y = pos.y+1
+		pos.y = pos.y + 1
 		local height = 0
 
-		while minetest.get_node(pos).name == type and height < high do
-			height = height+1
-			pos.y = pos.y+1
+		while minetest.get_node(pos).name == node.name and height < high do
+			height = height + 1
+			pos.y = pos.y + 1
 		end
 
-		if height < high then
-			if minetest.get_node(pos).name == "air" then
-				minetest.set_node(pos, {name=type})
-			end
+		nod = minetest.get_node_or_nil(pos)
+		if nod and nod.name == "air" and height < high then
+			minetest.set_node(pos, {name=node.name})
 		end
 
 	end,