Merge remote-tracking branch 'upstream/master'

saplings.lua

@@ -45,7 +45,28 @@ local sand_surfaces = {
 	-- too cold for a palm, too... well... sandy for anything else.
 }
 
-for i in ipairs(moretrees.treelist) do
+function moretrees.can_grow(pos, treename)
+	local surfaces
+
+	if treename == "spruce"
+	  or treename == "fir"
+	  or treename == "cedar"
+	  or treename == "pine" then
+		surfaces = conifer_surfaces
+	elseif string.find(treename, "palm") then
+		surfaces = sand_surfaces
+	else
+		surfaces = dirt_surfaces
+	end
+
+	if surfaces[minetest.get_node(vector.new(pos.x, pos.y-1, pos.z)).name] then
+		return true
+	else
+		return false
+	end
+end
+
+--[[ for i in ipairs(moretrees.treelist) do
 	local treename = moretrees.treelist[i][1]
 	local tree_model = treename.."_model"
 	local tree_biome = treename.."_biome"
@@ -87,4 +108,4 @@ for i in ipairs(moretrees.treelist) do
 		grow_nodes = surfaces,
 		grow_function = grow_function,
 	})
-end
+end ]]