Improve code relating to vines

This commit makes the LBM and `register_on_generated` for foliage now use the better calculation for the vines.

mods/CORE/mcl_util/init.lua

@@ -1033,3 +1033,13 @@ function mcl_util.get_palette_indexes_from_pos(pos)
 		return palette_indexes
 	end
 end
+
+function mcl_util.get_colorwallmounted_rotation(pos)
+	local colorwallmounted_node = minetest.get_node(pos)
+	for i = 0, 32, 1 do
+		local colorwallmounted_rotation = colorwallmounted_node.param2 - (i * 8)
+		if colorwallmounted_rotation < 6 then
+			return colorwallmounted_rotation
+		end
+	end
+end

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -452,9 +452,9 @@ minetest.register_lbm({
 			minetest.set_node(pos, node)
 		elseif node.name == "mcl_core:vine" then
 			local biome_param2 = foliage_palette_index
-			local rotation_param2 = node.param2
+			local rotation_param2 = mcl_util.get_colorwallmounted_rotation(pos)
 			local final_param2 = (biome_param2 * 8) + rotation_param2
-			if node.param2 ~= final_param2 and rotation_param2 < 6 then
+			if node.param2 ~= final_param2 then
 				node.param2 = final_param2
 				minetest.set_node(pos, node)
 			end
@@ -473,9 +473,9 @@ minetest.register_on_generated(function(minp, maxp, blockseed) -- Set correct pa
 			minetest.set_node(fpos, fnode)
 		elseif fnode.name == "mcl_core:vine" then
 			local biome_param2 = foliage_palette_index
-			local rotation_param2 = fnode.param2
+			local rotation_param2 = mcl_util.get_colorwallmounted_rotation(fpos)
 			local final_param2 = (biome_param2 * 8) + rotation_param2
-			if fnode.param2 ~= final_param2 and rotation_param2 < 6 then
+			if fnode.param2 ~= final_param2 then
 				fnode.param2 = final_param2
 				minetest.set_node(fpos, fnode)
 			end