Fix placed rail conversion, start automatic inventory rail conversion

mods/ENTITIES/mcl_minecarts/carts.lua

@@ -3,7 +3,7 @@ local modpath = minetest.get_modpath(modname)
 local mod = mcl_minecarts
 local S = minetest.get_translator(modname)
 
-local mcl_log = mcl_util.make_mcl_logger("mcl_logging_minecarts", "Minecarts")
+local mcl_log,DEBUG = mcl_util.make_mcl_logger("mcl_logging_minecarts", "Minecarts")
 
 -- Imports
 local CART_BLOCK_SIZE = mod.CART_BLOCK_SIZE
@@ -612,6 +612,7 @@ minetest.register_globalstep(function(dtime)
 end)
 
 minetest.register_on_joinplayer(function(player)
+	-- Try cart reattachment
 	local player_name = player:get_player_name()
 	local player_meta = mcl_playerinfo.get_mod_meta(player_name, modname)
 	local cart_uuid = player_meta.attached_to

mods/ENTITIES/mcl_minecarts/rails.lua

@@ -652,7 +652,10 @@ local CURVY_RAILS_MAP = {
 	["mcl_minecarts:rail"] = "mcl_minecarts:rail_v2",
 }
 for old,new in pairs(CURVY_RAILS_MAP) do
-	minetest.register_alias(old, new)
+	minetest.register_node(old, {
+		inventory_image = minetest.registered_nodes[new].inventory_image,
+		groups = { rail = 1 }
+	})
 end
 minetest.register_lbm({
 	name = "mcl_minecarts:update_legacy_curvy_rails",
@@ -674,8 +677,14 @@ local STRAIGHT_RAILS_MAP ={
 	["mcl_minecarts:detector_rail_on"] = "mcl_minecarts:detector_rail_v2_on",
 }
 for old,new in pairs(STRAIGHT_RAILS_MAP) do
-	minetest.register_alias(old, new)
+	minetest.register_node(old, {
+		inventory_image = minetest.registered_nodes[new].inventory_image,
+		groups = { rail = 1 }
+	})
 end
+local TRANSLATE_RAILS_MAP = table.copy(STRAIGHT_RAILS_MAP)
+table_merge(TRANSLATE_RAILS_MAP, CURVY_RAILS_MAP)
+
 minetest.register_lbm({
 	name = "mcl_minecarts:update_legacy_straight_rails",
 	nodenames = mcl_util.table_keys(STRAIGHT_RAILS_MAP),
@@ -699,3 +708,18 @@ minetest.register_lbm({
 		end
 	end
 })
+
+-- Convert old rail in the player's inventory to new rail
+minetest.register_on_joinplayer(function(player)
+	local inv = player:get_inventory()
+	local size = inv:get_size("main")
+	for i=1,size do
+		local stack = inv:get_stack("main", i)
+
+		local new_name = TRANSLATE_RAILS_MAP[stack:get_name()]
+		if new_name then
+			stack:set_name(new_name)
+			inv:set_stack("main", i, stack)
+		end
+	end
+end)

mods/HUD/mcl_inventory/creative.lua

@@ -386,7 +386,7 @@ local tab_icon = {
 	blocks = "mcl_core:brick_block",
 	deco = "mcl_flowers:peony",
 	redstone = "mesecons:redstone",
-	rail = "mcl_minecarts:golden_rail",
+	rail = "mcl_minecarts:golden_rail_v2",
 	misc = "mcl_buckets:bucket_lava",
 	nix = "mcl_compass:compass",
 	food = "mcl_core:apple",