chest + shulkerbox formspec

mods/HUD/mcl_formspec/FORMSPEC_GUIDE.md

@@ -11,10 +11,12 @@ Just use this code to apply it to your formspec:
 "style_type[label;font_size=25]",
 ```
 
-The typical width of an inventory formspec is `0.375 + 9 + (9 * 0.25) + 0.375 = 12`
+The typical width of an inventory formspec is `0.375 + 9 + ((9-1) * 0.25) + 0.375 = 11.75`
 
 Margins is 0.375
 Space between 1st inventory line and the rest of inventory is 0.4
 
 Labels should have 0.375 space above if there is no other stuff above and 0.45 between content
 + 0.375 under
+
+According to minetest modding book, table.concat is faster than string concatenation, so this method should be prefered (the code is also more clear)

mods/ITEMS/mcl_chests/init.lua

@@ -1,6 +1,13 @@
 local S = minetest.get_translator(minetest.get_current_modname())
 local F = minetest.formspec_escape
 local C = minetest.colorize
+
+local string = string
+local table = table
+local math = math
+
+local sf = string.format
+
 local mod_doc = minetest.get_modpath("doc")
 
 -- Christmas chest setup
@@ -52,7 +59,7 @@ local entity_animations = {
 		speed = 25,
 		open = {x = 0, y = 7},
 		close = {x = 13, y = 20},
-	}
+	},
 }
 
 minetest.register_entity("mcl_chests:chest", {
@@ -492,18 +499,29 @@ local function register_chest(basename, desc, longdesc, usagehelp, tt_help, tile
 			end
 
 			minetest.show_formspec(clicker:get_player_name(),
-			"mcl_chests:"..canonical_basename.."_"..pos.x.."_"..pos.y.."_"..pos.z,
+				sf("mcl_chests:%s_%s_%s_%s", canonical_basename, pos.x, pos.y, pos.z),
-			"size[9,8.75]"..
+				table.concat({
-			"label[0,0;"..F(minetest.colorize("#313131", name)).."]"..
+					"formspec_version[4]",
-			"list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0,0.5;9,3;]"..
+					"size[11.75,10.375]",
-			mcl_formspec.get_itemslot_bg(0,0.5,9,3)..
+					"style_type[label;font_size=25]",
-			"label[0,4.0;"..F(minetest.colorize("#313131", S("Inventory"))).."]"..
+
-			"list[current_player;main;0,4.5;9,3;9]"..
+					"label[0.375,0.375;"..F(C(mcl_formspec.label_color, name)).."]",
-			mcl_formspec.get_itemslot_bg(0,4.5,9,3)..
+
-			"list[current_player;main;0,7.74;9,1;]"..
+					mcl_formspec.get_itemslot_bg_v4(0.375, 0.75, 9, 3),
-			mcl_formspec.get_itemslot_bg(0,7.74,9,1)..
+					sf("list[nodemeta:%s,%s,%s;main;0.375,0.75;9,3;]", pos.x, pos.y, pos.z),
-			"listring[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main]"..
+
-			"listring[current_player;main]")
+					"label[0.375,4.7;"..F(C(mcl_formspec.label_color, S("Inventory"))).."]",
+
+					mcl_formspec.get_itemslot_bg_v4(0.375, 5.1, 9, 3),
+					"list[current_player;main;0.375,5.1;9,3;9]",
+
+					mcl_formspec.get_itemslot_bg_v4(0.375, 9, 9, 1),
+					"list[current_player;main;0.375,9;9,1;]",
+
+					sf("listring[nodemeta:%s,%s,%s;main]", pos.x, pos.y, pos.z),
+					"listring[current_player;main]",
+				})
+			)
 
 			if on_rightclick_addendum then
 				on_rightclick_addendum(pos, node, clicker)
@@ -856,10 +874,12 @@ register_chest("trapped_chest",
 	S("27 inventory slots") .. "\n" .. S("Can be combined to a large chest") .. "\n" .. S("Emits a redstone signal when opened"),
 	traptiles,
 	nil,
-	{receptor = {
+	{
+		receptor = {
 			state = mesecon.state.off,
 			rules = trapped_chest_mesecons_rules,
-	}},
+		},
+	},
 	function(pos, node, clicker)
 		minetest.swap_node(pos, {name="mcl_chests:trapped_chest_on_small", param2 = node.param2})
 		find_or_create_entity(pos, "mcl_chests:trapped_chest_on_small", {"mcl_chests_trapped.png"}, node.param2, false, "default_chest", "mcl_chests_chest", "chest"):reinitialize("mcl_chests:trapped_chest_on_small")
@@ -891,10 +911,12 @@ register_chest("trapped_chest",
 
 register_chest("trapped_chest_on",
 	nil, nil, nil, nil, traptiles, true,
-	{receptor = {
+	{
+		receptor = {
 			state = mesecon.state.on,
 			rules = trapped_chest_mesecons_rules,
-	}},
+		},
+	},
 	nil, nil, nil,
 	"trapped_chest",
 	"trapped_chest"
@@ -951,19 +973,19 @@ minetest.register_craft({
 		{"group:wood", "group:wood", "group:wood"},
 		{"group:wood", "", "group:wood"},
 		{"group:wood", "group:wood", "group:wood"},
-	}
+	},
 })
 
 minetest.register_craft({
 	type = "fuel",
 	recipe = "mcl_chests:chest",
-	burntime = 15
+	burntime = 15,
 })
 
 minetest.register_craft({
 	type = "fuel",
 	recipe = "mcl_chests:trapped_chest",
-	burntime = 15
+	burntime = 15,
 })
 
 minetest.register_node("mcl_chests:ender_chest", {
@@ -989,7 +1011,7 @@ minetest.register_node("mcl_chests:ender_chest", {
 
 local formspec_ender_chest = table.concat({
 	"formspec_version[4]",
-	"size[12,10.375]",
+	"size[11.75,10.375]",
 	"style_type[label;font_size=25]",
 
 	"label[0.375,0.375;"..F(C(mcl_formspec.label_color, S("Ender Chest"))).."]",
@@ -1082,7 +1104,7 @@ minetest.register_craft({
 		{"mcl_core:obsidian", "mcl_core:obsidian", "mcl_core:obsidian"},
 		{"mcl_core:obsidian", "mcl_end:ender_eye", "mcl_core:obsidian"},
 		{"mcl_core:obsidian", "mcl_core:obsidian", "mcl_core:obsidian"},
-	}
+	},
 })
 
 -- Shulker boxes
@@ -1125,21 +1147,33 @@ local shulker_mob_textures = {
 }
 local canonical_shulker_color = "violet"
 
+--WARNING: after formspec v4 update, old shulker boxes will need to be placed again to get the new formspec
 local function formspec_shulker_box(name)
-	if name == "" then
+	if not name or name == "" then
 		name = S("Shulker Box")
 	end
-	return "size[9,8.75]"..
+
-	"label[0,0;"..F(minetest.colorize("#313131", name)).."]"..
+	return table.concat({
-	"list[context;main;0,0.5;9,3;]"..
+		"formspec_version[4]",
-	mcl_formspec.get_itemslot_bg(0,0.5,9,3)..
+		"size[11.75,10.375]",
-	"label[0,4.0;"..F(minetest.colorize("#313131", S("Inventory"))).."]"..
+		"style_type[label;font_size=25]",
-	"list[current_player;main;0,4.5;9,3;9]"..
+
-	mcl_formspec.get_itemslot_bg(0,4.5,9,3)..
+		"label[0.375,0.375;"..F(C(mcl_formspec.label_color, name)).."]",
-	"list[current_player;main;0,7.74;9,1;]"..
+
-	mcl_formspec.get_itemslot_bg(0,7.74,9,1)..
+		mcl_formspec.get_itemslot_bg_v4(0.375, 0.75, 9, 3),
-	"listring[context;main]"..
+		"list[context;main;0.375,0.75;9,3;]",
-	"listring[current_player;main]"
+
+		"label[0.375,4.7;"..F(C(mcl_formspec.label_color, S("Inventory"))).."]",
+
+		mcl_formspec.get_itemslot_bg_v4(0.375, 5.1, 9, 3),
+		"list[current_player;main;0.375,5.1;9,3;9]",
+
+		mcl_formspec.get_itemslot_bg_v4(0.375, 9, 9, 1),
+		"list[current_player;main;0.375,9;9,1;]",
+
+		"listring[context;main]",
+		"listring[current_player;main]",
+	})
 end
 
 local function set_shulkerbox_meta(nmeta, imeta)
@@ -1336,7 +1370,7 @@ for color, desc in pairs(boxtypes) do
 	minetest.register_craft({
 		type = "shapeless",
 		output = "mcl_chests:"..color.."_shulker_box",
-		recipe = { "group:shulker_box", "mcl_dye:"..color }
+		recipe = {"group:shulker_box", "mcl_dye:"..color},
 	})
 end
 
@@ -1346,7 +1380,7 @@ minetest.register_craft({
 		{"mcl_mobitems:shulker_shell"},
 		{"mcl_chests:chest"},
 		{"mcl_mobitems:shulker_shell"},
-	}
+	},
 })
 
 -- Save metadata of shulker box when used in crafting
@@ -1420,13 +1454,13 @@ minetest.register_lbm({
 })
 
 minetest.register_lbm({
-	label = "Update shulker box formspecs (0.60.0)",
+	label = "Update shulker box formspecs (0.72.0)",
-	name = "mcl_chests:update_shulker_box_formspecs_0_60_0",
+	name = "mcl_chests:update_shulker_box_formspecs_0_72_0",
 	nodenames = { "group:shulker_box" },
 	run_at_every_load = false,
 	action = function(pos, node)
 		local meta = minetest.get_meta(pos)
-		meta:set_string("formspec", formspec_shulker_box)
+		meta:set_string("formspec", formspec_shulker_box(meta:get_string("name")))
 	end,
 })