3d_armor/wieldview/init.lua

local time = 0
local update_time = tonumber(minetest.setting_get("wieldview_update_time"))
if not update_time then
	update_time = 2
	minetest.setting_set("wieldview_update_time", tostring(update_time))
end

wieldview = {
	wielded_item = {},
}

wieldview.get_item_texture = function(self, item)
	if item ~= "" then
		if minetest.registered_items[item] then
			if minetest.registered_items[item].inventory_image ~= "" then
				return minetest.registered_items[item].inventory_image
			end
			if minetest.registered_items[item].tiles then
				return minetest.registered_items[item].tiles[1]
			end
		end
	end
	return uniskins.default_texture
end

wieldview.update_wielded_item = function(self, player)
	if not player then
		return
	end
	local name = player:get_player_name()
	local stack = player:get_wielded_item()
	local item = stack:get_name()
	if not item then
		return
	end
	if self.wielded_item[name] then
		if self.wielded_item[name] == item then
			return
		end
		uniskins.wielditem[name] = self:get_item_texture(item)
		uniskins:update_player_visuals(player)
	end
	self.wielded_item[name] = item
end

minetest.register_on_joinplayer(function(player)
	local name = player:get_player_name()
	wieldview.wielded_item[name] = ""
	minetest.after(0, function(player)
		wieldview:update_wielded_item(player)
	end, player)
end)

minetest.register_globalstep(function(dtime)
	time = time + dtime
	if time > update_time then
		for _,player in ipairs(minetest.get_connected_players()) do
			wieldview:update_wielded_item(player)
		end
		time = 0
	end
end)