hotbar_16/init.lua

98 lines
3.0 KiB
Lua

-- Minetest Mod: hotbar
-- Version: 0.1.1
-- Licence(s): see the attached license.txt file
-- Author: aristotle, a builder on the Red Cat Creative Server
--
-- This mod allows the player to set his/her own hotbar slots number
-- by adding a new command.
--
-- hotbar [size]
--
-- By itself, hotbar types the hotbar slots number in the chat;
-- when it is followed by a number in the correct range that is now [1,16],
-- the command accordingly sets the new slots number.
--
-- Features:
-- - It permanently stores the user's preference by setting and retrieving
-- the "hotbar_slots" key in the configuration file.
--
-- Changelog:
-- 0.1.1
-- - The code that did not properly show the error message when the
-- received size was out of bounds has been corrected
-- - The accepted range has been extended from [4,16] to [1,16].
-- - Some code optimization to avoid strings repetitions
-- 0.1.0
-- - The hotbar is now correctly shown even when there are no items in it.
--
-- FYI
-- The potential range of the hotbar slots number should be [1,23]: the next
-- update will cover it too. :D
--
-- For now this is all folks: happy builds and explorations! :)
-- aristotle
local hb = {}
hb.min = 1
hb.max = 16
hb.default = 16
hb.setting ="hotbar_slots"
hb.current = minetest.setting_get(hb.setting) or hb.default -- The first time
hb.image = {}
hb.image.selected = "hotbar_slot_selected.png"
hb.image.bg = {}
for i = 1, hb.max do
table.insert(hb.image.bg, string.format("hotbar_slots_bg_%i.png", i))
end
function hb.resize(size)
local new_size = tonumber(size)
return hb.image.bg[new_size]
end
function hb.set(name, slots)
local mask = {err = "[_] Wrong slots number specified: the %s accepted value is %i.",
set = "[_] Hotbar slots number set to %i."}
local player = minetest.get_player_by_name(name)
if slots < hb.min then
minetest.chat_send_player(name, mask.err:format("minimum", hb.min))
return
end
if slots > hb.max then
minetest.chat_send_player(name, mask.err:format("maximum", hb.max))
return
end
player:hud_set_hotbar_itemcount(slots)
player:hud_set_hotbar_selected_image(hb.image.selected)
player:hud_set_hotbar_image(hb.resize(slots))
minetest.setting_set(hb.setting, slots) -- automatically converted into a string
hb.current = slots
minetest.chat_send_player(name, mask.set:format(slots))
end
function hb.command(name, slots)
local new_slots = tonumber(slots)
if not new_slots then
minetest.chat_send_player(name, "[_] Hotbar slots: " .. hb.current)
return
end
hb.set(name, new_slots)
end
minetest.register_on_joinplayer(function(player)
player:hud_set_hotbar_itemcount(hb.current)
minetest.after(0.5,function()
player:hud_set_hotbar_selected_image(hb.image.selected)
player:hud_set_hotbar_image(hb.resize(hb.current))
end)
end)
minetest.register_chatcommand("hotbar", {
params = "[size]",
description = string.format("If size is passed then it sets your hotbar slots number in the range [%i,%i], else it displays the current slots number.", hb.min, hb.max),
func = hb.command,
})