minetest-fs_themes/init.lua

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-- Copyright © 2024 Jaidyn Ann <jadedctrl@posteo.at>
--
-- This program is free software: you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public License
-- as published by the Free Software Foundation, either version 3 of
-- the License, or (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
fs_themes = {}
fs_themes.themes = {}
local storage = minetest.get_mod_storage()
local modpath = minetest.get_modpath(minetest.get_current_modname())
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local S = minetest.get_translator(minetest.get_current_modname());
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-- Set a players theme by a registered themes name.
-- If dont_save is provided, the players default theme wont change.
function fs_themes.set_theme(player, theme_name, dont_save)
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if not fs_themes.themes[theme_name] then
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minetest.log("warning", string.format(S("Theme “%s” was not found."), theme_name))
return false
elseif not dont_save then
storage:set_string(player:get_player_name(), theme_name)
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end
player:set_formspec_prepend(fs_themes.themes[theme_name])
return true
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end
-- Register a theme, given a name and a formspec string.
function fs_themes.register_theme(name, formspec_str)
fs_themes.themes[name] = formspec_str
return true
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end
minetest.register_chatcommand(
"themes",
{
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description = S("Lists available GUI (Formspecs) themes."),
func = function(name, param)
local ret = nil
for name,fs in pairs(fs_themes.themes) do
if ret == nil then
ret = name
else
ret = ret .. ", " .. name
end
end
if ret == nil then
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ret = S("No themes are installed!")
end
return true, ret
end
}
)
minetest.register_chatcommand(
"set_theme",
{
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params = S("<theme_name>"),
description = S("Sets your theme for GUI (Formspecs) windows."),
func = function(name, param)
if fs_themes.set_theme(minetest.get_player_by_name(name), param) then
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return true, S("Theme set!")
elseif param ~= "" then
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return false, string.format(S("No such theme “%s”."), param)
else
return false
end
end
}
)
-- Whenever a player joins, set their formspecs theme.
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minetest.register_on_joinplayer(
function(player)
local player_name = player:get_player_name()
local default_theme = minetest.settings:get("fs_default_theme")
local player_theme = storage:get_string(player_name)
-- Set the “default” theme (inherited from whatever mods load before fs_themes)
if not fs_themes.themes["default"] then
fs_themes.themes["default"] = player:get_formspec_prepend()
end
-- If a player has a preferred theme we cannot use, complain & use default.
if player_theme ~= "" and not fs_themes.set_theme(player, player_theme) then
minetest.chat_send_player(
player_name,
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string.format(S("The theme “%s” no longer exists! Resetting preference."), player_theme))
player_theme = ""
storage:set_string(player_name, "")
end
if player_theme == "" and default_theme and default_theme ~= "" then
fs_themes.set_theme(player, default_theme)
end
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end
)
-- Register all themes in the ./themes/ directory, one by one.
local theme_dir_path = modpath .. "/themes/"
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local theme_file_paths = minetest.get_dir_list(theme_dir_path, false)
for _, file_name in pairs(theme_file_paths) do
local fs_file, open_err = io.open(theme_dir_path .. file_name, "r")
if fs_file == nil then
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minetest.log("warning", string.format(S("Theme “%s” could not be opened: %s"), name, open_err))
return false
end
local fs_file_contents = fs_file:read("*all")
fs_themes.register_theme(file_name, fs_file_contents)
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end