minetest/src/mods.h
Jürgen Doser 26a0efae23 Improve behaviour for empty modpacks and when no mods at all are installed:
Only show enable all / disable all buttons for all add-ons when at
least one add-on is installed. When no add-on ist installed, don't
show any buttons or checkboxes.

Added is_modpack flag to ModSpec to distinguish empty modpacks from
normal mods and check this flag in mod selection gui so that empty
modpacks are not treated like mods that can be enabled or disabled.
2013-01-22 19:05:28 +01:00

146 lines
3.6 KiB
C++

/*
Minetest-c55
Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
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 2.1 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MODS_HEADER
#define MODS_HEADER
#include "irrlichttypes.h"
#include <irrList.h>
#include <list>
#include <set>
#include <vector>
#include <string>
#include <map>
#include <exception>
class ModError : public std::exception
{
public:
ModError(const std::string &s)
{
m_s = "ModError: ";
m_s += s;
}
virtual ~ModError() throw()
{}
virtual const char * what() const throw()
{
return m_s.c_str();
}
std::string m_s;
};
struct ModSpec
{
std::string name;
std::string path;
//if normal mod:
std::set<std::string> depends;
std::set<std::string> unsatisfied_depends;
bool is_modpack;
// if modpack:
std::map<std::string,ModSpec> modpack_content;
ModSpec(const std::string name_="", const std::string path_="",
const std::set<std::string> depends_=std::set<std::string>()):
name(name_),
path(path_),
depends(depends_),
unsatisfied_depends(depends_),
is_modpack(false),
modpack_content()
{}
};
std::map<std::string,ModSpec> getModsInPath(std::string path);
// expands modpack contents, but does not replace them.
std::map<std::string, ModSpec> flattenModTree(std::map<std::string, ModSpec> mods);
// replaces modpack Modspecs with their content
std::vector<ModSpec> flattenMods(std::map<std::string,ModSpec> mods);
// removes Mods mentioned in exclude_mod_names
std::vector<ModSpec> filterMods(std::vector<ModSpec> mods,
std::set<std::string> exclude_mod_names);
// a ModConfiguration is a subset of installed mods, expected to have
// all dependencies fullfilled, so it can be used as a list of mods to
// load when the game starts.
class ModConfiguration
{
public:
ModConfiguration():
m_unsatisfied_mods(),
m_sorted_mods()
{}
ModConfiguration(std::string worldpath);
// adds all mods in the given path. used for games, modpacks
// and world-specific mods (worldmods-folders)
void addModsInPath(std::string path)
{
addMods(flattenMods(getModsInPath(path)));
}
// adds all mods in the given path whose name does not appear
// in the exclude_mods set.
void addModsInPathFiltered(std::string path, std::set<std::string> exclude_mods);
// adds all mods in the set.
void addMods(std::vector<ModSpec> mods);
// checks if all dependencies are fullfilled.
bool isConsistent()
{
return m_unsatisfied_mods.empty();
}
std::vector<ModSpec> getMods()
{
return m_sorted_mods;
}
std::list<ModSpec> getUnsatisfiedMods()
{
return m_unsatisfied_mods;
}
private:
// mods with unmet dependencies. This is a list and not a
// vector because we want easy removal of elements at every
// position.
std::list<ModSpec> m_unsatisfied_mods;
// list of mods sorted such that they can be loaded in the
// given order with all dependencies being fullfilled. I.e.,
// every mod in this list has only dependencies on mods which
// appear earlier in the vector.
std::vector<ModSpec> m_sorted_mods;
};
#endif