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////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Leo Tenenbaum
// This file is part of GraphColoring.
//
// GraphColoring is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GraphColoring 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with GraphColoring. If not, see <https://www.gnu.org/licenses/>.
////////////////////////////////////////////////////////////////////////////////
#include "graphcoloring.hpp"
#include "utils/windows.hpp"
#include "utils/filesystem.hpp"
#include <sstream>
namespace graphcoloring {
namespace filesystem = utils::filesystem;
const std::string GraphColoring::TITLE = "Graph Coloring";
GraphColoring::GraphColoring()
: state(State::MAIN_MENU)
{
window = new gui::Window("Graph Coloring", 800, 600);
CheckSaves();
window->OnActivate([this] (){ SwitchToMainMenu(); });
}
GraphColoring::~GraphColoring()
{
DeleteAll();
delete window;
}
void GraphColoring::CheckSaves()
{
if (filesystem::directory_exists("saves"))
{
// Check for version mismatch
pugi::xml_document saves_document;
saves_document.load_file(LevelSelect::LEVEL_LISTING_PATH);
pugi::xml_document assets_document;
assets_document.load_file("assets/levels/level-list.xml");
std::string saves_version(
saves_document.child("category-listing")
.attribute("version").value());
std::string assets_version(
assets_document.child("category-listing")
.attribute("version").value());
if (saves_version != assets_version)
{
// Copy new level list.
filesystem::remove_file(LevelSelect::LEVEL_LISTING_PATH);
filesystem::copy_file(
"assets/levels/level-list.xml",
LevelSelect::LEVEL_LISTING_PATH);
}
return;
}
// Create saves directory
filesystem::create_directory("saves");
filesystem::copy_file(
"assets/levels/level-list.xml", LevelSelect::LEVEL_LISTING_PATH);
pugi::xml_document document;
document.load_file(LevelSelect::LEVEL_LISTING_PATH);
for (pugi::xml_node category
: document.child("category-listing").children("category"))
{
std::stringstream filename;
filename << "saves/" << category.attribute("id").value();
filesystem::create_directory(filename.str());
}
}
void GraphColoring::DeleteAll()
{
mainMenu = nullptr;
levelSelect = nullptr;
level = nullptr;
window->RemoveAllCallbacks();
}
void GraphColoring::SwitchToMainMenu()
{
DeleteAll();
mainMenu = std::make_unique<MainMenu>(window,
[this] (){ SwitchToLevelSelect(); });
window->SetKeyupCallback([this] (gui::Window*){ // Press Escape to quit
window->Quit();
}, GDK_KEY_Escape);
}
void GraphColoring::SwitchToLevelSelect()
{
DeleteAll();
auto callback = [this](std::string category_id,std::string level_id) {
SwitchToLevel(category_id, level_id);
};
levelSelect = std::make_unique<LevelSelect>(window, callback);
window->SetKeyupCallback([this] (gui::Window*){ // Press Escape to go back to menu
SwitchToMainMenu();
}, GDK_KEY_Escape);
}
void GraphColoring::SwitchToLevel(std::string category_id, std::string level_id)
{
DeleteAll();
level = std::make_unique<Level>(window, category_id, level_id);
window->SetKeyupCallback([this] (gui::Window*) { // Press Escape to go back to level selection
level->Save();
SwitchToLevelSelect();
}, GDK_KEY_Escape);
window->SetKeyupCallback([this] (gui::Window*) { // Press Control-N to go to the next level
if (!window->IsControlDown()) return;
level->Save();
std::pair<std::string,std::string> next_level = level->NextLevel();
if (next_level.first.empty()) // No next level
SwitchToLevelSelect();
else
SwitchToLevel(next_level.first, next_level.second);
}, GDK_KEY_n);
}
void GraphColoring::Start()
{
window->Mainloop();
}
} // namespace graphcoloring
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