einstein/opensave.cpp

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2013-09-21 21:05:25 +00:00
#include <time.h>
#include <fstream>
#include "exceptions.h"
#include "utils.h"
#include "widgets.h"
#include "storage.h"
#include "opensave.h"
#include "unicode.h"
#include "convert.h"
#include "messages.h"
#define MAX_SLOTS 10
class SavedGame
{
private:
std::wstring fileName;
bool exists;
std::wstring name;
public:
SavedGame(const std::wstring &fileName);
SavedGame(const SavedGame &s): fileName(s.fileName), name(s.name) {
exists = s.exists;
};
public:
const std::wstring& getFileName() { return fileName; };
std::wstring getName() { return exists ? name : msg(L"empty"); };
bool isExists() { return exists; };
};
SavedGame::SavedGame(const std::wstring &s): fileName(s)
{
exists = false;
try {
std::ifstream stream(toMbcs(fileName).c_str(), std::ifstream::in |
std::ifstream::binary);
if (stream.fail())
throw Exception(L"Can't open file");
name = readString(stream);
stream.close();
exists = true;
} catch (...) { }
}
class OkCommand: public Command
{
private:
Area &area;
bool *ok;
public:
OkCommand(Area &a, bool *o): area(a) { ok = o; };
virtual void doAction() {
*ok = true;
area.finishEventLoop();
};
};
class SaveCommand: public Command
{
private:
SavedGame &savedGame;
Area *parentArea;
bool *saved;
Font *font;
std::wstring defaultName;
Game *game;
public:
SaveCommand(SavedGame &sg, Font *f, Area *area, bool *s,
const std::wstring &dflt, Game *g): savedGame(sg), defaultName(dflt)
{
parentArea = area;
saved = s;
font = f;
game = g;
};
public:
virtual void doAction() {
Area area;
area.add(parentArea, false);
area.add(new Window(170, 280, 460, 100, L"blue.bmp"));
std::wstring name;
if (savedGame.isExists())
name = savedGame.getName();
else
name = defaultName;
area.add(new Label(font, 180, 300, 255,255,0, msg(L"enterGame")));
area.add(new InputField(340, 300, 280, 26, L"blue.bmp", name, 20,
255,255,0, font));
ExitCommand exitCmd(area);
OkCommand okCmd(area, saved);
area.add(new Button(310, 340, 80, 25, font, 255,255,0, L"blue.bmp",
msg(L"ok"), &okCmd));
area.add(new Button(400, 340, 80, 25, font, 255,255,0, L"blue.bmp",
msg(L"cancel"), &exitCmd));
area.add(new KeyAccel(SDLK_ESCAPE, &exitCmd));
area.add(new KeyAccel(SDLK_RETURN, &okCmd));
area.run();
if (*saved) {
*saved = false;
try {
std::ofstream stream(toMbcs(savedGame.getFileName()).
c_str(), std::ofstream::out | std::ofstream::binary);
if (stream.fail())
throw Exception(L"Error creating save file");
writeString(stream, name);
game->save(stream);
if (stream.fail())
throw Exception(L"Error saving game");
stream.close();
*saved = true;
} catch (...) {
showMessageWindow(&area, L"redpattern.bmp", 300, 80, font,
255,255,255, msg(L"saveError"));
}
parentArea->finishEventLoop();
} else {
parentArea->updateMouse();
parentArea->draw();
}
};
};
static std::wstring getSavesPath()
{
#ifndef WIN32
std::wstring path(fromMbcs(getenv("HOME")) +
std::wstring(L"/.einstein/save"));
#else
std::wstring path(getStorage()->get(L"path", L""));
if (path.length() > 0)
path += L"\\";
path += L"save";
#endif
ensureDirExists(path);
return path;
}
typedef std::list<SavedGame> SavesList;
static void showListWindow(SavesList &list, Command **commands,
const std::wstring &title, Area &area, Font *font)
{
Font titleFont(L"nova.ttf", 26);
area.add(new Window(250, 90, 300, 420, L"blue.bmp"));
area.add(new Label(&titleFont, 250, 95, 300, 40, Label::ALIGN_CENTER,
Label::ALIGN_MIDDLE, 255,255,0, title));
ExitCommand exitCmd(area);
area.add(new Button(360, 470, 80, 25, font, 255,255,0, L"blue.bmp",
msg(L"close"), &exitCmd));
area.add(new KeyAccel(SDLK_ESCAPE, &exitCmd));
int pos = 150;
int no = 0;
for (SavesList::iterator i = list.begin(); i != list.end(); i++) {
SavedGame &game = *i;
area.add(new Button(260, pos, 280, 25, font, 255,255,255, L"blue.bmp",
game.getName(), commands[no++]));
pos += 30;
}
area.run();
}
bool saveGame(Area *parentArea, Game *game)
{
std::wstring path = getSavesPath();
Area area;
area.add(parentArea, false);
Font font(L"laudcn2.ttf", 14);
bool saved = false;
SavesList list;
Command **commands = new Command*[MAX_SLOTS];
for (int i = 0; i < MAX_SLOTS; i++) {
SavedGame sg(path + L"/" + toString(i) + L".sav");
list.push_back(sg);
commands[i] = new SaveCommand(*(--(list.end())), &font,
&area, &saved, L"game " + toString(i+1), game);
}
showListWindow(list, commands, msg(L"saveGame"), area, &font);
for (int i = 0; i < MAX_SLOTS; i++)
delete commands[i];
delete[] commands;
return saved;
}
class LoadCommand: public Command
{
private:
SavedGame &savedGame;
Area *parentArea;
bool *saved;
Font *font;
std::wstring defaultName;
Game **game;
public:
LoadCommand(SavedGame &sg, Font *f, Area *area, Game **g):
savedGame(sg)
{
parentArea = area;
font = f;
game = g;
};
public:
virtual void doAction() {
try {
std::ifstream stream(toMbcs(savedGame.getFileName()).c_str(),
std::ifstream::in | std::ifstream::binary);
if (stream.fail())
throw Exception(L"Error opening save file");
readString(stream);
Game *g = new Game(stream);
if (stream.fail())
throw Exception(L"Error loading game");
stream.close();
*game = g;
} catch (...) {
showMessageWindow(parentArea, L"redpattern.bmp", 300, 80, font,
255,255,255, L"Error loadng game");
}
parentArea->finishEventLoop();
};
};
Game* loadGame(Area *parentArea)
{
std::wstring path = getSavesPath();
Area area;
area.add(parentArea, false);
Font font(L"laudcn2.ttf", 14);
Game *newGame = NULL;
SavesList list;
Command **commands = new Command*[MAX_SLOTS];
for (int i = 0; i < MAX_SLOTS; i++) {
SavedGame sg(path + L"/" + toString(i) + L".sav");
list.push_back(sg);
if (sg.isExists())
commands[i] = new LoadCommand(*(--(list.end())), &font, &area,
&newGame);
else
commands[i] = NULL;
}
showListWindow(list, commands, msg(L"loadGame"), area, &font);
for (int i = 0; i < MAX_SLOTS; i++)
delete commands[i];
delete[] commands;
return newGame;
}