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/*
* This file is part of the planetblupi source code
* Copyright (C) 1997, Daniel Roux & EPSITEC SA
* Copyright (C) 2017, Mathieu Schroeter
* http://epsitec.ch; http://www.blupi.org; http://github.com/blupi-games
*
* This program 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://gnu.org/licenses
*/
#include <algorithm>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <direct.h>
#define mkdir(a, b) _mkdir (a)
#else /* _WIN32 */
#include <sys/stat.h>
#endif /*! _WIN32 */
#include <SDL2/SDL_log.h>
#include <SDL2/SDL_mouse.h>
#include "blupi.h"
#include "def.h"
#include "misc.h"
// Affiche un message de debug.
void
OutputDebug (const char * pMessage)
{
SDL_LogDebug (SDL_LOG_CATEGORY_APPLICATION, "%s", pMessage);
}
// Conversion de la position de la souris.
Point
ConvLongToPos (LParam lParam)
{
Point pos;
pos.x = LOWORD (lParam); // horizontal position of cursor
pos.y = HIWORD (lParam); // vertical position of cursor
return pos;
}
static int g_seed;
/* Initialize the Microsoft pseudo-random generator */
void
InitRandom ()
{
g_seed = 1;
// srand (1);
}
/* We are not using rand from stdlib because on Linux the pseudo-generator
* is using an other algorithm. Then the behaviour is not the same on all
* platforms.
* See http://stackoverflow.com/a/1280765/842097
*/
static int
ms_rand ()
{
g_seed = g_seed * 0x343fd + 0x269EC3;
return (g_seed >> 0x10) & 0x7FFF;
}
/* Returns a random number between two values (included). */
Sint32
Random (Sint32 min, Sint32 max)
{
Sint32 n;
n = ms_rand (); // replace rand ();
n = min + (n % (max - min + 1));
return (Sint32) n;
}
std::string
GetLocale ()
{
return gettext ("en");
}
// Retourne le nom de dossier en cours.
std::string
GetBaseDir ()
{
return GetShareDir () + "planetblupi/";
}
std::string
GetShareDir ()
{
static std::string basePath;
if (!basePath.size ())
{
auto sdlBasePath = SDL_GetBasePath ();
sdlBasePath[strlen (sdlBasePath) - 1] = '\0';
basePath = sdlBasePath;
std::replace (basePath.begin (), basePath.end (), '\\', '/');
basePath = basePath.substr (0, basePath.find_last_of ("//") + 1);
SDL_free (sdlBasePath);
}
return basePath + "share/";
}
// Ajoute le chemin permettant de lire un fichier
// utilisateur.
void
AddUserPath (std::string & pFilename)
{
const char * pText;
size_t pos;
char last;
char * temp = SDL_GetPrefPath ("Epsitec SA", "Planet Blupi");
std::string path = temp;
pText = strstr (pFilename.c_str (), "/");
if (pText != nullptr)
{
pos = path.size () + (pText - pFilename.c_str ()) + 1;
path += pFilename;
last = path[pos];
path[pos] = 0;
mkdir (path.c_str (), 0755);
path[pos] = last;
}
else
path += pFilename;
pFilename = path;
SDL_free (temp);
}
bool
FileExists (
const std::string & filename, std::string & absolute, enum Location location)
{
absolute = filename;
FILE * file;
switch (location)
{
case LOCATION_BASE:
absolute = GetBaseDir () + filename;
break;
case LOCATION_USER:
AddUserPath (absolute);
break;
default:
case LOCATION_ABSOLUTE:
break;
}
file = fopen (absolute.c_str (), "rb");
if (file == nullptr)
return false;
fclose (file);
return true;
}
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