269 lines
6.4 KiB
C++
269 lines
6.4 KiB
C++
/*
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Copyright (C) 2003 Parallel Realities
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "Starfighter.h"
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#if LINUX
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#include <sys/stat.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <errno.h>
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#endif
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/*
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Initalises a whole load of variables
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*/
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void initVars()
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{
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srand(time(NULL));
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for (int i = 0 ; i < 200 ; i++)
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{
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star[i].x = rand() % 800;
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star[i].y = rand() % 600;
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star[i].speed = 1 + (rand() % 3);
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}
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// These are good values for sound and music
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if (engine.useAudio)
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{
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Mix_Volume(-1, 25);
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Mix_VolumeMusic((int)engine.musicVolume);
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}
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}
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/*
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Something went wrong. This stops the game, present the error message and
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prompts the user to press space or ctrl to exit the game. This is unlikely to
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be seen by people unless something really stoopid happens!
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*/
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void showErrorAndExit(int errorId, const char *name)
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{
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clearScreen(black);
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if (errorId != 2)
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{
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drawString("A file error has occurred", -1, 200, FONT_RED);
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}
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else
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{
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printf("Couldn't create or write to directory '%s'\n", name);
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exit(1);
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}
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char string[255];
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switch(errorId)
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{
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case 0:
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strcpy(string, "");
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sprintf(string, "%s was not found in the Starfighter data package", name);
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drawString(string, -1, 250, FONT_WHITE);
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drawString("Please try again. If this error persists, contact the authors", -1, 275, FONT_WHITE);
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drawString("or reinstall the game", -1, 300, FONT_WHITE);
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break;
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case 1:
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drawString("Project: Starfighter encountered an error whilst", -1, 250, FONT_WHITE);
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drawString("attempting to load game data. Please try running", -1, 275, FONT_WHITE);
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drawString("the game again. If the errors persist, reinstall the game", -1, 300, FONT_WHITE);
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break;
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case 2:
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drawString("Project: Starfighter encountered a critical error", -1, 250, FONT_WHITE);
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drawString("while attempting to perform a required program function.", -1, 275, FONT_WHITE);
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drawString("Please contact the authors with details.", -1, 300, FONT_WHITE);
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break;
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}
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drawString("Project: Starfighter will now exit", -1, 450, FONT_WHITE);
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drawString("Press Space to continue", -1, 475, FONT_WHITE);
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updateScreen();
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engine.keyState[SDLK_SPACE] = 0;
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while (!engine.keyState[SDLK_SPACE])
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{
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getPlayerInput();
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delayFrame();
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}
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exit(1);
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}
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/*
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This bit is just for Linux users. It attempts to get the user's
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home directory, then creates the .parallelrealities and .parallelrealities/starfighter
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directories so that saves and temporary data files can be written there. Good, eh? :)
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*/
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#if LINUX
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static void setupUserHomeDirectory()
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{
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char *userHome;
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char *name = getlogin();
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passwd *pass;
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if (name != NULL)
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pass = getpwnam(name);
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else
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pass = getpwuid(geteuid());
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if (pass == NULL)
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{
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printf("Couldn't determine the user home directory. Exitting.\n");
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exit(1);
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}
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userHome = pass->pw_dir;
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char dir[PATH_MAX];
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strcpy(dir, "");
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sprintf(dir, "%s/.parallelrealities", userHome);
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if ((mkdir(dir, S_IRWXU|S_IRWXG|S_IROTH|S_IXOTH) != 0) && (errno != EEXIST))
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showErrorAndExit(2, dir);
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sprintf(dir, "%s/.parallelrealities/starfighter", userHome);
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if ((mkdir(dir, S_IRWXU|S_IRWXG|S_IROTH|S_IXOTH) != 0) && (errno != EEXIST))
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showErrorAndExit(2, dir);
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sprintf(engine.userHomeDirectory, "%s/.parallelrealities/starfighter/", userHome);
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}
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#endif
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/*
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Chugg chugg chugg.... brrr... chugg chugg chugg...brrrrrr... chugg ch..
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BRRRRRRRRRRRRRRRRRMMMMMMMMMMMMMMMMMMM!! Well, hopefully anyway! ;)
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*/
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void initSystem()
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{
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strcpy(engine.userHomeDirectory, "");
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#if LINUX
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setupUserHomeDirectory();
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#endif
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/* Initialize the SDL library */
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if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO) < 0) {
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printf("Couldn't initialize SDL: %s\n", SDL_GetError());
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exit(1);
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}
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char filename[PATH_MAX];
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int fullScreen = 0, useSound = 1, useMusic = 1;
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FILE *fp;
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sprintf(filename, "%sconf", engine.userHomeDirectory);
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fp = fopen(filename, "rb");
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if (fp != NULL)
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{
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fscanf(fp, "%d %d %d", &fullScreen, &useSound, &useMusic);
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fclose(fp);
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}
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engine.fullScreen = fullScreen;
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engine.useSound = useSound;
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engine.useMusic = useMusic;
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SDL_WM_SetCaption("Project: Starfighter", "starfighter");
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SDL_WM_SetIcon(loadImage("gfx/alienDevice.png"), NULL);
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if (engine.fullScreen)
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screen = SDL_SetVideoMode(800, 600, 0, SDL_DOUBLEBUF|SDL_HWPALETTE|SDL_FULLSCREEN);
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else
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screen = SDL_SetVideoMode(800, 600, 0, SDL_DOUBLEBUF|SDL_HWPALETTE);
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if (screen == NULL) {
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printf("Couldn't set 800x600x16 video mode: %s\n", SDL_GetError());
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exit(1);
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}
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if (engine.useAudio)
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{
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if (Mix_OpenAudio(48000, AUDIO_S16, engine.useAudio * 2, 1024) < 0)
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{
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printf("Warning: Couldn't set 48000 Hz 16-bit stereo audio - Reason: %s\n", Mix_GetError());
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printf("Sound and Music will be disabled\n");
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engine.useAudio = false;
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}
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}
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SDL_ShowCursor(SDL_DISABLE);
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SDL_EventState(SDL_MOUSEMOTION, SDL_DISABLE);
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}
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/*
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Removes [hopefully] all the resources that has been
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loaded and created during the game. This is called by
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atexit();
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*/
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void cleanUp()
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{
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freeGraphics();
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SDL_FreeSurface(background);
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freeSound();
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resetLists();
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delete(engine.bulletHead);
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delete(engine.explosionHead);
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delete(engine.collectableHead);
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delete(bufferHead);
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for (int i = 0 ; i < MAX_FONTSHAPES ; i++)
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{
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if (fontShape[i] != NULL)
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SDL_FreeSurface(fontShape[i]);
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}
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char filename[PATH_MAX];
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strcpy(filename, "");
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sprintf(filename, "%smusic.mod", engine.userHomeDirectory);
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remove(filename);
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sprintf(filename, "%smusic.s3m", engine.userHomeDirectory);
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remove(filename);
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if (engine.useAudio)
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{
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Mix_CloseAudio();
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}
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// Save the config using current settings
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FILE *fp;
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sprintf(filename, "%sconf", engine.userHomeDirectory);
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fp = fopen(filename, "wb");
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if (fp != NULL)
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{
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fprintf(fp, "%d %d %d\n", engine.fullScreen, engine.useSound, engine.useMusic);
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fclose(fp);
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}
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else
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{
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printf("Error saving config\n");
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}
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SDL_Quit();
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printf("Thank You for playing Starfighter\n");
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}
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