moved savelevel() code to level.h/c where it belongs to. :)
[supertux.git] / src / setup.c
index 0c09c08..d7b67f6 100644 (file)
@@ -7,7 +7,7 @@
   bill@newbreedsoftware.com
   http://www.newbreedsoftware.com/supertux/
   
-  April 11, 2000 - November 7, 2001
+  April 11, 2000 - February 1st, 2004
 */
 
 #include <stdio.h>
 #include <unistd.h>
 #include <SDL.h>
 #include <SDL_image.h>
-
-#ifndef NOSOUND
-#include <SDL_mixer.h>
+#ifndef NOOPENGL
+#include <SDL_opengl.h>
 #endif
 
 #ifdef LINUX
 #include <pwd.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <ctype.h>
 #endif
 
 #include "globals.h"
 #include "setup.h"
 #include "screen.h"
-
+#include "texture.h"
 
 /* Local function prototypes: */
 
 void seticon(void);
 void usage(char * prog, int ret);
 
+/* Does the given file exist and is it accessible? */
+int faccessible(char *filename)
+{
+  struct stat filestat;
+  if (stat(filename, &filestat) == -1)
+    return NO;
+  else
+    return YES;
+}
+
 
 /* --- SETUP --- */
 
-void st_setup(void)
+void st_directory_setup(void)
+{
+
+  /* Set SuperTux configuration and save directories */
+
+  /* Get home directory (from $HOME variable)... if we can't determine it,
+     use the current directory ("."): */
+  char *home;
+  if (getenv("HOME") != NULL)
+    home = getenv("HOME");
+  else
+    home = ".";
+
+  st_dir = (char *) malloc(sizeof(char) * (strlen(home) +
+                           strlen("/.supertux") + 1));
+  strcpy(st_dir, home);
+  strcat(st_dir, "/.supertux");
+
+  st_save_dir = (char *) malloc(sizeof(char) * (strlen(st_dir) + strlen("/save") + 1));
+
+  strcpy(st_save_dir,st_dir);
+  strcat(st_save_dir,"/save");
+
+  /* Create them. In the case they exist it won't destroy anything. */
+#ifdef LINUX
+
+  mkdir(st_dir, 0755);
+  mkdir(st_save_dir, 0755);
+#else
+  #ifdef WIN32
+
+  mkdir(st_dir);
+  mkdir(st_save_dir);
+#endif
+#endif
+}
+
+void st_general_setup(void)
 {
   /* Seed random number generator: */
-  
+
   srand(SDL_GetTicks());
-  
-  
+
+  /* Load global images: */
+          
+ text_load(&black_text,DATA_PREFIX "/images/status/letters-black.png");
+ text_load(&gold_text,DATA_PREFIX "/images/status/letters-gold.png");
+ text_load(&blue_text,DATA_PREFIX "/images/status/letters-blue.png");
+ text_load(&red_text,DATA_PREFIX "/images/status/letters-red.png");
+  /* Set icon image: */
+
+  seticon();
+  SDL_EnableUNICODE(1);
+
+}
+
+void st_video_setup(void)
+{
+
+if(screen != NULL)
+   SDL_FreeSurface(screen); 
+
   /* Init SDL Video: */
-  
+
   if (SDL_Init(SDL_INIT_VIDEO) < 0)
     {
       fprintf(stderr,
@@ -60,51 +126,153 @@ void st_setup(void)
       exit(1);
     }
 
+  /* Open display: */
 
-  /* Init Joystick: */
+  if(use_gl)
+  st_video_setup_gl();
+  else
+  st_video_setup_sdl();
   
+  texture_setup();
+    
+  /* Set window manager stuff: */
+
+  SDL_WM_SetCaption("Super Tux", "Super Tux");
+
+}
+
+void st_video_setup_sdl(void)
+{
+  if (use_fullscreen == YES)
+    {
+      screen = SDL_SetVideoMode(640, 480, 16, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
+      if (screen == NULL)
+        {
+          fprintf(stderr,
+                  "\nWarning: I could not set up fullscreen video for "
+                  "640x480 mode.\n"
+                  "The Simple DirectMedia error that occured was:\n"
+                  "%s\n\n", SDL_GetError());
+          use_fullscreen = NO;
+        }
+    }
+    else
+    {
+      screen = SDL_SetVideoMode(640, 480, 16, SDL_HWSURFACE | SDL_DOUBLEBUF );
+
+      if (screen == NULL)
+        {
+          fprintf(stderr,
+                  "\nError: I could not set up video for 640x480 mode.\n"
+                  "The Simple DirectMedia error that occured was:\n"
+                  "%s\n\n", SDL_GetError());
+          exit(1);
+        }
+    }
+}
+
+void st_video_setup_gl(void)
+{
+#ifndef NOOPENGL
+
+       SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
+       SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
+       SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
+       SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
+       SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+  if (use_fullscreen == YES)
+    {
+      screen = SDL_SetVideoMode(640, 480, 32, SDL_FULLSCREEN | SDL_OPENGL ) ; /* | SDL_HWSURFACE); */
+      if (screen == NULL)
+        {
+          fprintf(stderr,
+                  "\nWarning: I could not set up fullscreen video for "
+                  "640x480 mode.\n"
+                  "The Simple DirectMedia error that occured was:\n"
+                  "%s\n\n", SDL_GetError());
+          use_fullscreen = NO;
+        }
+    }
+    else
+    {
+      screen = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE | SDL_OPENGL | SDL_OPENGLBLIT  );
+
+      if (screen == NULL)
+        {
+          fprintf(stderr,
+                  "\nError: I could not set up video for 640x480 mode.\n"
+                  "The Simple DirectMedia error that occured was:\n"
+                  "%s\n\n", SDL_GetError());
+          exit(1);
+        }
+    }
+       
+       /*
+        * Set up OpenGL for 2D rendering.
+        */
+       glDisable(GL_DEPTH_TEST);
+       glDisable(GL_CULL_FACE);
+
+       glViewport(0, 0, screen->w, screen->h);
+       glMatrixMode(GL_PROJECTION);
+       glLoadIdentity();
+       glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
+
+       glMatrixMode(GL_MODELVIEW);
+       glLoadIdentity();
+       glTranslatef(0.0f, 0.0f, 0.0f);
+       
+#endif
+}
+
+void st_joystick_setup(void)
+{
+
+  /* Init Joystick: */
+
 #ifdef JOY_YES
   use_joystick = YES;
-  
+
   if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
     {
       fprintf(stderr, "Warning: I could not initialize joystick!\n"
               "The Simple DirectMedia error that occured was:\n"
               "%s\n\n", SDL_GetError());
-      
+
       use_joystick = NO;
     }
   else
     {
       /* Open joystick: */
-      
+
       if (SDL_NumJoysticks() <= 0)
         {
           fprintf(stderr, "Warning: No joysticks are available.\n");
-          
+
           use_joystick = NO;
         }
       else
         {
           js = SDL_JoystickOpen(0);
-          
+
           if (js == NULL)
             {
               fprintf(stderr, "Warning: Could not open joystick 1.\n"
                       "The Simple DirectMedia error that occured was:\n"
                       "%s\n\n", SDL_GetError());
-              
+
               use_joystick = NO;
             }
           else
             {
               /* Check for proper joystick configuration: */
-              
+
               if (SDL_JoystickNumAxes(js) < 2)
                 {
                   fprintf(stderr,
                           "Warning: Joystick does not have enough axes!\n");
-                  
+
                   use_joystick = NO;
                 }
               else
@@ -114,7 +282,7 @@ void st_setup(void)
                       fprintf(stderr,
                               "Warning: "
                               "Joystick does not have enough buttons!\n");
-                      
+
                       use_joystick = NO;
                     }
                 }
@@ -122,95 +290,62 @@ void st_setup(void)
         }
     }
 #endif
-  
-  
-  /* Init SDL Audio: */
-  
-  if (use_sound == YES)
+
+}
+
+void st_audio_setup(void)
+{
+
+  /* Init SDL Audio silently even if --disable-sound : */
+
+  if (audio_device == YES)
     {
       if (SDL_Init(SDL_INIT_AUDIO) < 0)
         {
-          fprintf(stderr,
-                  "\nWarning: I could not initialize audio!\n"
-                  "The Simple DirectMedia error that occured was:\n"
-                  "%s\n\n", SDL_GetError());
+          /* only print out message if sound or music
+             was not disabled at command-line
+           */
+          if (use_sound == YES || use_music == YES)
+            {
+              fprintf(stderr,
+                      "\nWarning: I could not initialize audio!\n"
+                      "The Simple DirectMedia error that occured was:\n"
+                      "%s\n\n", SDL_GetError());
+            }
+          /* keep the programming logic the same :-)
+             because in this case, use_sound & use_music' values are ignored
+             when there's no available audio device
+          */
           use_sound = NO;
+          use_music = NO;
+          audio_device = NO;
         }
     }
-  
-  
-  /* Open sound: */
-  
-#ifndef NOSOUND
-  if (use_sound == YES)
-    {
-      if (Mix_OpenAudio(11025, AUDIO_S16, 2, 512) < 0)
-        {
-          fprintf(stderr,
-                  "\nWarning: I could not set up audio for 11025 Hz "
-                  "16-bit stereo.\n"
-                  "The Simple DirectMedia error that occured was:\n"
-                  "%s\n\n", SDL_GetError());
-          use_sound = 0;
-        }
-    }
-#endif
 
 
-  /* Open display: */
-  
-  if (use_fullscreen == YES)
-    {
-      screen = SDL_SetVideoMode(640, 480, 16, SDL_FULLSCREEN) ; /* | SDL_HWSURFACE); */
-      if (screen == NULL)
-        {
-          fprintf(stderr,
-                  "\nWarning: I could not set up fullscreen video for "
-                  "640x480 mode.\n"
-                  "The Simple DirectMedia error that occured was:\n"
-                  "%s\n\n", SDL_GetError());
-          use_fullscreen = NO;
-        }
-    }
-  
-  if (use_fullscreen == NO)
+  /* Open sound silently regarless the value of "use_sound": */
+
+  if (audio_device == YES)
     {
-      screen = SDL_SetVideoMode(640, 480, 16, SDL_HWSURFACE | SDL_DOUBLEBUF);
-      
-      if (screen == NULL)
+      if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
         {
-          fprintf(stderr,
-                  "\nError: I could not set up video for 640x480 mode.\n"
-                  "The Simple DirectMedia error that occured was:\n"
-                  "%s\n\n", SDL_GetError());
-          exit(1);
+          /* only print out message if sound or music
+             was not disabled at command-line
+           */
+          if ((use_sound == YES) || (use_music == YES))
+            {
+              fprintf(stderr,
+                      "\nWarning: I could not set up audio for 44100 Hz "
+                      "16-bit stereo.\n"
+                      "The Simple DirectMedia error that occured was:\n"
+                      "%s\n\n", SDL_GetError());
+            }
+          use_sound = NO;
+          use_music = NO;
+          audio_device = NO;
         }
     }
-  
-  
-  /* Load global images: */
-  
-  letters_black = load_image(DATA_PREFIX "/images/status/letters-black.png",
-                            USE_ALPHA);
-
-  letters_gold = load_image(DATA_PREFIX "/images/status/letters-gold.png",
-                            USE_ALPHA);
 
-  letters_blue = load_image(DATA_PREFIX "/images/status/letters-blue.png",
-                            USE_ALPHA);
-
-  letters_red = load_image(DATA_PREFIX "/images/status/letters-red.png",
-                          USE_ALPHA);
-  
-  
-  /* Set icon image: */
-  
-  seticon();
-  
-  
-  /* Set window manager stuff: */
-  
-  SDL_WM_SetCaption("Super Tux", "Super Tux");
 }
 
 
@@ -218,6 +353,7 @@ void st_setup(void)
 
 void st_shutdown(void)
 {
+  close_audio();
   SDL_Quit();
 }
 
@@ -239,10 +375,10 @@ void seticon(void)
   int masklen;
   Uint8 * mask;
   SDL_Surface * icon;
-  
-  
+
+
   /* Load icon into a surface: */
-  
+
   icon = IMG_Load(DATA_PREFIX "/images/icon.png");
   if (icon == NULL)
     {
@@ -252,22 +388,22 @@ void seticon(void)
               "%s\n\n", DATA_PREFIX "images/icon.png", SDL_GetError());
       exit(1);
     }
-  
-  
+
+
   /* Create mask: */
-  
+
   masklen = (((icon -> w) + 7) / 8) * (icon -> h);
   mask = malloc(masklen * sizeof(Uint8));
   memset(mask, 0xFF, masklen);
-  
-  
+
+
   /* Set icon: */
-  
+
   SDL_WM_SetIcon(icon, mask);
-  
-  
+
+
   /* Free icon surface & mask: */
-  
+
   free(mask);
   SDL_FreeSurface(icon);
 }
@@ -278,52 +414,137 @@ void seticon(void)
 void parseargs(int argc, char * argv[])
 {
   int i;
-  
-  
+
   /* Set defaults: */
-  
+
+
+  debug_mode = NO;
   use_fullscreen = NO;
+  show_fps = NO;
+  use_gl = NO;    
+
+#ifndef NOSOUND
+
   use_sound = YES;
-  
-  
+  use_music = YES;
+  audio_device = YES;
+#else
+
+  use_sound = NO;
+  use_music = NO;
+  audio_device = NO;
+#endif
+
   /* Parse arguments: */
-  
+
   for (i = 1; i < argc; i++)
     {
       if (strcmp(argv[i], "--fullscreen") == 0 ||
-         strcmp(argv[i], "-f") == 0)
-       {
-         /* Use full screen: */
-         
-         use_fullscreen = YES;
-       }
+          strcmp(argv[i], "-f") == 0)
+        {
+          /* Use full screen: */
+
+          use_fullscreen = YES;
+        }
+      else if (strcmp(argv[i], "--show-fps") == 0)
+        {
+          /* Use full screen: */
+
+          show_fps = YES;
+        }
+      else if (strcmp(argv[i], "--opengl") == 0 ||
+          strcmp(argv[i], "-gl") == 0)
+        {
+       #ifndef NOOPENGL
+          /* Use OpengGL: */
+
+          use_gl = YES;
+       #endif
+        }
       else if (strcmp(argv[i], "--usage") == 0)
-       {
-         /* Show usage: */
-         
-         usage(argv[0], 0);
-       }
+        {
+          /* Show usage: */
+
+          usage(argv[0], 0);
+        }
       else if (strcmp(argv[i], "--version") == 0)
-       {
-         /* Show version: */
-         
-         printf("Super Tux - version " VERSION "\n");
-         exit(0);
-       }
+        {
+          /* Show version: */
+
+          printf("Super Tux - version " VERSION "\n");
+          exit(0);
+        }
+      else if (strcmp(argv[i], "--disable-sound") == 0)
+        {
+          /* Disable the compiled in sound feature */
+#ifndef NOSOUND
+          printf("Sounds disabled \n");
+          use_sound = NO;
+#else
+
+          printf("Warning: Sounds feature is not compiled in \n");
+#endif
+
+        }
+      else if (strcmp(argv[i], "--disable-music") == 0)
+        {
+          /* Disable the compiled in sound feature */
+#ifndef NOSOUND
+          printf("Music disabled \n");
+          use_music = NO;
+#else
+
+          printf("Warning: Music feature is not compiled in \n");
+#endif
+
+        }
+      else if (strcmp(argv[i], "--debug-mode") == 0)
+        {
+          /* Enable the debug-mode */
+          debug_mode = YES;
+
+        }
       else if (strcmp(argv[i], "--help") == 0)
-       {
-         /* Show version: */
+        {        /* Show help: */
+
+          printf("Super Tux " VERSION "\n\n");
+
+          printf("----------  Command-line options  ----------\n\n");
+
+          printf("  --opengl            - If opengl support was compiled in, this will enable the EXPERIMENTAL OpenGL mode.\n\n");
          
-         printf("Super Tux - Help summary\n");
-         printf("[ under construction ]\n");
-         exit(0);
-       }
+          printf("  --disable-sound     - If sound support was compiled in,  this will\n                        disable sound for this session of the game.\n\n");
+
+          printf("  --disable-music     - Like above, but this will disable music.\n\n");
+
+          printf("  --fullscreen        - Run in fullscreen mode.\n\n");
+
+          printf("  --debug-mode        - Enables the debug-mode, which is useful for developers.\n\n");
+
+          printf("  --help              - Display a help message summarizing command-line\n                        options, license and game controls.\n\n");
+
+          printf("  --usage             - Display a brief message summarizing command-line options.\n\n");
+
+          printf("  --version           - Display the version of SuperTux you're running.\n\n\n");
+
+
+          printf("----------          License       ----------\n\n");
+          printf("  This program comes with ABSOLUTELY NO WARRANTY.\n");
+          printf("  This is free software, and you are welcome to redistribute\n");
+          printf("  or modify it under certain conditions. See the file \n");
+          printf("  \"COPYING.txt\" for more details.\n\n\n");
+
+          printf("----------      Game controls     ----------\n\n");
+          printf("  Please see the file \"README.txt\"\n\n");
+
+          exit(0);
+        }
       else
-       {
-         /* Unknown - complain! */
-         
-         usage(argv[0], 1);
-       }
+        {
+          /* Unknown - complain! */
+
+          usage(argv[0], 1);
+        }
     }
 }
 
@@ -333,23 +554,24 @@ void parseargs(int argc, char * argv[])
 void usage(char * prog, int ret)
 {
   FILE * fi;
-  
-  
+
+
   /* Determine which stream to write to: */
-  
+
   if (ret == 0)
     fi = stdout;
   else
     fi = stderr;
-  
-  
+
+
   /* Display the usage message: */
-  
-  fprintf(fi, "Usage: %s [--fullscreen] | [--usage | --help | --version]\n",
-         prog);
-  
-  
+
+  fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version]\n",
+          prog);
+
+
   /* Quit! */
 
   exit(ret);
 }
+