[Add] Fancy ass loading screen.

src/lephisto.c

@@ -67,8 +67,9 @@
 #define LEPHISTO_INIT_DELAY 3000 /**< Minimum amount of time to wait with loading screen. */
 
 static int quit = 0;              /**< For primary loop. */
-unsigned int time = 0; /**< USed to calculate FPS and movement, in pause.c */
+static unsigned int time = 0;     /**< Used to calculate FPS and movement, in pause.c */
-static char version[VERSION_LEN];
+static char version[VERSION_LEN]; /**< Contains version. */
+static glTexture* loading;        /**< Loading screen. */
 
 /* Just some default crap. */
 char* data = NULL;                  /**< Path to datafile. */
@@ -80,8 +81,11 @@ int indjoystick = -1;               /**< Index of joystick to use, -1 is none. *
 char* namjoystick = NULL;           /**< Name of joystick to use, NULL is none. */
 
 /* Prototypes. */
+/* Loading. */
 static void print_SDLversion(void);
-static void load_screen(void);
+static void loadscreen_load(void);
+static void loadscreen_render(double done, const char* msg);
+static void loadscreen_unload(void);
 static void load_all(void);
 static void unload_all(void);
 static void display_fps(const double dt);
@@ -158,8 +162,14 @@ int main(int argc, char** argv) {
     SDL_Quit();
     exit(EXIT_FAILURE);
   }
+
+  gl_fontInit(NULL, NULL, FONT_SIZE); /* Initializes default font size. */
+  gl_fontInit(&gl_smallFont, NULL, FONT_SIZE_SMALL);  /* Small font. */
   window_caption();
-  load_screen();
+
+  /* Display the load screen. */
+  loadscreen_load();
+  loadscreen_render(0., "Initializing subsystems...");
   time = SDL_GetTicks();
 
   /* OpenAL sound. */
@@ -201,14 +211,15 @@ int main(int argc, char** argv) {
     ERR("Unable to init the Nebulae subsystem!");
     /* Weirdness will accur. */
   }
-  gl_fontInit(NULL, NULL, FONT_SIZE); /* Init default font size. */
-  gl_fontInit(&gl_smallFont, NULL, FONT_SIZE_SMALL); /* Small font. */
   gui_init(); /* Init the GUI crap. */
   toolkit_init(); /* Init the toolkit. */
 
   /* Data loading. */
   load_all();
 
+  /* Unload load screen. */
+  loadscreen_unload();
+
   /* Start menu. */
   menu_main();
 
@@ -261,13 +272,12 @@ int main(int argc, char** argv) {
 }
 
 /**
- * @fn void load_scren(void)
+ * @fn void loadscreen_load(void)
  *
  * @brief Display a loading screen.
  */
-void load_screen(void) {
+void loadscreen_load(void) {
   int i;
-  glTexture* tex;
   char file_path[PATH_MAX];
   char** files;
   uint32_t nfiles;
@@ -292,15 +302,65 @@ void load_screen(void) {
 
   /* Load the texture. */
   snprintf(file_path, PATH_MAX, "../gfx/loading%03d.png", RNG(0, nload-1));
-  tex = gl_newImage(file_path);
+  loading = gl_newImage(file_path);
+}
 
-  /* Draw once, won't be redrawn. */
+/**
+ * @fn static void loadscreen_render(double done, const char* msg)
+ *
+ * @brief Render the load screen with message.
+ *    @param done Amount done (1. == completed).
+ *    @param msg Loading screen message.
+ */
+static void loadscreen_render(double done, const char* msg) {
+  double x, y, w, h, rh;
+
+  /* Clear background. */
   glClear(GL_COLOR_BUFFER_BIT);
-  gl_blitScale(tex, 0., 0., SCREEN_W, SCREEN_H, NULL);
-  SDL_GL_SwapBuffers();
 
+  /* Draw loading screen image. */
+  gl_blitScale(loading, 0., 0., SCREEN_W, SCREEN_H, NULL);
+
+  /* Draw progress bar. */
+  w = gl_screen.w * 0.4;
+  h = gl_screen.h * 0.02;
+  rh = h + gl_defFont.h + 4.;
+  x = -w/2.;
+  y = -h/2.;
+  /* BG. */
+  ACOLOUR(cBlack, 0.7);
+  glBegin(GL_QUADS);
+    glVertex2d(x-2.,        y-2. + 0.);
+    glVertex2d(x-2.,        y+2. + rh);
+    glVertex2d(x-2. + w+4., y+2. + rh);
+    glVertex2d(x-2. + w+4., y-2. + 0.);
+  glEnd();
+  /* FG. */
+  ACOLOUR(cConsole, 0.7);
+  glBegin(GL_QUADS);
+    glVertex2d(x,           y + 0.);
+    glVertex2d(x,           y + h);
+    glVertex2d(x + done*w,  y + h);
+    glVertex2d(x + done*w,  y + 0.);
+  glEnd();
+
+  /* Draw text. */
+  gl_print(&gl_defFont, x + gl_screen.w/2., y + gl_screen.h/2 + 2. + h,
+      &cConsole, msg);
+
+  /* Flip buffers. */
+  SDL_GL_SwapBuffers();
+}
+
+/**
+ * @fn static void loadscreen_unload(void)
+ *
+ * @brief Frees the loading screen.
+ */
+static void loadscreen_unload(void) {
   /* Free the textures. */
-  gl_freeTexture(tex);
+  gl_freeTexture(loading);
+  loading = NULL;
 }
 
 /**
@@ -308,16 +368,26 @@ void load_screen(void) {
  *
  * @brief Load all the data, makes main() simpler.
  */
+#define LOADING_STAGES  9. /**< Amount of loading stages. */
 void load_all(void) {
   /* Ordering of these is very important as they are interdependent. */
+  loadscreen_render(1./LOADING_STAGES, "Loading the pilot's food surplus...");
   commodity_load();
+  loadscreen_render(2./LOADING_STAGES, "Loading the powers that be...");
   factions_load(); /* Dep for fleet, space, missions. */
+  loadscreen_render(3./LOADING_STAGES, "Loading things to do...");
   missions_load(); /* No dep. */
+  loadscreen_render(4./LOADING_STAGES, "Loading firework displays...");
   spfx_load();
+  loadscreen_render(5./LOADING_STAGES, "Loading laser beams...");
   outfit_load();
+  loadscreen_render(6./LOADING_STAGES, "Loading floating homes...");
   ships_load();
+  loadscreen_render(7./LOADING_STAGES, "Loading rich snobs...");
   fleet_load();
+  loadscreen_render(8./LOADING_STAGES, "Loading the entire universe");
   space_load();
+  loadscreen_render(1./LOADING_STAGES, "Load Complete!!");
   xmlCleanupParser(); /* Only needed to be run after all the loading is done. */
 }