[Fix] Doxygen comments.

src/lephisto.c

@@ -64,12 +64,15 @@ static void data_name(void);
 /* Update. */
 static void fps_control(void);
 static void update_all(void);
+static void update_routine(double dt);
 static void render_all(void);
 
 
-/* @brief The entry point of Lephisto. */
-/* @param[in] argc Number of arguments. */
-/* @param[in] argv Array of argc arguments. */
+/** @brief The entry point of Lephisto.
+ *  @param[in] argc Number of arguments.
+ *  @param[in] argv Array of argc arguments.
+ *  @return EXIT_SUCCESS on success.
+ */
 #ifdef WIN32
 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR lpCmdLine,
                    int nCmdShow) {
@@ -215,6 +218,9 @@ int main(int argc, char** argv) {
   exit(EXIT_SUCCESS);
 }
 
+/**
+ * Load all the data, makes main() simpler.
+ */
 void load_all(void) {
   /* Ordering of these is very important as they are interdependent. */
   commodity_load();
@@ -227,7 +233,9 @@ void load_all(void) {
   space_load();
 }
 
-/* @brief Unloads all data, simplifies main(). */
+/**
+ * @brief Unloads all data, simplifies main().
+ */
 void unload_all(void) {
   /* Data unloading - order should not matter, but inverse load_all is good. */
   fleet_free();
@@ -239,7 +247,9 @@ void unload_all(void) {
   commodity_free();
 }
 
-/* @brief Slip main loop from main() for secondary loop hack in toolkit.c. */
+/**
+ * @brief Split main loop from main() for secondary loop hack in toolkit.c.
+ */
 void main_loop(void) {
   sound_update(); /* Do sound stuff. */
 
@@ -260,7 +270,9 @@ void main_loop(void) {
 
 static double fps_dt = 1.;
 static double dt = 0.;
-/* @brief Controls the FPS. */
+/**
+ * @brief Controls the FPS.
+ */
 static void fps_control(void) {
   unsigned int t;
 
@@ -279,37 +291,61 @@ static void fps_control(void) {
   }
 }
 
-/* @brief Updates the game itself (player flying around etc). */
+const double fps_min = 1./50.0;
+/**
+ * @brief Updates the game itself (player flying around etc).
+ */
 static void update_all(void) {
-#if 0
-  if(dt > 1./30.) {
-    /* Slow timers down and re-run calculations. */
+  double tmpdt;
+
+  if(dt > 1.) { /* Slow timers down and rerun calculations */
     pause_delay((unsigned int)dt*1000.);
     return;
   }
-#endif
+  /* We'll force a minimum of 50 FPS. */
+  else if(dt > fps_min) {
+    tmpdt = dt - fps_min;
+    pause_delay((unsigned int)(tmpdt*1000));
+    update_routine(fps_min);
+
+    /* Run as many cycles of dt=fps_min as needed. */
+    while(tmpdt > fps_min) {
+      pause_delay((unsigned int)(-fps_min*1000)); /* Increment counters */
+      update_routine(fps_min);
+      tmpdt -= fps_min;
+    }
+  }
+  update_routine(dt);
+}
+
+/**
+ * @brief Actually runs the update.
+ */
+static void update_routine(double dt) {
   space_update(dt);
   weapons_update(dt);
   spfx_update(dt);
   pilots_update(dt);
 }
 
-/* @brief == Renders the game. =========================== */
-/* Blitting order. (layers) */
-/* */
-/*    BG  | Stars and planets. */
-/*        | Background player stuff (planet targetting) */
-/*        | Background particles. */
-/*        | Back layer weapons. */
-/*        X */
-/*    N   | NPC ships. */
-/*        | Front layer weapons. */
-/*        | Normal layer particles (above ships). */
-/*        X */
-/*    FG  | Player. */
-/*        | Foreground particles. */
-/*        | Text and GUI. */
-/* ======================================================== */
+/**
+ * @brief Renders the game itself (player flying around etc.
+ *
+ * Blitting order. (layers)
+ *
+ * BG  | Stars and planets.
+ *     | Background player stuff (planet targetting)
+ *     | Background particles.
+ *     | Back layer weapons.
+ *     X
+ *  N   | NPC ships.
+ *      | Front layer weapons.
+ *      | Normal layer particles (above ships).
+ *      X
+ *  FG  | Player.
+ *      | Foreground particles.
+ *      | Text and GUI.
+ */
 static void render_all(void) {
   /* Setup. */
   spfx_start(dt);
@@ -331,7 +367,9 @@ static void render_all(void) {
 
 static double fps = 0.;
 static double fps_cur = 0.;
-/* @brief Displays FPS on the screen. */
+/**
+ * @brief Displays FPS on the screen.
+ */
 static void display_fps(const double dt) {
   double x, y;
   fps_dt += dt;
@@ -348,7 +386,9 @@ static void display_fps(const double dt) {
     gl_print(NULL, x, y, NULL, "%3.2f", fps);
 }
 
-/* @brief Set the data module's name. */
+/*
+ * @brief Set the data module's name.
+ */
 static void data_name(void) {
   uint32_t bufsize;
   char* buf;
@@ -401,7 +441,9 @@ static void data_name(void) {
   xmlCleanupParser();
 }
 
-/* @brief Set the window caption. */
+/*
+ * @brief Set the window caption.
+ */
 static void window_caption(void) {
   char tmp[DATA_NAME_LEN+10];