rnd-20091101-2-src

[rocksndiamonds.git] / src / libgame / misc.c

diff --git a/src/libgame/misc.c b/src/libgame/misc.c
index 9d23c75f838c42301f3b44f07ad27d530e9f124b..7883f325e4de89b6f8a18ab459958c3fed342905 100644 (file)
--- a/src/libgame/misc.c
+++ b/src/libgame/misc.c
@@ -337,13 +337,26 @@ unsigned int init_random_number(int nr, long seed)
 {
   if (seed == NEW_RANDOMIZE)
   {
-#if defined(TARGET_SDL)
-    seed = (long)SDL_GetTicks();
-#else
+    /* default random seed */
+    seed = (long)time(NULL);                   // seconds since the epoch
+
+#if !defined(PLATFORM_WIN32)
+    /* add some more randomness */
     struct timeval current_time;
 
     gettimeofday(&current_time, NULL);
-    seed = (long)current_time.tv_usec;
+
+    seed += (long)current_time.tv_usec;                // microseconds since the epoch
+#endif
+
+#if defined(TARGET_SDL)
+    /* add some more randomness */
+    seed += (long)SDL_GetTicks();              // milliseconds since SDL init
+#endif
+
+#if 1
+    /* add some more randomness */
+    seed += GetSimpleRandom(1000000);
 #endif
   }
 
@@ -624,6 +637,26 @@ boolean strSuffix(char *s, char *suffix)
          strncmp(&s[strlen(s) - strlen(suffix)], suffix, strlen(suffix)) == 0);
 }
 
+boolean strPrefixLower(char *s, char *prefix)
+{
+  char *s_lower = getStringToLower(s);
+  boolean match = strPrefix(s_lower, prefix);
+
+  free(s_lower);
+
+  return match;
+}
+
+boolean strSuffixLower(char *s, char *suffix)
+{
+  char *s_lower = getStringToLower(s);
+  boolean match = strSuffix(s_lower, suffix);
+
+  free(s_lower);
+
+  return match;
+}
+
 
 /* ------------------------------------------------------------------------- */
 /* command line option handling functions                                    */
@@ -1600,6 +1633,24 @@ boolean get_boolean_from_string(char *s)
   return result;
 }
 
+int get_switch3_from_string(char *s)
+{
+  char *s_lower = getStringToLower(s);
+  int result = FALSE;
+
+  if (strEqual(s_lower, "true") ||
+      strEqual(s_lower, "yes") ||
+      strEqual(s_lower, "on") ||
+      get_integer_from_string(s) == 1)
+    result = TRUE;
+  else if (strEqual(s_lower, "auto"))
+    result = AUTO;
+
+  free(s_lower);
+
+  return result;
+}
+
 
 /* ------------------------------------------------------------------------- */
 /* functions for generic lists                                               */