remove two mysterious crashes (although I don't know why it was broken to begin with)

[xonotic/netradiant.git] / radiant / environment.cpp

diff --git a/radiant/environment.cpp b/radiant/environment.cpp
index 45266919f7688470e1fdcd2cb8f33684a1ea2713..16aba7f7098089e52ee18c0d64928fae96d7523a 100644 (file)
--- a/radiant/environment.cpp
+++ b/radiant/environment.cpp
@@ -26,9 +26,9 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "stream/stringstream.h"
 #include "debugging/debugging.h"
 #include "os/path.h"
+#include "os/file.h"
 #include "cmdlib.h"
 
-
 int g_argc;
 char** g_argv;
 
@@ -55,6 +55,98 @@ void args_init(int argc, char* argv[])
   g_argv = argv;
 }
 
+char *gamedetect_argv_buffer[1024];
+void gamedetect_found_game(char *game, char *path)
+{
+  int argc;
+  static char buf[128];
+
+  if(g_argv == gamedetect_argv_buffer)
+    return;
+
+  globalOutputStream() << "Detected game " << game << " in " << path << "\n";
+
+  sprintf(buf, "-%s-EnginePath", game);
+  argc = 0;
+  gamedetect_argv_buffer[argc++] = "-global-gamefile";
+  gamedetect_argv_buffer[argc++] = game;
+  gamedetect_argv_buffer[argc++] = buf;
+  gamedetect_argv_buffer[argc++] = path;
+  if((size_t) (argc + g_argc) >= sizeof(gamedetect_argv_buffer) / sizeof(*gamedetect_argv_buffer) - 1)
+    g_argc = sizeof(gamedetect_argv_buffer) / sizeof(*gamedetect_argv_buffer) - g_argc - 1;
+  memcpy(gamedetect_argv_buffer + 4, g_argv, sizeof(*gamedetect_argv_buffer) * g_argc);
+  g_argc += argc;
+  g_argv = gamedetect_argv_buffer;
+}
+
+bool gamedetect_check_game(char *gamefile, const char *checkfile1, const char *checkfile2, char *buf /* must have 64 bytes free after bufpos */, int bufpos)
+{
+       buf[bufpos] = '/';
+
+       strcpy(buf + bufpos + 1, checkfile1);
+       globalOutputStream() << "Checking for a game file in " << buf << "\n";
+       if(!file_exists(buf))
+               return false;
+
+       strcpy(buf + bufpos + 1, checkfile2);
+       globalOutputStream() << "Checking for a game file in " << buf << "\n";
+       if(!file_exists(buf))
+               return false;
+
+       buf[bufpos + 1] = 0;
+       gamedetect_found_game(gamefile, buf);
+       return true;
+}
+
+void gamedetect()
+{
+  // if we're inside a Nexuiz install
+  // default to nexuiz.game (unless the user used an option to inhibit this)
+  bool nogamedetect = false;
+  int i;
+  for(i = 1; i < g_argc - 1; ++i)
+    if(g_argv[i][0] == '-')
+       {
+      if(!strcmp(g_argv[i], "-gamedetect"))
+           nogamedetect = !strcmp(g_argv[i+1], "false");
+         ++i;
+       }
+  if(!nogamedetect)
+  {
+       static char buf[1024 + 64];
+       strncpy(buf, environment_get_app_path(), sizeof(buf));
+       buf[sizeof(buf) - 1 - 64] = 0;
+       if(!strlen(buf))
+         return;
+
+       char *p = buf + strlen(buf) - 1; // point directly on the slash of get_app_path
+       while(p != buf)
+       {
+         // TODO add more games to this
+
+         // try to detect Nexuiz installs
+#if defined(WIN32)
+         if(gamedetect_check_game("nexuiz.game", "data/common-spog.pk3", "nexuiz.exe", buf, p - buf))
+#elif defined(__APPLE__)
+         if(gamedetect_check_game("nexuiz.game", "data/common-spog.pk3", "Nexuiz.app/Contents/Info.plist", buf, p - buf))
+#else
+         if(gamedetect_check_game("nexuiz.game", "data/common-spog.pk3", "nexuiz-linux-glx.sh", buf, p - buf))
+#endif
+           return;
+
+         // try to detect Q2World installs
+         if(gamedetect_check_game("q2w.game", "default/quake2world.version", NULL, buf, p - buf))
+           return;
+
+         // we found nothing
+         // go backwards
+         --p;
+         while(p != buf && *p != '/' && *p != '\\')
+           --p;
+       }
+  }
+}
+
 namespace
 {
   CopiedString home_path;
@@ -145,6 +237,7 @@ void environment_init(int argc, char* argv[])
     app_path = getexename(real);
     ASSERT_MESSAGE(!string_empty(app_path.c_str()), "failed to deduce app path");
   }
+  gamedetect();
 }
 
 #elif defined(WIN32)
@@ -190,6 +283,7 @@ void environment_init(int argc, char* argv[])
     app << PathCleaned(filename);
     app_path = app.c_str();
   }
+  gamedetect();
 }
 
 #else