fixed lock-up when auto-testing tape which causes loop in game engine

It is possible to create endless loops in the game engine by using
recursive custom element properties. These endless loops are detected
and the user is notified by a request dialog about this problem to be
able to stop the running game. When auto-testing tapes on the command
line, answering a graphical request dialog is not possible, which
causes the program to hang.

This fix stops replaying the tape in this case (and skips the request
dialog), so auto-testing tapes can continue (with an unsolvable tape).

diff --git a/src/game.c b/src/game.c
index 89e9e7fac1c739df6326eb4276d28913d6794795..abc56d238a167278eb7769778ba0edc4e5269c40 100644 (file)
--- a/src/game.c
+++ b/src/game.c
@@ -11713,7 +11713,7 @@ static void GameActionsExt(void)
     Warn("element '%s' caused endless loop in game engine",
         EL_NAME(recursion_loop_element));
 
-    RequestQuitGameExt(FALSE, level_editor_test_game, message);
+    RequestQuitGameExt(program.headless, level_editor_test_game, message);
 
     recursion_loop_detected = FALSE;   // if game should be continued