MasscollabsGamingStudios/gnome-chess
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Force engines to move after some timeout

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Prevent a buggy engine from living forever without moving,
causing the game to appear to hang.
https://bugzilla.gnome.org/show_bug.cgi?id=726455
This commit is contained in:
Sahil Sareen 2015-07-16 00:26:43 +05:30
parent ff3f644b97
commit 9329b590e4
1 changed files with 28 additions and 0 deletions
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28
src/gnome-chess.vala
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@ -64,6 +64,7 @@ public class ChessApplication : Gtk.Application
private ChessPlayer? opponent = null;
private ChessPlayer? human_player = null;
private ChessEngine? opponent_engine = null;
private int engine_timeout_counter = 10;
private const ActionEntry[] app_entries =
{
@ -816,8 +817,35 @@ public class ChessApplication : Gtk.Application
*/
}
private void check_engine_timeout ()
requires (engine_timeout_counter >= 0)
ensures (engine_timeout_counter >= 0)
{
if (opponent_engine == null)
return;
if (pgn_game.white_ai != null && game.current_player.color == Color.WHITE ||
pgn_game.black_ai != null && game.current_player.color == Color.BLACK)
{
engine_timeout_counter -= 1;
if (engine_timeout_counter == 0)
{
// Chess engine did not move for a long time
// End the game assuming a buggy engine
engine_error_cb (opponent_engine);
}
}
else
{
// Reset the engine timeout
engine_timeout_counter = 10;
}
}
private void game_clock_tick_cb (ChessClock clock)
{
check_engine_timeout ();
white_time_label.queue_draw ();
black_time_label.queue_draw ();
}