MasscollabsGamingStudios/gnome-chess
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Prompt the player when claiming a draw is possible

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=727789
This commit is contained in:
Michael Catanzaro 2014-04-08 22:43:50 -05:00
parent b1128fa66b
commit 2ed16b90f7
2 changed files with 66 additions and 5 deletions
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6
lib/chess-game.vala
View file

@ -212,7 +212,7 @@ public class ChessGame
return true;
}
private bool is_fifty_move_rule_fulfilled ()
public bool is_fifty_move_rule_fulfilled ()
{
/* Fifty moves per player without capture or pawn advancement */
return current_state.halfmove_clock >= 100;
@ -305,7 +305,7 @@ public class ChessGame
ended ();
}
private bool is_three_fold_repeat ()
public bool is_three_fold_repeat ()
{
foreach (var state in move_stack)
{
@ -316,7 +316,7 @@ public class ChessGame
return false;
}
public int state_repeated_times (ChessState s1)
private int state_repeated_times (ChessState s1)
{
var count = 1;

65
src/gnome-chess.vala
View file

@ -50,6 +50,7 @@ public class Application : Gtk.Application
private string autosave_filename;
private File game_file;
private bool game_needs_saving;
private bool allow_claim_draw_dialog;
private List<AIProfile> ai_profiles;
private ChessPlayer? opponent = null;
private ChessPlayer? human_player = null;
@ -728,8 +729,13 @@ public class Application : Gtk.Application
if (game.clock != null)
enable_window_action (PAUSE_RESUME_ACTION_NAME);
if (game.is_started && opponent_engine != null && player == opponent)
opponent_engine.move ();
if (game.is_started)
{
if (opponent_engine != null && player == opponent)
opponent_engine.move ();
else if (game.can_claim_draw () && allow_claim_draw_dialog)
present_claim_draw_dialog ();
}
}
private void set_move_text (Gtk.TreeIter iter, ChessMove move)
@ -1300,6 +1306,60 @@ public class Application : Gtk.Application
return true;
}
private void present_claim_draw_dialog ()
requires (game.can_claim_draw ())
{
/* Manually since we don't want to show the pause overlay */
if (game.clock != null)
game.clock.pause ();
var dialog = new Gtk.MessageDialog (window,
Gtk.DialogFlags.MODAL,
Gtk.MessageType.QUESTION,
Gtk.ButtonsType.NONE,
/* Title of claim draw dialog */
_("Would you like to claim a draw?"));
string reason;
if (game.is_fifty_move_rule_fulfilled ())
{
/* Message in claim draw dialog when triggered by fifty-move rule */
reason = _("Fifty moves have passed without a capture or pawn advancement.");
}
else if (game.is_three_fold_repeat ())
{
/* Message in claim draw dialog when triggered by three-fold repetition */
reason = _("The current board position has occurred three times.");
}
else assert_not_reached ();
dialog.format_secondary_text ("%s\n%s", reason,
/* Displays in claim draw dialog to warn player that the dialog only appears once */
_("(You will not be offered this choice again.)"));
dialog.add_buttons (/* Option in claim draw dialog */
_("_Keep Playing"), Gtk.ResponseType.REJECT,
/* Option in claim draw dialog */
_("_Claim Draw"), Gtk.ResponseType.ACCEPT,
null);
var response = dialog.run ();
dialog.destroy ();
if (response == Gtk.ResponseType.ACCEPT)
{
game.current_player.claim_draw ();
}
else
{
/* Display this dialog only once per game */
allow_claim_draw_dialog = false;
if (game.clock != null)
game.clock.unpause ();
}
}
public void new_game_cb ()
{
if (prompt_save_game (_("Save this game before starting a new one?")))
@ -2094,6 +2154,7 @@ public class Application : Gtk.Application
{
game_file = null;
allow_claim_draw_dialog = true;
disable_window_action (SAVE_GAME_AS_ACTION_NAME);
pgn_game = new PGNGame ();