Add a function to every game backend which indicates whether a game

state is in a solved position, and a midend function wrapping it.

(Or, at least, a situation in which further play is pointless. The
point is, given that game state, would it be a good idea for a front
end that does that sort of thing to proactively provide the option to
start a fresh game?)

[originally from svn r9140]

1 files changed, 2 insertions, 0 deletions

diff --git a/puzzles.h b/puzzles.h
index 6933e70..1561f4a 100644
--- a/puzzles.h
+++ b/puzzles.h
@@ -253,6 +253,7 @@ char *midend_get_game_id(midend *me);
 int midend_can_format_as_text_now(midend *me);
 char *midend_text_format(midend *me);
 char *midend_solve(midend *me);
+int midend_is_solved(midend *me);
 int midend_can_undo(midend *me);
 int midend_can_redo(midend *me);
 void midend_supersede_game_desc(midend *me, char *desc, char *privdesc);
@@ -478,6 +479,7 @@ struct game {
 			 game_ui *ui);
     float (*flash_length)(game_state *oldstate, game_state *newstate, int dir,
 			  game_ui *ui);
+    int (*is_solved)(game_state *state);
     int can_print, can_print_in_colour;
     void (*print_size)(game_params *params, float *x, float *y);
     void (*print)(drawing *dr, game_state *state, int tilesize);