Forbid undo of new-game if it would change the params.

[sgt-puzzles.git] / flood.c

diff --git a/flood.c b/flood.c
index bbba91528bdee8f82e9993f122fa80deb7a72bf7..1262be8175cbb4ac17de13d0110f3b8753965781 100644 (file)
--- a/flood.c
+++ b/flood.c
@@ -697,8 +697,10 @@ static char *solve_game(const game_state *state, const game_state *currstate,
     char buf[256];
     struct solver_scratch *scratch;
 
-    if (currstate->complete)
+    if (currstate->complete) {
+        *error = "Puzzle is already solved";
         return NULL;
+    }
 
     /*
      * Find the best solution our solver can give.
@@ -1334,7 +1336,7 @@ static void game_print(drawing *dr, const game_state *state, int tilesize)
 const struct game thegame = {
     "Flood", "games.flood", "flood",
     default_params,
-    game_fetch_preset,
+    game_fetch_preset, NULL,
     decode_params,
     encode_params,
     free_params,