X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/dafd6cf6826f9bbd27ddd780fab48221d4706556..e4b6a85b3c76d4002feff93c0dc268366192f906:/puzzles.h

diff --git a/puzzles.h b/puzzles.h
index 007dfee..a962bc3 100644
--- a/puzzles.h
+++ b/puzzles.h
@@ -204,6 +204,7 @@ midend *midend_new(frontend *fe, const game *ourgame,
 		   const drawing_api *drapi, void *drhandle);
 void midend_free(midend *me);
 void midend_set_params(midend *me, game_params *params);
+game_params *midend_get_params(midend *me);
 void midend_size(midend *me, int *x, int *y, int expand);
 void midend_new_game(midend *me);
 void midend_restart_game(midend *me);
@@ -217,7 +218,7 @@ int midend_num_presets(midend *me);
 void midend_fetch_preset(midend *me, int n,
                          char **name, game_params **params);
 int midend_wants_statusbar(midend *me);
-enum { CFG_SETTINGS, CFG_SEED, CFG_DESC };
+enum { CFG_SETTINGS, CFG_SEED, CFG_DESC, CFG_FRONTEND_SPECIFIC };
 config_item *midend_get_config(midend *me, int which, char **wintitle);
 char *midend_set_config(midend *me, int which, config_item *cfg);
 char *midend_game_id(midend *me, char *id);
@@ -323,6 +324,20 @@ void ps_free(psdata *ps);
 drawing *ps_drawing_api(psdata *ps);
 
 /*
+ * combi.c: provides a structure and functions for iterating over
+ * combinations (i.e. choosing r things out of n).
+ */
+typedef struct _combi_ctx {
+  int r, n, nleft, total;
+  int *a;
+} combi_ctx;
+
+combi_ctx *new_combi(int r, int n);
+void reset_combi(combi_ctx *combi);
+combi_ctx *next_combi(combi_ctx *combi); /* returns NULL for end */
+void free_combi(combi_ctx *combi);
+
+/*
  * Data structure containing the function calls and data specific
  * to a particular game. This is enclosed in a data structure so
  * that a particular platform can choose, if it wishes, to compile