Added an `interactive' flag to new_game_desc(), which toggles Mines

between on the one hand generating indeterminate game descriptions
awaiting the initial click, and on the other hand generating
concrete ones which have had their initial click. This makes `mines
--generate' do something useful.

[originally from svn r5869]

cube.c

@@ -586,7 +586,7 @@ static void classify_grid_square_callback(void *ctx, struct grid_square *sq)
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     struct grid_data data;
     int i, j, k, m, area, facesperclass;

fifteen.c

@@ -151,7 +151,7 @@ static int perm_parity(int *perm, int n)
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     int gap, n, i, x;
     int x1, x2, p1, p2, parity;

gtk.c

@@ -1307,7 +1307,7 @@ int main(int argc, char **argv)
 
 	while (n-- > 0) {
 	    game_aux_info *aux = NULL;
-	    char *desc = thegame.new_desc(par, rs, &aux);
+	    char *desc = thegame.new_desc(par, rs, &aux, FALSE);
 	    printf("%s:%s\n", parstr, desc);
 	    sfree(desc);
 	    if (aux)

midend.c

@@ -178,7 +178,8 @@ void midend_new_game(midend_data *me)
 	me->aux_info = NULL;
 
         rs = random_init(me->seedstr, strlen(me->seedstr));
-        me->desc = me->ourgame->new_desc(me->curparams, rs, &me->aux_info);
+        me->desc = me->ourgame->new_desc(me->curparams, rs,
+					 &me->aux_info, TRUE);
         random_free(rs);
     }
 
@@ -521,7 +522,8 @@ float *midend_colours(midend_data *me, int *ncolours)
 
     if (me->nstates == 0) {
 	game_aux_info *aux = NULL;
-        char *desc = me->ourgame->new_desc(me->params, me->random, &aux);
+        char *desc = me->ourgame->new_desc(me->params, me->random,
+					   &aux, TRUE);
         state = me->ourgame->new_game(me, me->params, desc);
         sfree(desc);
 	if (aux)

mines.c

@@ -1847,16 +1847,21 @@ static char *new_mine_layout(int w, int h, int n, int x, int y, int unique,
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
-#ifdef PREOPENED
+    if (!interactive) {
+	/*
+	 * For batch-generated grids, pre-open one square.
+	 */
 	int x = random_upto(rs, params->w);
 	int y = random_upto(rs, params->h);
 	char *grid, *desc;
 
 	grid = new_mine_layout(params->w, params->h, params->n,
-			   x, y, params->unique, rs);
-#else
+			       x, y, params->unique, rs, &desc);
+	sfree(grid);
+	return desc;
+    } else {
 	char *rsdesc, *desc;
 
 	rsdesc = random_state_encode(rs);
@@ -1864,7 +1869,7 @@ static char *new_game_desc(game_params *params, random_state *rs,
 	sprintf(desc, "r%d,%c,%s", params->n, params->unique ? 'u' : 'a', rsdesc);
 	sfree(rsdesc);
 	return desc;
-#endif
+    }
 }
 
 static void game_free_aux_info(game_aux_info *aux)

net.c

@@ -1146,7 +1146,7 @@ static void perturb(int w, int h, unsigned char *tiles, int wrapping,
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     tree234 *possibilities, *barriertree;
     int w, h, x, y, cx, cy, nbarriers;

netslide.c

@@ -334,7 +334,7 @@ static char *validate_params(game_params *params)
  */
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     tree234 *possibilities, *barriertree;
     int w, h, x, y, cx, cy, nbarriers;

nullgame.c

@@ -84,7 +84,7 @@ static char *validate_params(game_params *params)
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     return dupstr("FIXME");
 }

pattern.c

@@ -475,7 +475,7 @@ struct game_aux_info {
 };
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     unsigned char *grid;
     int i, j, max, rowlen, *rowdata;

puzzles.h

@@ -214,7 +214,7 @@ struct game {
     game_params *(*custom_params)(config_item *cfg);
     char *(*validate_params)(game_params *params);
     char *(*new_desc)(game_params *params, random_state *rs,
-		      game_aux_info **aux);
+		      game_aux_info **aux, int interactive);
     void (*free_aux_info)(game_aux_info *aux);
     char *(*validate_desc)(game_params *params, char *desc);
     game_state *(*new_game)(midend_data *me, game_params *params, char *desc);

rect.c

@@ -1054,7 +1054,7 @@ struct game_aux_info {
 };
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     int *grid, *numbers = NULL;
     struct rectlist *list;

sixteen.c

@@ -194,7 +194,7 @@ static int perm_parity(int *perm, int n)
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     int stop, n, i, x;
     int x1, x2, p1, p2;

solo.c

@@ -1397,7 +1397,7 @@ struct game_aux_info {
 };
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     int c = params->c, r = params->r, cr = c*r;
     int area = cr*cr;

twiddle.c

@@ -308,7 +308,7 @@ static int grid_complete(int *grid, int wh, int orientable)
 }
 
 static char *new_game_desc(game_params *params, random_state *rs,
-			   game_aux_info **aux)
+			   game_aux_info **aux, int interactive)
 {
     int *grid;
     int w = params->w, h = params->h, n = params->n, wh = w*h;