Introduce a new game backend function (there seem to have been a lot

[sgt/puzzles] / netslide.c

diff --git a/netslide.c b/netslide.c
index f6282eb..e6751fe 100644 (file)
--- a/netslide.c
+++ b/netslide.c
@@ -129,7 +129,7 @@ static int xyd_cmp(void *av, void *bv) {
     if (a->direction > b->direction)
        return +1;
     return 0;
-};
+}
 
 static struct xyd *new_xyd(int x, int y, int direction)
 {
@@ -417,7 +417,7 @@ static char *new_game_desc(game_params *params, random_state *rs,
 
        OFFSET(x2, y2, x1, y1, d1, params);
        d2 = F(d1);
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
        printf("picked (%d,%d,%c) <-> (%d,%d,%c)\n",
               x1, y1, "0RU3L567D9abcdef"[d1], x2, y2, "0RU3L567D9abcdef"[d2]);
 #endif
@@ -444,7 +444,7 @@ static char *new_game_desc(game_params *params, random_state *rs,
            xydp = find234(possibilities, &xyd1, NULL);
 
            if (xydp) {
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
                printf("T-piece; removing (%d,%d,%c)\n",
                       xydp->x, xydp->y, "0RU3L567D9abcdef"[xydp->direction]);
 #endif
@@ -471,7 +471,7 @@ static char *new_game_desc(game_params *params, random_state *rs,
            xydp = find234(possibilities, &xyd1, NULL);
 
            if (xydp) {
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
                printf("Loop avoidance; removing (%d,%d,%c)\n",
                       xydp->x, xydp->y, "0RU3L567D9abcdef"[xydp->direction]);
 #endif
@@ -506,7 +506,7 @@ static char *new_game_desc(game_params *params, random_state *rs,
            if (index(params, tiles, x3, y3))
                continue;              /* this would create a loop */
 
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
            printf("New frontier; adding (%d,%d,%c)\n",
                   x2, y2, "0RU3L567D9abcdef"[d]);
 #endif
@@ -1045,6 +1045,11 @@ static void slide_col(game_state *state, int dir, int col)
     slide_col_int(state->width, state->height, state->tiles, dir, col);
 }
 
+static void game_changed_state(game_ui *ui, game_state *oldstate,
+                               game_state *newstate)
+{
+}
+
 static game_state *make_move(game_state *state, game_ui *ui,
                              game_drawstate *ds, int x, int y, int button)
 {
@@ -1749,6 +1754,7 @@ const struct game thegame = {
     FALSE, game_text_format,
     new_ui,
     free_ui,
+    game_changed_state,
     make_move,
     game_size,
     game_colours,