Add a facility in the latin.c solver diagnostics to allow a puzzle

[sgt/puzzles] / net.c

diff --git a/net.c b/net.c
index 4fc5268..ecbbbfb 100644 (file)
--- a/net.c
+++ b/net.c
@@ -950,8 +950,10 @@ static void perturb(int w, int h, unsigned char *tiles, int wrapping,
     }
     sfree(perim2);
 
-    if (i == nperim)
+    if (i == nperim) {
+        sfree(perimeter);
        return;                        /* nothing we can do! */
+    }
 
     /*
      * Now we've constructed a new link, we need to find the entire
@@ -1650,7 +1652,7 @@ static game_state *new_game(midend *me, game_params *params, char *desc)
             if (!(barrier(state, x, 0) & U) ||
                 !(barrier(state, x, state->height-1) & D))
                 state->wrapping = TRUE;
-        for (y = 0; y < state->width; y++)
+        for (y = 0; y < state->height; y++)
             if (!(barrier(state, 0, y) & L) ||
                 !(barrier(state, state->width-1, y) & R))
                 state->wrapping = TRUE;
@@ -1978,7 +1980,11 @@ static char *interpret_move(game_state *state, game_ui *ui,
              * Middle button never drags: it only toggles the lock.
              */
             action = TOGGLE_LOCK;
-        } else if (button == LEFT_BUTTON || button == RIGHT_BUTTON) {
+        } else if (button == LEFT_BUTTON
+#ifndef STYLUS_BASED
+                   || button == RIGHT_BUTTON /* (see above) */
+#endif
+                  ) {
             /*
              * Otherwise, we note down the start point for a drag.
              */
@@ -1988,7 +1994,11 @@ static char *interpret_move(game_state *state, game_ui *ui,
             ui->dragstarty = y % TILE_SIZE;
             ui->dragged = FALSE;
             return nullret;            /* no actual action */
-        } else if (button == LEFT_DRAG || button == RIGHT_DRAG) {
+        } else if (button == LEFT_DRAG
+#ifndef STYLUS_BASED
+                   || button == RIGHT_DRAG
+#endif
+                  ) {
             /*
              * Find the new drag point and see if it necessitates a
              * rotation.
@@ -2037,7 +2047,11 @@ static char *interpret_move(game_state *state, game_ui *ui,
                 ui->dragstarty = yC;
                 ui->dragged = TRUE;
             }
-        } else if (button == LEFT_RELEASE || button == RIGHT_RELEASE) {
+        } else if (button == LEFT_RELEASE
+#ifndef STYLUS_BASED
+                   || button == RIGHT_RELEASE
+#endif
+                  ) {
             if (!ui->dragged) {
                 /*
                  * There was a click but no perceptible drag:
@@ -2061,8 +2075,7 @@ static char *interpret_move(game_state *state, game_ui *ui,
 
 #endif /* USE_DRAGGING */
 
-    } else if (button == CURSOR_UP || button == CURSOR_DOWN ||
-              button == CURSOR_RIGHT || button == CURSOR_LEFT) {
+    } else if (IS_CURSOR_MOVE(button)) {
         switch (button) {
           case CURSOR_UP:       dir = U; break;
           case CURSOR_DOWN:     dir = D; break;
@@ -2077,14 +2090,14 @@ static char *interpret_move(game_state *state, game_ui *ui,
     } else if (button == 'a' || button == 's' || button == 'd' ||
               button == 'A' || button == 'S' || button == 'D' ||
                button == 'f' || button == 'F' ||
-              button == CURSOR_SELECT  || button == CURSOR_SELECT2) {
+               IS_CURSOR_SELECT(button)) {
        tx = ui->cur_x;
        ty = ui->cur_y;
        if (button == 'a' || button == 'A' || button == CURSOR_SELECT)
            action = ROTATE_LEFT;
-       else if (button == 's' || button == 'S')
+       else if (button == 's' || button == 'S' || button == CURSOR_SELECT2)
            action = TOGGLE_LOCK;
-       else if (button == 'd' || button == 'D' || button == CURSOR_SELECT2)
+       else if (button == 'd' || button == 'D')
            action = ROTATE_RIGHT;
         else if (button == 'f' || button == 'F')
             action = ROTATE_180;
@@ -2184,7 +2197,7 @@ static char *interpret_move(game_state *state, game_ui *ui,
 static game_state *execute_move(game_state *from, char *move)
 {
     game_state *ret;
-    int tx, ty, n, noanim, orig;
+    int tx = -1, ty = -1, n, noanim, orig;
 
     ret = dup_game(from);
 
@@ -2233,6 +2246,7 @@ static game_state *execute_move(game_state *from, char *move)
        }
     }
     if (!noanim) {
+        if (tx == -1 || ty == -1) { free_game(ret); return NULL; }
        ret->last_rotate_x = tx;
        ret->last_rotate_y = ty;
     }