Add more keyboard controls to Slant.

2 files changed, 9 insertions, 1 deletions

diff --git a/puzzles.but b/puzzles.but
index d0b51de..65782af 100644
--- a/puzzles.but
+++ b/puzzles.but
@@ -1709,7 +1709,10 @@ the game entirely with one button if you need to.)
 
 You can also use the cursor keys to move around the grid. Pressing the
 return or space keys will place a \cw{\\} or a \cw{/}, respectively,
-and will then cycle them as above.
+and will then cycle them as above.  You can also press \cw{/} or
+\cw{\\} to place a \cw{/} or \cw{\\}, respectively, independent of
+what is already in the cursor square.  Backspace removes any line from
+the cursor square.
 
 (All the actions described in \k{common-actions} are also available.)
 
diff --git a/slant.c b/slant.c
index 6210d01..a7a3792 100644
--- a/slant.c
+++ b/slant.c
@@ -1719,6 +1719,11 @@ static char *interpret_move(const game_state *state, game_ui *ui,
         move_cursor(button, &ui->cur_x, &ui->cur_y, w, h, 0);
         ui->cur_visible = 1;
         return "";
+    } else if (button == '\\' || button == '\b' || button == '/') {
+	int x = ui->cur_x, y = ui->cur_y;
+	if (button == ("\\" "\b" "/")[state->soln[y*w + x] + 1]) return NULL;
+	sprintf(buf, "%c%d,%d", button == '\b' ? 'C' : button, x, y);
+	return dupstr(buf);
     }
 
     if (action != NONE) {