ref: 5e1c11ab6945cd96a267a8b15f527f80bc0e35f6
parent: 660216a1c47263d785e8299eb10782f4ed1900e7
author: Simon Tatham <anakin@pobox.com>
date: Sun Jan 22 10:52:14 EST 2012
Trivial and silly patch to allow users to configure the Signpost victory roll so that adjacent arrows rotate in opposite directions, giving the impression that they're an interlocking field of gears. Possibly even more brain-twisting than the original version :-) [originally from svn r9384]
--- a/signpost.c
+++ b/signpost.c
@@ -2094,11 +2094,33 @@
if (state->nums[i] != ds->nums[i] ||
f != ds->f[i] || dirp != ds->dirp[i] ||
force || !ds->started) {+ int sign;
+ {+ /*
+ * Trivial and foolish configurable option done on
+ * purest whim. With this option enabled, the
+ * victory flash is done by rotating each square
+ * in the opposite direction from its immediate
+ * neighbours, so that they behave like a field of
+ * interlocking gears. With it disabled, they all
+ * rotate in the same direction. Choose for
+ * yourself which is more brain-twisting :-)
+ */
+ static int gear_mode = -1;
+ if (gear_mode < 0) {+ char *env = getenv("SIGNPOST_GEARS");+ gear_mode = (env && (env[0] == 'y' || env[0] == 'Y'));
+ }
+ if (gear_mode)
+ sign = 1 - 2 * ((x ^ y) & 1);
+ else
+ sign = 1;
+ }
tile_redraw(dr, ds,
BORDER + x * TILE_SIZE,
BORDER + y * TILE_SIZE,
state->dirs[i], dirp, state->nums[i], f,
- angle_offset, -1);
+ sign * angle_offset, -1);
ds->nums[i] = state->nums[i];
ds->f[i] = f;
ds->dirp[i] = dirp;