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puzzles: resync with upstream

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This brings puzzles to upstream commit 84d3fd2.

Change-Id: I808a197f868032d771fc101a15666c5ec4b9f94b
This commit is contained in:
Franklin Wei 2017-09-30 17:47:13 -04:00
parent ea679de837
commit b9386109e8
26 changed files with 1037 additions and 583 deletions
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15
apps/plugins/puzzles/src/pattern.c
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@ -310,7 +310,18 @@ static void generate(random_state *rs, int w, int h, unsigned char *retgrid)
fgrid2 = snewn(w*h, float);
memcpy(fgrid2, fgrid, w*h*sizeof(float));
qsort(fgrid2, w*h, sizeof(float), float_compare);
threshold = fgrid2[w*h/2];
/* Choose a threshold that makes half the pixels black. In case of
* an odd number of pixels, select randomly between just under and
* just over half. */
{
int index = w * h / 2;
if (w & h & 1)
index += random_upto(rs, 2);
if (index < w*h)
threshold = fgrid2[index];
else
threshold = fgrid2[w*h-1] + 1;
}
sfree(fgrid2);
for (i = 0; i < h; i++) {
@ -448,6 +459,8 @@ static int do_row(unsigned char *known, unsigned char *deduced,
if (rowlen == 0) {
memset(deduced, DOT, len);
} else if (rowlen == 1 && data[0] == len) {
memset(deduced, BLOCK, len);
} else {
do_recurse(known, deduced, row, minpos_done, maxpos_done, minpos_ok,
maxpos_ok, data, len, freespace, 0, 0);