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This commit is contained in:
mike
2026-01-10 03:08:15 +01:00
parent 84d7bea32e
commit b1f262ac91
1 changed files with 42 additions and 26 deletions
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58
src/main/java/puzzle/SwedishGenerator.java
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@@ -170,6 +170,31 @@ public record SwedishGenerator(Rng rng) {
static boolean isDigit(byte b) { return (b & 48) == 48; }
boolean isDigitAt(int r, int c) { return isDigit(g[offset(r, c)]); }
boolean isDigitAt(int index) { return isDigit(g[index]); }
boolean isClue(int index) {
if (index < 64) {
return (bo[0] >> index & 1L) != 0;
}
return (bo[1] >> (index & 63) & 1L) != 0;
}
boolean clueless(int idx) {
if (idx < 64) {
val test = (1L << idx);
if ((test & bo[0]) != 0L) {
g[idx] = DASH;
bo[0] &= ~test;
return true;
}
return false;
} else {
val test = (1L << (idx & 63));
if ((test & bo[1]) != 0L) {
g[idx] = DASH;
bo[1] &= ~test;
return true;
}
return false;
}
}
static boolean isLetter(byte b) { return (b & 64) != 0; }
public boolean isLetterSet(int r, int c) { return isLetter(g[offset(r, c)]); }
public boolean isLetterSet(int idx) { return isLetter(g[idx]); }
@@ -436,16 +461,6 @@ public record SwedishGenerator(Rng rng) {
if (!hasSlots) return 1_000_000_000L;
int idx, h, v;
for (idx = 0; idx < SIZE; idx++) {
if (grid.isDigitAt(idx)) continue;
h = covH[idx];
v = covV[idx];
if (h == 0 && v == 0) penalty[0] += 1500;
else if (h > 0 && v > 0) { /* ok */ } else if (h + v == 1) penalty[0] += 200;
else penalty[0] += 600;
}
// clue clustering (8-connected)
var seen = ctx.seen;
seen.clear();
@@ -488,23 +503,26 @@ public record SwedishGenerator(Rng rng) {
}
if (walls >= 3) penalty[0] += 400;
}*/
int h, v;
for (var rci : IT) {
if (grid.isDigitAt(rci.i())) continue;
walls = (4 - rci.nbrCount()) + Long.bitCount(rci.n1() & grid.bo[0]) + Long.bitCount(rci.n2() & grid.bo[1]);
if (walls >= 3) penalty[0] += 400;
if ((4 - rci.nbrCount()) + Long.bitCount(rci.n1() & grid.bo[0]) + Long.bitCount(rci.n2() & grid.bo[1]) >= 3) penalty[0] += 400;
h = covH[rci.i()];
v = covV[rci.i()];
if (h == 0 && v == 0) penalty[0] += 1500;
else if (h > 0 && v > 0) { /* ok */ }
else if (h + v == 1) penalty[0] += 200;
else penalty[0] += 600;
}
return penalty[0];
}
Grid randomMask() {
var g = Grid.createEmpty();
int placed = 0, guard = 0;
while (placed < TARGET_CLUES && guard++ < 4000) {
var idx = Grid.offset(rng.randint(0, R - 1),
for (int placed = 0, guard = 0, idx; placed < TARGET_CLUES && guard < 4000; guard++) {
idx = Grid.offset(rng.randint(0, R - 1),
rng.randint(0, C - 1));
if (g.isDigitAt(idx)) continue;
if (g.isClue(idx)) continue;
var d = OFFSETS[rng.randbyte(1, 4)];
if (hasRoomForClue(g, idx, d)) {
@@ -525,9 +543,7 @@ public record SwedishGenerator(Rng rng) {
clamp(cx + (rng.randint(-2, 2) + rng.randint(-2, 2)), 0, R - 1),
clamp(cy + (rng.randint(-2, 2) + rng.randint(-2, 2)), 0, C - 1));
if (g.isDigitAt(ri)) {
g.clearClue(ri);
} else {
if (!g.clueless(ri)) {
var d = OFFSETS[rng.randint(1, 4)];
if (hasRoomForClue(g, ri, d)) g.setClue(ri, d.dbyte());
}