tour/puzzle-generator
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

introduce bitloops

Browse Source
This commit is contained in:
mike
2026-01-12 20:03:31 +01:00
parent 368473c80f
commit b3b1921414
4 changed files with 82 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
src/main/java/puzzle/Export.java
View File

@@ -3,14 +3,14 @@ package puzzle;
import lombok.Getter;
import lombok.experimental.Accessors;
import lombok.experimental.Delegate;
import puzzle.Export.Gridded;
import puzzle.SwedishGenerator.Dict;
import puzzle.SwedishGenerator.FillResult;
import puzzle.SwedishGenerator.Grid;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.StringJoiner;
import java.util.function.IntSupplier;
import java.util.stream.IntStream;
import static puzzle.SwedishGenerator.R;
import static puzzle.SwedishGenerator.Lemma;
import static puzzle.SwedishGenerator.Slot;
@@ -38,6 +38,55 @@ public record Export() {
record Gridded(@Delegate Grid grid) {
static boolean isLetter(byte b) { return (b & SwedishGenerator.B64) != SwedishGenerator.B0; }
public static IntStream walk(byte base, long lo, long hi) {
if (Slot.increasing(base)) {
return IntStream.concat(
IntStream.generate(new IntSupplier() {
long temp = lo;
@Override
public int getAsInt() {
int res = Long.numberOfTrailingZeros(temp);
temp &= temp - 1;
return res;
}
}).limit(Long.bitCount(lo)),
IntStream.generate(new IntSupplier() {
long temp = hi;
@Override
public int getAsInt() {
int res = 64 | Long.numberOfTrailingZeros(temp);
temp &= temp - 1;
return res;
}
}).limit(Long.bitCount(hi)));
} else {
return IntStream.concat(
IntStream.generate(new IntSupplier() {
long temp = hi;
@Override
public int getAsInt() {
int msb = 63 - Long.numberOfLeadingZeros(temp);
int res = 64 | msb;
temp &= ~(1L << msb);
return res;
}
}).limit(Long.bitCount(hi)),
IntStream.generate(new IntSupplier() {
long temp = lo;
@Override
public int getAsInt() {
int msb = 63 - Long.numberOfLeadingZeros(temp);
int res = msb;
temp &= ~(1L << msb);
return res;
}
}).limit(Long.bitCount(lo)));
}
}
//public boolean isLetterSet(int idx) { return isLetter(g[idx]); }
char NOT_CLUE_NOT_LETTER_TO(byte b, char fallback) { return isLetter(b) ? (char) b : fallback; }
String gridToString() {
@@ -123,8 +172,7 @@ public record Export() {
Placed extractPlacedFromSlot(Slot s, long lemma) {
var d = s.dir();
var cells = new int[s.len()];
for (int i = 0, len = s.len(); i < len; i++) cells[i] = s.pos(i);
var cells = s.walk().toArray();
char direction;
var startRow = Grid.r(cells[0]);