Haiku/haiku
Haiku/haiku
1
0
Fork 0
mirror of https://review.haiku-os.org/haiku synced 2025-02-22 21:48:35 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Sudoku: remove hints when setting a value.

Browse Source 
* When you set a value, all then superfluous hints are removed
  automatically now.
This commit is contained in:
Axel Dörfler 2015-01-08 17:44:20 +01:00
parent fc64ef86ff
commit e3debc9e26
2 changed files with 44 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
src/apps/sudoku/SudokuView.cpp
View File

@ -1130,6 +1130,8 @@ SudokuView::_ToggleValue(uint32 x, uint32 y, uint32 value, uint32 field)
fField->SetValueAt(x, y, value + 1);
BMessenger(this).SendMessage(kMsgCheckSolved);
_RemoveHintValues(x, y, value);
// allow dragging to remove the hint from other fields
fLastHintValueSet = false;
fLastHintValue = value;
@ -1172,6 +1174,44 @@ SudokuView::_ToggleHintValue(uint32 x, uint32 y, uint32 hintX, uint32 hintY,
}
void
SudokuView::_RemoveHintValues(uint32 atX, uint32 atY, uint32 value)
{
// Remove all hints in the same block
uint32 blockSize = fField->BlockSize();
uint32 blockX = (atX / blockSize) * blockSize;
uint32 blockY = (atY / blockSize) * blockSize;
uint32 valueMask = 1UL << value;
for (uint32 y = blockY; y < blockY + blockSize; y++) {
for (uint32 x = blockX; x < blockX + blockSize; x++) {
if (x != atX && y != atY)
_RemoveHintValue(x, y, valueMask);
}
}
// Remove all hints from the vertical and horizontal lines
for (uint32 i = 0; i < fField->Size(); i++) {
if (i != atX)
_RemoveHintValue(i, atY, valueMask);
if (i != atY)
_RemoveHintValue(atX, i, valueMask);
}
}
void
SudokuView::_RemoveHintValue(uint32 x, uint32 y, uint32 valueMask)
{
uint32 hintMask = fField->HintMaskAt(x, y);
if ((hintMask & valueMask) != 0) {
fField->SetHintMaskAt(x, y, hintMask & ~valueMask);
_InvalidateField(x, y);
}
}
void
SudokuView::_SetAllHints()
{

4
src/apps/sudoku/SudokuView.h
View File

@ -111,6 +111,10 @@ private:
void _ToggleHintValue(uint32 x, uint32 y,
uint32 hintX, uint32 hintY,
uint32 value, uint32 field);
void _RemoveHintValues(uint32 atX, uint32 atY,
uint32 value);
void _RemoveHintValue(uint32 x, uint32 y,
uint32 valueMask);
void _SetAllHints();
void _Solve();
void _SolveSingle();