public override IEnumerable <int> Neighbors(Cells cells, int col, int row)
{
yield return(cells[col, cells.WrapRow(row - 1)]);
yield return(cells[cells.WrapColumn(col + 1), cells.WrapRow(row - 1)]);
yield return(cells[cells.WrapColumn(col - 1), row]);
yield return(cells[cells.WrapColumn(col + 1), row]);
yield return(cells[cells.WrapColumn(col - 1), cells.WrapRow(row + 1)]);
yield return(cells[col, cells.WrapRow(row + 1)]);
yield return(cells[cells.WrapColumn(col + 1), cells.WrapRow(row - 2)]);
yield return(cells[cells.WrapColumn(col - 1), cells.WrapRow(row - 1)]);
yield return(cells[cells.WrapColumn(col - 2), cells.WrapRow(row + 1)]);
yield return(cells[cells.WrapColumn(col - 1), cells.WrapRow(row + 2)]);
yield return(cells[cells.WrapColumn(col + 1), cells.WrapRow(row + 1)]);
yield return(cells[cells.WrapColumn(col + 2), cells.WrapRow(row - 1)]);
}
public override IEnumerable <int> Neighbors(Cells cells, int col, int row)
{
bool isRightSideUp = (col + row) % 2 == 0;
if (isRightSideUp)
{
yield return(cells[cells.WrapColumn(col - 1), row]);
yield return(cells[cells.WrapColumn(col + 1), row]);
yield return(cells[col, cells.WrapRow(row + 1)]);
}
else
{
yield return(cells[cells.WrapColumn(col - 1), row]);
yield return(cells[cells.WrapColumn(col + 1), row]);
yield return(cells[col, cells.WrapRow(row - 1)]);
}
}
public override IndexPair GetColRowFromXy(Cells cells, int x, int y)
{
float fX = x;
float fY = y;
float fColumn = (fX + (float)TriangleCellPainter.HALF_WD) / (float)TriangleCellPainter.HALF_WD_CEIL;
float fRow = fY / (float)TriangleCellPainter.CELL_HGT;
return(new IndexPair(
cells.WrapColumn((int)Math.Round(fColumn)),
cells.WrapRow((int)Math.Round(fRow))
));
}
public override IEnumerable<int> Neighbors(Cells cells, int col, int row)
{
bool isRightSideUp = (col + row) % 2 == 0;
if (isRightSideUp)
{
yield return cells[cells.WrapColumn(col - 1), cells.WrapRow(row -1)];
yield return cells[cells.WrapColumn(col), cells.WrapRow(row -1)];
yield return cells[cells.WrapColumn(col + 1), cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col - 2), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col - 2), row];
yield return cells[cells.WrapColumn(col - 1), row];
yield return cells[cells.WrapColumn(col - 1), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col + 1), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col + 2), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col + 2), row];
yield return cells[cells.WrapColumn(col + 1), row];
}
else
{
yield return cells[cells.WrapColumn(col - 1), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col + 1), cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col - 2), cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col - 2), row];
yield return cells[cells.WrapColumn(col - 1), row];
yield return cells[cells.WrapColumn(col - 1), cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col), cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col + 1), cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col + 2), cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col + 2), row];
yield return cells[cells.WrapColumn(col + 1), row];
}
}
public override IndexPair GetColRowFromXy(Cells cells, int x, int y)
{
float fX = x;
float fY = y;
float fColumn = (fX + (float)TriangleCellPainter.HALF_WD) / (float)TriangleCellPainter.HALF_WD_CEIL;
float fRow = fY / (float)TriangleCellPainter.CELL_HGT;
return new IndexPair(
cells.WrapColumn((int)Math.Round(fColumn)),
cells.WrapRow((int)Math.Round(fRow))
);
}
public override IEnumerable<int> Neighbors(Cells cells, int col, int row)
{
yield return cells[col, cells.WrapRow(row - 1)];
yield return cells[cells.WrapColumn(col + 1), row];
yield return cells[col, cells.WrapRow(row + 1)];
yield return cells[cells.WrapColumn(col - 1), row];
}
