/// <param name="skipIndex">line index to skip</param>
public static IEnumerable <Definition.Element> GetElementsInOtherGridLine(this Definition.Grid sourceGrid, int skipIndex, Definition.LineType lineType)
{
IEnumerable <Definition.GridLine> lines;
switch (lineType)
{
case Definition.LineType.Row:
lines = sourceGrid.Rows;
break;
case Definition.LineType.Column:
lines = sourceGrid.Columns;
break;
default: throw new NotImplementedException();
}
foreach (var line in lines)
{
if (line.Index != skipIndex)
{
foreach (var element in line.Elements)
{
yield return(element);
}
}
}
}
/// <summary>
/// get adjacent grid by direction
/// </summary>
/// <remarks>
/// 0 1 2
/// 3 4 5
/// 6 7 8
/// </remarks>
private static bool TryGetAdjacentGrid(this Definition.Grid sourceGrid, GridAdjacentDirection direction, out Definition.Grid grid)
{
int index = sourceGrid.Index;
int targetIndex = -1;
switch (direction)
{
case GridAdjacentDirection.Up:
{
targetIndex = index - 3;
}
break;
case GridAdjacentDirection.Down:
{
targetIndex = index + 3;
}
break;
case GridAdjacentDirection.Left:
{
if (index % 3 > 0)
{
targetIndex = index - 1;
}
}
break;
case GridAdjacentDirection.Right:
{
if (index % 3 < 2)
{
targetIndex = index + 1;
}
}
break;
default: throw new NotImplementedException();
}
if (targetIndex < 0)
{
grid = null;
return(false);
}
else
{
grid = sourceGrid.Sudoku.Grids[targetIndex];
return(true);
}
}
public static IEnumerable <Definition.Element> GetElementsInCurrentGridLine(this Definition.Grid sourceGrid, int layerIndex, Definition.LineType lineType)
{
IEnumerable <Definition.GridLine> lines;
switch (lineType)
{
case Definition.LineType.Row:
lines = sourceGrid.Rows;
break;
case Definition.LineType.Column:
lines = sourceGrid.Columns;
break;
default: throw new NotImplementedException();
}
return(lines.Skip(layerIndex).First().Elements);
}
private void printGrid(Definition.Grid grid, int gridIndex, int currentCursorTop)
{
if (grid == null)
{
throw new ArgumentNullException("grid");
}
int cursorPosH = gridIndex % 3 * 10;
int cursorPosV = gridIndex / 3 * 4 + currentCursorTop;
bool firstColumn = gridIndex % 3 == 0;
bool lastColumn = gridIndex % 3 == 2;
bool firstRow = gridIndex < 3;
bool lastRow = gridIndex > 5;
if (lastColumn)
{
cursorPosH--;
}
if (firstRow)
{
Console.SetCursorPosition(lastColumn ? cursorPosH - 1 : cursorPosH, cursorPosV + 0);
if (firstColumn)
{
Console.Write(grid_left_top);
}
for (int i = 0; i < 3; i++)
{
Console.Write(grid_horizontal);
}
Console.Write(lastColumn ? grid_right_top : grid_top_cross);
}
Console.SetCursorPosition(cursorPosH, cursorPosV + 1);
if (firstColumn)
{
Console.Write(grid_vertical);
}
if (!lastColumn)
{
Console.Write(whitespace);
}
Console.Write(grid.Row1);
Console.Write(grid_vertical);
Console.SetCursorPosition(cursorPosH, cursorPosV + 2);
if (firstColumn)
{
Console.Write(grid_vertical);
}
if (!lastColumn)
{
Console.Write(whitespace);
}
Console.Write(grid.Row2);
Console.Write(grid_vertical);
Console.SetCursorPosition(cursorPosH, cursorPosV + 3);
if (firstColumn)
{
Console.Write(grid_vertical);
}
if (!lastColumn)
{
Console.Write(whitespace);
}
Console.Write(grid.Row3);
Console.Write(grid_vertical);
Console.SetCursorPosition(lastColumn ? cursorPosH - 1 : cursorPosH, cursorPosV + 4);
if (firstColumn)
{
Console.Write(lastRow ? grid_left_bottom : grid_left_cross);
}
for (int i = 0; i < 3; i++)
{
Console.Write(grid_horizontal);
}
Console.Write(lastColumn ?
(lastRow ? grid_right_bottom : grid_right_cross) :
(lastRow ? grid_bottom_cross : grid_cross));
}
public static void GetOtherGrids(this Definition.Grid sourceGrid, Definition.LineType gridLineType, out Definition.Grid otherGrid1, out Definition.Grid otherGrid2)
{
int currentLayer = GetLayerWithOppositeLineType(sourceGrid.Index, gridLineType);
switch (gridLineType)
{
case Definition.LineType.Row:
{
switch (currentLayer)
{
case 0:
{
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Right, out otherGrid1);
otherGrid1.TryGetAdjacentGrid(GridAdjacentDirection.Right, out otherGrid2);
}
break;
case 1:
{
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Left, out otherGrid1);
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Right, out otherGrid2);
}
break;
case 2:
{
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Left, out otherGrid2);
otherGrid2.TryGetAdjacentGrid(GridAdjacentDirection.Left, out otherGrid1);
}
break;
default: throw new NotImplementedException();
}
}
break;
case Definition.LineType.Column:
{
switch (currentLayer)
{
case 0:
{
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Down, out otherGrid1);
otherGrid1.TryGetAdjacentGrid(GridAdjacentDirection.Down, out otherGrid2);
}
break;
case 1:
{
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Up, out otherGrid1);
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Down, out otherGrid2);
}
break;
case 2:
{
sourceGrid.TryGetAdjacentGrid(GridAdjacentDirection.Up, out otherGrid2);
otherGrid2.TryGetAdjacentGrid(GridAdjacentDirection.Up, out otherGrid1);
}
break;
default: throw new NotImplementedException();
}
}
break;
default: throw new NotImplementedException();
}
}
