///////////////////// Virtual move function ////////////////////////////
private bool[,] CreateAstarMap()
{
bool[,] mp = new bool[MapPtr.RowCount, MapPtr.ColCount];
Cell tail = this.GetTail();
for (int row = 0; row < MapPtr.RowCount; row++)
{
for (int col = 0; col < MapPtr.ColCount; col++)
{
Cell cell = MapPtr.GetCell(row, col);
// the Tail is can PASSED!
mp[row, col] = IsMovedCellValid(cell);
}
}
return(mp);
}
public string PrintAllCells()
{
StringBuilder sb = new StringBuilder();
sb.Append("\r\n");
for (int row = 0; row < MapPtr.RowCount; row++)
{
for (int col = 0; col < MapPtr.ColCount; col++)
{
Cell cell = MapPtr.GetCell(row, col);
if (InBody(cell))
{
if (cell.IsSamePostion(GetHead()))
{
sb.Append(" @");
}
else if (cell.IsSamePostion(GetTail()))
{
sb.Append(" o");
}
else
{
sb.Append(" #");
}
}
else if (cell.IsFood())
{
sb.Append(" F");
}
else if (cell.IsHinder())
{
sb.Append(" H");
}
else
{
sb.Append(" _");
}
}
sb.Append("\r\n");
}
Console.Write(sb.ToString());
return(sb.ToString());
}
public List <Cell> GetMovableCells(int row, int col)
{
List <Cell> cells = new List <Cell>();
// left
Cell left = MapPtr.GetCell(row, col - 1);
if (IsMovedCellValid(left))
{
cells.Add(left);
}
// right
Cell right = MapPtr.GetCell(row, col + 1);
if (IsMovedCellValid(right))
{
cells.Add(right);
}
// up
Cell up = MapPtr.GetCell(row - 1, col);
if (IsMovedCellValid(up))
{
cells.Add(up);
}
// down
Cell down = MapPtr.GetCell(row + 1, col);
if (IsMovedCellValid(down))
{
cells.Add(down);
}
return(cells);
}
private Cell Point2MapCell(Point pt)
{
return(MapPtr.GetCell(pt.X, pt.Y));
}
public List <Cell> GetGoalMovableCells(Cell cur, Cell goal)
{
List <Cell> cells = new List <Cell>();
Cell left, right, up, down;
int cntLeft = 0;
int cntRight = 0;
int cntUp = 0;
int cntDown = 0;
int step = 5;
int disLeft = int.MaxValue;
int disRight = int.MaxValue;
int disUp = int.MaxValue;
int disDown = int.MaxValue;
// left
left = MapPtr.GetCell(cur.Row, cur.Col - 1);
if (IsMovedCellValid(left))
{
cntLeft = GetMovableCellsCountStep(left.Row, left.Col, step);
disLeft = GetCellsDistance(left, goal);
}
// right
right = MapPtr.GetCell(cur.Row, cur.Col + 1);
if (IsMovedCellValid(right))
{
cntRight = GetMovableCellsCountStep(right.Row, right.Col, step);
disRight = GetCellsDistance(right, goal);
}
// up
up = MapPtr.GetCell(cur.Row - 1, cur.Col);
if (IsMovedCellValid(up))
{
cntUp = GetMovableCellsCountStep(up.Row, up.Col, step);
disUp = GetCellsDistance(up, goal);
}
// down
down = MapPtr.GetCell(cur.Row + 1, cur.Col);
if (IsMovedCellValid(down))
{
cntDown = GetMovableCellsCountStep(down.Row, down.Col, step);
disDown = GetCellsDistance(down, goal);
}
int nMax = Math.Max(cntLeft, cntRight);
nMax = Math.Max(nMax, cntUp);
nMax = Math.Max(nMax, cntDown);
if (nMax == 0)
{
return(cells);
}
int nMin = Math.Min(disLeft, disRight);
nMin = Math.Min(nMin, disUp);
nMin = Math.Min(nMin, disDown);
if (disLeft == nMin && cntLeft == nMax)
{
cells.Add(left);
}
if (disRight == nMin && cntRight == nMax)
{
cells.Add(right);
}
if (disUp == nMin && cntUp == nMax)
{
cells.Add(up);
}
if (disDown == nMin && cntDown == nMax)
{
cells.Add(down);
}
if (cells.Count == 0)
{
if (disLeft == nMin)
{
cells.Add(left);
}
if (disRight == nMin)
{
cells.Add(right);
}
if (disUp == nMin)
{
cells.Add(up);
}
if (disDown == nMin)
{
cells.Add(down);
}
}
if (cells.Count == 0)
{
if (cntLeft == nMax)
{
cells.Add(left);
}
if (cntRight == nMax)
{
cells.Add(right);
}
if (cntUp == nMax)
{
cells.Add(up);
}
if (cntDown == nMax)
{
cells.Add(down);
}
}
return(cells);
}
public List <Cell> GetWidelyMovableCells(int row, int col)
{
List <Cell> cells = new List <Cell>();
Cell left, right, up, down;
int cntLeft = 0;
int cntRight = 0;
int cntUp = 0;
int cntDown = 0;
int step = 5;
// left
left = MapPtr.GetCell(row, col - 1);
if (IsMovedCellValid(left))
{
cntLeft = GetMovableCellsCountStep(left.Row, left.Col, step);
}
// right
right = MapPtr.GetCell(row, col + 1);
if (IsMovedCellValid(right))
{
cntRight = GetMovableCellsCountStep(right.Row, right.Col, step);
}
// up
up = MapPtr.GetCell(row - 1, col);
if (IsMovedCellValid(up))
{
cntUp = GetMovableCellsCountStep(up.Row, up.Col, step);
}
// down
down = MapPtr.GetCell(row + 1, col);
if (IsMovedCellValid(down))
{
cntDown = GetMovableCellsCountStep(down.Row, down.Col, step);
}
int nMax = Math.Max(cntLeft, cntRight);
nMax = Math.Max(nMax, cntUp);
nMax = Math.Max(nMax, cntDown);
if (cntLeft == nMax)
{
cells.Add(left);
}
if (cntRight == nMax)
{
cells.Add(right);
}
if (cntUp == nMax)
{
cells.Add(up);
}
if (cntDown == nMax)
{
cells.Add(down);
}
return(cells);
}