/// <summary>
/// Paint function to draw the grid
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void panGrid_Paint(object sender, PaintEventArgs e)
{
Graphics gr = e.Graphics;
for (int r = 1; r < mFieldGrid.Rows; r++)
{
gr.DrawLine(SystemPens.GrayText, 0, r * mSquareSizeY, panGrid.Width, r * mSquareSizeY);
}
for (int c = 1; c < mFieldGrid.Cols; c++)
{
gr.DrawLine(SystemPens.GrayText, c * mSquareSizeX, 0, c * mSquareSizeX, panGrid.Height);
}
for (int r = 0; r < mFieldGrid.Rows; r++)
{
for (int c = 0; c < mFieldGrid.Cols; c++)
{
if (mFieldGrid.GetCell(r, c) == FieldElement.Wall)
{
gr.FillRectangle(Brushes.Gray, c * mSquareSizeX, r * mSquareSizeY,
mSquareSizeX, mSquareSizeY);
}
else if (mFieldGrid.GetCell(r, c) == FieldElement.Start)
{
gr.FillRectangle(Brushes.Green, c * mSquareSizeX, r * mSquareSizeY,
mSquareSizeX, mSquareSizeY);
}
else if (mFieldGrid.GetCell(r, c) == FieldElement.Finish)
{
gr.FillRectangle(Brushes.Red, c * mSquareSizeX, r * mSquareSizeY,
mSquareSizeX, mSquareSizeY);
}
}
}
if (mSolver != null)
{
if (mSolver.GetSortedSolutions().Count > 0)
{
foreach (FieldCoord coord in mSolver.GetSortedSolutions()[0])
{
if (mFieldGrid.GetCell(coord.Row, coord.Col) == FieldElement.Empty)
{
gr.FillRectangle(Brushes.Yellow, coord.Col * mSquareSizeX, coord.Row * mSquareSizeY,
mSquareSizeX, mSquareSizeY);
}
}
}
}
}
/// <summary>
/// Find the coordinates of a specific FieldElement element
/// </summary>
/// <param name="element">The element to be found</param>
/// <returns>The coordinates of the element found of null if it is not found</returns>
private FieldCoord FindFieldElement(FieldElement element)
{
for (int r = 0; r < mGrid.Rows; r++)
{
for (int c = 0; c < mGrid.Cols; c++)
{
if (mGrid.GetCell(r, c) == element)
{
return(new FieldCoord(r, c));
}
}
}
return(null);
}
