private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Escape)
{
Application.Exit();
}
else if (currPos != null)
{
int x = currPos.x;
int y = currPos.y;
if (e.KeyCode == Keys.R)
{
//Create a previously searched array
bool[,] alreadySearched = new bool[numOfBlocks, numOfBlocks];
//Starts the recursive solver at tile (0,0). If false maze can not be solved.
if (!solveMazeRecursion(0, 0, alreadySearched))
{
MessageBox.Show("Maze can not be solved.");
}
clearRec = true;
}
else if (e.KeyCode == Keys.A)
{
aStar();
clearRec = true;
}
else if (e.KeyCode == Keys.C)
{
clearGrid();
ShowGrid();
}
else if (e.KeyCode == Keys.Up)
{
if (!currPos.walls[0])
{
currPos.resetBackColor();
currPos.show();
currPos.LineVisited();
currPos.BackColor(x, --y);
currPos = grid[x, y];
}
}
else if (e.KeyCode == Keys.Left)
{
if (!currPos.walls[1])
{
currPos.resetBackColor();
currPos.show();
currPos.LineVisited();
currPos.BackColor(--x, y);
currPos = grid[x, y];
}
}
else if (e.KeyCode == Keys.Down)
{
if (!currPos.walls[2])
{
currPos.resetBackColor();
currPos.show();
currPos.LineVisited();
currPos.BackColor(x, ++y);
currPos = grid[x, y];
}
}
else if (e.KeyCode == Keys.Right)
{
if (!currPos.walls[3])
{
currPos.resetBackColor();
currPos.show();
currPos.LineVisited();
currPos.BackColor(++x, y);
currPos = grid[x, y];
}
}
}
}