/// <summary>
/// this functions checks if the white corners are in the right place
/// </summary>
/// <returns>true or false</returns>
public Boolean WhiteCornersSolved()
{
Corner front_left_corner = new Corner(Color.White, Color.Hidden, Color.Green, Color.Hidden, Color.Purple, Color.Hidden);
Corner front_right_corner = new Corner(Color.White, Color.Hidden, Color.Green, Color.Hidden, Color.Hidden, Color.Red);
Corner back_right_corner = new Corner(Color.White, Color.Hidden, Color.Hidden, Color.Blue, Color.Hidden, Color.Red);
Corner back_left_corner = new Corner(Color.White, Color.Hidden, Color.Hidden, Color.Blue, Color.Purple, Color.Hidden);
return(front_left_corner.Equals(cube.GetBlock(0, 2, 0)) &&
front_right_corner.Equals(cube.GetBlock(2, 2, 0)) &&
back_right_corner.Equals(cube.GetBlock(2, 2, 2)) &&
back_left_corner.Equals(cube.GetBlock(0, 2, 2)));
}
/// <summary>
/// this function will solve the white corners and not stop until done
/// </summary>
public void SolveWhiteCorners()
{
//blocks that represent the corners in their proper positions
Corner front_left_corner_in_prop_pos = new Corner(Color.White, Color.Hidden, Color.Green, Color.Hidden, Color.Purple, Color.Hidden);
Corner front_right_corner_in_prop_pos = new Corner(Color.White, Color.Hidden, Color.Green, Color.Hidden, Color.Hidden, Color.Red);
Corner back_right_corner_in_prop_pos = new Corner(Color.White, Color.Hidden, Color.Hidden, Color.Blue, Color.Hidden, Color.Red);
Corner back_left_corner_in_prop_pos = new Corner(Color.White, Color.Hidden, Color.Hidden, Color.Blue, Color.Purple, Color.Hidden);
//get the corner block that has a green, white and Purple side
Corner front_left_corner = (Corner)cube.GetBlock(Color.Purple, false, cube.GetBlock(Color.Green, false, cube.GetBlock(Color.White, false)))[0];
Corner front_right_corner = (Corner)cube.GetBlock(Color.Red, false, cube.GetBlock(Color.Green, false, cube.GetBlock(Color.White, false)))[0];
Corner back_right_corner = (Corner)cube.GetBlock(Color.Red, false, cube.GetBlock(Color.Blue, false, cube.GetBlock(Color.White, false)))[0];
Corner back_left_corner = (Corner)cube.GetBlock(Color.Purple, false, cube.GetBlock(Color.Blue, false, cube.GetBlock(Color.White, false)))[0];
int max_sequence_applications = 5;
int max_rotations = 4;
Boolean corner_in_bottom_layer = true;
while (!WhiteCornersSolved())
{
//if the front left corner peice isn't in the proper position
if (!front_left_corner_in_prop_pos.Equals(front_left_corner))
{
//if the front left corner piece is in the correct position, but oriented incorrecly
//then perform this step's rotation algorithm
if (front_left_corner.Equals(cube.GetBlock(0, 2, 0)))
{
CornersRotation(Color.Purple);
}
corner_in_bottom_layer = true;
//while the front left corner isn't directly underneith where it's supposed to be
//then cube.Rotate it until it is, will stop if doesn't find after 4 rotations
while (!front_left_corner.Equals(cube.GetBlock(0, 0, 0)) && (max_rotations-- > 0))
{
cube.Rotate(Color.Yellow, Direction.Clockwise);
//if you have cube.Rotated the yellow face four times, and the corner still isn't where
//it's supposed to be
if (max_rotations == 0)
{
corner_in_bottom_layer = false;
}
}
//reset max_rotations
max_rotations = 4;
//if corner not in the correct position, figure out where it is, and put it in the bottom layer.
if (!corner_in_bottom_layer)
{
if (front_left_corner.Equals(cube.GetBlock(2, 2, 0)))
{
PutCornerInBottomLayer(Color.Green);
}
else if (front_left_corner.Equals(cube.GetBlock(2, 2, 2)))
{
PutCornerInBottomLayer(Color.Red);
}
else if (front_left_corner.Equals(cube.GetBlock(0, 2, 2)))
{
PutCornerInBottomLayer(Color.Blue);
}
continue;
}
else
{
//while the corner piece isn't in the correct position, and while the max number of times
//the rotation algorithm (5 times) isn't exceeded: perfrom this step's rotation algorithm
while (!front_left_corner_in_prop_pos.Equals(front_left_corner) && (max_sequence_applications-- > 0))
{
CornersRotation(Color.Purple);
max_sequence_applications = 5;
}
}
}
if (!front_right_corner_in_prop_pos.Equals(front_right_corner))
{
if (front_right_corner.Equals(cube.GetBlock(2, 2, 0)))
{
CornersRotation(Color.Green);
}
corner_in_bottom_layer = true;
while (!front_right_corner.Equals(cube.GetBlock(2, 0, 0)) && (max_rotations-- > 0))
{
cube.Rotate(Color.Yellow, Direction.Clockwise);
if (max_rotations == 0)
{
corner_in_bottom_layer = false;
}
}
max_rotations = 4;
if (!corner_in_bottom_layer)
{
if (front_right_corner.Equals(cube.GetBlock(0, 2, 0)))
{
PutCornerInBottomLayer(Color.Purple);
}
else if (front_right_corner.Equals(cube.GetBlock(2, 2, 2)))
{
PutCornerInBottomLayer(Color.Red);
}
else if (front_right_corner.Equals(cube.GetBlock(0, 2, 2)))
{
PutCornerInBottomLayer(Color.Blue);
}
continue;
}
else
{
while (!front_right_corner_in_prop_pos.Equals(front_right_corner) && (max_sequence_applications-- > 0))
{
CornersRotation(Color.Green);
max_sequence_applications = 5;
}
}
}
if (!back_right_corner_in_prop_pos.Equals(back_right_corner))
{
if (back_right_corner.Equals(cube.GetBlock(2, 2, 2)))
{
CornersRotation(Color.Red);
}
corner_in_bottom_layer = true;
while (!back_right_corner.Equals(cube.GetBlock(2, 0, 2)) && (max_rotations-- > 0))
{
cube.Rotate(Color.Yellow, Direction.Clockwise);
if (max_rotations == 0)
{
corner_in_bottom_layer = false;
}
}
max_rotations = 4;
if (!corner_in_bottom_layer)
{
if (back_right_corner.Equals(cube.GetBlock(2, 2, 0)))
{
PutCornerInBottomLayer(Color.Green);
}
else if (back_right_corner.Equals(cube.GetBlock(0, 2, 0)))
{
PutCornerInBottomLayer(Color.Purple);
}
else if (back_right_corner.Equals(cube.GetBlock(0, 2, 2)))
{
PutCornerInBottomLayer(Color.Blue);
}
continue;
}
else
{
while (!back_right_corner_in_prop_pos.Equals(back_right_corner) && (max_sequence_applications-- > 0))
{
CornersRotation(Color.Red);
max_sequence_applications = 5;
}
}
}
if (!back_left_corner_in_prop_pos.Equals(back_left_corner))
{
if (back_left_corner.Equals(cube.GetBlock(0, 2, 2)))
{
CornersRotation(Color.Blue);
}
corner_in_bottom_layer = true;
while (!back_left_corner.Equals(cube.GetBlock(0, 0, 2)) && (max_rotations-- > 0))
{
cube.Rotate(Color.Yellow, Direction.Clockwise);
if (max_rotations == 0)
{
corner_in_bottom_layer = false;
}
}
max_rotations = 4;
if (!corner_in_bottom_layer)
{
if (back_left_corner.Equals(cube.GetBlock(2, 2, 0)))
{
PutCornerInBottomLayer(Color.Green);
}
else if (back_left_corner.Equals(cube.GetBlock(2, 2, 2)))
{
PutCornerInBottomLayer(Color.Red);
}
else if (back_left_corner.Equals(cube.GetBlock(0, 2, 0)))
{
PutCornerInBottomLayer(Color.Purple);
}
continue;
}
else
{
while (!back_left_corner_in_prop_pos.Equals(back_left_corner) && (max_sequence_applications-- > 0))
{
CornersRotation(Color.Blue);
max_sequence_applications = 5;
}
}
}
}
}