/// <summary>
/// for the turns, the sides are rotated to the front
/// the y-axis points upwards, the x-axis to the right and the z-axis backwards
/// for the left side, the cube is turned 90 degrees counterclockwise around the y-axis
/// for the right side, the cube is turned 90 degrees clockwise around the y-axis
/// for the top side, the cube is turned 90 degrees counterclockwise around the x-axis
/// for the bottom side, the cube is turned 90 degrees clockwise around the x-axis
/// for the back side, the cube is turned 180 degrees around the y-axis
///
/// the notations in the method are marked according to this page:
/// https://rubiks.com/uploads/general_content/Rubiks_cube_3x3_solution-en.pdf
///
/// the rotations need to run in separate threads, because otherwise they would run in the UI thread
/// but because the events have to await until the storyboard finished, the rotation method's execution continues
/// so basically there is no way to wait until the rotation is finished in the UI for the rest of the methods to continue
/// therefore they have to run in a second thread, so that the event also runs in a second thread
/// the event handler can then synchronously wait for a task executed with the dispatcher to finish
/// </summary>
/// <summary>
/// F
/// </summary>
public void RotateFrontCW(bool raiseEvents = true)
{
if (raiseEvents)
{
raiseBeforeFrontCWRotation();
}
var tempRow = top.GetRow(2);
top.SetRow(2, left.GetColumn(2).Reverse().ToArray());
left.SetColumn(2, bottom.GetRow(0));
bottom.SetRow(0, right.GetColumn(0).Reverse().ToArray());
right.SetColumn(0, tempRow);
front.RotateCW();
raiseAfterFrontCWRotation();
}
/// <summary>
/// L
/// </summary>
public void RotateLeftCW(bool raiseEvents = true)
{
if (raiseEvents)
{
raiseBeforeLeftCWRotation();
}
var tempColumn = top.GetColumn(0);
top.SetColumn(0, back.GetColumn(2).Reverse().ToArray());
back.SetColumn(2, bottom.GetColumn(0).Reverse().ToArray());
bottom.SetColumn(0, front.GetColumn(0));
front.SetColumn(0, tempColumn);
left.RotateCW();
if (raiseEvents)
{
raiseAfterLeftCWRotation();
}
}
public Brush GetSecondaryEdgeColor(RelativeEdgePosition edgePosition)
{
//these 2 (top, bottom) sides are special cases, because they change the column/row alignment with other sides
if (CubeSide == Sides.Top)
{
switch (edgePosition)
{
case RelativeEdgePosition.Left:
return(left.GetRow(0)[1]);
case RelativeEdgePosition.Right:
return(right.GetRow(0)[1]);
case RelativeEdgePosition.Top:
return(top.GetRow(0)[1]);
case RelativeEdgePosition.Bottom:
return(bottom.GetRow(0)[1]);
}
}
if (CubeSide == Sides.Bottom)
{
switch (edgePosition)
{
case RelativeEdgePosition.Left:
return(left.GetRow(2)[1]);
case RelativeEdgePosition.Right:
return(right.GetRow(2)[1]);
case RelativeEdgePosition.Top:
return(top.GetRow(2)[1]);
case RelativeEdgePosition.Bottom:
return(bottom.GetRow(2)[1]);
}
}
else
{
if (edgePosition == RelativeEdgePosition.Left)
{
return(left.GetColumn(2)[1]);
}
if (edgePosition == RelativeEdgePosition.Right)
{
return(right.GetColumn(0)[1]);
}
if (edgePosition == RelativeEdgePosition.Top)
{
//only has to handle the remaining 4 cases (top and bottom are handled before)
switch (CubeSide)
{
case Sides.Front:
return(top.GetRow(2)[1]);
case Sides.Left:
return(top.GetColumn(0)[1]);
case Sides.Back:
return(top.GetRow(0)[1]);
case Sides.Right:
return(top.GetColumn(2)[1]);
}
}
if (edgePosition == RelativeEdgePosition.Bottom)
{
//only has to handle the remaining 4 cases (top and bottom are handled before)
switch (CubeSide)
{
case Sides.Front:
return(bottom.GetRow(0)[1]);
case Sides.Left:
return(bottom.GetColumn(0)[1]);
case Sides.Back:
return(bottom.GetRow(2)[1]);
case Sides.Right:
return(bottom.GetColumn(2)[1]);
}
}
}
return(null); //default case to satisfy the compiler, should never occur
}