public bool Down()
{
// If there's no block below the current one, go down
if (GameField.IsEmpty(square1.Location.X / squareSize, square1.Location.Y / squareSize + 1) && GameField.IsEmpty(square2.Location.X / squareSize, square2.Location.Y / squareSize + 1) && GameField.IsEmpty(square3.Location.X / squareSize, square3.Location.Y / squareSize + 1) && GameField.IsEmpty(square4.Location.X / squareSize, square4.Location.Y / squareSize + 1))
{
// Hide the block (in the previous position)
Hide(GameField.GraphBackground);
// Update the block position
square1.Location = new Point(square1.Location.X, square1.Location.Y + squareSize);
square2.Location = new Point(square2.Location.X, square2.Location.Y + squareSize);
square3.Location = new Point(square3.Location.X, square3.Location.Y + squareSize);
square4.Location = new Point(square4.Location.X, square4.Location.Y + squareSize);
// Draw the block in the new position
Show(GameField.GraphBackground);
return(true);
}
else
{
// If there's a block below the current one, doesn't go down
// -> put it on the array that controls the game and return FALSE
GameField.StopSquare(square1, square1.Location.X / squareSize, square1.Location.Y / squareSize);
GameField.StopSquare(square2, square2.Location.X / squareSize, square2.Location.Y / squareSize);
GameField.StopSquare(square3, square3.Location.X / squareSize, square3.Location.Y / squareSize);
GameField.StopSquare(square4, square4.Location.X / squareSize, square4.Location.Y / squareSize);
return(false);
}
}
public bool Left()
{
// If there's no block to the left of the current one, go left
if (GameField.IsEmpty(square1.Location.X / squareSize - 1, square1.Location.Y / squareSize) && GameField.IsEmpty(square2.Location.X / squareSize - 1, square2.Location.Y / squareSize) && GameField.IsEmpty(square3.Location.X / squareSize - 1, square3.Location.Y / squareSize) && GameField.IsEmpty(square4.Location.X / squareSize - 1, square4.Location.Y / squareSize))
{
// Hide the block (in the previous position)
Hide(GameField.GraphBackground);
// Update the block position
square1.Location = new Point(square1.Location.X - squareSize, square1.Location.Y);
square2.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square3.Location = new Point(square3.Location.X - squareSize, square3.Location.Y);
square4.Location = new Point(square4.Location.X - squareSize, square4.Location.Y);
// Draw the block in the new position
Show(GameField.GraphBackground);
return(true);
}
else
{
// If there's a block to the left of the current one,
// doesn't go left and return FALSE
return(false);
}
}
public void Rotate()
{
// Store the current block position
Point OldPosition1 = square1.Location;
Point OldPosition2 = square2.Location;
Point OldPosition3 = square3.Location;
Point OldPosition4 = square4.Location;
RotationDirections OldStatusRotation = StatusRotation;
Hide(GameField.GraphBackground);
// Rotate the blocks
switch (BlockType)
{
case BlockTypes.Square:
// Do nothing. Squares don't rotate.
break;
case BlockTypes.Line:
// Rotate all squares around square 2
switch (StatusRotation)
{
case RotationDirections.North:
StatusRotation = RotationDirections.East;
square1.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square3.Location = new Point(square2.Location.X + squareSize, square2.Location.Y);
square4.Location = new Point(square2.Location.X + 2 * squareSize, square2.Location.Y);
break;
case RotationDirections.East:
StatusRotation = RotationDirections.North;
square1.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
square3.Location = new Point(square2.Location.X, square2.Location.Y + squareSize);
square4.Location = new Point(square2.Location.X, square2.Location.Y + 2 * squareSize);
break;
}
break;
case BlockTypes.J:
// Rotate all squares around square 3
switch (StatusRotation)
{
case RotationDirections.North:
StatusRotation = RotationDirections.East;
square1.Location = new Point(square3.Location.X, square3.Location.Y - squareSize);
square2.Location = new Point(square3.Location.X + squareSize, square3.Location.Y);
square4.Location = new Point(square3.Location.X + 2 * squareSize, square3.Location.Y);
break;
case RotationDirections.East:
StatusRotation = RotationDirections.South;
square1.Location = new Point(square3.Location.X + squareSize, square3.Location.Y);
square2.Location = new Point(square3.Location.X, square3.Location.Y + squareSize);
square4.Location = new Point(square3.Location.X, square3.Location.Y + 2 * squareSize);
break;
case RotationDirections.South:
StatusRotation = RotationDirections.West;
square1.Location = new Point(square3.Location.X, square3.Location.Y + squareSize);
square2.Location = new Point(square3.Location.X - squareSize, square3.Location.Y);
square4.Location = new Point(square3.Location.X - 2 * squareSize, square3.Location.Y);
break;
case RotationDirections.West:
StatusRotation = RotationDirections.North;
square1.Location = new Point(square3.Location.X - squareSize, square3.Location.Y);
square2.Location = new Point(square3.Location.X, square3.Location.Y - squareSize);
square4.Location = new Point(square3.Location.X, square3.Location.Y - 2 * squareSize);
break;
}
break;
case BlockTypes.L:
// Rotate all squares around square 3
switch (StatusRotation)
{
case RotationDirections.North:
StatusRotation = RotationDirections.East;
square1.Location = new Point(square3.Location.X + squareSize, square3.Location.Y);
square2.Location = new Point(square3.Location.X + 2 * squareSize, square3.Location.Y);
square4.Location = new Point(square3.Location.X, square3.Location.Y + squareSize);
break;
case RotationDirections.East:
StatusRotation = RotationDirections.South;
square1.Location = new Point(square3.Location.X - squareSize, square3.Location.Y);
square2.Location = new Point(square3.Location.X, square3.Location.Y + squareSize);
square4.Location = new Point(square3.Location.X, square3.Location.Y + 2 * squareSize);
break;
case RotationDirections.South:
StatusRotation = RotationDirections.West;
square1.Location = new Point(square3.Location.X - 2 * squareSize, square3.Location.Y);
square2.Location = new Point(square3.Location.X - squareSize, square3.Location.Y);
square4.Location = new Point(square3.Location.X, square3.Location.Y - squareSize);
break;
case RotationDirections.West:
StatusRotation = RotationDirections.North;
square1.Location = new Point(square3.Location.X, square3.Location.Y - 2 * squareSize);
square2.Location = new Point(square3.Location.X, square3.Location.Y - squareSize);
square4.Location = new Point(square3.Location.X + squareSize, square3.Location.Y);
break;
}
break;
case BlockTypes.T:
switch (StatusRotation)
{
case RotationDirections.North:
StatusRotation = RotationDirections.East;
square1.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
square3.Location = new Point(square2.Location.X, square2.Location.Y + squareSize);
square4.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
break;
case RotationDirections.East:
StatusRotation = RotationDirections.South;
square1.Location = new Point(square2.Location.X + squareSize, square2.Location.Y);
square3.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square4.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
break;
case RotationDirections.South:
StatusRotation = RotationDirections.West;
square1.Location = new Point(square2.Location.X, square2.Location.Y + squareSize);
square3.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
square4.Location = new Point(square2.Location.X + squareSize, square2.Location.Y);
break;
case RotationDirections.West:
StatusRotation = RotationDirections.North;
square1.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square3.Location = new Point(square2.Location.X + squareSize, square2.Location.Y);
square4.Location = new Point(square2.Location.X, square2.Location.Y + squareSize);
break;
}
break;
case BlockTypes.Z:
// Rotate all squares around square 2
switch (StatusRotation)
{
case RotationDirections.North:
StatusRotation = RotationDirections.East;
square1.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
square3.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square4.Location = new Point(square2.Location.X - squareSize, square2.Location.Y + squareSize);
break;
case RotationDirections.East:
StatusRotation = RotationDirections.North;
square1.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square3.Location = new Point(square2.Location.X, square2.Location.Y + squareSize);
square4.Location = new Point(square2.Location.X + squareSize, square2.Location.Y + squareSize);
break;
}
break;
case BlockTypes.S:
// Rotate all squares around square 2
switch (StatusRotation)
{
case RotationDirections.North:
StatusRotation = RotationDirections.East;
square1.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
square3.Location = new Point(square2.Location.X + squareSize, square2.Location.Y);
square4.Location = new Point(square2.Location.X + squareSize, square2.Location.Y + squareSize);
break;
case RotationDirections.East:
StatusRotation = RotationDirections.North;
square1.Location = new Point(square2.Location.X - squareSize, square2.Location.Y);
square3.Location = new Point(square2.Location.X, square2.Location.Y - squareSize);
square4.Location = new Point(square2.Location.X + squareSize, square2.Location.Y - squareSize);
break;
}
break;
}
// After rotating the squares, test if they overlap other squares.
// If so, return to original position
if (!(GameField.IsEmpty(square1.Location.X / squareSize, square1.Location.Y / squareSize) && GameField.IsEmpty(square2.Location.X / squareSize, square2.Location.Y / squareSize) && GameField.IsEmpty(square3.Location.X / squareSize, square3.Location.Y / squareSize) && GameField.IsEmpty(square4.Location.X / squareSize, square4.Location.Y / squareSize)))
{
StatusRotation = OldStatusRotation;
square1.Location = OldPosition1;
square2.Location = OldPosition2;
square3.Location = OldPosition3;
square4.Location = OldPosition4;
}
Show(GameField.GraphBackground);
}