/// <summary>
/// Checks to see if the Current Falling Block Can Rotate the Block Left
/// </summary>
/// <returns>True, it did rotate. False, if it didn't</returns>
private bool CheckRotateLeft()
{
//Flag if the Block needs to be Updated after rotating back
bool updateBlock = false;
//If the Block is hitting blocks then rotate it back Right (CW)
foreach (var item in BlockThatsFalling.BlockCells)
{
if (_cells[item.CellLocationX, item.CellLocationY].Filled == true)
{
BlockThatsFalling.RotateRight();
updateBlock = true;
break;
}
}
if (updateBlock)
{
//Updates the block CellLocation Y
foreach (var item in BlockThatsFalling.BlockCells)
{
if (_cells[item.CellLocationX, item.CellLocationY].Filled == true)
{
foreach (var cell in BlockThatsFalling.BlockCells)
{
cell.CellLocationY++;
}
break;
}
}
return(false);
}
return(true);
}
/// <summary>
/// Checks to see if the Current Falling Block Can Rotate the Block Right
/// </summary>
/// <returns>True, it did rotate. False, if it didn't</returns>
private bool CheckRotateRight()
{
//If the Block is hitting blocks then rotate it back Left (CCW)
foreach (var item in BlockThatsFalling.BlockCells)
{
if (_cells[item.CellLocationX, item.CellLocationY].Filled == true)
{
BlockThatsFalling.RotateLeft();
return(false);
}
}
return(true);
}
/// <summary>
/// Moves the Falling Block based on the Key Pressed
/// </summary>
/// <param name="keyPressed">The Key that was pressed on the KeyBoard</param>
public void MovePiece(Keys keyPressed)
{
List <Cells> oldCells = null;
try
{
//Tell the game that we are starting to move the Piece and it should surpress any and all Key Events
StartedMoving?.Invoke();
//No need if the space bar is pressed.
if (keyPressed != Keys.Space)
{
oldCells = GetOldCellsData();
}
switch (keyPressed)
{
case Keys.Right:
if (CheckRightSideForBlocks())
{
BlockThatsFalling.MoveRight();
}
break;
case Keys.Left:
if (CheckLeftSideForBlocksAndWalls())
{
BlockThatsFalling.MoveLeft();
}
break;
case Keys.Up:
if (IsItOkayToMove())
{
BlockThatsFalling.RotateRight();
CheckRotateRight();
}
break;
case Keys.Down:
if (IsItOkayToMove())
{
BlockThatsFalling.RotateLeft();
CheckRotateLeft();
}
break;
case Keys.Space:
if (BlockThatsFalling.IsItFalling)
{
DropBlockToTheBottom();
}
break;
case Keys.V:
MoveFallingBlock();
break;
case Keys.C:
if (_allowBlockToBeHeld)
{
_allowBlockToBeHeld = false;
HoldFallingBlock();
}
break;
default:
break;
}
}
finally
{
if (keyPressed != Keys.Space)
{
DrawOutTheBlocks(oldCells);
}
//Signal the game that the piece is done moving
DoneMoving?.Invoke();
}
}
