// action methods
private void DoActionSetToTop()
{
Debug.Assert(this.State == TetrisState.AtTop);
// create new tetrimino
this.curr = this.AttachTetrimino();
if (this.curr.CanSetToTop())
{
this.curr.SetToTop();
this.State = TetrisState.Normal;
}
else
{
this.State = TetrisState.GameOver;
}
}
// tetrimino management
private ITetrimino AttachTetrimino()
{
// choose tetrimino by random
int which = this.random.Next() % MaxTetriminos;
// or do not :-) choose tetrimino by random (just for testing)
which = this.testTetriCounter++;
if (which % MaxTetriminos == 0)
{
this.curr = new Tetrimino_I(this.board);
}
else if (which % MaxTetriminos == 1)
{
this.curr = new Tetrimino_J(this.board);
}
else if (which % MaxTetriminos == 2)
{
this.curr = new Tetrimino_L(this.board);
}
else if (which % MaxTetriminos == 3)
{
this.curr = new Tetrimino_O(this.board);
}
else if (which % MaxTetriminos == 4)
{
this.curr = new Tetrimino_S(this.board);
}
else if (which % MaxTetriminos == 5)
{
this.curr = new Tetrimino_T(this.board);
}
else if (which % MaxTetriminos == 6)
{
this.curr = new Tetrimino_Z(this.board);
}
return(this.curr);
}
private void DetachTetrimino()
{
this.curr = null;
}
private static IReadOnlyList <MemoizedBlock> GetMemoizedBlocksForTetriminoNode(TetriminoNode node,
ITetrimino tetrimino)
{
var memoizedBlocks = new List <MemoizedBlock>();
foreach (var block in tetrimino.Blocks)
{
var newBlock = new MemoizedBlock
{
Position = block.Position,
FilledBy = block.FilledBy,
Owner = node
};
memoizedBlocks.Add(newBlock);
}
return(memoizedBlocks);
}