OurGamesForCourse

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namespace PauchiaUkladka;
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public abstract class Block
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{
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    protected abstract Position[][] Tiles
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    {
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        get;
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    }
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    protected abstract Position StartOffset
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    {
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        get;
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    }
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    public abstract int Id
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    {
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        get;
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    }
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    private int rotationState;
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    private Position offset;
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    public Block()
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    {
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        offset = new Position(StartOffset.Row, StartOffset.Column);
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    }
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    public IEnumerable<Position> TilePositions()
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    {
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        foreach (Position p in Tiles[rotationState])
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        {
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            yield return new Position(p.Row + offset.Row, p.Column + offset.Column);
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        }
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    }
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    public void RoatateCW()
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    {
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        rotationState = (rotationState + 1) % Tiles.Length;
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    }
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    public void RoatateCCW()
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    {
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        if (rotationState == 0)
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        {
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            rotationState = Tiles.Length - 1;
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        }
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        else
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        {
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            rotationState--;
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        }
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    }
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    public void Move(int rows, int columns)
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    {
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        offset.Row += rows;
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        offset.Column += columns;
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    }
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    public void Reset()
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    {
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        rotationState = 0;
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        offset.Row = StartOffset.Row;
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        offset.Column = StartOffset.Column;
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    }
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}