This class represents a two$-$dimensional tetris piece dropping into the tetris well. Figure $1$ depicts some examples of pieces. The block is practically a square$-$size placeholder for the Tile objects. But not all the spots are necessarily occupied. When the block is generated, we randomly pick the spots that will be filled in with tiles. All the tiles of a block must have the same color. Lastly, the block is dynamic which means that while it$$s dropping into the well it can transform in the following ways:

$$ It can move left or right $($one spot at a time$)$

$$ It can flip vertically or horizontally

$$ It can rotate clockwise $(90$ degrees at a time$)$

$$ It can scale up $($double in size$)$ or scale down $($shrink in half, but can$$t become smaller than $2$x$2).$