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Haskell exercise
Tetris rotate
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import Data.List
data Block = Block (Int,Int)
deriving (Eq,Show)
-- The colour of a tetromino.
data Color = Red | Green | Blue | Yellow | Cyan | Magenta | Orange
deriving (Eq,Show)
data Tetromino = Tetromino Int (Int,Int) Color [Block]
deriving (Eq,Show)
-- Rotate a block 90 degrees
rotateBlock :: Int -> Block -> Block
rotateBlock offset (Block (x,y)) = Block ((-y)+offset,x)
-- Rotate a whole tetromino
-- This boils down to rotating all the blocks in the tetromino
-- try to use the map function for this in combination with rotateBlock
-- (* Difficulty 1 *)
rotate :: Tetromino -> Tetromino
rotate (Tetromino s p c blocks) = undefined