module Strategy1 where

import Datatypes
import VM
import Datatypes.Game (Command(..))

    
strat1 :: Game -> ([Command],Int)
strat1 game = if new_notes == GameOver
             then (new_command : [], score new_game)
             else (new_command : (fst $ strat1 new_game), snd $ strat1 new_game)
  where
    (new_game_se,notes_se) = step game MoveSE
    (new_game_sw,notes_sw) = step game MoveSW
    se = (new_game_se,notes_se,MoveSE)
    sw = (new_game_sw,notes_sw,MoveSW)
    (new_game,new_notes,new_command) = case (notes_sw,notes_se) of
                                     (GameOver,GameOver)  -> se
                                     (_,GameOver)         -> sw
                                     (GameOver,_)         -> se
                                     (Lock i,OK)          -> if i > 0 
							      then sw
							      else se
                                     (OK,Lock i)          -> if i > 0 
						              then se
							      else sw
                                     (OK,OK)              -> sw
				     (Lock i,Lock j)      -> if i > j
							      then sw
							      else se
				     otherwise		  -> (game,GameOver,MoveE)