//a game of HiLo

BEGIN
	DECLARE GLOBAL hi,lo,mystery,tries as unsigned integer
	DECLARE GLOBAL guessed as boolean
	DECLARE guess as unsigned integer

	//new game
	SET hi to 100
	SET lo to 0
	SET guessed to false
	SET tries to 10
	SET mystery to random(0-100)

	//game loop
	WHILE (not(guessed) and (tries > 0)) DO
		//let user guess
		SET tries = tries-1
		OUTPUT 'The mystery number lies between ',hi,' and',lo
		INPUT guess

		//how good was the guess (goldilocks logic)
		IF(guess = mystery) THEN
			SET guessed = true
		ELSEIF (guess > mystery) THEN
			SET hi = guess
			OUTPUT 'Too HIGH'
		ELSE
			SET lo = guess
			OUTPUT 'Too LOW'
		ENDIF
	ENDWHILE

	//game outcome
	IF (guessed) THEN
		OUTPUT 'Good work, you guessed it in ',tries,' turns'
	ELSE
		OUTPUT 'too bad, you ran out of guesses - the mystery number was ',mystery
	ENDIF

END