# Karel game
# Unit 8 Lesson 5

//Make Karel fill the world
//with beepers
function main() {
    //your code here
    while (leftIsClear()) {
    putBeeperLine();
    resetPosition();
    }
    putBeeperLine();
}

function putBeeperLine() {
    putBeeper();
    while (frontIsClear()) {
    move();
    putBeeper();
    }
}

function resetPosition() {
    turnAround();
    while (frontIsClear()) {
    move();
    }
    turnRight();
    move();
    turnRight();
}

## Unit 9 Lesson 2

//Karel must help rebuild 
//broken columns. Make a 
//column of beepers above
//each beeper you find on
//the first row
function main() {
   while(frontIsClear()){
      move();
      if(beepersPresent()){
         turnLeft();
         while(frontIsClear()){
            move();
            putBeeper();
         }
         getBack();
   }
}
}

function turnAround(){
   turnLeft();
   turnLeft();
}

function getBack(){
   turnAround();
   while(frontIsClear()){
      move();
   }
   turnLeft();
}

## Unit 12 lesson 1

function main() {
   markWalls();
	putBeepersDown();
	turnAround();
	move();
	putBeeper();
	turnAround();
	goToWall();
	turnAround();
	lastBeeperStanding();
}

//Karel moves to end walls, marking them with beepers

function markWalls() {
	goToWall();
	putBeeper();
	turnAround();
	goToWall();
	putBeeper();
	turnAround();
	move();
}

function goToWall() {
	while(frontIsClear()) {
		move();
	}
}


function putBeepersDown() {
	while(noBeepersPresent()) {
		move();
		if (beepersPresent()) {
			turnAround();
			move();
			putBeeper();
			move();
		}
	}
}

function lastBeeperStanding() {
	while (frontIsClear()) {
		if (beepersPresent()) {
			pickBeeper();
		}
		move();
	}
	pickBeeper();
}

Karel과 함께하는 더 많은 알고리즘 문제를 원한다면?
http://telnicky.github.io/kareljs/