// OCD KAREL V2
package Lesson5;
import kareltherobot.*;

public class Lessson5Activity1 extends Robot {
    public Lessson5Activity1(int x, int y, Direction d, int b) { super(x, y, d, b); }

    /**
     * robot turns right
     * @param
     * @return
     */
    public void turnRight() {
        int delay = World.delay();
        World.setDelay(0);
        turnLeft();
        turnLeft();
        World.setDelay(delay);
        turnLeft();
    }
    /**
     * @param
     * @return x
     */
    public boolean beeper(){
        boolean x =frontIsClear();
        return x;
    }

    /**
     * @param
     * @return y
     */
    public boolean check(){
        boolean y = nextToABeeper();
        return y;
    }

    /**
     * robot returns to the left side of the walls
     * @param
     * @return
     */
    public void bobbyReturns() {
        for (int index = 0; index < 90; index++) {
            if (frontIsClear()) {
                super.move();
            } else {
                turnLeft();
                turnLeft();
                super.move();
                turnLeft();

                if (frontIsClear()) {
                    super.move();
                    turnLeft();
                    break;
                } else {
                    turnRight();
                    super.move();
                    turnLeft();
                    super.move();
                    turnLeft();

                }

            }
        }
    }

    /**
     * robot puts beeper to the corresponding side
     * @param
     * @return
     */
    public void bobbyCorresponding(){
        turnLeft();
        turnLeft();

        while(frontIsClear()) {
            super.move();
        }

        if(!(nextToABeeper())){
            putBeeper();
        }
        turnLeft();
        turnLeft();
        bobbyReturns();
    }

    /**
     * robot moves when no wall is in front of it
     * @param
     * @return
     */
    public void bobbyFront(){
        while(!(frontIsClear())){
            turnRight();
            super.move();
            turnLeft();
        }
        while ((frontIsClear())){
            while(frontIsClear()){
                super.move();
            }

            if((nextToABeeper())) {
                bobbyCorresponding();
            }else{
                turnLeft();
                turnLeft();
                super.move();
                turnLeft();
                super.move();
                turnLeft();
            }
        }

    }


    public static void main(String[]args){
        World.setDelay(20);
        World.setVisible();
        World.readWorld("KarelChallenges1.kwld");

        Lessson5Activity1 bobby =new Lessson5Activity1(1,6,West,100);

        for(int index=0;index< 90;index++){
            bobby.bobbyFront();
        }
    }

}