aufgabe 9

int obstaclesCounter = 0;
        int i;
        int j;
        putLeaf();
        int length = countLength();
        turnRight();
        int width = countWidth();
        removeLeaf();
        turnLeft();
        for (j = 0; j < width; j++) {
            for (i = 0; i < (length - 1); i++) {
                if (!mushroomFront() && !treeFront()) {
                    move();
                }
                else {
                    obstaclesCounter++;
                    goAround();
                    i++;
                }
            }
            if (i < length) {
                goDownBack();
            }
            else {
                goDownFront();
            }
        }
        showMessage("# Hindernisse: %d", obstaclesCounter);
    }

    int countLength() {
        int i = 0;
        if (treeFront() || mushroomFront()) {
            goAround();
            i = i + 2;
        }
        else {
            move();
            i++;
        }

        while (!onLeaf()) {
            if (treeFront() || mushroomFront()) {
                goAround();
                i = i + 2;
            }
            else {
                move();
                i++;
            }
        }
        return i;
    }

    int countWidth() {
        int j = 0;
        if (treeFront() || mushroomFront()) {
            goAround();
            j = j + 2;
        }
        else {
            move();
            j++;
        }

        while (!onLeaf()) {
            if (treeFront() || mushroomFront()) {
                goAround();
                j = j + 2;
            }
            else {
                move();
                j++;
            }
        }
        return j;
    }

    void goAround() {
        turnRight();
        move();
        turnLeft();
        move();
        move();
        turnLeft();
        move();
        turnRight();
    }

    void goDownBack() {
        if (!(treeFront() && mushroomFront())) {
            move();
            turnRight();
            if (!(treeFront() || mushroomFront())) {
                move();
                turnLeft();
            }
            else {
                turnLeft();
                move();
                turnRight();
                move();
                turnLeft();
            }
        }
        else {
            turnRight();
            move();
            turnLeft();
            move();
        }
    }

    void goDownFront() {
        turnRight();
        move();
        turnLeft();
    }