/* PERMITTED COMMANDS
   move, turnLeft, turnRight, treeLeft, treeRight, treeFront, onLeaf, putLeaf, removeLeaf, mushroomFront
   JAVA
   if, while, for

   To use this code in Greenfoot copy everything below to */

class MyClara extends Clara {
    void run() {
        int b = 0;
        //Clara uses AI() function, along with the variable b, which helps her to
        //change the lane and her direction( East or West ). She starts with facing
        //towards East and then store 1 as a value in b, so when next time loop
        //executes turns towards West, changing the value of b to 0. This loop
        //continues until their is a tree infront of her.
        while(!treeFront())
        {
            AI();
            if (b == 0)
            {
                if(!treeRight())
                {
                    turnRight();
                    move();
                    turnRight();
                    b = 1;
                }
            }
            else if (b == 1)
            {
                if(!treeLeft())
                {
                    turnLeft();
                    move();
                    turnLeft();
                    b = 0;
                }
            }
        }

    }

    //Using this function clara moves until their is a tree infront of her, along
    //with executing IQ() function.
    void AI()
    {
        while(!treeFront())
        {
            IQ();
            move();
        }
        IQ();
    }

    //This function is for clara to remove leaf if their is one underneath her and if
    //not, she is places a leaf undernath her.
    void IQ()
    {
        if(!onLeaf())
            {
                putLeaf();
            }
            else
            {
                removeLeaf();
            }
    }
}