/**  
*    class to test out Monster and its children w/ polymorphism
**/
package MonsterInherit;


public class MonsterTestHarness {

    /**  
    *    have two monsters mash it up
    **/
    public static void monsterMash(Monster m1, Monster m2) {
        System.out.println("\nNow is the time on Sprockets when monsters fight!");
        // only let them fight if they are not equal
         if (!m1.equals(m2)) {
            m1.fight(m2);
        } else {
            System.out.println("Hey! [" + m1 + "] and [" + m2 + 
            "] are the same guy!");
            System.out.println("I won't let a monster fight itself!");
        }
    }
    
    /**  
    *    create a bunch of monsters of different types
    *    in an array of Monster
    **/
    public static Monster [] makeMonsters() {
        Monster m = new Monster();
        m.setTeeth(5);

        VampireBat v = new VampireBat();

        MuppetMonster p = new MuppetMonster();
        p.setMySong("Ob la di, ob la da...");

        Monster [] mlist = new Monster[10];
        mlist[0] = m;
        mlist[1] = v;
        mlist[2] = p;
        mlist[3] = new MuppetMonster();
        mlist[4] = new VampireBat();
        
        // rest of monsters with types chosen randomly
        int r = 0;
        for (int i = 5; i < mlist.length; i++) {
            r = (int)(Math.random() * 3);
            if (r == 0) {
                mlist[i] = new Monster();
                // random number of teeth
                mlist[i].setTeeth((int)(Math.random() * 201));
            } else if (r == 1) {
                mlist[i] = new MuppetMonster();
                // ((MuppetMonster)mlist[i]) casts back to the MuppetMonster type
                // and evaluates to the address of a MuppetMonster
                // so we can use a MuppetMonster-only method
                ((MuppetMonster)mlist[i]).setMySong("Song " + i);
            } else {
                mlist[i] = new VampireBat();
            }

        }
        
        return mlist;
    }

    
    
    /**  
    *    main method demonstrating use of monsters
    *     and inheritors
    **/
    public static void main(String [] args) {

        // set up the array
        Monster [] mlist = makeMonsters();

        // each monster fights next in the array (last fights first)
        for (int i = 0; i < mlist.length; i++) {
            monsterMash(mlist[i], mlist[(i+1)%mlist.length]);
        }
        

    }
}