The following is extra information. Any changes you do that follow the bottom must not be present
in your submitted file!

A few people have asked me about doing cooler things with the AI or 
having their AI play against their friends AI. This is a couple suggestions
for how to do this. Make sure to do this only AFTER you have finished 
the rest of the assignment and keep a backup copy of the assignment. You
will be handing in the BACKUP copy.


1)Making your AI smarter:

There are several improvements you can make to the heuristic. For example, the 
heuristic as implemented doesn't detect cases where a player has 2 in a row, then
a gap of 1, and then another piece.

If you want to add stuff to your heuristic but keep it close to the requirements for the assignment,
create a boolean that will affect whether to be more complicated or not. For example you could do the 
following

public int heuristic(Board b, Piece turn) {
   boolean isAdvanced = true;
   if (isAdvanced) {
       return assignmentHeuristic(b,turn) + myHeuristic(b,turn)
   }
   else {
       return assignmentHeuristic(b, turn) + myHeurstic(b,turn);
   }

}

assignmentHeuristic() would then be what is required. In this way, you can switch back and forth between the two easily.
Again though, make sure when you hand in that you are using just the assignment heuristic as you won't
pass the unit tests.

2)Playing against each other.

To play against another AI, there are a few (small) changes you'll have to make.

Strong suggestion is to make a backup here too before making any changes.

1)Put all the files from person on the same machine. (ComputerPlayer,Board, Player,HumanPlayer,ConectFour, Piece, etc)
2)Rename the OTHER player's ComputerPlayer.java to be ComputerPlayer2.java (and change the class name accordingly)
3)Inside the ConnectFour.java file, search for the method promptForNextPlayer() . In here, you should be able to add a new 
condition  that checks if the user has entered a different letter--say "o" 

If the user has entered a new letter, then do the same as before except create a new

ComputerPlayer2()

instead of ComputerPlayer()

4)Compile all files together. (Same as before except you'll add an additional file ComputerPlayer2.java

This will make it so that the player for whom you typed c are the first AI and all players for whom you type o are the second