# model.py
# YOUR NAME(S) AND NETID(S) HERE
# DATE COMPLETED HERE
"""Model module for Breakout

This module contains the model classes for the Breakout game. Instances of
Model storee the paddle, ball, and bricks.  The model has methods for resolving
collisions between the various game objects.  A lot of your of your work
on this assignment will be in this class.

This module also has an additional class for the ball.  You may wish to add
more classes (such as a Brick class) to add new features to the game.  What
you add is up to you."""
from constants import *
from game2d import *
import random # To randomly generate the ball velocity

class Model(object):
    """An instance is a single game of breakout.  The model keeps track of the
    state of the game.  It tracks the location of the ball, paddle, and bricks.
    It determines whether the player has won or lost the game.  
    
    To support the game, it has the following instance attributes:
    
        _bricks:  the bricks still remaining 
                  [list of GRectangle, can be empty]
        _paddle:  the paddle to play with 
                  [GRectangle, never None]
        _ball:    the ball 
                  [Ball, or None if waiting for a serve]
    
    As you can see, all of these attributes are hidden.  You may find that you
    want to access an attribute in call Breakout. It is okay if you do, but
    you MAY NOT ACCESS THE ATTRIBUTES DIRECTLY. You must use a getter and/or
    setter for any attribute that you need to access in Breakout.  Only add
    the getters and setters that you need.
                  
    LIST MORE ATTRIBUTES (AND THEIR INVARIANTS) HERE IF NECESSARY
    """
    
    # GETTERS AND SETTERS (ONLY ADD IF YOU NEED THEM)
    
    # INITIALIZER (TO CREATE PADDLES AND BRICKS)
    
    # ADD ANY ADDITIONAL METHODS (FULLY SPECIFIED) HERE


class Ball(GEllipse):
    """Instance is a game ball.
    
    We extends GEllipse because a ball in order to add attributes for a 
    velocity. This subclass adds these two attributes.
    
    INSTANCE ATTRIBUTES:
        _vx: Velocity in x direction [int or float]
        _vy: Velocity in y direction [int or float]
    
    The class Model will need to access the attributes. You will
    need getters and setters for these attributes.
    
    In addition to the getters and setter, you should add two
    methods to this class: an initializer to set the starting velocity 
    and a method to "move" the ball. The move method should adjust the 
    ball position according to the velocity.
    
    NOTE: The ball does not have to be a GEllipse. It could be an instance
    of GImage (why?). This change is allowed, but you must modify the class
    header up above.
    
    LIST MORE ATTRIBUTES (AND THEIR INVARIANTS) HERE IF NECESSARY
    """
    
    # GETTERS AND SETTERS (ONLY ADD IF YOU NEED THEM)
    
    # INITIALIZER TO SET VELOCITY
    
    # METHOD TO MOVE BALL BY PROPER VELOCITY
    
    # ADD MORE METHODS (PROPERLY SPECIFIED) AS NECESSARY


# ADD ANY ADDITIONAL CLASSES HERE