# dieview2.py
from graphics import *
class DieView:
    """ DieView is a widget that displays a graphical
    representation of a standard six-sided die."""
    
    def __init__(self, win, center, size):
        """Create a view of a die, e.g.:
           d1 = GDie(myWin, Point(40,50), 20)
        creates a die centered at (40,50) having sides
        of length 20."""

        # first define some standard values
        self.win = win
        self.background = "white" # color of die face
        self.foreground = "black" # color of the pips
        self.psize = 0.1 * size   # radius of each pip
        hsize = size / 2.0        # half of size
        offset = 0.6 * hsize      # distance from center
                                    to outer pips

        # create a square for the face
        cx, cy = center.getX(), center.getY()
        p1 = Point(cx-hsize, cy-hsize)
        p2 = Point(cx+hsize, cy+hsize)
        rect = Rectangle(p1,p2)
        rect.draw(win)
        rect.setFill(self.background)

        # Create 7 circles for standard pip locations
        self.pips = [ self.__makePip(cx-offset, cy-offset),
                      self.__makePip(cx-offset, cy),
                      self.__makePip(cx-offset, cy+offset),
                      self.__makePip(cx, cy),
                      self.__makePip(cx+offset, cy-offset),
                      self.__makePip(cx+offset, cy),
                      self.__makePip(cx+offset, cy+offset) ]

        # Create a table for which pips are on for each value 
        self.onTable = [ [], [3], [2,4], [2,3,4], 
            [0,2,4,6], [0,2,3,4,6], [0,1,2,4,5,6] ]

        self.setValue(1)

    def __makePip(self, x, y):
        """Internal helper method to draw a pip at (x,y)"""
        pip = Circle(Point(x,y), self.psize)
        pip.setFill(self.background)
        pip.setOutline(self.background)
        pip.draw(self.win)
        return pip

    def setValue(self, value):
        """ Set this die to display value."""
        # Turn all the pips off
        for pip in self.pips:
            pip.setFill(self.background)

        # Turn the appropriate pips back on
        for i in self.onTable[value]:
            self.pips[i].setFill(self.foreground)