from tkinter import *

class Tile:
    """A representation of a tile on the display"""

    shapes = {'circle' : 'o', 'cross' : 'x', 'triangle' : '^', 'none' : ' ',
    'square' : '#', 'vertical' : '|', 'horizontal' : '-'}
    
    def __init__(self, bgroundColor, fgroundColor = 'white', fgroundShape = ' '):
        self.bgc = bgroundColor
        self.fgc = fgroundColor
        self.fgs = fgroundShape

    def paint(self, display, x, y): #display being a canvas
        if type(display) != Canvas:
            raise TypeError('Display must be a tkinter.Canvas.')
        else:
            tag = '(' + str(int(x)) + ', ' + str(int(y)) + ')'
            display.delete(tag) #delete the old tile before creating a new one.
            if self.bgc != 'clear':
                display.create_rectangle((x*32, y*32, x*32+32, y*32+32),
                                         fill = self.bgc, width = 0, tags = (tag))
            if self.fgs == Tile.shapes['triangle']:
                display.create_polygon((x*32+15, y*32+2, x*32+2, y*32+30,
                                        x*32+30, y*32+30, x*32+16, y*32+2),
                                       fill = self.fgc, width = 0, tags = (tag))
            elif self.fgs == Tile.shapes['circle']:
                display.create_oval((x*32+2, y*32+2, x*32+30, y*32+30),
                                    fill = self.fgc, width = 0, tags = (tag))
            elif self.fgs == Tile.shapes['cross']:
                display.create_line((x*32+2, y*32+2, x*32+30, y*32+30),
                                    fill = self.fgc, width = 3, tags = (tag))
                display.create_line((x*32+30, y*32+2, x*32+2, y*32+30),
                                    fill = self.fgc, width = 3, tags = (tag))
            elif self.fgs == Tile.shapes['square']:
                display.create_rectangle((x*32+2, y*32+2, x*32+30, y*32+30),
                                     fill = self.fgc, width = 0, tags = (tag))
            elif self.fgs == Tile.shapes['vertical']:
                display.create_line((x*32+16, y*32, x*32+16, y*32+32),
                                     fill = self.fgc, width = 3, tags = (tag))
            elif self.fgs == Tile.shapes['horizontal']:
                display.create_line((x*32, y*32+16, x*32+32, y*32+16),
                                     fill = self.fgc, width = 3, tags = (tag))
            else: pass