Memory

# implementation of card game - Memory

import simplegui
import random

# helper function to initialize globals
def new_game():
    global card_index1, card_index2, resulting_list, state, turns, exposed
    label.set_text('Turns = 0')
    exposed = [False for i in range(16)]
    nums1, nums2 = range(8), range(8)
    resulting_list = nums1 + nums2
    random.shuffle(resulting_list)
    card_index1 = 0
    card_index2 = 0
    state = 0
    turns = 0
    # Uncomment the following line for debugging purposes
    # print "New list:", resulting_list

# define event handlers
def mouseclick(pos):
    # add game state logic here
    global state, card_index1, card_index2, turns
    location = list(pos)
    card_index = pos[0] // 50
    if not exposed[card_index]:
        if state == 0:
            exposed[card_index] = True
            card_index1 = card_index
            state = 1
        elif state == 1:
            card_index2 = card_index
            exposed[card_index2] = True
            state = 2
        elif state == 2:
            if resulting_list[card_index1] != resulting_list[card_index2]:
                exposed[card_index1] = False
                exposed[card_index2] = False
            exposed[card_index] = True
            card_index1 = card_index
            turns += 1
            label.set_text('Turns = ' + str(turns))
            state = 1
        else:
            state = 1

# cards are logically 50x100 pixels in size
def draw(canvas):
    text_pos_list = []
    num_pos = [10, 75]
    index = 0
    for pos in range(len(resulting_list)):
        canvas.draw_text(str(resulting_list[index]), num_pos, 80, "White")
        num_pos[0] += 50
        index += 1

    exp_index = 0
    rect_pos = [[0, 0], [50, 0], [50, 100], [0, 100]]
    for i in range(len(exposed)):
        if exposed[exp_index] == False:
            canvas.draw_polygon(rect_pos, 2, "Black", "Green")
        rect_pos[0][0] += 50
        rect_pos[1][0] += 50
        rect_pos[2][0] += 50
        rect_pos[3][0] += 50
        exp_index += 1

# create frame and add a button and labels
frame = simplegui.create_frame("Memory", 800, 100)
frame.add_button("Reset", new_game)
label = frame.add_label("Turns = 0")

# register event handlers
frame.set_mouseclick_handler(mouseclick)
frame.set_draw_handler(draw)

# get things rolling
new_game()
frame.start()