# implementation of card game - Memory

#after a pair, got an card flipped --check error

import simplegui
import random

list1=[]
list2=[]
exposed=[]
turned_card1=-1
turned_card2=-1
counter=0

def exposed_generator():
    exposed=[]
    for i in range(0,16):
        exposed.append(False)
    return exposed

def list_generator():
    for i in range(0,8):
        list1.append(random.randint(0, 8))
        list2.append(random.randint(0, 8))
    return list1+list2

# helper function to initialize globals
def new_game():
    global full_list,state,exposed,counter, turned_card1,turned_card2
    full_list=list_generator()
    exposed=exposed_generator()
    state=0
    turned_card1=-1
    turned_card2=-1
    counter=0
    label.set_text('Turns: 0')

# define event handlers
def mouseclick(pos):
    # add game state logic here
    global state, exposed,click_pos,turned_card1,turned_card2,counter
    click_pos=pos[0]//50

    if state==0:
        if exposed[click_pos]==False:
            state=1
            exposed[click_pos]=True
            turned_card1=click_pos
            counter+=1
    elif state==1:
        if exposed[click_pos]==False:
            state=2

            exposed[click_pos]=True
            turned_card2=click_pos
            counter+=1
    else:
        if exposed[click_pos]==False:

            if full_list[turned_card1]==full_list[turned_card2]:
                #if two cards match, display numbers

                exposed[click_pos]=True
                turned_card1=click_pos
                turned_card2=-1

            else:
                exposed[turned_card1]=False
                exposed[turned_card2]=False
                exposed[click_pos]=True
                turned_card1=click_pos
                counter+=1
            state=1
    label.set_text('Turns: '+str(counter))

# cards are logically 50x100 pixels in size
def draw(canvas):
    global full_list,pos1,exposed
    horizontal_position=25


    for i in range(16):
        if exposed[i]:
            canvas.draw_text(str(full_list[i]), [horizontal_position+i*50,50], 16, 'Red')
        else:
            canvas.draw_polygon([[i*50, 0], [(i+1)*50, 0], [(i+1)*50, 100],[i*50, 100]], 1, "Black", "Green")

# 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()

# Always remember to review the grading rubric