import math,sys,pygame
from pygame.locals import *
pygame.init()
screen=pygame.display.set_mode((600,500))
pygame.display.set_caption("The Pie Game-Press1,2,3,4")
myfont=pygame.font.Font(None,60)

color =200,80,60
width=4
x=300
y=250
radius=200
position=x-radius,y-radius,radius*2,radius*2

piece1=False
piece2=False
piece3=False
piece4=False

while True:
    for event in pygame.event.get():
        if  event.type==QUIT:
            sys.exit()
        elif event.type==KEYUP:
            if event.type==pygame.K_ESCAPE:
                sys.exit()
            elif event.key==pygame.K_1:
                piece1=True
            elif event.key==pygame.K_2:
                piece2=True
            elif event.key==pygame.K_3:
                piece3=True
            elif event.key == pygame.K_4:
                piece4 = True
    screen.fill((0,0,200))
    textImage1=myfont.render("1",True,color)
    textImage2=myfont.render("2",True,color)
    textImage3=myfont.render("3",True,color)
    textImage4=myfont.render("4",True,color)
    screen.blit(textImage1,(x+radius/2-20,y-radius/2))
    screen.blit(textImage2,(x-radius/2,y-radius/2))
    screen.blit(textImage3,(x-radius/2,y+radius/2-20))
    screen.blit(textImage4,(x+radius/2-20,y+radius/2-20))
    if piece1:
        start_angle=math.radians(0)
        end_angle=math.radians(90)
        pygame.draw.arc(screen,color,position,start_angle,end_angle,width)
        pygame.draw.line(screen,color,(x,y),(x,y-radius),width)
        pygame.draw.line(screen,color,(x,y),(x+radius,y),width)

    if piece2:
        start_angle=math.radians(90)
        end_angle=math.radians(180)
        pygame.draw.arc(screen,color,position,start_angle,end_angle,width)
        pygame.draw.line(screen,color,(x,y),(x,y-radius),width)
        pygame.draw.line(screen,color,(x,y),(x-radius,y),width)
    if piece3:
        start_angle=math.radians(180)
        end_angle=math.radians(270)
        pygame.draw.arc(screen,color,position,start_angle,end_angle,width)
        pygame.draw.line(screen,color,(x,y),(x-radius,y),width)
        pygame.draw.line(screen,color,(x,y),(x,y+radius),width)
    if piece4:
        start_angle=math.radians(270)
        end_angle=math.radians(360)
        pygame.draw.arc(screen,color,position,start_angle,end_angle,width)
        pygame.draw.line(screen,color,(x,y),(x,y+radius),width)
        pygame.draw.line(screen,color,(x,y),(x+radius,y),width)

    if piece1 and piece2 and piece3 and piece4:
        color=0,255,0
    pygame.display.update()