import pygame, sys
from pygame.locals import *
from PIL import Image

pygame.init()

def get_image_width(filepath):
    return ((Image.open(filepath).size)[0])

def get_image_height(filepath):
    return ((Image.open(filepath).size)[1])

FPS = 30 #frames per second setting
fpsClock = pygame.time.Clock()

#screen size
screenx = 400
screeny = 300

#set up the window
screen = pygame.display.set_mode((screenx, screeny), 0, 32)
pygame.display.set_caption('animation')

#set up the colors
white = (255, 255, 255)
black = (  0,   0,   0)
green = (0, 255, 0)
blue = (0, 0, 180)
red   = (255,   0,   0)

img_itlablogo = 'img/itlablogo.png'
img_itlablogo_image  = pygame.image.load(img_itlablogo)
img_itlablogo_imagex = get_image_width(img_itlablogo)
img_itlablogo_imagey = get_image_height(img_itlablogo)
direction = 'left'

# text setting
font_obj = pygame.font.Font('freesansbold.ttf', 32)
text_surface_obj = font_obj.render('Hello World!', True, green, blue)
text_rect_obj = text_surface_obj.get_rect()
text_rect_obj.center = (0, 150)

while True: # the main game loop
    screen.fill(white)

    # draw a green polygon onto the surface
    #pygame.draw.polygon(screen, green, ((146, 0), (291, 106), (236, 277), (56, 277), (0, 106)))

    # draw some blue lines onto the surface
    #pygame.draw.line(screen, blue, (60, 60), (120, 60), 4)
    #pygame.draw.line(screen, blue, (120, 60), (60, 120))
    #pygame.draw.line(screen, blue, (60, 120), (120, 120), 4)

    # draw a blue circle onto the surface
    #pygame.draw.circle(screen, blue, (300, 50), 20, 0)

    # draw a red ellipse onto the surface
    #pygame.draw.ellipse(screen, red, (100, 150, 40,80), 1)

    # draw a red rectangle onto the surface
    #pygame.draw.rect(screen,red, (200, 150, 100, 50))

    # draw the text onto the surface
    #screen.blit(text_surface_obj, text_rect_obj)


    #the animation of the image
    # if direction == 'right':
    #     imagex += 5
    #     if imagex == 360:
    #         direction = 'down'
    # elif direction == 'down':
    #     imagey += 5
    #     if imagey == 260:
    #         direction = 'left'
    # elif direction == 'left':
    #     imagex -= 5
    #     if imagex == 20:
    #         direction = 'up'
    # elif direction == 'up':
    #     imagey -= 5
    #     if imagey == 20:
    #         direction = 'right'
    screen.blit(img_itlablogo_image, (screenx-img_itlablogo_imagex-20, screeny-img_itlablogo_imagey-20))

    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()

    pygame.display.update()
    fpsClock.tick(FPS)