#MonthOfCode day 15 - yellow

day_15.py

import pygame
from pygame.locals import *
import sys
from time import sleep

# init. pygame libr; create the screen and diplays a help message in the console
pygame.init() 
DISPLAYSURF = pygame.display.set_mode((640, 480))
src_color = pygame.Color('antiquewhite3')
targ_color = pygame.Color('yellow')

#draw it to the screen
pygame.display.set_caption('from white to yellow!')
interp_value=0.0
while interp_value<=1.0: # main game loop
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
    src_triplet =(  src_color.r,  src_color.g, src_color.b   )
    targ_triplet =(  targ_color.r,  targ_color.g, targ_color.b   )
    
    interp_value +=0.01
    interp_triplet = map(
        lambda a,b: int(  (1.0-interp_value) * a + interp_value* b  ),
        src_triplet,
        targ_triplet )

    current_color = pygame.Color( *interp_triplet)
    sleep(0.1 )
    DISPLAYSURF.fill(  current_color )
    pygame.display.update() #Q: whats the difference between update n flip?