python game练习5.1

#! /usr/bin/env python2.7# -*- coding:utf-8 -*-#File:PG5.py#Date:2013-7-7#Author:wangyuimport pygamefrom pygame.locals import *from sys import exitpygame.init()screen =pygame.display.set_mode((640,480),0,32)def create_scales(height):    red_scale_surface=pygame.surface.Surface((640,height))        green_scale_surface=pygame.surface.Surface((640,height))        blue_scale_surface=pygame.surface.Surface((640,height))    for x in range(640):        c= int((x/640.)*255.)        red =(c,0,0)        green =(0,c,0)        blue=(0,0,c)        line_rect=Rect(x,0,1,height)        pygame.draw.rect(red_scale_surface,red,line_rect)        pygame.draw.rect(green_scale_surface,green,line_rect)        pygame.draw.rect(blue_scale_surface,blue,line_rect)    return red_scale_surface,green_scale_surface,blue_scale_surfacered_scale,green_scale,bule_scale=create_scales(80)color =[127,127,127]while True:    for event in pygame.event.get():        if event.type == QUIT:            exit()        screen.fill((0,0,0))        screen.blit(red_scale,(0,00))        screen.blit(green_scale,(0,00))        screen.blit(bule_scale,(0,00))                x,y=pygame.mouse.get_pos()        if pygame.mouse.get_pressed()[0]:            for conponent in range(3):                if y>component*80 and y<(component+1)*80:                    color[component]=int((x/639.)*255.)                        pygame.display.set_caption("Pygame color test -"+str(tuple(color)))        for component in range(3):            pos =(int ((color[component]/255.)*639),component*80+40)            pygame.draw.circle(screen,(255,255,255),pos,20)#        color =blend_color(colorw1,color2,color3)        pygame.draw.rect(screen,tuple(color),(0,240,640,240))        pygame.display.update()                

这个就是形成的效果图,最下面的那个小圆点是能移动的,当移动时,就能看见图片的颜色不断变化,从黄到蓝

感谢原文博主点击打开链接