python慢画炫彩圆圈_pygame_作者:李兴球

版权声明：所有文章皆为李兴球先生原创，转载请注明出处，否则保留权利，追究责任。 https://blog.csdn.net/avskya/article/details/81447934

import pygame
from pygame.locals import *
import math
import colorsys

pygame.init()
screenWidth,screenHeight=480,360
screenCenterx,screenCentery = screenWidth//2 -1 ,screenHeight//2 - 1
screen = pygame.display.set_mode((screenWidth,screenHeight))
pygame.display.set_caption("python慢画炫彩圆圈_pygame_作者:李兴球")

class Pen():
    def __init__(self,radius,color,thickness):
        self.color = color         #笔颜色
        self.thickness = thickness #笔迹宽度
         
        self.x = screenCenterx  + radius
        self.y = screenCentery
        self.angle = 0
        self.radius =radius
    def move(self):
        self.x = int(screenCenterx + self.radius *  math.cos(math.radians(self.angle)))
        self.y = int(screenCentery + self.radius *  math.sin(math.radians(self.angle)))
        pygame.draw.circle(screen,self.color,(self.x,self.y),20, 0) #画圆点
        self.angle = self.angle + 1
    def coloradd(self):
        h,l,s, = colorsys.rgb_to_hls(self.color[0]/255,self.color[1]/255,self.color[2]/255)
        h =  h + 0.01
        r,g,b = colorsys.hls_to_rgb(h,l,s)
        self.color = (int(r*255),int(g*255),int(b*255))
def main(): 
    pen  = Pen(100,(255,0,0),2)
    clock = pygame.time.Clock()
    运行中 = True
    
    while 运行中:
        for event in pygame.event.get():
            if event.type==QUIT:运行中=False

        pen.move()
        pen.coloradd()
        pygame.display.update()      
        clock.tick(30)
        
    pygame.quit()

if __name__=="__main__":
    main()