python慢画炫彩正弦曲线_pygame_作者:李兴球

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"""本程序会慢慢地画一条酷炫的正弦曲线"""

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慢画炫彩正弦曲线_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  - 180
        self.y = screenCentery
        self.angle = 0
        self.radius =radius
    def setxy(self,angle):
        self.x = int(screenCenterx +   angle)
        self.y = int(screenCentery -  100*math.sin(math.radians(angle)))
        pygame.draw.circle(screen,self.color,(self.x,self.y),10, 0) #画圆点
         
    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()    
    
    for angle in range(-180,181):
        for event in pygame.event.get():
            pass
        pen.setxy(angle)
        pen.coloradd()
        pygame.display.update()      
        clock.tick(60)

    运行中 = True 
    while 运行中:        
        for event in pygame.event.get():
            if event.type==QUIT:运行中=False
        pygame.display.update()
        clock.tick(10)
    pygame.quit()
 

if __name__=="__main__":
    main()