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1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎

作者:互联网

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1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎

视频教程:

知乎视频​ www.zhihu.com1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎

Processing的压缩文件、Python Mode压缩包,也可以从百度云盘下载:

链接:https://pan.baidu.com/s/1YOEUhIc9r0c1pOPjHIdr9w

提取码:3i4n

1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎 1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎

下载配置好的同学,可以测试运行以下代码:

particles = []

def setup(): 
  size(1280, 800) 
  noStroke()  
  for i in range(2000): 
    x = random(0,width)  
    y = random(0,height) 
    v_mag = random(1.0,2.0)
    v_angle = random(-2*PI,2*PI)
    c = color(random(100,255),random(100,255),random(100,255))
    particle = [x,y,v_mag,v_angle,c]
    particles.append(particle) 

def draw(): 
  fill(0, 10) 
  rect(0, 0, width, height) 
  fill(255) 
  for particle in particles:    
    noiseValue = noise(0.001*particle[0],10+0.001*particle[1] 
                       ,frameCount*0.005)
    particle[3] = map(noiseValue,0,1,-2*PI,PI*2) 
    vx = particle[2]*cos(particle[3]) 
    vy = particle[2]*sin(particle[3]) 
    particle[0] = particle[0] + vx 
    particle[1] = particle[1] + vy 
    if particle[0]<0 or particle[0]>width 
        or particle[1]<0 or particle[1]>height: 
      particle[0] = random(0,width)  
      particle[1] = random(0,height)
      r = map(sin(frameCount/75.0),-1,1,50,255) 
      g = map(sin(frameCount/101.0),-1,1,75,255) 
      b = map(sin(frameCount/151.0),-1,1,100,255) 
      particle[4] = color(r,g,b)     
    fill(particle[4])    
    circle(particle[0], particle[1], 2) 

正常运行可以得到 第8章 随风飘动的粒子 的效果:

1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎 1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎 知乎视频​ www.zhihu.com1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎

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1 Python与Processing介绍(《Python趣味创意编程》教学视频) - 知乎

标签:map,知乎,particle,Python,random,Processing,255
来源: https://www.cnblogs.com/wangtcc/p/14702933.html