[已解决]Processing Python

ccFIshTImehaha

I am writing processing with python mode these days.
When I run my project as this:
----------------------------------------------------------------------------------------------------
particles = []
def setup():
    size(1024,700)
    noStroke()
    for i in range(1000):
        x = random(0,width)
        y = random(0,height)
        v_mag = random(1.0,2.0)
        v_angle = random(-2*PI,2*PI)
        particle = [x,y,v_mag,v_angle]
        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,2*PI)
        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]>width or particle[1]>height:
        particle[0] = random(0,width)
        particle[1] = random(0,height)
    circle(particle[0],particle[1],2)
------------------------------------------------------------------------------------------------------
There is only a particle,not a lot.
but I used 'for i in range(1000):',why does it happened？
Friends who have studied processing, please help me！

最佳答案

月排行榜 / 总排行榜

青出于蓝

2021-2-21 16:09:14

'range' needs two values
Sorry，I am not good at speaking English

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青出于蓝

1. particles = []
   
2. def setup():
   
3.     size(1024,700)
   
4.     noStroke()
   
5.     for i in range(1,1000):
   
6.         x = random(0,width)
   
7.         y = random(0,height)
   
8.         v_mag = random(1.0,2.0)
   
9.         v_angle = random(-2*PI,2*PI)
   
10.         particle = [x,y,v_mag,v_angle]
    
11.         particles.append(particle)
    
12.    
    
13. def draw():
    
14.     fill(0,10)
    
15.     rect(0,0,width,height)
    
16.     fill(255)
    
17.     for particle in particles:
    
18.         noiseValue = noise(0.001*particle[0],10+0.001*particle[1],frameCount*0.005)
    
19.         particle[3] = map(noiseValue,0,1,-2*PI,2*PI)
    
20.         vx = particle[2]*cos(particle[3])
    
21.         vy = particle[2]*sin(particle[3])
    
22.         particle[0] = particle[0] + vx
    
23.         particle[1] = particle[1] + vy
    
24.     if particle[0]>width or particle[1]>height:
    
25.         particle[0] = random(0,width)
    
26.         particle[1] = random(0,height)
    
27.     circle(particle[0],particle[1],2)

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青出于蓝

'range' needs two values
Sorry，I am not good at speaking English

青出于蓝

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