[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

particles = []
def setup():
    size(1024,700)
    noStroke()
    for i in range(1,1000):
        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)

青出于蓝

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

青出于蓝

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If you has any questions，welcome to ask me