p5 skulpt

gif.txt

http://g.recordit.co/CWfjWxrBqz.gif

p5.py

from p5 import p5

p = p5()
c = p.createCanvas(720, 400)
c.parent('turtle')


class Particle:
  def __init__(self, position):
    self.acc = p.createVector(0, 0.05);
    self.vel = p.createVector(p.random(-1, 1), p.random(-1, 0));
    self.pos = position.copy()
    self.life = 255

  def run(self):
    self.update()
    self.display()

  def update(self):
    self.vel.add(self.acc)
    self.pos.add(self.vel)
    self.life -= 2

  def display(self):
    p.stroke(200, self.life);
    p.strokeWeight(2);
    p.fill(127, self.life);
    p.ellipse(self.pos.x, self.pos.y, 12, 12);

  def isDead(self):
    return self.life < 0;



class ParticleSystem:
  def __init__(self, position):
    self.origin = position.copy()
    self.particles = []

  def addParticle(self):
    self.particles.append(Particle(self.origin))

  def run(self):
    for p in self.particles:
      p.run()
      if p.isDead():
        self.particles.remove(p)


position = p.createVector(p.width//2, 50)
system = ParticleSystem(position)

def draw():
  p.background(51)
  system.addParticle()
  system.run()


while True:
  draw()