鼠标跟随

from processing import *
from math import sin

X = 30
Y = 30
radius = 30

def setup():
    strokeWeight(10)
    frameRate(20)
    size(400,300)

def draw():
    global X, Y, radius
    delay = 16
    background(100)
    stroke(255)
    fill(0,121,184)
    X += (mouse.x-X)/delay;
    Y += (mouse.y-Y)/delay;
    radius = radius + sin(environment.frameCount / 4)

    ellipse(X,Y,radius,radius)

def keyPressed():
    print('A key was pressed', keyboard.key)
    exitp()

run()