import pgzrun
import random
WIDTH = 800
HEIGHT = 600

balls=[]

def ball_add(x,y):
speedx= random.randint(1,4)
speedy=random.randint(1,4)
r=random.randint(5,50)
colorR=random.randint(10,255)
colorG=random.randint(10,255)
colorB=random.randint(10,255)
ball= [x,y,speedx,speedy,r,colorR,colorG,colorB]
balls.append(ball)

def draw():
screen.fill("white")
for ball in balls:
screen.draw.filled_circle((ball[0],ball[1]),ball[4],(ball[5],ball[6],ball[7]))

def update():
for ball in balls:
ball[0]=ball[0]+ball[2]
ball[1]=ball[1]+ball[3]
if ball[0]>WIDTH - ball[4] or ball[0]<ball[4]:
ball[2]=-ball[2]
if ball[1]>HEIGHT-ball[4] or ball[1]<ball[4]:
ball[3]=-ball[3]

def on_mouse_move(pos,rel,buttons):
if mouse.LEFT in buttons:
x=pos[0]
y=pos[1]
ball_add(x,y)

pgzrun.go()