pong.py

import time
import arduino_lights as al

ser = al.connect()


def paddel(x, y):
    for h in range(y - 1, y + 2):
        al.set_pixel(ser, (x, h), 0, 255, 0)


def clear():
    for x in range(0, 12):
        for y in range(0, 12):
            al.set_pixel(ser, (x, y), 0, 0, 0)


ballx = 5
bally = 11
deltax = -1
deltay = 1
paddels = [5, 7]
while(True):
    clear()

    if ballx == 10 or ballx == 1:
        deltax = -deltax
    if bally == 11 or bally == 0:
        deltay = -deltay
    ballx = ballx + deltax
    bally = bally + deltay

    active_paddel = 0
    if deltax > 0:
        active_paddel = 1

    al.set_pixel(ser, (ballx, bally), 0, 255, 0)

    if paddels[active_paddel] != bally:
        diff = bally - paddels[active_paddel]
        paddels[active_paddel] = paddels[active_paddel] + (diff / abs(diff))
        if paddels[active_paddel] == 0:
            paddels[active_paddel] = 1
        if paddels[active_paddel] == 11:
            paddels[active_paddel] = 10
    paddel(0, paddels[0])
    paddel(11, paddels[1])

    al.end_frame(ser)
    time.sleep(0.05)