dfi-led-matrix/client_sw/movingball_example.py

#!/usr/bin/env python3
from PIL import Image, ImageDraw, ImageFont
from matrixSender import MatrixSender
import time
import numpy as np
from random import randint

matrix = MatrixSender(udphost="localhost", udpport=2323, img_size=(160,24*6), bitsperpixel=2)


if __name__ == '__main__':
    _fps=0
    _time_startsending=0

    im = Image.new("RGBA", matrix._img_size, MatrixSender.C_BLACK) #create image
    draw = ImageDraw.Draw(im) #get draw instance

    ball_pos=np.array((20,20))
    ball_size=10
    ball_vel=np.array((-5,5))


    while(True):
        #------- Update Movements ------
        #move ball
        ball_pos+=ball_vel
        #check collisions with wall
        if ball_pos[0]<=ball_size/2 or ball_pos[0]>=im.size[0]-ball_size/2:
            ball_vel[0]*=-1 #x movement
        if ball_pos[1]<=ball_size/2 or ball_pos[1]>=im.size[1]-ball_size/2:
            ball_vel[1]*=-1 #y movement

        #------- Graphics ------
        #clear screen
        draw.rectangle((0,0,im.size[0],im.size[1]),fill=(0,0,0))

        #draw ball
        draw.ellipse((ball_pos[0]-ball_size/2,ball_pos[1]-ball_size/2,ball_pos[0]+ball_size/2,ball_pos[1]+ball_size/2,),fill=(255,255,255))

        _fps=1/(time.time()-_time_startsending)
        _time_startsending=time.time()
        matrix.send(im) #construct udp packet and send to matrix
        _time_endsending=time.time()

        print("Sendtime="+str(round(_time_endsending-_time_startsending,4))+"s, maxFPS="+str(round(1/(_time_endsending-_time_startsending),2))+", actual FPS="+str(round(_fps,2)))

        #time.sleep(.1) #wait