add simple movingball example

client_sw/movingball_example.py

@@ -0,0 +1,40 @@
+#!/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__':
+    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))
+
+
+        matrix.send(im) #construct udp packet and send to matrix
+
+        time.sleep(.1) #wait