syndilights/clients/plasma.py

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# Client program
from socket import *
import sys
import time
import random
from math import *
# Set the socket parameters
local_port = 5000
remote_port = 4321
# TODO: autodetect interface address for remote application
outgoing_if = "127.0.0.1"
remote_host = "127.0.0.1"
# udp is the default for DGRAM
UDPSock = socket(AF_INET, SOCK_DGRAM)
UDPSock.bind((outgoing_if, local_port))
# we will not use connections so we can keep working even if the server
# goes down or refuses connection
#UDPSock.connect((remote_host, remote_port))
segments = open('segments','r')
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alpha = chr(155)
z_buffer = chr(1) + "\n"
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width = 7
height = 12
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segments = 8
segwidth = 12
segchannels = 4
# Send messages
sleeptime = 0.03
t = 0
frequency = 2*pi/200
max = 0.0
while (1):
#zero out the data buffer
data = z_buffer
for i in range(0,width):
for j in range(0,height):
pixel = fabs(sin(2*pi*(float(i)/width)+t*frequency)*sin(2*pi*(float(j)/height)+t*frequency))
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data = data + chr(int(254*pixel)) + alpha
data = data + "\n"
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for i in range(0,segwidth):
for j in range(0,segments):
for a in range(0,segchannels):
data += chr(254)
data += "\n"
t+=1
#print( data )
#data += segments.read()
if not data:
break
else:
UDPSock.sendto(data,(remote_host,remote_port))
#send ~100 packets per second
time.sleep(sleeptime)
UDPSock.close()