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game_server.py
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game_server.py
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import sys
import cPickle
import math
from game.flappy_bird import FlappyBird
from SocketServer import BaseRequestHandler, UDPServer
flapp_bird = FlappyBird()
class UDPHandler(BaseRequestHandler):
def handle(self):
action = self.request[0]
action = cPickle.loads(action)
socket = self.request[1]
global flapp_bird
x_t, reward, terminal = flapp_bird.frame_step(action)
data = cPickle.dumps((x_t, reward, terminal))
# not larger than 8192 due to the limitation of MXU of udp
buffer_size = 8192
total_size = len(data)
block_num = int(math.ceil(total_size / float(buffer_size)))
# send the length
offset = 0
header = {
"buffer_size": buffer_size,
"total_size": total_size,
"block_num": block_num
}
header = cPickle.dumps(header)
socket.sendto(header, self.client_address)
while offset < total_size:
end = offset + buffer_size
end = end if end < total_size else total_size
socket.sendto(data[offset: end], self.client_address)
offset = end
return
class GameServer(UDPServer):
def __init__(self, server_address, handler_class=UDPHandler):
UDPServer.__init__(self, server_address, handler_class)
return
# how to use:
# args: index, please be consistent for your a3c agent thread index
# python game_server.py 0
if __name__ == "__main__":
host, port = "localhost", 9600
if len(sys.argv) > 1:
index = int(sys.argv[1])
port = port + index
print port
server = GameServer((host, port), UDPHandler)
server.serve_forever()