Serious-Engine/GameAgent/main.py

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Python
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2016-03-11 14:57:17 +01:00
#!/usr/bin/python -u
# GameAgent
import socket
import random
import struct
import time
import re
# global user/server arrays
servers = {}
players = {}
# load user thread
execfile("user.py")
execfile("server.py")
# listen on socket
sockListen = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sockListen.bind(("0.0.0.0", 9005))
print("Listening on UDP port 9005.")
def sendto(data, addr):
sockListen.sendto(data, addr)
# format address
def fmta(addr):
return addr[0] + ":" + str(addr[1])
def server_join(data, addr):
if(servers.has_key(fmta(addr))):
print("Join request from server already joined!")
print("Server join from " + fmta(addr))
s = Server()
s.addr = addr
s.join()
servers[fmta(addr)] = s
def server_challengeresponse(data, addr):
if(servers.has_key(fmta(addr))):
servers[fmta(addr)].challengeresponse(data)
else:
# server didn't join yet, make server join
server_join(data, addr)
def server_statechanged(data, addr):
if(servers.has_key(fmta(addr))):
if(servers[fmta(addr)].visible):
servers[fmta(addr)].statechanged(data)
else:
if(servers[fmta(addr)].prejoinactions > 5):
servers.pop(fmta(addr))
print("Server sent too many pre join actions, removing!")
else:
servers[fmta(addr)].prejoinactions += 1
else:
print("State change from server who didn't join yet!")
# server didn't join yet, make server join
server_join(data, addr)
def enum_trigger(data, addr):
p = Player()
p.addr = addr
buffer = "s"
topop = ""
for key in servers:
server = servers[key]
if(time.time() - server.lastheartbeat > 300):
# 5m have passed since last heartbeat
# server sends a heartbeat every 2.5 minutes
# we'll kick the server out because he's not doing this
print("Server " + fmta(server.addr) + " hasn't given a heartbeat since " + time.strftime("%c", time.gmtime(server.lastheartbeat)) + ", kicking!")
topop += key + ","
continue
if(not server.visible):
continue
if(len(buffer) + 6 > 1024):
sendto(buffer, addr)
buffer = "s"
parse = server.addr[0].split(".")
buffer += struct.pack("BBBBH", int(parse[0]), int(parse[1]), int(parse[2]), int(parse[3]), server.port)
sendto(buffer, addr)
for key in topop.split(","):
if(servers.has_key(key)):
servers.pop(key)
# masterserver main loop
while True:
data, addr = sockListen.recvfrom(1024)
packets = {
'q': server_join,
'0': server_challengeresponse,
'u': server_statechanged,
'e': enum_trigger,
}
packetID = data[0]
if(packets.has_key(packetID)):
packets[packetID](data[1:], addr)
else:
print("Packet from " + addr[0] + " denied because of unknown packet " + str(ord(packetID)))
# server died
print("Server shutting down.")