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client.py
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import json
import threading
import socket
class Client:
def __init__(self,
server_host,
server_port_tcp=1234,
server_port_udp=1234,
client_port_udp=1235):
"""
Create a game server client
"""
self.identifier = None
self.server_message = []
self.room_id = None
self.client_udp = ("0.0.0.0", client_port_udp)
self.lock = threading.Lock()
self.server_listener = SocketThread(self.client_udp,
self,
self.lock)
self.server_listener.start()
self.server_udp = (server_host, server_port_udp)
self.server_tcp = (server_host, server_port_tcp)
self.register()
def create_room(self, room_name=None):
"""
Create a new room on server
"""
message = json.dumps({"action": "create", "payload": room_name, "identifier": self.identifier})
self.sock_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock_tcp.connect(self.server_tcp)
self.sock_tcp.send(message.encode())
data = self.sock_tcp.recv(1024)
self.sock_tcp.close()
message = self.parse_data(data)
self.room_id = message
def join_room(self, room_id):
"""
Join an existing room
"""
self.room_id = room_id
message = json.dumps({"action": "join", "payload": room_id, "identifier": self.identifier})
self.sock_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock_tcp.connect(self.server_tcp)
self.sock_tcp.send(message.encode())
data = self.sock_tcp.recv(1024)
self.sock_tcp.close()
message = self.parse_data(data)
self.room_id = message
def autojoin(self):
"""
Join the first non-full room
"""
message = json.dumps({"action": "autojoin", "identifier": self.identifier})
self.sock_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock_tcp.connect(self.server_tcp)
self.sock_tcp.send(message.encode())
data = self.sock_tcp.recv(1024)
self.sock_tcp.close()
message = self.parse_data(data)
self.room_id = message
def leave_room(self):
"""
Leave the current room
"""
message = json.dumps({
"action": "leave",
"room_id": self.room_id,
"identifier": self.identifier
})
self.sock_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock_tcp.connect(self.server_tcp)
self.sock_tcp.send(message.encode())
data = self.sock_tcp.recv(1024)
self.sock_tcp.close()
message = self.parse_data(data)
def get_rooms(self):
"""
Get the list of remote rooms
"""
message = json.dumps({"action": "get_rooms", "identifier": self.identifier})
self.sock_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock_tcp.connect(self.server_tcp)
self.sock_tcp.send(message.encode())
data = self.sock_tcp.recv(1024)
self.sock_tcp.close()
message = self.parse_data(data)
return message
def send(self, message):
"""
Send data to all players in the same room
"""
message = json.dumps({
"action": "send",
"payload": {"message": message},
"room_id": self.room_id,
"identifier": self.identifier
})
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(message.encode(), self.server_udp)
def sendto(self, recipients, message):
"""
Send data to one or more player in room
"""
message = json.dumps({
"action": "sendto",
"payload": {
"recipients": recipients,
"message": message
},
"room_id": self.room_id,
"identifier": self.identifier
})
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(message.encode(), self.server_udp)
def register(self):
"""
Register the client to server and get a uniq identifier
"""
message = json.dumps({
"action": "register",
"payload": self.client_udp[1]
})
self.sock_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock_tcp.connect(self.server_tcp)
self.sock_tcp.send(message.encode())
data = self.sock_tcp.recv(1024)
self.sock_tcp.close()
message = self.parse_data(data)
self.identifier = message
def parse_data(self, data):
"""
Parse response from server
"""
try:
data = json.loads(data)
if data['success'] == "True":
return data['message']
else:
raise Exception(data['message'])
except ValueError:
print(data)
def get_messages(self):
"""
Get recieved messages from server
"""
message = self.server_message
self.server_message = []
return set(message)
class SocketThread(threading.Thread):
def __init__(self, addr, client, lock):
"""
Client udp connection
"""
threading.Thread.__init__(self)
self.client = client
self.lock = lock
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.bind(addr)
def run(self):
"""
Get responses from server
"""
while True:
data, addr = self.sock.recvfrom(1024)
self.lock.acquire()
try:
self.client.server_message.append(data)
finally:
self.lock.release()
def stop(self):
"""
Stop thread
"""
self.sock.close()
if __name__ == "__main__":
"""
Example with 3 clients
"""
# Register on server
client1 = Client("127.0.0.1", 1234, 1234, 1235)
client2 = Client("127.0.0.1", 1234, 1234, 1236)
client3 = Client("127.0.0.1", 1234, 1234, 1237)
print("Client 1 : %s" % client1.identifier)
print("Client 2 : %s" % client2.identifier)
print("Client 3 : %s" % client3.identifier)
# Create a room on server
client1.create_room("Test room")
print("Client1 create room %s" % client1.room_id)
# Get rooms list
rooms = client1.get_rooms()
selected_room = None
if rooms is not None and len(rooms) != 0:
for room in rooms:
print("Room %s (%d/%d)" % (room["name"], int(room["nb_players"]), int(room["capacity"])))
# Get first room for tests
selected_room = rooms[0]['id']
else:
print("No rooms")
# Join client 1 room
try:
client2.join_room(selected_room)
client3.autojoin()
except Exception as e:
print("Error : %s" % str(e))
print("Client 2 join %s" % client2.room_id)
print("Client 3 join %s" % client3.room_id)
# Main game loop
while True:
# Send message to room (any serializable data)
client1.send({"name": "John D.",
"message": "I'm just John Doe..."})
client2.sendto(client1.identifier, {"name": "Linus T.",
"message": "My name is Linus, and I am your God."})
client3.send({"name": "Richard S.",
"message": "I love emacs"})
# get server data (only client 3)
message = client1.get_messages()
if len(message) != 0:
for message in message:
message = json.loads(message)
sender, value = message.popitem()
print("%s say %s" % (value["name"], value["message"]))