client-udp-guessing-game.py

import logging
import socket
import struct
import random
import time
import sys

def readInt(sock):
    data, addr = sock.recvfrom(4)
    data = struct.unpack("!i", data)[0]
    return data, addr

def sendInt(sock, toSend, whereTo):
    sock.sendto(struct.pack("!i", toSend),
        whereTo)

def sendChar(sock, toSend, whereTo):
    sock.sendto(struct.pack("!c", toSend.encode('ascii')),
        whereTo)

def readChar(sock):
    data, addr = sock.recvfrom(1)
    data = struct.unpack("!c", data)[0].decode('ascii')
    return data, addr

def sendIntArray(sock, toSend, whereTo):
    sendInt(sock, len(toSend), whereTo)
    for value in toSend:
        sendInt(sock, value, whereTo)

def sendCharArray(sock, toSend, whereTo):
    sendInt(sock, len(toSend), whereTo)
    for value in toSend:
        sendChar(sock, value, whereTo)

def readIntArray(sock):
    buff = []
    length, addr = readInt(sock)
    for i in range(length):
        buff.append(readInt(sock)[0])
    return buff, addr

def readCharArray(sock):
    buff = ""
    length, addr = readInt(sock)
    for i in range(length):
        buff+=readChar(sock)[0]
    return buff, addr




toWhere = ("localhost", 19999)

with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

    min = 0
    top  = 1000
    guess = random.randint(min, top)
    response = ""
    while True:
        time.sleep(0.3)
        sendInt(sock, guess, toWhere)
        response, addr = readCharArray(sock)
        if response == "smaller":
            top = guess
        elif response == "bigger":
            min = guess
        else:
            print(response)
            break
        guess = random.randint(min, top)