his project will demonstrate Robot to Robot messaging using a simple Scissors Paper Rock game

vex_scissors_paper_rock.py

# ---------------------------------------------------------------------------- #
#                                                                              #
# 	Module:       main.py                                                      #
# 	Author:       dougy lee                                                    #
# 	Created:      2/7/2026, 8:53:10 AM                                         #
#                                                                              #
#   Project:      Scissors Paper Rock                                          #
# 	Description:  This project will demonstrate Robot to Robot messaging       #
#                 using a simple Scissors Paper Rock game                      #
#                                                                              #
# ---------------------------------------------------------------------------- #

# Library imports
from vex import *
from vex_globals import *

import random


# Robot should be defined by default
robot = Robot()

# Display identifier
robot.screen.print(robot.get_name())


# Define Scissors Paper Rock game
SCISSORS = 0
PAPER = 1
ROCK = 2

WIN = 3
LOSE = 4
DRAW = 5

def get_random_action():
    return random.choice([SCISSORS, PAPER, ROCK])

def print_action(action):
    if action == SCISSORS:
        print_on_screen("I choose Scissors")
    elif action == PAPER:
        print_on_screen("I choose Paper")
    elif action == ROCK:
        print_on_screen("I choose Rock")

def get_game_result(my_action, opponent_action):
    print(f"My Action: {my_action}, Opponent Action: {opponent_action}")
    
    if my_action == opponent_action:
        return DRAW
    
    if (my_action - opponent_action) % 3 == 2:
        return WIN
    else:
        return LOSE

def print_on_screen(text):
    robot.screen.clear_screen()
    robot.screen.set_cursor(5, 2)
    robot.screen.print(text)

def start_game():
    if robot.link.is_connected():
        robot.sound.play(CHIRP)
        print_on_screen("Scissors")
        robot.link.send_message("count", 1)
        wait(1000, MSEC)
        robot.sound.play(CHIRP)
        print_on_screen("Paper")        
        robot.link.send_message("count", 2)
        wait(1000, MSEC)
        robot.sound.play(CHIRP)
        print_on_screen("Rock")
        robot.link.send_message("count", 3)
        wait(1000, MSEC)
        
        action = get_random_action()
        print_action(action)

        robot.link.send_message("shoot", action)

def screen_pressed():
    robot.led.on(ALL_LEDS, GREEN)
    print(f"Screen pressed")
    print(f"Link Status: {robot.link.is_connected()}")
        
        

def screen_released():
    robot.led.off(ALL_LEDS)
    print(f"Screen released")
    print(f"Link Status: {robot.link.is_connected()}")

    start_game()


def handle_count(message, count):
    print(f"Message: {message}, Count: {count}")
    if count == 1:
        print_on_screen("Scissors")
    elif count == 2:
        print_on_screen("Paper")
    elif count == 3:
        print_on_screen("Rock")

def handle_shoot(message, action_opponent):
    print(f"Message: {message}, Action Received: {action_opponent}")
    action_mine = get_random_action()
    print_action(action_mine)

    wait(1000, MSEC)
    robot.link.send_message("shoot_answer", action_opponent, action_mine)

    result = get_game_result(action_mine, action_opponent)    
    handle_shoot_result(result)

def handle_shoot_result(result):
    if result == WIN:
        print_on_screen("I win")
    elif result == LOSE:
        print_on_screen("I lost")
    elif result == DRAW:
        print_on_screen("We drew")

def handle_shoot_answer(message, action_mine, action_opponent):
    print(f"Message: {message}, Action Received: {action_opponent}")
    result = get_game_result(action_mine, action_opponent)
    handle_shoot_result(result)


robot.screen.pressed(screen_pressed)
robot.screen.released(screen_released)