import os, random
from os import system
from random import randint

#TODO filter out any non "C" or "F" player inputs
#TODO fix bug which means everything is considered a draw

# Constants

GAME_ROUND = 0
PLAYER_LIVES = 5
ENEMY_LIVES = 5
SPRITE = ""
MONSTER = "MONSTER"
ALIEN = "ALIEN"
ROUNDS = 5

# Global Variables

random_chance = randint(0,10)
sprite = SPRITE
monster = MONSTER
alien = ALIEN
game_round = GAME_ROUND
player_lives = PLAYER_LIVES
enemy_lives = ENEMY_LIVES
rounds = ROUNDS
game = True
enter = ""

# ASCII Art

alien_art = """
         _..._
       .'     '.
      / \     / \
     (  |     |  )
     (`"`  "  `"`)
      \         /
       \  ___  /

"""

monster_art = """

oo`'._..---.___..-
(_,-.        ,..'`
    `'.    ;
        : :`
        _;_;

"""

welcome_msg = """

Welcome to the game, you have 3 lives and will face either a monster or alien in 10 rounds. If you fight and lose
you will lose a life, while if you win the bad guy will lose a life. The first to reach 0 lives automatically loses.
If you survive until round 10 whoever has the most lives wins. Best of luck!

"""

def introduction(welcome_msg,space):

    print("MONSTERS AND ALIENS")
    print(welcome_msg)
    enter = input("Press ENTER to begin")

    if enter == "":
        os.system('cls' if os.name == 'nt' else 'clear')

    else:
        enter = input("Press ENTER to begin")

def choose_sprite(random_chance,sprite):

        if random_chance >= 5:
            sprite = monster

        elif random_chance <5:
            sprite = alien

        print("In this round you will fight the " + sprite)

        if sprite == monster:
            print(monster_art)

        elif sprite == alien:
            print(alien_art)

def fight(random_chance, player_lives,enemy_lives,sprite):

        player = input("Do you choose to fight (press F) or do you concede (press C)?:")

        if player.upper() == "F":
            print("You chose to fight, good luck.")

            if random_chance >= 5:
                print("")
                print("You defeated the "+sprite+", you gain 1 life")
                print("Current number of lives: ",player_lives)
                print("")
                player_lives += 1
                enemy_lives -= 1

            elif random_chance <5:
                print("")
                print("You were defeated by the "+sprite+", you lose 1 life")
                print("Current number of lives: ",player_lives)
                print("")
                player_lives -= 1
                enemy_lives += 1

        if player.upper() == "C":
            print("")
            print("You choose to concede, you lose one life")
            print("Lives = ",player_lives)
            print("")
            player_lives -= 1

def game_end():

    print("Your final score is", player_lives)

    if player_lives > enemy_lives:
        print("You win, congratulations! :-)")

    elif enemy_lives > player_lives:
        print("The enemy wins, better luck next time :-(")

    elif player_lives == enemy_lives:
        print("It was a draw, try again next time :-/")

    else:
        print("Unfortunately there was an error :-(")

def main():

    done = False

    while not done:
        introduction(welcome_msg,enter)

        for i in range(0,rounds):
            choose_sprite(random_chance,sprite)
            fight(random_chance, player_lives,enemy_lives,sprite)
            
            print("Random Debug Value: ",random_chance)

            next_round = input("Press ENTER to begin the next round")

            if next_round == "":
                os.system('cls' if os.name == 'nt' else 'clear')

            else:
                next_round = input("Press ENTER to begin the next round")

            if player_lives <= 0: done = True

            if enemy_lives <= 0: done = True

main()
game_end()