Пишем простую RPG на Clojure (https://www.youtube.com/watch?v=r0TWL5L7RE0)

rpg.py

from random import randint

def kill_negative(n):
    if n < 0:
        n = 0
    return n

def calc_attack(level):
    return level*6

def calc_defence(level):
    return int(level*1.4)

def calc_hitpoints(level):
    return level*20

def calc_base_damage(attack, defence):
    return kill_negative(attack - defence)

def roll_dice(slides):
    return randint(1, slides)

def calc_sides(level):
    if level > 5:
        return 100
    else:
        return 3

def create_character(name, lvl):
    character = {
        'name': name,
        'level': lvl,
        'attack': calc_attack(lvl),
        'defence': calc_defence(lvl),
        'hp': calc_hitpoints(lvl)
    }
    return character

def real_demage(base, sides):
    rd = roll_dice(sides)
    s = sides // 2
    if rd <= s:
        return int(base / 2)
    elif rd == sides:
        return base * 2
    else:
        return base

# from(character) + to(character)
# [damage(int), character]
def take_damage(from_char, to_char):
    bd = calc_base_damage(from_char['attack'], to_char['defence'])
    s = calc_sides(from_char['level'])
    rd = real_demage(bd, s)
    to_char['hp'] -= rd
    return (rd, to_char)


log_tamplate = "Character %s received %d damage.\nHis new life is %d"

def print_battle_log(damage, character):
    name = character['name']
    newhp = character['hp']
    print(log_tamplate % (name, damage, newhp))

def print_winner(p_hp, e_hp):
    if p_hp <= 0:
        print("Enemy won.")
    else:
        print("Player won.")

def game_logic(config):
    player = config['player']
    enemy = config['enemy']
    battle_round = 1
    while(True):
        if player['hp'] <= 0 or enemy['hp'] <= 0:
            print_winner(player['hp'], enemy['hp'])
            break
        print("Round: %d" % battle_round)
        pl2en = take_damage(player, enemy)
        en2pl = take_damage(enemy, player)
        print_battle_log(pl2en[0], pl2en[1])
        print_battle_log(en2pl[0], en2pl[1])
        player = en2pl[1]
        enemy = pl2en[1]
        battle_round += 1


player = create_character('Robert', 6)
troll = create_character('Troll', 2)
big_troll = create_character('Big Troll', 4)

config = {
    'player': player,
    'enemy': big_troll
}

print(player)
print(big_troll)

game_logic(config)