import random
def getDamage(abilityModifier, profBonus, dmgDice, greatWeaponFighting, greatWeaponMaster, improvedSmite, bonusDamge, enemyAc):
    toHit = random.randint(1,20)
    bonusDamage = 0
    if (toHit == 20):
        toHit = 1000
        bonusDamage = random.randint(1,dmgDice)
        if greatWeaponFighting and bonusDamage <= 2:
            bonusDamage = random.randint(1, dmgDice)
    if (toHit == 1):
        return 0
    toHit += abilityModifier + profBonus
    if greatWeaponMaster == 1:
        toHit -= 5
    if toHit < enemyAc:
        return 0


    damage = random.randint(1, dmgDice)
    if greatWeaponFighting and damage <= 2:
        damage = random.randint(1, dmgDice)
    damage += abilityModifier + bonusDamage
    if greatWeaponMaster:
        damage += 10
    if improvedSmite:
        damage += random.randint(1,8)
    damage += bonusDamage
    return damage

def getAverage(abilityModifier, profBonus, dmgDice, greatWeaponFighting, greatWeaponMaster, improvedSmite, bonusDamage, enemyAc):
    totalDamage = 0
    for i in range (0, 100000):
        totalDamage += getDamage(abilityModifier, profBonus, dmgDice, greatWeaponFighting, greatWeaponMaster, improvedSmite, bonusDamage, enemyAc)
    return totalDamage/100000

print(getAverage(4,4,10,1,1,1,3,13),getAverage(5,4,10,1,0,1,3,13) )