Java 类net.minecraft.util.CombatRules 实例源码

/**
 * Changed copy of the second part from {@link EnchantmentHelper#applyEnchantmentModifier(EnchantmentHelper.IModifier, ItemStack)}
 */
public static float applyEnchantmentModifiers(ItemStack stack, DamageSource source, float damage) {
    int k = EnchantmentHelper.getEnchantmentModifierDamage(() -> Iterators.singletonIterator(stack), source);
    k *= 4;

    if (k > 0)
        damage = CombatRules.getDamageAfterMagicAbsorb(damage, (float) k);
    return damage;
}

/**
 * Reduces damage, depending on armor
 */
protected float applyArmorCalculations(DamageSource source, float damage)
{
    if (!source.isUnblockable())
    {
        this.damageArmor(damage);
        damage = CombatRules.getDamageAfterAbsorb(damage, (float)this.getTotalArmorValue(), (float)this.getEntityAttribute(SharedMonsterAttributes.ARMOR_TOUGHNESS).getAttributeValue());
    }

    return damage;
}

/**
 * Reduces damage, depending on potions
 */
protected float applyPotionDamageCalculations(DamageSource source, float damage)
{
    if (source.isDamageAbsolute())
    {
        return damage;
    }
    else
    {
        if (this.isPotionActive(MobEffects.RESISTANCE) && source != DamageSource.outOfWorld)
        {
            int i = (this.getActivePotionEffect(MobEffects.RESISTANCE).getAmplifier() + 1) * 5;
            int j = 25 - i;
            float f = damage * (float)j;
            damage = f / 25.0F;
        }

        if (damage <= 0.0F)
        {
            return 0.0F;
        }
        else
        {
            int k = EnchantmentHelper.getEnchantmentModifierDamage(this.getArmorInventoryList(), source);

            if (k > 0)
            {
                damage = CombatRules.getDamageAfterMagicAbsorb(damage, (float)k);
            }

            return damage;
        }
    }
}

/**
 * Reduces damage, depending on armor
 */
protected float applyArmorCalculations(DamageSource source, float damage)
{
    if (!source.isUnblockable())
    {
        this.damageArmor(damage);
        damage = CombatRules.getDamageAfterAbsorb(damage, (float)this.getTotalArmorValue(), (float)this.getEntityAttribute(SharedMonsterAttributes.ARMOR_TOUGHNESS).getAttributeValue());
    }

    return damage;
}

/**
 * Reduces damage, depending on potions
 */
protected float applyPotionDamageCalculations(DamageSource source, float damage)
{
    if (source.isDamageAbsolute())
    {
        return damage;
    }
    else
    {
        if (this.isPotionActive(MobEffects.RESISTANCE) && source != DamageSource.outOfWorld)
        {
            int i = (this.getActivePotionEffect(MobEffects.RESISTANCE).getAmplifier() + 1) * 5;
            int j = 25 - i;
            float f = damage * (float)j;
            damage = f / 25.0F;
        }

        if (damage <= 0.0F)
        {
            return 0.0F;
        }
        else
        {
            int k = EnchantmentHelper.getEnchantmentModifierDamage(this.getArmorInventoryList(), source);

            if (k > 0)
            {
                damage = CombatRules.getDamageAfterMagicAbsorb(damage, (float)k);
            }

            return damage;
        }
    }
}

/**
 * Reduces damage, depending on armor
 */
protected float applyArmorCalculations(DamageSource source, float damage)
{
    if (!source.isUnblockable())
    {
        this.damageArmor(damage);
        damage = CombatRules.getDamageAfterAbsorb(damage, (float)this.getTotalArmorValue(), (float)this.getEntityAttribute(SharedMonsterAttributes.ARMOR_TOUGHNESS).getAttributeValue());
    }

    return damage;
}

/**
 * Reduces damage, depending on potions
 */
protected float applyPotionDamageCalculations(DamageSource source, float damage)
{
    if (source.isDamageAbsolute())
    {
        return damage;
    }
    else
    {
        if (this.isPotionActive(MobEffects.RESISTANCE) && source != DamageSource.outOfWorld)
        {
            int i = (this.getActivePotionEffect(MobEffects.RESISTANCE).getAmplifier() + 1) * 5;
            int j = 25 - i;
            float f = damage * (float)j;
            damage = f / 25.0F;
        }

        if (damage <= 0.0F)
        {
            return 0.0F;
        }
        else
        {
            int k = EnchantmentHelper.getEnchantmentModifierDamage(this.getArmorInventoryList(), source);

            if (k > 0)
            {
                damage = CombatRules.getDamageAfterMagicAbsorb(damage, (float)k);
            }

            return damage;
        }
    }
}

public static float getDamageReduction(DamageSource source, EntityLivingBase living, float damage) {
    return CombatRules.getDamageAfterMagicAbsorb(
            CombatRules.getDamageAfterAbsorb(damage, living.getTotalArmorValue(),
                    (float) living.getEntityAttribute(SharedMonsterAttributes.ARMOR_TOUGHNESS).getAttributeValue()),
            EnchantmentHelper.getEnchantmentModifierDamage(living.getArmorInventoryList(), source));
}