private static EntityDamageEvent callEntityDamageEvent(Entity damager, Entity damagee, DamageCause cause, Map<DamageModifier, Double> modifiers, Map<DamageModifier, Function<? super Double, Double>> modifierFunctions) {
    EntityDamageEvent event;
    if (damager != null) {
        event = new EntityDamageByEntityEvent(damager.getBukkitEntity(), damagee.getBukkitEntity(), cause, modifiers, modifierFunctions);
    } else {
        event = new EntityDamageEvent(damagee.getBukkitEntity(), cause, modifiers, modifierFunctions);
    }

    callEvent(event);

    if (!event.isCancelled()) {
        event.getEntity().setLastDamageCause(event);
    }

    return event;
}
 

public static EntityDamageEvent handleLivingEntityDamageEvent(Entity damagee, DamageSource source, double rawDamage, double hardHatModifier, double blockingModifier, double armorModifier, double resistanceModifier, double magicModifier, double absorptionModifier, Function<Double, Double> hardHat, Function<Double, Double> blocking, Function<Double, Double> armor, Function<Double, Double> resistance, Function<Double, Double> magic, Function<Double, Double> absorption) {
    Map<DamageModifier, Double> modifiers = new EnumMap<DamageModifier, Double>(DamageModifier.class);
    Map<DamageModifier, Function<? super Double, Double>> modifierFunctions = new EnumMap<DamageModifier, Function<? super Double, Double>>(DamageModifier.class);
    modifiers.put(DamageModifier.BASE, rawDamage);
    modifierFunctions.put(DamageModifier.BASE, ZERO);
    if (source == DamageSource.FALLING_BLOCK || source == DamageSource.ANVIL) {
        modifiers.put(DamageModifier.HARD_HAT, hardHatModifier);
        modifierFunctions.put(DamageModifier.HARD_HAT, hardHat);
    }
    if (damagee instanceof EntityPlayer) {
        modifiers.put(DamageModifier.BLOCKING, blockingModifier);
        modifierFunctions.put(DamageModifier.BLOCKING, blocking);
    }
    modifiers.put(DamageModifier.ARMOR, armorModifier);
    modifierFunctions.put(DamageModifier.ARMOR, armor);
    modifiers.put(DamageModifier.RESISTANCE, resistanceModifier);
    modifierFunctions.put(DamageModifier.RESISTANCE, resistance);
    modifiers.put(DamageModifier.MAGIC, magicModifier);
    modifierFunctions.put(DamageModifier.MAGIC, magic);
    modifiers.put(DamageModifier.ABSORPTION, absorptionModifier);
    modifierFunctions.put(DamageModifier.ABSORPTION, absorption);
    return handleEntityDamageEvent(damagee, source, modifiers, modifierFunctions);
}
 

public static boolean handleNonLivingEntityDamageEvent(Entity entity, DamageSource source, double damage, boolean cancelOnZeroDamage) {
    if (entity instanceof EntityEnderCrystal && !(source instanceof EntityDamageSource)) {
        return false;
    }

    final EnumMap<DamageModifier, Double> modifiers = new EnumMap<DamageModifier, Double>(DamageModifier.class);
    final EnumMap<DamageModifier, Function<? super Double, Double>> functions = new EnumMap(DamageModifier.class);

    modifiers.put(DamageModifier.BASE, damage);
    functions.put(DamageModifier.BASE, ZERO);

    final EntityDamageEvent event = handleEntityDamageEvent(entity, source, modifiers, functions);
    if (event == null) {
        return false;
    }
    return event.isCancelled() || (cancelOnZeroDamage && event.getDamage() == 0);
}
 

private static EntityDamageEvent callEntityDamageEvent(Entity damager, Entity damagee, DamageCause cause, Map<DamageModifier, Double> modifiers, Map<DamageModifier, Function<? super Double, Double>> modifierFunctions) {
    EntityDamageEvent event;
    if (damager != null) {
        event = new EntityDamageByEntityEvent(damager.getBukkitEntity(), damagee.getBukkitEntity(), cause, modifiers, modifierFunctions);
    } else {
        event = new EntityDamageEvent(damagee.getBukkitEntity(), cause, modifiers, modifierFunctions);
    }

    callEvent(event);

    if (!event.isCancelled()) {
        event.getEntity().setLastDamageCause(event);
    }

    return event;
}
 

public static EntityDamageEvent handleLivingEntityDamageEvent(Entity damagee, DamageSource source, double rawDamage, double hardHatModifier, double blockingModifier, double armorModifier, double resistanceModifier, double magicModifier, double absorptionModifier, Function<Double, Double> hardHat, Function<Double, Double> blocking, Function<Double, Double> armor, Function<Double, Double> resistance, Function<Double, Double> magic, Function<Double, Double> absorption) {
    Map<DamageModifier, Double> modifiers = new EnumMap<DamageModifier, Double>(DamageModifier.class);
    Map<DamageModifier, Function<? super Double, Double>> modifierFunctions = new EnumMap<DamageModifier, Function<? super Double, Double>>(DamageModifier.class);
    modifiers.put(DamageModifier.BASE, rawDamage);
    modifierFunctions.put(DamageModifier.BASE, ZERO);
    if (source == DamageSource.fallingBlock || source == DamageSource.anvil) {
        modifiers.put(DamageModifier.HARD_HAT, hardHatModifier);
        modifierFunctions.put(DamageModifier.HARD_HAT, hardHat);
    }
    if (damagee instanceof EntityPlayer) {
        modifiers.put(DamageModifier.BLOCKING, blockingModifier);
        modifierFunctions.put(DamageModifier.BLOCKING, blocking);
    }
    modifiers.put(DamageModifier.ARMOR, armorModifier);
    modifierFunctions.put(DamageModifier.ARMOR, armor);
    modifiers.put(DamageModifier.RESISTANCE, resistanceModifier);
    modifierFunctions.put(DamageModifier.RESISTANCE, resistance);
    modifiers.put(DamageModifier.MAGIC, magicModifier);
    modifierFunctions.put(DamageModifier.MAGIC, magic);
    modifiers.put(DamageModifier.ABSORPTION, absorptionModifier);
    modifierFunctions.put(DamageModifier.ABSORPTION, absorption);
    return handleEntityDamageEvent(damagee, source, modifiers, modifierFunctions);
}
 

public static boolean handleNonLivingEntityDamageEvent(Entity entity, DamageSource source, double damage) {
    if (entity instanceof EntityEnderCrystal && !(source instanceof EntityDamageSource)) {
        return false;
    }

    final EnumMap<DamageModifier, Double> modifiers = new EnumMap<DamageModifier, Double>(DamageModifier.class);
    final EnumMap<DamageModifier, Function<? super Double, Double>> functions = new EnumMap(DamageModifier.class);

    modifiers.put(DamageModifier.BASE, damage);
    functions.put(DamageModifier.BASE, ZERO);

    final EntityDamageEvent event = handleEntityDamageEvent(entity, source, modifiers, functions);
    if (event == null) {
        return false;
    }
    return event.isCancelled() || (event.getDamage() == 0 && !(entity instanceof EntityItemFrame)); // Cauldron - fix frame removal
}
 

@Override
public void effect(Event e, ItemStack item, int level) {
    if (e instanceof EntityDamageByEntityEvent) {
        EntityDamageByEntityEvent event = (EntityDamageByEntityEvent) e;
        LivingEntity target = (LivingEntity) event.getEntity();

        int armorCounter = 0;
        for (ItemStack piece : target.getEquipment().getArmorContents())
            if (!piece.getType().equals(Material.AIR))
                armorCounter++;

        if (armorCounter == 0)
            return;
        
        event.setDamage(DamageModifier.ARMOR, 0); //Completely remove effects of Armor
        target.getWorld().playEffect(target.getLocation(), Effect.ZOMBIE_DESTROY_DOOR, 10);
    }
}