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//! Components and functionality shared across all mobs.

mod boss;

mod defensive;

mod hostile;

mod neutral;

mod passive;

pub use boss::*;

pub use defensive::*;

use feather_core::entitymeta::EntityMetadata;

use feather_core::network::packets::SpawnMob;

use feather_core::network::Packet;

use feather_core::util::Position;

use feather_server_types::{EntityId, SpawnPacketCreator, Uuid, Velocity};

use feather_server_util::{degrees_to_stops, protocol_velocity};

use fecs::{EntityBuilder, EntityRef};

pub use hostile::*;

pub use neutral::*;

pub use passive::*;

/// Enumeration of mob types. Note that this enum should not be

/// used in queries to identify mobs of a given type.

///

/// This is _not_ a component. It is only used for utility

/// functions such as `mob::spawn_packet_creator`.

///

/// https://wiki.vg/Entity_metadata#Mobs

#[derive(Copy, Clone, Debug, PartialEq, Eq)]

#[repr(i32)]

pub enum MobKind {

Bat = 3,

Blaze = 4,

CaveSpider = 6,

Chicken = 7,

Cod = 8,

Cow = 9,

Creeper = 10,

Donkey = 11,

Dolphin = 12,

Drowned = 14,

ElderGuardian = 15,

EnderDragon = 16,

Enderman = 18,

Endermite = 19,

EvocationIllager = 21,

Ghast = 26,

Giant = 27,

Guardian = 28,

Horse = 29,

Husk = 30,

IllusionIllager = 31,

Llama = 36,

MagmaCube = 38,

Mule = 46,

MushroomCow = 47,

Ocelot = 48,

Parrot = 50,

Pig = 51,

Pufferfish = 52,

PigZombie = 53,

PolarBear = 54,

Rabbit = 56,

Salmon = 57,

Sheep = 58,

Shulker = 59,

Silverfish = 61,

Skeleton = 62,

SkeletonHorse = 63,

Slime = 64,

SnowGolem = 66,

Spider = 69,

Squid = 70,

Stray = 71,

TropicalFish = 72,

Turtle = 73,

Vex = 78,

Villager = 79,

IronGolem = 80,

VindicationIllager = 81,

Witch = 82,

Wither = 83,

WitherSkeleton = 84,

Wolf = 86,

Zombie = 87,

ZombieHorse = 88,

ZombieVillager = 89,

Phantom = 90,

}

/// Returns the base components for a mob with the given

/// kind.

pub fn base(kind: MobKind) -> EntityBuilder {

super::base().with(spawn_packet_creator(kind))

}

/// Returns a `SpawnPacketCreator` for a mob with the given kind.

pub fn spawn_packet_creator(kind: MobKind) -> SpawnPacketCreator {

let f = Box::new(move |accessor: &EntityRef| {

let entity_id = accessor.get::<EntityId>().0;

let uuid = accessor

.try_get::<Uuid>()

.map(|r| *r)

.unwrap_or_else(Uuid::new_v4);

let position = *accessor.get::<Position>();

let velocity = *accessor.get::<Velocity>();

let meta = accessor

.try_get::<EntityMetadata>()

.map(|meta| (&*meta).clone())

.unwrap_or_else(EntityMetadata::entity_base);

let (velocity_x, velocity_y, velocity_z) = protocol_velocity(velocity.0);

let res: Box<dyn Packet> = Box::new(SpawnMob {

entity_id,

entity_uuid: uuid,

ty: kind as i32,

x: position.x,

y: position.y,

z: position.z,

yaw: degrees_to_stops(position.yaw),

pitch: degrees_to_stops(position.pitch),

head_pitch: 0, // todo

velocity_x,

velocity_y,

velocity_z,

meta,

});

res

});

SpawnPacketCreator(Box::leak(f))

}

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