mirror of
https://github.com/italicsjenga/valence.git
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605 lines
23 KiB
Rust
605 lines
23 KiB
Rust
//! Dynamic actors in a world.
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pub mod state;
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pub mod types;
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use std::collections::hash_map::Entry;
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use std::collections::HashMap;
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use std::iter::FusedIterator;
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use std::num::NonZeroU32;
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use bitfield_struct::bitfield;
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use rayon::iter::ParallelIterator;
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pub use types::{EntityKind, EntityState};
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use uuid::Uuid;
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use vek::{Aabb, Vec3};
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use crate::config::Config;
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use crate::protocol_inner::packets::play::s2c::{
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AddEntity, AddExperienceOrb, AddPlayer, S2cPlayPacket, SetEntityMetadata,
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};
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use crate::protocol_inner::{ByteAngle, RawBytes, VarInt};
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use crate::slotmap::{Key, SlotMap};
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use crate::util::aabb_from_bottom_and_size;
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use crate::world::WorldId;
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use crate::STANDARD_TPS;
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/// A container for all [`Entity`]s on a [`Server`](crate::server::Server).
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///
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/// # Spawning Player Entities
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///
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/// [`Player`] entities are treated specially by the client. For the player
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/// entity to be visible to clients, the player's UUID must be added to the
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/// [`PlayerList`] _before_ being loaded by the client.
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///
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/// [`Player`]: crate::entity::types::Player
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/// [`PlayerList`]: crate::player_list::PlayerList
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pub struct Entities<C: Config> {
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sm: SlotMap<Entity<C>>,
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uuid_to_entity: HashMap<Uuid, EntityId>,
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network_id_to_entity: HashMap<NonZeroU32, u32>,
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}
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impl<C: Config> Entities<C> {
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pub(crate) fn new() -> Self {
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Self {
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sm: SlotMap::new(),
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uuid_to_entity: HashMap::new(),
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network_id_to_entity: HashMap::new(),
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}
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}
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/// Spawns a new entity with a random UUID. A reference to the entity along
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/// with its ID is returned.
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pub fn create(&mut self, kind: EntityKind, data: C::EntityData) -> (EntityId, &mut Entity<C>) {
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self.create_with_uuid(kind, Uuid::from_bytes(rand::random()), data)
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.expect("UUID collision")
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}
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/// Like [`Self::create`], but requires specifying the new
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/// entity's UUID.
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///
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/// The provided UUID must not conflict with an existing entity UUID. If it
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/// does, `None` is returned and the entity is not spawned.
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pub fn create_with_uuid(
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&mut self,
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kind: EntityKind,
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uuid: Uuid,
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data: C::EntityData,
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) -> Option<(EntityId, &mut Entity<C>)> {
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match self.uuid_to_entity.entry(uuid) {
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Entry::Occupied(_) => None,
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Entry::Vacant(ve) => {
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let (k, e) = self.sm.insert(Entity {
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data,
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state: EntityState::new(kind),
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flags: EntityFlags(0),
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world: WorldId::NULL,
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new_position: Vec3::default(),
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old_position: Vec3::default(),
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yaw: 0.0,
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pitch: 0.0,
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head_yaw: 0.0,
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velocity: Vec3::default(),
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uuid,
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});
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// TODO check for overflowing version?
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self.network_id_to_entity.insert(k.version(), k.index());
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ve.insert(EntityId(k));
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Some((EntityId(k), e))
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}
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}
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}
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/// Removes an entity from the server.
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///
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/// If the given entity ID is valid, `true` is returned and the entity is
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/// deleted. Otherwise, `false` is returned and the function has no effect.
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pub fn delete(&mut self, entity: EntityId) -> bool {
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if let Some(e) = self.sm.remove(entity.0) {
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self.uuid_to_entity
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.remove(&e.uuid)
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.expect("UUID should have been in UUID map");
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self.network_id_to_entity
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.remove(&entity.0.version())
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.expect("network ID should have been in the network ID map");
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true
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} else {
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false
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}
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}
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/// Removes all entities from the server for which `f` returns `true`.
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///
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/// All entities are visited in an unspecified order.
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pub fn retain(&mut self, mut f: impl FnMut(EntityId, &mut Entity<C>) -> bool) {
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self.sm.retain(|k, v| {
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if f(EntityId(k), v) {
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true
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} else {
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self.uuid_to_entity
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.remove(&v.uuid)
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.expect("UUID should have been in UUID map");
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self.network_id_to_entity
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.remove(&k.version())
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.expect("network ID should have been in the network ID map");
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false
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}
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});
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}
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/// Returns the number of entities in this container.
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pub fn count(&self) -> usize {
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self.sm.len()
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}
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/// Gets the [`EntityId`] of the entity with the given UUID in an efficient
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/// manner.
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///
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/// If there is no entity with the UUID, `None` is returned.
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pub fn get_with_uuid(&self, uuid: Uuid) -> Option<EntityId> {
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self.uuid_to_entity.get(&uuid).cloned()
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}
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/// Gets a shared reference to the entity with the given [`EntityId`].
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///
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/// If the ID is invalid, `None` is returned.
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pub fn get(&self, entity: EntityId) -> Option<&Entity<C>> {
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self.sm.get(entity.0)
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}
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/// Gets an exclusive reference to the entity with the given [`EntityId`].
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///
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/// If the ID is invalid, `None` is returned.
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pub fn get_mut(&mut self, entity: EntityId) -> Option<&mut Entity<C>> {
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self.sm.get_mut(entity.0)
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}
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pub(crate) fn get_with_network_id(&self, network_id: i32) -> Option<EntityId> {
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let version = NonZeroU32::new(network_id as u32)?;
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let index = *self.network_id_to_entity.get(&version)?;
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Some(EntityId(Key::new(index, version)))
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}
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/// Returns an immutable iterator over all entities on the server in an
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/// unspecified order.
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pub fn iter(&self) -> impl FusedIterator<Item = (EntityId, &Entity<C>)> + Clone + '_ {
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self.sm.iter().map(|(k, v)| (EntityId(k), v))
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}
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/// Returns a mutable iterator over all entities on the server in an
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/// unspecified order.
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pub fn iter_mut(&mut self) -> impl FusedIterator<Item = (EntityId, &mut Entity<C>)> + '_ {
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self.sm.iter_mut().map(|(k, v)| (EntityId(k), v))
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}
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/// Returns a parallel immutable iterator over all entities on the server in
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/// an unspecified order.
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pub fn par_iter(&self) -> impl ParallelIterator<Item = (EntityId, &Entity<C>)> + Clone + '_ {
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self.sm.par_iter().map(|(k, v)| (EntityId(k), v))
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}
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/// Returns a parallel mutable iterator over all clients on the server in an
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/// unspecified order.
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pub fn par_iter_mut(
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&mut self,
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) -> impl ParallelIterator<Item = (EntityId, &mut Entity<C>)> + '_ {
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self.sm.par_iter_mut().map(|(k, v)| (EntityId(k), v))
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}
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pub(crate) fn update(&mut self) {
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for (_, e) in self.iter_mut() {
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e.old_position = e.new_position;
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e.state.clear_modifications();
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e.flags.set_yaw_or_pitch_modified(false);
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e.flags.set_head_yaw_modified(false);
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e.flags.set_velocity_modified(false);
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}
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}
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}
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/// An identifier for an [`Entity`] on the server.
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///
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/// Entity IDs are either _valid_ or _invalid_. Valid entity IDs point to
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/// entities that have not been deleted, while invalid IDs point to those that
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/// have. Once an ID becomes invalid, it will never become valid again.
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///
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/// The [`Ord`] instance on this type is correct but otherwise unspecified. This
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/// is useful for storing IDs in containers such as
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/// [`BTreeMap`](std::collections::BTreeMap).
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#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default, Debug)]
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pub struct EntityId(Key);
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impl EntityId {
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/// The value of the default entity ID which is always invalid.
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pub const NULL: Self = Self(Key::NULL);
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pub(crate) fn to_network_id(self) -> i32 {
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self.0.version().get() as i32
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}
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}
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/// Represents an entity on the server.
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///
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/// In essence, an entity is anything in a world that isn't a block or client.
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/// Entities include paintings, falling blocks, zombies, fireballs, and more.
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///
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/// Every entity has common state which is accessible directly from
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/// this struct. This includes position, rotation, velocity, UUID, and hitbox.
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/// To access data that is not common to every kind of entity, see
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/// [`Self::data`].
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pub struct Entity<C: Config> {
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/// Custom data.
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pub data: C::EntityData,
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/// Kind-specific state for this entity.
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pub state: EntityState,
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flags: EntityFlags,
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world: WorldId,
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new_position: Vec3<f64>,
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old_position: Vec3<f64>,
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yaw: f32,
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pitch: f32,
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head_yaw: f32,
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velocity: Vec3<f32>,
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uuid: Uuid,
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}
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#[bitfield(u8)]
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pub(crate) struct EntityFlags {
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pub yaw_or_pitch_modified: bool,
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pub head_yaw_modified: bool,
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pub velocity_modified: bool,
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pub on_ground: bool,
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#[bits(4)]
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_pad: u8,
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}
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impl<C: Config> Entity<C> {
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pub(crate) fn flags(&self) -> EntityFlags {
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self.flags
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}
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/// Gets the [`EntityKind`] of this entity.
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pub fn kind(&self) -> EntityKind {
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self.state.kind()
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}
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/// Gets the [`WorldId`](crate::world::WorldId) of the world this entity is
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/// located in.
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///
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/// By default, entities are located in
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/// [`WorldId::NULL`](crate::world::WorldId::NULL).
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pub fn world(&self) -> WorldId {
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self.world
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}
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/// Sets the world this entity is located in.
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pub fn set_world(&mut self, world: WorldId) {
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self.world = world;
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}
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/// Gets the position of this entity in the world it inhabits.
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///
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/// The position of an entity is located on the botton of its
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/// hitbox and not the center.
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pub fn position(&self) -> Vec3<f64> {
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self.new_position
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}
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/// Sets the position of this entity in the world it inhabits.
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///
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/// The position of an entity is located on the botton of its
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/// hitbox and not the center.
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pub fn set_position(&mut self, pos: impl Into<Vec3<f64>>) {
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self.new_position = pos.into();
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}
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/// Returns the position of this entity as it existed at the end of the
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/// previous tick.
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pub(crate) fn old_position(&self) -> Vec3<f64> {
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self.old_position
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}
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/// Gets the yaw of this entity in degrees.
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pub fn yaw(&self) -> f32 {
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self.yaw
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}
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/// Sets the yaw of this entity in degrees.
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pub fn set_yaw(&mut self, yaw: f32) {
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if self.yaw != yaw {
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self.yaw = yaw;
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self.flags.set_yaw_or_pitch_modified(true);
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}
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}
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/// Gets the pitch of this entity in degrees.
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pub fn pitch(&self) -> f32 {
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self.pitch
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}
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/// Sets the pitch of this entity in degrees.
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pub fn set_pitch(&mut self, pitch: f32) {
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if self.pitch != pitch {
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self.pitch = pitch;
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self.flags.set_yaw_or_pitch_modified(true);
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}
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}
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/// Gets the head yaw of this entity in degrees.
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pub fn head_yaw(&self) -> f32 {
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self.head_yaw
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}
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/// Sets the head yaw of this entity in degrees.
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pub fn set_head_yaw(&mut self, head_yaw: f32) {
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if self.head_yaw != head_yaw {
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self.head_yaw = head_yaw;
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self.flags.set_head_yaw_modified(true);
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}
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}
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/// Gets the velocity of this entity in meters per second.
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pub fn velocity(&self) -> Vec3<f32> {
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self.velocity
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}
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/// Sets the velocity of this entity in meters per second.
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pub fn set_velocity(&mut self, velocity: impl Into<Vec3<f32>>) {
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let new_vel = velocity.into();
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if self.velocity != new_vel {
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self.velocity = new_vel;
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self.flags.set_velocity_modified(true);
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}
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}
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/// Gets the value of the "on ground" flag.
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pub fn on_ground(&self) -> bool {
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self.flags.on_ground()
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}
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/// Sets the value of the "on ground" flag.
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pub fn set_on_ground(&mut self, on_ground: bool) {
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self.flags.set_on_ground(on_ground);
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}
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/// Gets the UUID of this entity.
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pub fn uuid(&self) -> Uuid {
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self.uuid
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}
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/// Returns the hitbox of this entity.
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///
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/// The hitbox describes the space that an entity occupies. Clients interact
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/// with this space to create an [interact event].
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///
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/// The hitbox of an entity is determined by its position, entity type, and
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/// other state specific to that type.
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///
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/// [interact event]: crate::client::Event::InteractWithEntity
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pub fn hitbox(&self) -> Aabb<f64> {
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let dims = match &self.state {
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EntityState::Allay(_) => [0.6, 0.35, 0.6],
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EntityState::ChestBoat(_) => [1.375, 0.5625, 1.375],
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EntityState::Frog(_) => [0.5, 0.5, 0.5],
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EntityState::Tadpole(_) => [0.4, 0.3, 0.4],
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EntityState::Warden(_) => [0.9, 2.9, 0.9],
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EntityState::AreaEffectCloud(e) => [
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e.get_radius() as f64 * 2.0,
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0.5,
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e.get_radius() as f64 * 2.0,
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],
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EntityState::ArmorStand(e) => {
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if e.get_marker() {
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[0.0, 0.0, 0.0]
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} else if e.get_small() {
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[0.5, 0.9875, 0.5]
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} else {
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[0.5, 1.975, 0.5]
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}
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}
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EntityState::Arrow(_) => [0.5, 0.5, 0.5],
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EntityState::Axolotl(_) => [1.3, 0.6, 1.3],
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EntityState::Bat(_) => [0.5, 0.9, 0.5],
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EntityState::Bee(_) => [0.7, 0.6, 0.7], // TODO: baby size?
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EntityState::Blaze(_) => [0.6, 1.8, 0.6],
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EntityState::Boat(_) => [1.375, 0.5625, 1.375],
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EntityState::Cat(_) => [0.6, 0.7, 0.6],
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EntityState::CaveSpider(_) => [0.7, 0.5, 0.7],
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EntityState::Chicken(_) => [0.4, 0.7, 0.4], // TODO: baby size?
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EntityState::Cod(_) => [0.5, 0.3, 0.5],
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EntityState::Cow(_) => [0.9, 1.4, 0.9], // TODO: baby size?
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EntityState::Creeper(_) => [0.6, 1.7, 0.6],
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EntityState::Dolphin(_) => [0.9, 0.6, 0.9],
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EntityState::Donkey(_) => [1.5, 1.39648, 1.5], // TODO: baby size?
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EntityState::DragonFireball(_) => [1.0, 1.0, 1.0],
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EntityState::Drowned(_) => [0.6, 1.95, 0.6], // TODO: baby size?
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EntityState::ElderGuardian(_) => [1.9975, 1.9975, 1.9975],
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EntityState::EndCrystal(_) => [2.0, 2.0, 2.0],
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EntityState::EnderDragon(_) => [16.0, 8.0, 16.0],
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EntityState::Enderman(_) => [0.6, 2.9, 0.6],
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EntityState::Endermite(_) => [0.4, 0.3, 0.4],
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EntityState::Evoker(_) => [0.6, 1.95, 0.6],
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EntityState::EvokerFangs(_) => [0.5, 0.8, 0.5],
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EntityState::ExperienceOrb(_) => [0.5, 0.5, 0.5],
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EntityState::EyeOfEnder(_) => [0.25, 0.25, 0.25],
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EntityState::FallingBlock(_) => [0.98, 0.98, 0.98],
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EntityState::FireworkRocket(_) => [0.25, 0.25, 0.25],
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EntityState::Fox(_) => [0.6, 0.7, 0.6], // TODO: baby size?
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EntityState::Ghast(_) => [4.0, 4.0, 4.0],
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EntityState::Giant(_) => [3.6, 12.0, 3.6],
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EntityState::GlowItemFrame(_) => todo!("account for rotation"),
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EntityState::GlowSquid(_) => [0.8, 0.8, 0.8],
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EntityState::Goat(_) => [1.3, 0.9, 1.3], // TODO: baby size?
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EntityState::Guardian(_) => [0.85, 0.85, 0.85],
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EntityState::Hoglin(_) => [1.39648, 1.4, 1.39648], // TODO: baby size?
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EntityState::Horse(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
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EntityState::Husk(_) => [0.6, 1.95, 0.6], // TODO: baby size?
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EntityState::Illusioner(_) => [0.6, 1.95, 0.6],
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EntityState::IronGolem(_) => [1.4, 2.7, 1.4],
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EntityState::Item(_) => [0.25, 0.25, 0.25],
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EntityState::ItemFrame(_) => todo!("account for rotation"),
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EntityState::Fireball(_) => [1.0, 1.0, 1.0],
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EntityState::LeashKnot(_) => [0.375, 0.5, 0.375],
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EntityState::LightningBolt(_) => [0.0, 0.0, 0.0],
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EntityState::Llama(_) => [0.9, 1.87, 0.9], // TODO: baby size?
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EntityState::LlamaSpit(_) => [0.25, 0.25, 0.25],
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EntityState::MagmaCube(e) => {
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let s = e.get_size() as f64 * 0.51000005;
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[s, s, s]
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}
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EntityState::Marker(_) => [0.0, 0.0, 0.0],
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EntityState::Minecart(_) => [0.98, 0.7, 0.98],
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EntityState::ChestMinecart(_) => [0.98, 0.7, 0.98],
|
|
EntityState::CommandBlockMinecart(_) => [0.98, 0.7, 0.98],
|
|
EntityState::FurnaceMinecart(_) => [0.98, 0.7, 0.98],
|
|
EntityState::HopperMinecart(_) => [0.98, 0.7, 0.98],
|
|
EntityState::SpawnerMinecart(_) => [0.98, 0.7, 0.98],
|
|
EntityState::TntMinecart(_) => [0.98, 0.7, 0.98],
|
|
EntityState::Mule(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
EntityState::Mooshroom(_) => [0.9, 1.4, 0.9], // TODO: baby size?
|
|
EntityState::Ocelot(_) => [0.6, 0.7, 0.6], // TODO: baby size?
|
|
EntityState::Painting(_) => todo!("account for rotation and type"),
|
|
EntityState::Panda(_) => [0.6, 0.7, 0.6], // TODO: baby size?
|
|
EntityState::Parrot(_) => [0.5, 0.9, 0.5],
|
|
EntityState::Phantom(_) => [0.9, 0.5, 0.9],
|
|
EntityState::Pig(_) => [0.9, 0.9, 0.9], // TODO: baby size?
|
|
EntityState::Piglin(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
EntityState::PiglinBrute(_) => [0.6, 1.95, 0.6],
|
|
EntityState::Pillager(_) => [0.6, 1.95, 0.6],
|
|
EntityState::PolarBear(_) => [1.4, 1.4, 1.4], // TODO: baby size?
|
|
EntityState::Tnt(_) => [0.98, 0.98, 0.98],
|
|
EntityState::Pufferfish(_) => [0.7, 0.7, 0.7],
|
|
EntityState::Rabbit(_) => [0.4, 0.5, 0.4], // TODO: baby size?
|
|
EntityState::Ravager(_) => [1.95, 2.2, 1.95],
|
|
EntityState::Salmon(_) => [0.7, 0.4, 0.7],
|
|
EntityState::Sheep(_) => [0.9, 1.3, 0.9], // TODO: baby size?
|
|
EntityState::Shulker(_) => [1.0, 1.0, 1.0], // TODO: how is height calculated?
|
|
EntityState::ShulkerBullet(_) => [0.3125, 0.3125, 0.3125],
|
|
EntityState::Silverfish(_) => [0.4, 0.3, 0.4],
|
|
EntityState::Skeleton(_) => [0.6, 1.99, 0.6],
|
|
EntityState::SkeletonHorse(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
EntityState::Slime(e) => {
|
|
let s = 0.51000005 * e.get_size() as f64;
|
|
[s, s, s]
|
|
}
|
|
EntityState::SmallFireball(_) => [0.3125, 0.3125, 0.3125],
|
|
EntityState::SnowGolem(_) => [0.7, 1.9, 0.7],
|
|
EntityState::Snowball(_) => [0.25, 0.25, 0.25],
|
|
EntityState::SpectralArrow(_) => [0.5, 0.5, 0.5],
|
|
EntityState::Spider(_) => [1.4, 0.9, 1.4],
|
|
EntityState::Squid(_) => [0.8, 0.8, 0.8],
|
|
EntityState::Stray(_) => [0.6, 1.99, 0.6],
|
|
EntityState::Strider(_) => [0.9, 1.7, 0.9], // TODO: baby size?
|
|
EntityState::Egg(_) => [0.25, 0.25, 0.25],
|
|
EntityState::EnderPearl(_) => [0.25, 0.25, 0.25],
|
|
EntityState::ExperienceBottle(_) => [0.25, 0.25, 0.25],
|
|
EntityState::Potion(_) => [0.25, 0.25, 0.25],
|
|
EntityState::Trident(_) => [0.5, 0.5, 0.5],
|
|
EntityState::TraderLlama(_) => [0.9, 1.87, 0.9],
|
|
EntityState::TropicalFish(_) => [0.5, 0.4, 0.5],
|
|
EntityState::Turtle(_) => [1.2, 0.4, 1.2], // TODO: baby size?
|
|
EntityState::Vex(_) => [0.4, 0.8, 0.4],
|
|
EntityState::Villager(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
EntityState::Vindicator(_) => [0.6, 1.95, 0.6],
|
|
EntityState::WanderingTrader(_) => [0.6, 1.95, 0.6],
|
|
EntityState::Witch(_) => [0.6, 1.95, 0.6],
|
|
EntityState::Wither(_) => [0.9, 3.5, 0.9],
|
|
EntityState::WitherSkeleton(_) => [0.7, 2.4, 0.7],
|
|
EntityState::WitherSkull(_) => [0.3125, 0.3125, 0.3125],
|
|
EntityState::Wolf(_) => [0.6, 0.85, 0.6], // TODO: baby size?
|
|
EntityState::Zoglin(_) => [1.39648, 1.4, 1.39648], // TODO: baby size?
|
|
EntityState::Zombie(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
EntityState::ZombieHorse(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
EntityState::ZombieVillager(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
EntityState::ZombifiedPiglin(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
EntityState::Player(_) => [0.6, 1.8, 0.6], // TODO: changes depending on the pose.
|
|
EntityState::FishingBobber(_) => [0.25, 0.25, 0.25],
|
|
};
|
|
|
|
aabb_from_bottom_and_size(self.new_position, dims.into())
|
|
}
|
|
|
|
/// Gets the metadata packet to send to clients after this entity has been
|
|
/// spawned.
|
|
///
|
|
/// Is `None` if there is no initial metadata.
|
|
pub(crate) fn initial_metadata_packet(&self, this_id: EntityId) -> Option<SetEntityMetadata> {
|
|
self.state.initial_metadata().map(|meta| SetEntityMetadata {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
metadata: RawBytes(meta),
|
|
})
|
|
}
|
|
|
|
/// Gets the metadata packet to send to clients when the entity is modified.
|
|
///
|
|
/// Is `None` if this entity's metadata has not been modified.
|
|
pub(crate) fn updated_metadata_packet(&self, this_id: EntityId) -> Option<SetEntityMetadata> {
|
|
self.state.updated_metadata().map(|meta| SetEntityMetadata {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
metadata: RawBytes(meta),
|
|
})
|
|
}
|
|
|
|
pub(crate) fn spawn_packet(&self, this_id: EntityId) -> Option<EntitySpawnPacket> {
|
|
match &self.state {
|
|
EntityState::Marker(_) => None,
|
|
EntityState::ExperienceOrb(_) => {
|
|
Some(EntitySpawnPacket::ExperienceOrb(AddExperienceOrb {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
position: self.new_position,
|
|
count: 0, // TODO
|
|
}))
|
|
}
|
|
EntityState::Player(_) => Some(EntitySpawnPacket::Player(AddPlayer {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
player_uuid: self.uuid,
|
|
position: self.new_position,
|
|
yaw: ByteAngle::from_degrees(self.yaw),
|
|
pitch: ByteAngle::from_degrees(self.pitch),
|
|
})),
|
|
_ => Some(EntitySpawnPacket::Entity(AddEntity {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
object_uuid: self.uuid,
|
|
kind: VarInt(self.kind() as i32),
|
|
position: self.new_position,
|
|
pitch: ByteAngle::from_degrees(self.pitch),
|
|
yaw: ByteAngle::from_degrees(self.yaw),
|
|
head_yaw: ByteAngle::from_degrees(self.head_yaw),
|
|
data: VarInt(1), // TODO
|
|
velocity: velocity_to_packet_units(self.velocity),
|
|
})),
|
|
}
|
|
}
|
|
}
|
|
|
|
pub(crate) fn velocity_to_packet_units(vel: Vec3<f32>) -> Vec3<i16> {
|
|
// The saturating cast to i16 is desirable.
|
|
(8000.0 / STANDARD_TPS as f32 * vel).as_()
|
|
}
|
|
|
|
pub(crate) enum EntitySpawnPacket {
|
|
Entity(AddEntity),
|
|
ExperienceOrb(AddExperienceOrb),
|
|
Player(AddPlayer),
|
|
}
|
|
|
|
impl From<EntitySpawnPacket> for S2cPlayPacket {
|
|
fn from(pkt: EntitySpawnPacket) -> Self {
|
|
match pkt {
|
|
EntitySpawnPacket::Entity(pkt) => pkt.into(),
|
|
EntitySpawnPacket::ExperienceOrb(pkt) => pkt.into(),
|
|
EntitySpawnPacket::Player(pkt) => pkt.into(),
|
|
}
|
|
}
|
|
}
|