bevy/crates/bevy_legion/tests/world_api.rs
2020-04-24 18:14:31 -07:00

550 lines
16 KiB
Rust

use legion::prelude::*;
use std::collections::HashSet;
#[derive(Clone, Copy, Debug, PartialEq)]
struct Pos(f32, f32, f32);
#[derive(Clone, Copy, Debug, PartialEq)]
struct Rot(f32, f32, f32);
#[derive(Clone, Copy, Debug, PartialEq)]
struct Scale(f32, f32, f32);
#[derive(Clone, Copy, Debug, PartialEq)]
struct Vel(f32, f32, f32);
#[derive(Clone, Copy, Debug, PartialEq)]
struct Accel(f32, f32, f32);
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
struct Model(u32);
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
struct Static;
#[test]
fn insert() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (1usize, 2f32, 3u16);
let components = vec![(4f32, 5u64, 6u16), (4f32, 5u64, 6u16)];
let entities = world.insert(shared, components);
assert_eq!(2, entities.len());
}
#[test]
fn get_component() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut entities: Vec<Entity> = Vec::new();
for e in world.insert(shared, components.clone()) {
entities.push(*e);
}
for (i, e) in entities.iter().enumerate() {
match world.get_component(*e) {
Some(x) => assert_eq!(components.get(i).map(|(x, _)| x), Some(&x as &Pos)),
None => assert_eq!(components.get(i).map(|(x, _)| x), None),
}
match world.get_component(*e) {
Some(x) => assert_eq!(components.get(i).map(|(_, x)| x), Some(&x as &Rot)),
None => assert_eq!(components.get(i).map(|(_, x)| x), None),
}
}
}
#[test]
fn get_component_wrong_type() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let entity = *world.insert((), vec![(0f64,)]).get(0).unwrap();
assert!(world.get_component::<i32>(entity).is_none());
}
#[test]
fn get_shared() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut entities: Vec<Entity> = Vec::new();
for e in world.insert(shared, components) {
entities.push(*e);
}
for e in entities.iter() {
assert_eq!(Some(&Static), world.get_tag(*e));
assert_eq!(Some(&Model(5)), world.get_tag(*e));
}
}
#[test]
fn get_shared_wrong_type() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let entity = *world.insert((Static,), vec![(0f64,)]).get(0).unwrap();
assert!(world.get_tag::<Model>(entity).is_none());
}
#[test]
fn delete() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut entities: Vec<Entity> = Vec::new();
for e in world.insert(shared, components) {
entities.push(*e);
}
for e in entities.iter() {
assert_eq!(true, world.is_alive(*e));
}
for e in entities.iter() {
world.delete(*e);
assert_eq!(false, world.is_alive(*e));
}
}
#[test]
fn delete_all() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut entities: Vec<Entity> = Vec::new();
for e in world.insert(shared, components) {
entities.push(*e);
}
// Check that the entity allocator knows about the entities
for e in entities.iter() {
assert_eq!(true, world.is_alive(*e));
}
// Check that the entities are in storage
let query = <(Read<Pos>, Read<Rot>)>::query();
assert_eq!(2, query.iter(&world).count());
world.delete_all();
// Check that the entity allocator no longer knows about the entities
for e in entities.iter() {
assert_eq!(false, world.is_alive(*e));
}
// Check that the entities are removed from storage
let query = <(Read<Pos>, Read<Rot>)>::query();
assert_eq!(0, query.iter(&world).count());
}
#[test]
fn delete_last() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut entities: Vec<Entity> = Vec::new();
for e in world.insert(shared, components.clone()) {
entities.push(*e);
}
let last = *entities.last().unwrap();
world.delete(last);
assert_eq!(false, world.is_alive(last));
for (i, e) in entities.iter().take(entities.len() - 1).enumerate() {
assert_eq!(true, world.is_alive(*e));
match world.get_component(*e) {
Some(x) => assert_eq!(components.get(i).map(|(x, _)| x), Some(&x as &Pos)),
None => assert_eq!(components.get(i).map(|(x, _)| x), None),
}
match world.get_component(*e) {
Some(x) => assert_eq!(components.get(i).map(|(_, x)| x), Some(&x as &Rot)),
None => assert_eq!(components.get(i).map(|(_, x)| x), None),
}
}
}
#[test]
fn delete_first() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut entities: Vec<Entity> = Vec::new();
for e in world.insert(shared, components.clone()) {
entities.push(*e);
}
let first = *entities.first().unwrap();
world.delete(first);
assert_eq!(false, world.is_alive(first));
for (i, e) in entities.iter().skip(1).enumerate() {
assert_eq!(true, world.is_alive(*e));
match world.get_component(*e) {
Some(x) => assert_eq!(components.get(i + 1).map(|(x, _)| x), Some(&x as &Pos)),
None => assert_eq!(components.get(i + 1).map(|(x, _)| x), None),
}
match world.get_component(*e) {
Some(x) => assert_eq!(components.get(i + 1).map(|(_, x)| x), Some(&x as &Rot)),
None => assert_eq!(components.get(i + 1).map(|(_, x)| x), None),
}
}
}
#[test]
fn merge() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world_1 = universe.create_world();
let mut world_2 = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut world_1_entities: Vec<Entity> = Vec::new();
for e in world_1.insert(shared, components.clone()) {
world_1_entities.push(*e);
}
let mut world_2_entities: Vec<Entity> = Vec::new();
for e in world_2.insert(shared, components.clone()) {
world_2_entities.push(*e);
}
world_1.merge(world_2);
for (i, e) in world_2_entities.iter().enumerate() {
assert!(world_1.is_alive(*e));
let (pos, rot) = components.get(i).unwrap();
assert_eq!(pos, &world_1.get_component(*e).unwrap() as &Pos);
assert_eq!(rot, &world_1.get_component(*e).unwrap() as &Rot);
}
}
#[test]
fn mutate_add_component() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let entities = world.insert(shared, components).to_vec();
let query_without_scale = <(Read<Pos>, Read<Rot>)>::query();
let query_with_scale = <(Read<Pos>, Read<Rot>, Read<Scale>)>::query();
assert_eq!(3, query_without_scale.iter(&world).count());
assert_eq!(0, query_with_scale.iter(&world).count());
world
.add_component(*entities.get(1).unwrap(), Scale(0.5, 0.5, 0.5))
.unwrap();
assert_eq!(3, query_without_scale.iter(&world).count());
assert_eq!(1, query_with_scale.iter(&world).count());
}
#[test]
fn mutate_remove_component() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Static, Model(5));
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let entities = world.insert(shared, components).to_vec();
let query_without_rot = Read::<Pos>::query().filter(!component::<Rot>());
let query_with_rot = <(Read<Pos>, Read<Rot>)>::query();
assert_eq!(0, query_without_rot.iter(&world).count());
assert_eq!(3, query_with_rot.iter(&world).count());
world
.remove_component::<Rot>(*entities.get(1).unwrap())
.unwrap();
assert_eq!(1, query_without_rot.iter(&world).count());
assert_eq!(2, query_with_rot.iter(&world).count());
}
#[test]
fn mutate_add_tag() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Model(5),);
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let entities = world.insert(shared, components).to_vec();
let query_without_static = <(Read<Pos>, Read<Rot>)>::query();
let query_with_static = <(Read<Pos>, Read<Rot>, Tagged<Static>)>::query();
assert_eq!(3, query_without_static.iter(&world).count());
assert_eq!(0, query_with_static.iter(&world).count());
world.add_tag(*entities.get(1).unwrap(), Static).unwrap();
assert_eq!(3, query_without_static.iter(&world).count());
assert_eq!(1, query_with_static.iter(&world).count());
}
#[test]
fn mutate_remove_tag() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Model(5), Static);
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let entities = world.insert(shared, components).to_vec();
let query_without_static = <(Read<Pos>, Read<Rot>)>::query().filter(!tag::<Static>());
let query_with_static = <(Read<Pos>, Read<Rot>, Tagged<Static>)>::query();
assert_eq!(0, query_without_static.iter(&world).count());
assert_eq!(3, query_with_static.iter(&world).count());
world
.remove_tag::<Static>(*entities.get(1).unwrap())
.unwrap();
assert_eq!(1, query_without_static.iter(&world).count());
assert_eq!(2, query_with_static.iter(&world).count());
}
#[test]
fn mutate_change_tag_minimum_test() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Model(5),);
let components = vec![(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3))];
let entities = world.insert(shared, components).to_vec();
tracing::trace!("STARTING CHANGE");
world.add_tag(entities[0], Model(3)).unwrap();
tracing::trace!("CHANGED\n");
assert_eq!(*world.get_tag::<Model>(entities[0]).unwrap(), Model(3));
}
#[test]
fn delete_entities_on_drop() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let (tx, rx) = crossbeam_channel::unbounded::<legion::event::Event>();
let shared = (Model(5),);
let components = vec![(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3))];
// Insert the data and store resulting entities in a HashSet
let mut entities = HashSet::new();
for entity in world.insert(shared, components) {
entities.insert(*entity);
}
world.subscribe(tx, legion::filter::filter_fns::any());
//ManuallyDrop::drop(&mut world);
std::mem::drop(world);
for e in rx.try_recv() {
match e {
legion::event::Event::EntityRemoved(entity, _chunk_id) => {
assert!(entities.remove(&entity));
}
_ => {}
}
}
// Verify that no extra entities are included
assert!(entities.is_empty());
}
#[test]
#[allow(clippy::suspicious_map)]
fn mutate_change_tag() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Model(5),);
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let entities = world.insert(shared, components).to_vec();
let query_model_3 = <(Read<Pos>, Read<Rot>)>::query().filter(tag_value(&Model(3)));
let query_model_5 = <(Read<Pos>, Read<Rot>)>::query().filter(tag_value(&Model(5)));
assert_eq!(3, query_model_5.iter(&world).count());
assert_eq!(0, query_model_3.iter(&world).count());
tracing::trace!("STARTING CHANGE");
world.add_tag(*entities.get(1).unwrap(), Model(3)).unwrap();
tracing::trace!("CHANGED\n");
assert_eq!(
1,
query_model_3
.iter_entities_mut(&mut world)
.map(|e| {
tracing::trace!("iter: {:?}", e);
e
})
.count()
);
assert_eq!(
*world.get_tag::<Model>(*entities.get(1).unwrap()).unwrap(),
Model(3)
);
assert_eq!(2, query_model_5.iter(&world).count());
}
// This test repeatedly creates a world with new entities and drops it, reproducing
// https://github.com/TomGillen/legion/issues/92
#[test]
fn lots_of_deletes() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
for _ in 0..10000 {
let shared = (Model(5),);
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
let mut world = universe.create_world();
world.insert(shared, components).to_vec();
}
}
#[test]
fn iter_entities() {
let _ = tracing_subscriber::fmt::try_init();
let universe = Universe::new();
let mut world = universe.create_world();
let shared = (Model(5),);
let components = vec![
(Pos(1., 2., 3.), Rot(0.1, 0.2, 0.3)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
(Pos(4., 5., 6.), Rot(0.4, 0.5, 0.6)),
];
// Insert the data and store resulting entities in a HashSet
let mut entities = HashSet::new();
for entity in world.insert(shared, components) {
entities.insert(*entity);
}
// Verify that all entities in iter_entities() are included
for entity in world.iter_entities() {
assert!(entities.remove(&entity));
}
// Verify that no extra entities are included
assert!(entities.is_empty());
}