krabmaga 0.6.1

A modern developing art for reliable and efficient Agent-based Model (ABM) simulation with the Rust language.
Documentation 
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#[cfg(test)]

static mut _COUNT: u128 = 0;
static _STEP: u128 = 10;
#[cfg(any(feature = "parallel"))]
static _NUM_AGENT: u32 = 10;

#[cfg(any(feature = "parallel"))]
use {
    crate::model::flockers::{bird::*, state::*},
    krabmaga::engine::location::Real2D,
    // krabmaga::engine::schedule::Schedule,
    krabmaga::engine::state::State,
    rand::Rng,
};

// #[cfg(any(feature = "parallel"))]
// #[test]
// pub fn field_2d_single_step() {
//     let mut state = Flocker::new((WIDTH, HEIGHT), NUM_AGENT);
//     let mut schedule: Schedule = Schedule::with_threads(2);

//     state.init(&mut schedule);
//     schedule.step(&mut state);
//     state.update(1);

//     let v = state.field1.num_objects();
//     assert_eq!(NUM_AGENT as usize, v);

//     let vec = state
//         .field1
//         .get_neighbors_within_distance(Real2D { x: 5.0, y: 5.0 }, 10.0);

//     assert_eq!(NUM_AGENT as usize, vec.len());
// }

#[cfg(any(feature = "parallel"))]
#[test]
fn field_2d_neighbors() {
    let mut state = Flocker::new((WIDTH, HEIGHT), 2);

    let last_d = Real2D { x: 0.0, y: 0.0 };

    let mut bird1 = Bird::new(1, Real2D { x: 0.0, y: 0.0 }, last_d);
    let bird2 = Bird::new(2, Real2D { x: 0.0, y: 0.0 }, last_d);

    state.field1.set_object_location(bird1, bird1.pos);
    state.field1.set_object_location(bird2, bird2.pos);

    state.update(0);

    let v = state.field1.num_objects();
    assert_eq!(2, v);

    let vec = state
        .field1
        .get_neighbors_within_distance(Real2D { x: 5.0, y: 5.0 }, 1.0);
    assert_eq!(0, vec.len());
    let vec = state
        .field1
        .get_neighbors_within_relax_distance(Real2D { x: 5.0, y: 5.0 }, 1.0);
    assert_eq!(0, vec.len());

    let mut rng = rand::rng();

    let fly: f32 = rng.random_range(5..10) as f32;

    bird1.pos = Real2D {
        x: bird1.pos.x + fly,
        y: bird1.pos.y + fly,
    };

    state.field1.set_object_location(bird1, bird1.pos);
    state.field1.set_object_location(bird2, bird2.pos);

    state.update(0);

    let vec = state.field1.get_neighbors_within_distance(bird1.pos, 1.0);
    assert_eq!(1, vec.len());
    assert!(vec.contains(&bird1));
    let vec = state.field1.get_neighbors_within_distance(bird2.pos, 1.0);
    assert_eq!(1, vec.len());
    assert!(vec.contains(&bird2));

    let vec = state
        .field1
        .get_neighbors_within_distance(Real2D { x: 5.0, y: 5.0 }, 10.0);
    assert_eq!(2, vec.len());
    assert!(vec.contains(&bird1));
    assert!(vec.contains(&bird2));

    let vec = state
        .field1
        .get_neighbors_within_relax_distance(Real2D { x: 5.0, y: 5.0 }, 10.0);
    assert_eq!(2, vec.len());
    assert!(vec.contains(&bird1));
    assert!(vec.contains(&bird2));
}

#[cfg(any(feature = "parallel"))]
#[test]
fn field_2d_gets() {
    let mut state = Flocker::new((WIDTH, HEIGHT), 2);

    let last_d = Real2D { x: 0.0, y: 0.0 };

    let bird1 = Bird::new(1, Real2D { x: 0.0, y: 0.0 }, last_d);
    let bird2 = Bird::new(2, Real2D { x: 5.0, y: 5.0 }, last_d);
    let bird3 = Bird::new(3, Real2D { x: 5.0, y: 5.0 }, last_d);

    state.field1.set_object_location(bird1, bird1.pos);
    state.field1.set_object_location(bird2, bird2.pos);
    state.field1.set_object_location(bird3, bird3.pos);

    state.update(0);

    let v = state.field1.num_objects();
    assert_eq!(3, v);

    let birds = state.field1.get_objects(Real2D { x: 5.0, y: 5.0 });
    assert_eq!(2, birds.len());
    assert!(birds.contains(&&bird2));
    assert!(birds.contains(&&bird3));

    let no_birds = state.field1.get_objects(Real2D { x: 10.0, y: 0.0 });
    assert_eq!(0, no_birds.len());

    let mut num_birds = state
        .field1
        .num_objects_at_location(Real2D { x: 5.0, y: 5.0 });
    assert_eq!(2, num_birds);

    num_birds = state
        .field1
        .num_objects_at_location(Real2D { x: 0.0, y: 0.0 });
    assert_eq!(1, num_birds);

    let bird = state.field1.get(&bird1);
    assert!(None != bird);
    assert_eq!(bird.unwrap().id, 1);

    let loc = Real2D { x: 1.0, y: 2.0 };
    state.field1.set_object_location(bird1, loc);
    state.update(1);

    let get_loc = state.field1.get_location(bird1.clone());
    assert!(None != get_loc);
    let get_loc = get_loc.unwrap();
    assert_eq!(get_loc.x, loc.x);
    assert_eq!(get_loc.y, loc.y);

    let bird4 = Bird::new(3, Real2D { x: 6.0, y: 6.0 }, last_d);
    state
        .field1
        .set_object_location(bird4, Real2D { x: 6.0, y: 6.0 });
    let get_loc = state.field1.get_location_unbuffered(bird4.clone());
    assert!(None != get_loc);
    let get_loc = get_loc.unwrap();
    assert_eq!(get_loc.x, 6.);
    assert_eq!(get_loc.y, 6.);
}