specs-physics 0.3.0

nphysics integration for the Specs entity component system
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#[macro_use]
extern crate log;
extern crate simple_logger;

use specs::world::{Builder, World};
use specs_physics::{
    colliders::Shape,
    nalgebra::Isometry3,
    nphysics::{algebra::Velocity3, object::BodyStatus},
    physics_dispatcher,
    PhysicsBodyBuilder,
    PhysicsColliderBuilder,
    SimplePosition,
};

fn main() {
    // initialise the logger for system logs
    simple_logger::init().unwrap();

    // initialise the Specs world; this will contain our Resources and Entities
    let mut world = World::new();

    // create the dispatcher containing all relevant Systems; alternatively to using
    // the convenience function you can add all required Systems by hand
    let mut dispatcher = physics_dispatcher::<f32, SimplePosition<f32>>();
    dispatcher.setup(&mut world.res);

    // create an Entity containing the required Components; for this examples sake
    // we'll give the PhysicsBody a velocity
    let entity = world
        .create_entity()
        .with(SimplePosition::<f32>(Isometry3::<f32>::translation(
            1.0, 1.0, 1.0,
        )))
        .with(
            PhysicsBodyBuilder::<f32>::from(BodyStatus::Dynamic)
                .velocity(Velocity3::linear(1.0, 0.0, 0.0))
                .build(),
        )
        .with(PhysicsColliderBuilder::<f32>::from(Shape::Rectangle(1.0, 1.0, 1.0)).build())
        .build();

    // execute the dispatcher
    dispatcher.dispatch(&world.res);

    // fetch the SimpleTranslation component for the created Entity
    let pos_storage = world.read_storage::<SimplePosition<f32>>();
    let pos = pos_storage.get(entity).unwrap();

    info!("updated position: {}", pos.0.translation);
}