Struct myelin_engine::simulation::SimulationImpl

pub struct SimulationImpl<T> { /* fields omitted */ }

Implementation of Simulation that uses a physical World in order to apply physics to objects.

Methods

impl<T> SimulationImpl<T> where
    T: AssociatedObjectData, 

pub fn new(
    world: Box<dyn World>,
    world_interactor_factory_fn: Box<WorldInteractorFactoryFn<T>>,
    instant_wrapper_factory_fn: Box<InstantWrapperFactoryFn>
) -> Self

Create a new SimulationImpl by injecting a World

Examples

use myelin_engine::prelude::*;
use myelin_engine::simulation::time::InstantWrapperImpl;
use myelin_engine::simulation::world::NphysicsWorld;
use myelin_engine::simulation::SimulationImpl;
use myelin_engine::world_interactor::WorldInteractorImpl;
use std::sync::{Arc, RwLock};
use std::time::Instant;

let world = Box::new(NphysicsWorld::with_timestep(1.0));
let simulation = SimulationImpl::<()>::new(
    world,
    Box::new(|simulation, id| Box::new(WorldInteractorImpl::new(simulation, id))),
    Box::new(|| Box::new(InstantWrapperImpl::new(Instant::now()))),
);

Trait Implementations

impl<T> Simulation<T> for SimulationImpl<T> where
    T: AssociatedObjectData, 

fn step(&mut self)

Advance the simulation by one tick. This will apply forces to the objects, handle collisions and allow them to take action.

fn add_object(
    &mut self,
    object_description: ObjectDescription<T>,
    object_behavior: Box<dyn ObjectBehavior<T>>
) -> Object<T>

Add a new object to the world.

fn objects(&self) -> Snapshot<T>

Returns a read-only description of all objects currently inhabiting the simulation.

fn object(&self, id: Id) -> Option<Object<T>>

Returns a read-only description an object, if the provided ID is valid.

fn set_simulated_timestep(&mut self, timestep: f64)

Sets how much time in seconds is simulated for each step. # Examples If you want to run a simulation with 60 steps per second, you can run set_simulated_timestep(1.0/60.0). Note that this method does not block the thread if called faster than expected.

fn objects_in_area(&self, area: Aabb) -> Snapshot<T>

Returns read-only descriptions for all objects either completely contained or intersecting with the given area.

fn objects_in_polygon(&self, area: &Polygon) -> Snapshot<T>

Returns read-only descriptions for all objects either completely contained or intersecting with the given area.

fn objects_in_ray(&self, origin: Point, direction: Vector) -> Snapshot<T>

Returns read-only descriptions for all objects intersecting with the given vector.

impl<T> Interactable<T> for SimulationImpl<T> where
    T: AssociatedObjectData, 

fn objects_in_area(&self, area: Aabb) -> Snapshot<T>

Returns read-only descriptions for all objects either completely contained or intersecting with the given area.

fn objects_in_polygon(&self, area: &Polygon) -> Snapshot<T>

Returns read-only descriptions for all objects either completely contained or intersecting with the given area.

fn objects_in_ray(&self, origin: Point, direction: Vector) -> Snapshot<T>

Returns read-only descriptions for all objects intersecting with the given vector.

fn elapsed_time_in_update(&self) -> Duration

Returns the amount of time that passed since the last call to the step function of Simulation

fn object(&self, id: Id) -> Option<Object<T>>

Returns an object, if the specified ID is valid

impl<T> Debug for SimulationImpl<T> where
    T: Debug, 

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.