Struct ArcBallRotationSystem

pub struct ArcBallRotationSystem;

The system that manages the arc ball movement; In essence, the system will align the camera with its target while keeping the distance to it and while keeping the orientation of the camera.

To modify the orientation of the camera in accordance with the mouse input, please use the FreeRotationSystem.

Trait Implementations

impl Debug for ArcBallRotationSystem

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

Formats the value using the given formatter.

impl Default for ArcBallRotationSystem

fn default() -> ArcBallRotationSystem

Returns the “default value” for a type.

impl<'a> System<'a> for ArcBallRotationSystem

type SystemData = (Storage<'a, Transform, FetchMut<'a, MaskedStorage<Transform>>>, Storage<'a, ArcBallControlTag, Fetch<'a, MaskedStorage<ArcBallControlTag>>>)

The resource bundle required to execute this system.

fn run(&mut self, (transforms, tags): Self::SystemData)

Executes the system with the required system data.

fn running_time(&self) -> RunningTime

Returns a hint how long the system needs for running. This is used to optimize the way they’re executed (might allow more parallelization).

fn accessor<'b>(&'b self) -> AccessorCow<'a, 'b, Self>

Return the accessor from the SystemData.

fn setup(&mut self, world: &mut World)

Sets up the World using Self::SystemData::setup.

fn dispose(self, world: &mut World)

where Self: Sized,

Performs clean up that requires resources from the World. This commonly removes components from world which depend on external resources.