[−]Trait piston::UpdateEvent

pub trait UpdateEvent {
    fn from_update_args(args: &UpdateArgs, old_event: &Self) -> Option<Self>;

    fn update<U, F>(&self, f: F) -> Option<U>
    where
        F: FnMut(&UpdateArgs) -> U;

    fn from_dt(dt: f64, old_event: &Self) -> Option<Self> { ... }

    fn update_args(&self) -> Option<UpdateArgs> { ... }
}

When the application state should be updated.

Required methods

fn from_update_args(args: &UpdateArgs, old_event: &Self) -> Option<Self>

Creates an update event.

fn update<U, F>(&self, f: F) -> Option<U> where
    F: FnMut(&UpdateArgs) -> U, 

Calls closure if this is an update event.

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Provided methods

fn from_dt(dt: f64, old_event: &Self) -> Option<Self>

Creates an update event with delta time.

fn update_args(&self) -> Option<UpdateArgs>

Returns update arguments.

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Implementors

impl UpdateEvent for Event

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