Struct noise::Cache

pub struct Cache<'a, Source: 'a> {
    pub source: &'a Source,
    // some fields omitted
}

Noise function that caches the last output value generated by the source function.

If the input coordinates passed to Cache::get are equal to the previous call, the function returns the cached result of the previous call to Source::get. Otherwise, Source::get is called with the new coordinates, overwriting the cache with the result, and returning the result to the caller.

Caching a noise function is useful if it is used as a source function for multiple noise functions. If a source function is not cached, the source function will redundantly calculate the same output value once for each noise function in which it is included.

Fields

source: &'a Source

Outputs the value to be cached.

Methods

impl<'a, Source> Cache<'a, Source>

pub fn new(source: &'a Source) -> Self

Trait Implementations

impl<'a, Source: Clone + 'a> Clone for Cache<'a, Source>

fn clone(&self) -> Cache<'a, Source>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, Source: Debug + 'a> Debug for Cache<'a, Source>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a, Source> NoiseFn<Point2<f64>> for Cache<'a, Source> where
    Source: NoiseFn<Point2<f64>>, 

fn get(&self, point: Point2<f64>) -> f64

impl<'a, Source> NoiseFn<Point3<f64>> for Cache<'a, Source> where
    Source: NoiseFn<Point3<f64>>, 

fn get(&self, point: Point3<f64>) -> f64

impl<'a, Source> NoiseFn<Point4<f64>> for Cache<'a, Source> where
    Source: NoiseFn<Point4<f64>>, 

fn get(&self, point: Point4<f64>) -> f64