Trait amethyst_rendy::batch::GroupIterator

pub trait GroupIterator<K, V> where
    Self: Iterator<Item = (K, V)> + Sized,
    K: PartialEq, {
    fn for_each_group<F>(self, on_group: F)
    where
        F: FnMut(K, &mut Vec<V>);
}

Iterator trait for grouping iterated 2-tuples (K, V) by contiguous ranges with equal K, providing access in a group-by-group manner.

Required methods

fn for_each_group<F>(self, on_group: F) where
    F: FnMut(K, &mut Vec<V>), 

Perform grouping. Evaluates passed closure on every next countiguous list of data with same group identifier.

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Implementors

impl<K, V, I> GroupIterator<K, V> for I where
    K: PartialEq,
    I: Iterator<Item = (K, V)>, 

fn for_each_group<F>(self, on_group: F) where
    F: FnMut(K, &mut Vec<V>), 

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