Trait WeightedChoose

pub trait WeightedChoose<Item>: Send + Sync {
    // Required methods
    fn choose_one(&mut self) -> Result<Item>;
    fn choose_multiple(&mut self, amount: usize) -> Result<Vec<Item>>;
    fn len(&self) -> usize;

    // Provided method
    fn is_empty(&self) -> bool { ... }
}

A common trait for weighted balance algorithm.

Required Methods

fn choose_one(&mut self) -> Result<Item>

The method will choose one item.

fn choose_multiple(&mut self, amount: usize) -> Result<Vec<Item>>

The method will choose multiple items.

Note

• Returns less than amount items if the weight_array is not enough.
• The returned items cannot be duplicated.

fn len(&self) -> usize

Returns the length of the weight_array.

Provided Methods

fn is_empty(&self) -> bool

Returns whether the weight_array is empty.

Implementors

impl<Item> WeightedChoose<Item> for RandomWeightedChoose<Item>

where Item: Clone + Send + Sync,