Enum HeightProvider 

pub enum HeightProvider {
    Constant(VerticalAnchor),
    Uniform {
        min_inclusive: VerticalAnchor,
        max_inclusive: VerticalAnchor,
    },
    Trapezoid {
        min_inclusive: VerticalAnchor,
        max_inclusive: VerticalAnchor,
        plateau: i32,
    },
    BiasedToBottom {
        min_inclusive: VerticalAnchor,
        max_inclusive: VerticalAnchor,
        inner: i32,
    },
    VeryBiasedToBottom {
        min_inclusive: VerticalAnchor,
        max_inclusive: VerticalAnchor,
        inner: i32,
    },
}

An int-valued provider parameterised by world-generation bounds (min_y, height).

Mirrors vanilla’s HeightProvider hierarchy.

Variants

Constant(VerticalAnchor)

Always resolves to a fixed anchor.

Uniform

Uniform inclusive over [min, max].

Fields

min_inclusive: VerticalAnchor

Inclusive lower bound.

max_inclusive: VerticalAnchor

Inclusive upper bound.

Trapezoid

Sum of two next_i32_bounded draws — symmetric triangle when plateau == 0, trapezoid otherwise.

Fields

min_inclusive: VerticalAnchor

Inclusive lower bound.

max_inclusive: VerticalAnchor

Inclusive upper bound.

plateau: i32

Flat-top width; 0 gives a pure triangle.

BiasedToBottom

Biased toward the bottom: two nested nextInt draws.

Fields

min_inclusive: VerticalAnchor

Inclusive lower bound.

max_inclusive: VerticalAnchor

Inclusive upper bound.

inner: i32

Minimum span of the inner window (default 1).

VeryBiasedToBottom

Heavily biased toward the bottom: three nested nextInt draws.

Fields

min_inclusive: VerticalAnchor

Inclusive lower bound.

max_inclusive: VerticalAnchor

Inclusive upper bound.

inner: i32

Minimum span of the inner window (default 1).

Implementations

impl HeightProvider

pub fn sample<R: Random + ?Sized>( self, random: &mut R, min_y: i32, height: i32, ) -> i32

Sample a Y coordinate.

Matches vanilla’s HeightProvider.sample — including the “empty range returns min” fallback (vanilla logs a warning once; we silently fall back to min since this branch isn’t hit in practice).

Trait Implementations

impl Clone for HeightProvider

fn clone(&self) -> HeightProvider

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HeightProvider

impl Debug for HeightProvider

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HeightProvider

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.