Trait UnitValue 

pub trait UnitValue: Copy + 'static {
    // Required methods
    fn zero() -> Self;
    fn one() -> Self;
    fn to_index(self) -> usize;
    fn from_time_frac(elapsed_ms: u32, duration_ms: u32) -> Self;
    fn to_time_offset(self, duration_ms: u32) -> u32;
    fn lerp_u16(self, a: u16, b: u16) -> u16;
    fn inv_lerp_u16(a: u16, b: u16, target: u16) -> Self;
}

A normalized value type usable as a curve domain / range.

Implementors map a unit interval onto a discrete integer type so that the tickless scheduler can convert between wall-clock time fractions and curve positions.

Required Methods

fn zero() -> Self

The value representing 0 (start of the interval).

fn one() -> Self

The value representing 1 (end of the interval).

fn to_index(self) -> usize

Convert this value to a LUT index (0-based).

fn from_time_frac(elapsed_ms: u32, duration_ms: u32) -> Self

Create a value from a time fraction elapsed / duration.

Returns Self::zero() when elapsed == 0 and Self::one() when elapsed >= duration.

fn to_time_offset(self, duration_ms: u32) -> u32

Convert this value back to a wall-clock offset in milliseconds within duration_ms, rounding up.

fn lerp_u16(self, a: u16, b: u16) -> u16

Linearly interpolate between two u16 endpoints using self as the blend weight.

fn inv_lerp_u16(a: u16, b: u16, target: u16) -> Self

Inverse linear interpolation: find the blend weight T such that T::lerp_u16(a, b) ≈ target, rounding toward b.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl UnitValue for u8

fn zero() -> Self

fn one() -> Self

fn to_index(self) -> usize

fn from_time_frac(elapsed_ms: u32, duration_ms: u32) -> Self

fn to_time_offset(self, duration_ms: u32) -> u32

fn lerp_u16(self, a: u16, b: u16) -> u16

fn inv_lerp_u16(a: u16, b: u16, target: u16) -> Self

impl UnitValue for u16

fn zero() -> Self

fn one() -> Self

fn to_index(self) -> usize

fn from_time_frac(elapsed_ms: u32, duration_ms: u32) -> Self

fn to_time_offset(self, duration_ms: u32) -> u32

fn lerp_u16(self, a: u16, b: u16) -> u16

fn inv_lerp_u16(a: u16, b: u16, target: u16) -> Self

Implementors