lotussim-script 0.8.5

A library for creating LOTUS-Simulator scripts.
Documentation 
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//! Mathematik-Hilfen und Vektortypen.
//!
//! Math helpers and vector types.

use crate::time::{delta, delta_f64};

pub use lotus_shared::math::*;

/// Nähert `old_value` exponentiell an `target` an (`f32`-Variante).
///
/// Exponentially approaches `target` from `old_value` (`f32` variant).
pub fn exponential_approach(old_value: f32, exponent: f32, target: f32) -> f32 {
    let factor = 1.0 - (-delta() * exponent).exp();
    old_value + factor * (target - old_value)
}

/// Nähert `old_value` exponentiell an `target` an (`f64`-Variante).
///
/// Exponentially approaches `target` from `old_value` (`f64` variant).
pub fn exponential_approach_64(old_value: f64, exponent: f64, target: f64) -> f64 {
    let factor = 1.0 - (-delta_f64() * exponent).exp();
    old_value + factor * (target - old_value)
}