Number.ts

export const smoothstep = (min: number, max: number, value: number): number => Math.max(0, Math.min(1, (value - min) / (max - min)));
export const mix = (value1: number, value2: number, percent: number): number => value1 * (1 - percent) + value2 * percent;
export const map = (value: number, min: number, max: number): number => clamp((value - min) / (max - min), min, max);
export const randomInt = (min: number, max: number): number => (Math.random() * (max - min + 1) | 0) + min;

export const clamp = (value: number, min = 0, max = 1): number => Math.max(min, Math.min(value, max));
export const random = (min: number, max: number): number => Math.random() * (max - min) + min;
export const lerp = (v0: number, v1: number, t: number): number => v0 + t * (v1 - v0);

export const PI = Object.freeze({ m2: Math.PI * 2.0, d2: Math.PI * 0.5 });

export const toFixed = (value: number, mantissa = 2.0) => {
  const pow10 = Math.pow(10.0, mantissa);
  return ~~(pow10 * value) / pow10;
};

export const PHI = Math.sqrt(5.0) * 0.5 + 0.5;

export const DELTA_UPDATE = 1.0 / 0.06;
export const DELTA_FRAME = 1.0 / 60.0;