function seededRandom( s ) {

	if ( s !== undefined ) _seed = s;

	// Mulberry32 generator

	let t = _seed += 0x6D2B79F5;

	t = Math.imul( t ^ t >>> 15, t | 1 );

	t ^= t + Math.imul( t ^ t >>> 7, t | 61 );

	return ( ( t ^ t >>> 14 ) >>> 0 ) / 4294967296;

}
Returns a deterministic pseudo-random float in the interval `[0, 1]`.

@param {number} [s] - The integer seed.
@return {number} A random float.