DistanceBetweenPoints = function (a, b)
{
    var dx = a.x - b.x;
    var dy = a.y - b.y;

    return Math.sqrt(dx * dx + dy * dy);
}
Calculate the distance between two points.

@function Phaser.Math.Distance.BetweenPoints
@since 3.22.0

@param {Phaser.Types.Math.Vector2Like} a - The first point.
@param {Phaser.Types.Math.Vector2Like} b - The second point.

@return {number} The distance between the points.