max( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );

		return this;

	}
If this vector's x or y value is less than the given vector's x or y
value, replace that value with the corresponding max value.

@param {Vector2} v - The vector.
@return {Vector2} A reference to this vector.