PointInCircle

function PointInCircle(

  const p: TVector2f;

  const circle: TVector2f;

  const radius: single

):Boolean; overload;

function PointInCircle(

  const pX: single;

  const pY: single;

  const circleX: single;

  const circleY: single;

  const radius: single

):Boolean; overload;