private double distanceTo(Actor opponent) { double actorToMoveX = opponent.getAvatar().getTranslateX(); double actorToMoveY = opponent.getAvatar().getTranslateY(); double currentX = getAvatar().getTranslateX(); double currentY = getAvatar().getTranslateY(); double deltaX = actorToMoveX - currentX; double deltaY = actorToMoveY - currentY; double calculatedDistance = Math.sqrt(deltaX * deltaX + deltaY * deltaY); return calculatedDistance; }