Rotating points around points

[Conbeef]

this is what I have:

image_angle += rotSpd;

Points[0,0] = x + lengthdir_x(point_distance(x,y,Points[0,0],Points[0,1]), point_direction(x, y, Points[0,0], Points[0,1]) + rotSpd);

Points[0,1] = y + lengthdir_y(point_distance(x,y,Points[0,0],Points[0,1]), point_direction(x, y, Points[0,0], Points[0,1]) + rotSpd);

This works, but it slowly moves towards the center point(x,y). How do I fix this?

 

[obscene]

image_angle += rotSpd;
var l=point_distance(x,y,Points[0,0],Points[0,1]);
Points[0,0] = x + lengthdir_x(l,image_angle);
Points[0,1] = y + lengthdir_y(l,image_angle);

 

[Conbeef]

image_angle += rotSpd;
var l=point_distance(x,y,Points[0,0],Points[0,1]);
Points[0,0] = x + lengthdir_x(l,image_angle);
Points[0,1] = y + lengthdir_y(l,image_angle);

Thank you sir or madam