Legacy GM [SOLVED] Createing a radius around an object

[Barack Pálinka]

Hey guys!I'd like to create a radius around an objects so when an another object is in the radius it would do something.

In this case: i want to create a radius around a castle so when the enemies are inside the circle it would start shooting the castle.

Thanks in advance.

 

[RefresherTowel]

if (distance_to_object(object_name) < radius) {
    //whatever code you want when they are within the radius
}

Alternatively

if (distance_to_point(x_point,y_point) < radius) {
    //whatever code you want when they are within the radius
}

 

[Barack Pálinka]

Thanks it works perfectly

 

[Simon Gust]

if (distance_to_object(object_name) < radius) {
    //whatever code you want when they are within the radius
}

Alternatively

if (distance_to_point(x_point,y_point) < radius) {
    //whatever code you want when they are within the radius
}

Sure that works but it's not precise and it's slower than the precise method.
You should be using point_distance(x, y, x_point, y_point).