Legacy GM Adding all objects (not instances) to a ds_list on room start

[lumini]

Hi there!

I was wondering if it is possible to make a ds_list and populate it on room start with indexes of different objects (from that room).
For instance, in a room are multiple instances of three objects (obj_one, obj_two, obj_three). What I am asking : is there a way just to add those three objects instead of populating a list with indexes of multiple instances ?

Thanks in advance !

 

[Aura]

<old post removed>

Edit: Just realised what you were asking for.

if (instance_exists(obj_one)) {
   ds_list_add(data, obj_one);
}

...would do that.

If you want to add the object indexes of all instances present in the room:

with (all) {
   ds_list_add(data, object_index);
}

If you want to add an object index only once:

with (all) {
   if (ds_list_find_index(data,object_index) == -1) {
      ds_list_add(data, object_index);
   }
}

 

[leonfook29]

I'm not sure i understand this well. You want to add the object index of the instance instead of the id? It could be done by retrieving the object_index of the instance, and then store it to the list. You could use ds_list_find_index(id, val) to check whether the object_index is stored.

But if you want to store the id, see above.

 

[Yal]

Something like this, maybe?

with(all){
  if(ds_list_find_index(global.list,object_index) < 0){
    ds_list_add(global.list,object_index)
  }
}

 

[lumini]

Something like this, maybe?

with(all){
  if(ds_list_find_index(global.list,object_index) < 0){
    ds_list_add(global.list,object_index)
  }
}

Exactly what I needed. I almost forgot that there is a with() statement... -_-
And thanks everyone on the replies! You indeed helped me out...