2 replies to this topic

[AnalogF6Games]

EDIT: Wow, I found it finally. Instance_id is more for addressing a count for a particular instance type rather than global instance ids. You have to address the value as (instanceidhere).x = x_value. In my case, I replace "with(instance_id[obj_cockpit.wall1]) x" with "((obj_cockpit.wall1)).x"

I am running a game that is storing distance and directional data for individual instances, but I am being told that the n value is greater than 32000 and can't be used. What sense does that make when instance_id is by default going to start with 100000?

with(instance_id[obj_cockpit.wall1]) x = lengthdir_x(wall1_len,wall1_dir)
    with(instance_id[obj_cockpit.wall1]) y = lengthdir_y(wall1_len,wall1_dir)

The error I'm getting is

ERROR in
action number 1
of  Step Event
for object obj_cockpit_wall:

Error in code at line 3:
       with(instance_id[obj_cockpit.wall1]) x = lengthdir_x(wall1_len,wall1_dir)
                                    ^

at position 35: Array index >= 32000

Is it the way I'm using instance_id that's wrong? It can't be that I have to manually set instance ids and then use them, is it?

Edited by AnalogF6Games, 03 September 2012 - 07:54 PM.

[HaRRiKiRi]

You can also just do this:

with(obj_cockpit.wall1) {x = lengthdir_x(wall1_len,wall1_dir); y = lengthdir_y(wall1_len,wall1_dir);}

That is if obj_cockpit.wall1 is the id of an instance.

Edited by HaRRiKiRi, 04 September 2012 - 06:32 PM.

[Gamer3D]

Unless I missed my guess, obj_cockpit.wall1 is set to the id of an instance.

You can use that directly. For example:

obj_cockpit.wall1 = instance_nearest(x, y, o_wall);
obj_cockpit.wall1.x = 7;
with (obj_cockpit.wall1)
  y -= 3;

instance_id[n] is just a list of the ids of all instances that exist during the current step. The ordering of these ids may change each step. To help you understand how to use this array, note that the following are equivalent:

with (all)
  x += 1;

var n;
for (n = 0; n < instance_count; n += 1)
  if (instance_exists(instance_id[n]))
    instance_id[n].x += 1;

EDIT: Improved examples.

Edited by Gamer3D, 04 September 2012 - 07:50 PM.