Dynamic TID Assigner

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Contents 1 Assumed Knowledge 2 The Function 3 The Script 4 Application 5 See Also

Assumed Knowledge

It is assumed that before you begin this tutorial, you are familiar with the following concepts:

functions Thing_ChangeTID

The Function

We'll start with a map level integer for the base TID to start assigning. For this example we'll use the negative range, from -32767 to -1.

int GiveTID = -32767;

function int NextTID (VOID)
{
    for (GiveTID=GiveTID; GiveTID<0; GiveTID++)
    {
        if (!ThingCount (T_NONE, GiveTID))
            return GiveTID;
    }
    return 0;
}

The Script

This is the script your actor will need to activate to give itself a genuine TID. There are several ways to go about the activation. The script checks for the activator to have no TID, then generates a new one to give it. So, if you have a special TID you need to preserve, the script will not overwrite it. If used correctly, this can be a handy tool for individual actor identification for large scale scenarios.

Script 999 (VOID)
{
    if (!ActivatorTID ())
    {
        Thing_ChangeTID (0, NextTID ());
    }
}

Application

This is an example of how to use DECORATE to modify your Imps so that they will assign themselves unique tids.

actor _DoomImp : DoomImp replaces DoomImp
{
  states
  {
  Spawn:
    TROO A 0
    TROO A 0 ACS_ExecuteAlways (999, 0)
    TROO AB 10 A_Look
    goto Spawn+2
  }
}

See Also

Tutorials