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Question about using... pickRadius() , pickLine()

by Jesse Hall · in Torque Game Builder · 07/11/2005 (7:47 am) · 11 replies

What would be a basic way of taking the object list from pickRadius() and using it in an IF statement to find a specific type of object from that list?

For example:

function LiveBot()

// collision object radar
        {
         echo (t2dSceneGraph.pickRadius( $Bot::Tank1.getPositionX() SPC $Bot::Tank1.getPositionY(), 20 ));
         
         }

gets me something like this : 1235 1238 1239 1244 1245

Id like to find the $player object from this list in order to fire an aggro script. This is my first attempt at an AI and im still new to scripting so any help is appreciated.

- J
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Torque Owner Jason McIntosh
#1
07/11/2005 (8:39 am)
You can use GetWordCount( %list_of_objects ) and GetWord( %list_of_objects, %index ) to iterate through the results. Ie:
%c = GetWordCount( %list_of_objects );
for ( %i = 0; %i < %c; %i++ )
{
    %object = GetWord( %list_of_objects, %i );
    if ( %object == $player_object )
        doStuff();
}
Hope that makes the usage clear. :)

Torque Owner Jesse Hall
#2
07/11/2005 (8:43 am)
Crystal clear! I'll rock through the docs on getWordCount =)
you rock man.. thanks!

Associate Phil Shenk
#3
07/11/2005 (11:05 pm)
That would be cool if these pick functions put their stuff into a simSet instead of a string. Then you could do:
if( %objectList.isMember( $player ) )
{
     ///stuff
}

Simsets might be too heavy though?

Torque Owner Brian Painter
Scrith Productions
#4
07/12/2005 (3:39 am)
Quote:
That would be cool if these pick functions put their stuff into a simSet instead of a string.
One problem with that is that objects can only be in one simset at a time IIRC. If pickRadius() etc.. were to add the object to a (list) simset for return then it would be removed from any set you had put it in
:-(

An alternative simple test that works for me is:

if( strstr( %list_of_objects, $player ) >= 0 )
   {
      //etc....
   }

Torque 3D Owner Matthew Langley
Torque
#5
07/12/2005 (8:10 am)
Quote:One problem with that is that objects can only be in one simset at a time IIRC

Your thinking SimGroups... An object can be in as many SimSets, but only in one SimGroup :)

Associate Phil Shenk
#6
07/12/2005 (8:27 am)
Yeah, ditto on Matt. SimSets are great, I use them as containers all over the place.

I like your strstr example though. I'm always wanting to have a nice list of all the script functions for Torque. I keep finding all this cool stuff it can do.

Torque Owner Jason McIntosh
#7
07/12/2005 (8:52 am)
You could easily put the results into a SimSet for later handling. Especially since you're probably going to filter the results anyway, ie, if you're checking for the presence of a certain type of object. As you iterate to compare, plop any positives into a SimSet and then handle them later there.

Torque Owner Brian Painter
Scrith Productions
#8
07/12/2005 (11:00 am)
Sorry, my mistake.
Matt, you're dead right, I was thinking of SimGroup.

Associate Justin DuJardin
Default Studio Name
#9
07/12/2005 (11:11 am)
SimSets are sexy, put all your stuff into them and you will be happy :)

I should be a fortune cookie.

Torque 3D Owner Matthew Langley
Torque
#10
07/12/2005 (11:24 am)
Rofl @ justin "the fortune cookie"

Torque Owner Jason McIntosh
#11
07/12/2005 (7:48 pm)
You will be happy until you need the order of the objects in the SimSet to be maintained. Then you will discover some very strange bugs that will take hours to figure out until you realize this. Other than that....... :)