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Cant get my "scan" function to work

by Daniel Bromfield · in Torque 3D Professional · 05/13/2013 (4:45 am) · 7 replies

im trying to get my npc to search for the player but i keep getting error message

getTransform unknown command???



function AIBasicDB::scan(%aiPlayer){
// transform - A seven-element matrix/vector containing the following information:
// PosX PosY PoxZ RotX RotY RotZ theta (radians)
%transform = %aiPlayer.getTransform();
// Set the x and y rotation axis
%transform = setWord(%transform,3, "0");
%transform = setWord(%transform,4, "0");
// Get the rotational angle measured in radians
%radians = getWord(%transform,6);
// Convert it to degrees
%angle = mRadToDeg(%radians);
// Get the z rotation axis value
%rotationZ = getWord(%transform,5);
// Not sure why but beyond 240 degrees the z rotation axis changes from
// 1 to -1 and the angle changes from 240 to 120 !!!
// This is a work around
if (%rotationZ< 0){
// For an angle between 240 and 360 the engine
// interprits this as 120 to 0. So decrement angle
%angle -= 1.0;
%transform = setWord(%transform,5, "-1");
}
else {
%angle += 1.0;
%transform = setWord(%transform,5, "1");
}
%radians = mDegToRad(%angle);
%transform = setWord(%transform,6, %radians);
%aiPlayer.setTransform(%transform);
}
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Torque Owner Lukas Joergensen
WinterLeaf Entertainment
#1
05/13/2013 (5:06 am)
So what I think might be the reason is that you may be sending a player datablock instead of the player itself.
Try writing 
%aiPlayer.dump();
and see what it gives you.

Daniel Bromfield
#2
05/13/2013 (5:08 am)
where abouts do i put that?
and what does the dump() function do??


Torque Owner Daniel Buckmaster
T3D Steering Committee
#3
05/13/2013 (5:09 am)
How are you calling the function? Say you have this:
function SimObject::doSomething(%arg) {
   echo(%arg);
}

MySimObject.doSomething();
ScriptObject::doSomething(MySimObject);
Those calls are the same - %arg is MyScriptObject. So if you call this function on a PlayerData datablock, then %aiPlayer is that datablock, and it, of course, doesn't have a transform.

Also, it helps us help you if you use the code tags! [ code] and [ /code]

Daniel Bromfield
#4
05/13/2013 (5:11 am)
thanx for the reply btw

Daniel Bromfield
#5
05/13/2013 (5:13 am)
ok im very new to this forum, im a second year uni student so give me time i shall be a pro at making it easier for u!!

should i put the whole script here? i call it in another part of my script

%aiPlayer.getDataBlock().schedule(500,"scan",%aiPlayer);

Torque Owner Daniel Buckmaster
T3D Steering Committee
#6
05/13/2013 (6:19 am)
So when the scheduled scan function is called on the datablock, it receives %aiPlayer as an argument - but the first argument is the datablock. So your function should look like this:
function AIBasicDB::scan(%datablock, %aiPlayer) {

Daniel Bromfield
#7
05/13/2013 (7:45 am)
the error message has gone, i put an echo statement in there and it is defo going into the function but its not performing it?

the datablock should be AIBasic? thats the datablock that holds all the info regarding the AI? thats what i use in all my other functions?