Behavior template variable troubles and drawing lines

(I shall call Behavior Template files "behavior files", functions/methods != behavior) :)
I am working with Torque 2D.

I made up a fairly small behavior file that allows the user to (in TGB) to supply it with 4 keys and a friction value to simplify making games that involve using the arrow keys or such to move an object in all directions. The friction value makes the object quickly slide to a stop instead of an immediate halt.

Anyway, with the code for moving 'untouchable' from the rest of the game, so I can copy&paste it into a different game with ease, I need a function supplied with the behavior file to get which of the four keys are being pressed (to check for collisions or whatnot). This function must be called OUTSIDE of the behavior but access variables INSIDE the behavior.

//In this function we have a couple directional variables initialized
function B4DWF::onBehaviorAdd(%this)
{
	if(!isObject(moveMap))
		return;
		
	//Bind our keys on the keyboard
	moveMap.bindObj(getWord(%this.upKey, 0), getWord(%this.upKey, 1), moveUp, %this);
        //Blah blah the real code has a couple more lines

        %this.up = false;
        %this.down = false;
        %this.left = false;
        %this.right = false;
}

//Function binded to the up button
function B4DWF::moveUp(%this)
{
	if(%this.up == true)//THIS HAS A VALUE WHILE RUNNING
	{
                //...Real code has more lines
        }	

}

/*
In the end I would like this to return a string containing data about pressed keys
"0 0 0 0" = no keys pressed
"1 0 0 0" = up key pressed
"0 1 1 0" = down key and left key pressed
"1 1 1 1" = all keys pressed
*/

function B4DWF::getDirKeysPressed(%this)
{
        //THIS VARIABLE DOESN'T HAVE A VARIABLE WHILE RUNNING. TORSION SAYS IT HAS "YYYY" as it's value...
	if(%this.down)
		//Do something I haven't figured out yet
	else
		//Do something I haven't figured out yet
		
	return %pressed;//I will handle this later
}

But later in other code I have this...

function catPlayer::onCollision(%srcObject, %dstObject, %srcRef, %dstRef, %time, %normal, %contacts, %points){
	if(%dstObject.class $= "wall"){
                //simple test to set if collision has occurred
		%srcObject.setFlipY(true);
		
		%wallX = getWord(%normal,0);
		%wallY = getWord(%normal,1);
		
                //This actually calls the function but the variables are weird
		%collisions = B4DWF::getDirKeysPressed();//Problem here...

                //...
}

Any ideas on how to get the variables to work without global variables?

SECOND QUESTION

I couldn't see anything obvious in the Torque documentation that could allow me to draw lines or other shapes with code. For example: Like a simulated projectile arc involving sine a cosine and...stuff.

P.S. Although I am fairly new at Torque I am not real new with programming and C++. I can figure out fairly advanced stuff although I am human and need help.