Trouble with Triggers

I have been having a bit of trouble getting a trigger to work. Here is a breakdown of what I'd like it to do:

- Player touches the trigger.
- Player changes colour.

I have a couple of functions that already handle the colour change, which currently works by pressing number keys (just for debugging/testing purposes). I also had the colour change working for when the player collided with an object, but I want the player to go THROUGH the object and in another thread it was recommended that I use triggers instead of collision. So far, I haven't been able to get the trigger to work.

Here is my script for a trigger that should be making the player turn red:

function redGate::onEnter(%this, %object)
{
		%object.red();
}

Here is what I have in the player's code that is related to this:

function playerClass::onLevelLoaded(%this, %scenegraph)
{
	$player = %this; 
	$colour = 0;

      moveMap.bindCmd(keyboard, "left", "playerLeft();", "playerLeftStop();");
      moveMap.bindCmd(keyboard, "right", "playerRight();", "playerRightStop();");
      moveMap.bindCmd(keyboard, "a", "playerJump();", "playerFall();");
      moveMap.bindCmd(keyboard, "1", "red();", "");
      moveMap.bindCmd(keyboard, "2", "orange();", "");
      moveMap.bindCmd(keyboard, "3", "yellow();", "");
      moveMap.bindCmd(keyboard, "4", "green();", "");
      moveMap.bindCmd(keyboard, "5", "blue();", "");
      moveMap.bindCmd(keyboard, "6", "violet();", "");
      moveMap.bindCmd(keyboard, "0", "grey();", "");
      
      %this.enableUpdateCallback();
}
function red()
{
	$colour = 1;
}
function orange()
{
	$colour = 2;
}
function yellow()
{
	$colour = 3;
}
function green()
{
	$colour = 4;
}
function blue()
{
	$colour = 5;
}
function violet()
{
	$colour = 6;
}
function grey()
{
	$colour = 0;
}
function playerClass::onUpdate(%this)
{
   %this.updateHorizontal();
   %this.updateVertical();
   %this.setCurrentAnimation();
}
function playerClass::setCurrentAnimation(%this)
{	

	if ($colour == 1)
	{
		%this.playAnimation(player1);
	}

	if ($colour == 2)
	{
		%this.playAnimation(player2);
	}

	if ($colour == 3)
	{
		%this.playAnimation(player3);
	}

	if ($colour == 4)
	{
		%this.playAnimation(player4);
	}

	if ($colour == 5)
	{
		%this.playAnimation(player5);
	}

	if ($colour == 6)
	{
		%this.playAnimation(player6);
	}
	if ($colour == 0)
	{
		%this.playAnimation(player0);
	}
}

Each animation, as you may have guessed, is the player's sprite but in a different colour. Is there something in my script that stands out as something that may be causing this issue? I don't think I am doing anything wrong in the editor, but if the scripting looks solid then I can start troubleshooting there.