Help with a particle effect during collision

Hello. I have a problem with displaying particles during a collision. Basically, the particle effect needs to be displayed when a ship is entering an atmosphere. I load the particle effect in script and stop the emitter. Now I have this code:

function ShipControlBehavior::onCollision(%this, %srcObject, %dstObject, %srcRef, %dstRef, %time, %normal, %contacts, %points)
{
	if(%srcObject.class != "PlanetAtmosphere")
		return;
	
	if(t2dVectorDistance(%this.owner.getPosition(), %srcObject.getPosition()) > 140.0)
	{
		sceneWindow2D.startCameraShake(4.0, 1.0);
		%this.EntryEffect.playEffect();
	}
}

to accomplish this.

The shake effect works the whole time when I'm in the atmosphere of the planet (> 140.0 units from the center of the planet). However, the particle effect works in exactly the opposite. When I'm inside the atmosphere, the particles are disabled (even though I don't manually disable them anywhere) and when I'm outside of the atmosphere, the particles are enabled. This is very odd. Also, if I move playEffect() from within the if statement, it will only be displayed while I'm NOT colliding and be disabled while I AM colliding. What's going on here?


EDIT: Nevermind. I fixed it myself. I realized that playEffect() shouldn't be called every frame during the collision. My mistake.

Fixed with this:

function ShipControlBehavior::onCollision(%this, %srcObject, %dstObject, %srcRef, %dstRef, %time, %normal, %contacts, %points)
{
	//string superclass = %this.owner.class;
	if(%srcObject.class != "PlanetAtmosphere")
		return;
	
	if(t2dVectorDistance(%this.owner.getPosition(), %srcObject.getPosition()) > 140.0)
	{
		sceneWindow2D.startCameraShake(4.0, 1.0);
		if(!%this.EntryEffect.getIsEffectPlaying())
			%this.EntryEffect.playEffect();
	}
}