How to make things happen only in a certain area

[FlawlessHappiness]

To me, the idea is to have an area that starts a repeating timer, and stops a repeating timer.

void CollideCallback(string &in asParent, string &in asChild, int alState)
{
if(alState == 1) //If going inside area.
{
if(GetTimerTimeLeft("Breath") > 0)
else
{
AddTimer("Breath", 1.0f, "BreathTimer");
}
SetLocalVarInt("BreathTimerVar", 1);
}

if(alState == -1) //If going outside of area
{
SetLocalVarInt("BreathTimerVar", 0);
}
}

void BreathTimer(string &in asTimer)
{
if(GetLocalVarInt("BreathTimerVar") == 1)
{
//PlaySound
AddTimer("Breath", 1.0f, "BreathTimer");
}
}