multiple timers in a script

integer gCount = 0;

...

llSetTimerEvent(1.0);

...

timer()
{
   flicker();
   if (++gCount == 300) {
      check_sun_position(); // so every five minutes
      gCount = 0;
   }
}

timer()
{
   flicker();
   if (++gCount == 300) {
      check_sun_position(); // so every five minutes
   }
}

if( (++gCount % 300) == 0 ) {
// whatever
}

integer timer_b = 1;


default{
	state_entry() {
		llSetTimerEvent(60.0);
	}
	timer(){
		timer_b += 1;
		if(timer_b == 3){
			llSay(0, "timer b");
		}
		else if(timer_b == 4){
			llSay(0, "timer c");
			timer_b = 1;
		}
		else{
			llSay(0, "timer");
		}
	}
}

float timeElapsed = 0.0;

state_entry() { llSetTimerEvent(0.01); }

timer() {
    float add = 0.5 + llFrand(0.5);
    timeElapsed += add;

    if (timeElapsed >= 300.0) {
        // Do sun check and actions
        timeElapsed = 0.0
    }
        
    // Flicker effect
    llSetTimerEvent(add);
}

// crude hack!  not test-compiled, verify syntax, etc, etc.
 
 default {
 	state_entry() {
 		 llSetTimerEvent(5.0); // for flicker
 		 llSensorRepeat( "NOSUCHTHING", "x", AGENT, 0.0, 0.0, 360.0); // for sun sensor.
 	}
 
 	 timer () { // flickerstuff
 	 }
 
 	 no_sensor(integer n) { // sun detection stuff
 	 }
 }

float FLICKER_PERIOD = ...;
float SUN_CHECK_PERIOD = ...;

float nextFlickerTime;
float nextSunCheckTime;


flicker(float currTime)
{
    ...

    nextFlickerTime = currTime+FLICKER_PERIOD;
}

checkSun(float currTime)
{
    ...

    nextSunCheckTime = currTime+SUN_CHECK_PERIOD;
}

setTimer(float currTime)
{
    if (nextFlickerTime < nextSunCheckTime)
    {
        llSetTimerEvent(nextFlickerTime - currTime);
    } else
    {
        llSetTimerEvent(nextSunCheckTime - currTime);
    }
}

...


default
{
    state_entry()
    {
        float currTime = llGetTime();
        nextFlickerTime = currTime+FLICKER_PERIOD;
        nextSunCheckTime = currTime+SUN_CHECK_PERIOD;
        setTimer(currTime);

        ...
    }

    timer()
    {
        float currTime = llGetTime();

        if (currTime >= nextFlickerTime)
        {
            flicker(currTime);
        }

        if (currTime >= nextSunCheckTime)
        {
            checkSun(currTime);
        }

       setTimer(currTime);
    }
}