Static

//Particle settings; see http://lslwiki.net/lslwiki/wakka.php?wakka=llParticleSystem to find out what
//these do and how to modify or augment them

list myParticles = [PSYS_PART_START_COLOR,<1,1,.6>,
PSYS_PART_START_SCALE,0.01,
PSYS_PART_END_SCALE,0.01,
PSYS_PART_MAX_AGE,15,
PSYS_SRC_ACCEL,1,
PSYS_SRC_ANGLE_END,1.5,
PSYS_SRC_BURST_PART_COUNT,15,
PSYS_SRC_BURST_RADIUS,1,
PSYS_SRC_BURST_RATE,14,
PSYS_SRC_BURST_SPEED_MAX,1,
PSYS_PART_EMISSIVE_MASK,1,
PSYS_PART_WIND_MASK,1
]
;

change_effect()
{
    vector sun = llGetSunDirection();

    if (sun.z <= 0)
        llParticleSystem(myParticles);
    else if (sun.z > 0)
        llParticleSystem([]);
}

default
{
    state_entry()
    {
        llSetTimerEvent(1800); // Check every 30 minutes
    }

    timer()
    {
        change_effect();
    }

    touch_start(integer total_number)
    {
        change_effect();
    }

    on_rez(integer x)
    {
        change_effect();
    }
}