// Configure the sensor parameters
float SENSOR_RANGE = 10.0;   // The distance in meters to sense avatars
integer SENSOR_INTERVAL = 5;  // The interval in seconds for checking

// Initialize light properties
vector LIGHT_COLOR = <1.0, 1.0, 0.0>; // Yellow light
float LIGHT_INTENSITY = 1.0;          // Intensity of light
float LIGHT_RADIUS = 10.0;             // Radius of the light
float LIGHT_FALLOFF = 1.0;             // Light falloff

default
{
    state_entry()
    {
        llSensorRepeat("", NULL_KEY, AGENT, SENSOR_RANGE, PI, SENSOR_INTERVAL);
    }

    sensor(integer total_num)
    {
        // Detected an avatar, turn on the light
        llSetPrimitiveParams([
            PRIM_POINT_LIGHT, 
            TRUE,                // Enable light
            LIGHT_COLOR,        // Color of the light
            LIGHT_INTENSITY,    // Intensity of the light
            LIGHT_RADIUS,       // Radius of the light
            LIGHT_FALLOFF       // Falloff of the light
        ]);
    }

    no_sensor()
    {
        // No avatars detected, turn off the light
        llSetPrimitiveParams([
            PRIM_POINT_LIGHT, 
            FALSE,              // Disable light
            <0.0, 0.0, 0.0>,    // Color (not needed when turned off)
            0.0,                // Intensity (not needed when turned off)
            0.0,                // Radius (not needed when turned off)
            0.0                 // Falloff (not needed when turned off)
        ]);
    }
}