//inspired by Xah Lee (http://xahlee.org/sl/)
 
 
default
{
    state_entry() {
    llListen(0, "", NULL_KEY, "");
    }
    listen(integer channel, string name, key id, string message) {
        if (message == "off") {
        llParticleSystem([]);
        }
        else {
            if (message == "on") {
            integer bounce = 0;
            integer glow = 1;        
            integer interpColor = 1;    
            integer interpSize = 1;    
            integer followSource = 0;    
            integer followVel = 1;
            integer wind = 1;        
            integer pattern = PSYS_SRC_PATTERN_EXPLODE;
            key target = "";
            float age = 9.0;
            float maxSpeed = 3.0;            
            float minSpeed = 3.0;            
            string texture = "168e6813-096e-07ea-97ae-fd416826f627";           
            float startAlpha = 0.9;           
            float endAlpha = 0.0;            
            float SC1 = llFrand(1.0);                //makes the color random
            float SC2 = llFrand(1.0);               //you can comment out this section
            float SC3 = llFrand(1.0);                //and set the start color to your choice
            vector startColor = <SC1,SC2,SC3>;       //change this to set a particular start color
            vector endColor = <0.0,0.0,1.0>;      
            vector startSize = <0.3,0.3,0>;     
            vector endSize = <0.1,0.1,0>;       
            vector push = <0.0,0.0,-0.8>;          
            float life = 0;           
            integer count = 100;       
            float rate = 3.5;                         //sets the rate of bursts
            float radius = 0.1;       
            float outerAngle = 1;   
            float innerAngle = 0.9;    
            vector omega = <0,0,1>;
            integer flags = 0;
            if (target == "owner") target = llGetOwner();
            if (target == "self") target = llGetKey();
            if (glow == 1) flags = flags | PSYS_PART_EMISSIVE_MASK;
            if (bounce == 1) flags = flags | PSYS_PART_BOUNCE_MASK;
            if (interpColor == 1) flags = flags | PSYS_PART_INTERP_COLOR_MASK;
            if (interpSize == 1) flags = flags | PSYS_PART_INTERP_SCALE_MASK;
            if (wind == 1) flags = flags | PSYS_PART_WIND_MASK;
            if (followSource == 1) flags = flags | PSYS_PART_FOLLOW_SRC_MASK;
            if (followVel == 1) flags = flags | PSYS_PART_FOLLOW_VELOCITY_MASK;
            if (target != "") flags = flags | PSYS_PART_TARGET_POS_MASK;
            llParticleSystem([  PSYS_PART_MAX_AGE,7,
                PSYS_PART_FLAGS,flags,
                PSYS_PART_START_COLOR, startColor,
                PSYS_PART_END_COLOR, endColor,
                PSYS_PART_START_SCALE,startSize,
                PSYS_PART_END_SCALE,endSize,
                PSYS_SRC_PATTERN, pattern,
                PSYS_SRC_BURST_RATE,(float)rate,
                PSYS_SRC_ACCEL, push,
                PSYS_SRC_BURST_PART_COUNT,count,
                PSYS_SRC_BURST_RADIUS,(float)radius,
                PSYS_SRC_BURST_SPEED_MIN,(float)minSpeed,
                PSYS_SRC_BURST_SPEED_MAX,(float)maxSpeed,
                PSYS_SRC_TARGET_KEY,target,
                PSYS_SRC_INNERANGLE,(float)innerAngle,
                PSYS_SRC_OUTERANGLE,(float)outerAngle,
                PSYS_SRC_OMEGA, omega,
                PSYS_SRC_MAX_AGE, (float)life,
                PSYS_SRC_TEXTURE, texture,
                PSYS_PART_START_ALPHA, (float)startAlpha,
                PSYS_PART_END_ALPHA, (float)endAlpha]);
            }
        }
    }
}