Example Particle Script
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For a simpler, always on particle script, just cut out the entire touch_start event.
<lsl>// Particle Script 0.5 // Created by Ama Omega // 3-26-2004
// Mask Flags - set to TRUE to enable integer glow = TRUE; // Make the particles glow integer bounce = FALSE; // Make particles bounce on Z plane of object integer interpColor = TRUE; // Go from start to end color integer interpSize = TRUE; // Go from start to end size integer wind = TRUE; // Particles effected by wind integer followSource = TRUE; // Particles follow the source integer followVel = TRUE; // Particles turn to velocity direction
// Choose a pattern from the following: // PSYS_SRC_PATTERN_EXPLODE // PSYS_SRC_PATTERN_DROP // PSYS_SRC_PATTERN_ANGLE_CONE_EMPTY // PSYS_SRC_PATTERN_ANGLE_CONE // PSYS_SRC_PATTERN_ANGLE integer pattern = PSYS_SRC_PATTERN_EXPLODE;
// Select a target for particles to go towards // "" for no target, "owner" will follow object owner // and "self" will target this object // or put the key of an object for particles to go to key target = "self";
// Particle paramaters float age = 1; // Life of each particle float maxSpeed = 1; // Max speed each particle is spit out at float minSpeed = 1; // Min speed each particle is spit out at string texture = ""; // Texture used for particles, default used if blank float startAlpha = 1; // Start alpha (transparency) value float endAlpha = 0.1; // End alpha (transparency) value vector startColor = <0,1,0>; // Start color of particles <R,G,B> vector endColor = <1,0,0>; // End color of particles <R,G,B> (if interpColor == TRUE) vector startSize = <1,1,1>; // Start size of particles vector endSize = <1,0,1>; // End size of particles (if interpSize == TRUE) vector push = <0,0,0>; // Force pushed on particles
// System paramaters float rate = 1.5; // How fast (rate) to emit particles float radius = 1; // Radius to emit particles for BURST pattern integer count = 1; // How many particles to emit per BURST float outerAngle = 1.54; // Outer angle for all ANGLE patterns float innerAngle = 1.55; // Inner angle for all ANGLE patterns vector omega = <0,0,0>; // Rotation of ANGLE patterns around the source float life = 0; // Life in seconds for the system to make particles
// Script variables integer pre = 2; //Adjust the precision of the generated list.
integer flags; list sys; integer type; vector tempVector; rotation tempRot; string tempString; integer i;
string float2String(float in) {
return llGetSubString((string)in,0,pre - 7);
}
updateParticles() {
flags = 0;
if (target == "owner") target = llGetOwner();
if (target == "self") target = llGetKey();
if (glow) flags = flags | PSYS_PART_EMISSIVE_MASK;
if (bounce) flags = flags | PSYS_PART_BOUNCE_MASK;
if (interpColor) flags = flags | PSYS_PART_INTERP_COLOR_MASK;
if (interpSize) flags = flags | PSYS_PART_INTERP_SCALE_MASK;
if (wind) flags = flags | PSYS_PART_WIND_MASK;
if (followSource) flags = flags | PSYS_PART_FOLLOW_SRC_MASK;
if (followVel) flags = flags | PSYS_PART_FOLLOW_VELOCITY_MASK;
if (target != "") flags = flags | PSYS_PART_TARGET_POS_MASK;
sys = [ PSYS_PART_MAX_AGE,age,
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,rate,
PSYS_SRC_ACCEL, push,
PSYS_SRC_BURST_PART_COUNT,count,
PSYS_SRC_BURST_RADIUS,radius,
PSYS_SRC_BURST_SPEED_MIN,minSpeed,
PSYS_SRC_BURST_SPEED_MAX,maxSpeed,
PSYS_SRC_TARGET_KEY,target,
PSYS_SRC_ANGLE_BEGIN,innerAngle,
PSYS_SRC_ANGLE_END,outerAngle,
PSYS_SRC_OMEGA, omega,
PSYS_SRC_MAX_AGE, life,
PSYS_SRC_TEXTURE, texture,
PSYS_PART_START_ALPHA, startAlpha,
PSYS_PART_END_ALPHA, endAlpha
];
llParticleSystem(sys);
}
default {
state_entry()
{
updateParticles();
}
touch_start(integer num)
{
llWhisper(0,"...Generating List...");
for (i=1;i<42;i+=2)
{
type = llGetListEntryType(sys,i);
if(type == TYPE_FLOAT)
{
tempString = float2String(llList2Float(sys,i));
sys = llDeleteSubList(sys,i,i);
sys = llListInsertList(sys,[tempString],i);
}
else if (type == TYPE_VECTOR)
{
tempVector = llList2Vector(sys,i);
tempString = "<" + float2String(tempVector.x) + ","
+ float2String(tempVector.y) + ","
+ float2String(tempVector.z) + ">";
sys = llDeleteSubList(sys,i,i);
sys = llListInsertList(sys,[tempString],i);
}
else if (type == TYPE_ROTATION)
{
tempRot = llList2Rot(sys,i);
tempString = "<" + float2String(tempRot.x) + ","
+ float2String(tempRot.y) + ","
+ float2String(tempRot.z) + ","
+ float2String(tempRot.s) + ">";
sys = llDeleteSubList(sys,i,i);
sys = llListInsertList(sys,[tempString],i);
}
else if (type == TYPE_STRING || type == TYPE_KEY)
{
tempString = "\"" + llList2String(sys,i) + "\"";
sys = llDeleteSubList(sys,i,i);
sys = llListInsertList(sys,[tempString],i);
}
}
sys = llListSort(sys,2,TRUE);
if (target == "") sys = llDeleteSubList(sys,38,39);
else if (target == llGetKey() )
sys = llListInsertList(llDeleteSubList(sys,39,39),["llGetKey()"],39);
else if (target == llGetOwner() )
sys = llListInsertList(llDeleteSubList(sys,39,39),["llGetOwner()"],39);
if (texture == "") sys = llDeleteSubList(sys,24,25);
if (!interpSize) sys = llDeleteSubList(sys,12,13);
if (!interpColor) sys = llDeleteSubList(sys,6,7);
llWhisper(0,"[" + llList2CSV(llList2List(sys,0,21)) + ",");
llWhisper(0,llList2CSV(llList2List(sys,22,-1)) + "]");
}
}</lsl>