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ButterflyGenerator/ButterflyGenerator/ButterflyGenerator.prj

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+<Project name="ButterflyGenerator" guid="ee8ed798-4c05-493f-9fc9-b83e90c38c24">
+	<Object name="rezzer Box" guid="b40c2e84-991a-4349-8cee-8c9bc7e6d8ce" active="true">
+		<Snapshot name="butterfly002.png" guid="2e3621cd-7fdc-4c6b-ad80-4d5836c4b236">
+		</Snapshot>
+		<Script name="ButterflyGenerator.lsl" guid="a7d8a825-4104-45e7-993b-172ef0d6dd2f">
+		</Script>
+	</Object>
+</Project>

ButterflyGenerator/ButterflyGenerator/rezzer Box/ButterflyGenerator.lsl

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+// :CATEGORY:Particles
+// :NAME:ButterflyGenerator
+// :AUTHOR:JPvdGiessen
+// :KEYWORDS:
+// :CREATED:2014-10-21 20:07:12
+// :EDITED:2014-10-21
+// :ID:1051
+// :NUM:1669
+// :REV:1
+// :WORLD:Second Life
+// :DESCRIPTION:
+// Rezzes particle butterflies
+// :CODE:
+// ButterflyGenerator
+// (c) JPvdGiessen IT Consultancy
+
+MakeParticles()                //This is the function that actually starts the particle system.
+{                 
+    llParticleSystem([                     
+        PSYS_PART_FLAGS , 0 //Comment out any of the following masks to deactivate them
+    | PSYS_PART_BOUNCE_MASK           //Bounce on object's z-axis
+    | PSYS_PART_WIND_MASK             //Particles are moved by wind
+    | PSYS_PART_INTERP_SCALE_MASK       //Scale fades from beginning to end
+    | PSYS_PART_FOLLOW_SRC_MASK         //Particles follow the emitter
+    | PSYS_PART_FOLLOW_VELOCITY_MASK    //Particles are created at the velocity of the emitter
+    ,
+    
+    PSYS_SRC_PATTERN,           PSYS_SRC_PATTERN_EXPLODE
+    
+    ,PSYS_SRC_TEXTURE,           "butterfly"                 //UUID of the desired particle texture, or inventory name
+    ,PSYS_SRC_MAX_AGE,           0.0                //Time, in seconds, for particles to be emitted. 0 = forever
+    ,PSYS_PART_MAX_AGE,          50.0                //Lifetime, in seconds, that a particle lasts
+    ,PSYS_SRC_BURST_RATE,        0.5               //How long, in seconds, between each emission
+    ,PSYS_SRC_BURST_PART_COUNT,  3                  //Number of particles per emission
+    ,PSYS_SRC_BURST_RADIUS,      1.0                //Radius of emission
+    ,PSYS_SRC_BURST_SPEED_MIN,   1.5                //Minimum speed of an emitted particle
+    ,PSYS_SRC_BURST_SPEED_MAX,   5.0                //Maximum speed of an emitted particle
+    ,PSYS_SRC_ACCEL,             <0.0,0.0,-0.8>     //Acceleration of particles each second
+    ,PSYS_PART_START_ALPHA,      0.9                //Starting transparency, 1 is opaque, 0 is transparent.
+    ,PSYS_PART_END_ALPHA,        0.0                //Ending transparency
+    ,PSYS_PART_START_SCALE,      <0.2,0.2,0.0>      //Starting particle size
+    ,PSYS_PART_END_SCALE,        <0.01,0.01,0.0>      //Ending particle size, if INTERP_SCALE_MASK is on
+    ,PSYS_SRC_ANGLE_BEGIN,       PI                 //Inner angle for ANGLE patterns
+    ,PSYS_SRC_ANGLE_END,         PI                 //Outer angle for ANGLE patterns
+    ,PSYS_SRC_OMEGA,             <0.0,0.0,0.0>       //Rotation of ANGLE patterns, similar to llTargetOmega()
+            ]);
+}
+
+default
+{    
+    state_entry()
+    {
+        llSay(0, "On") ;
+        MakeParticles();                //Start making particles
+    }
+
+    touch_start( integer num )            //Turn particles off when touched
+    {
+        state off;                  //Switch to the off state
+    }
+}
+
+state off
+{
+    state_entry()
+    {
+        llSay(0, "Off") ;
+        llParticleSystem([]);        //Stop making particles
+    }
+    
+    touch_start( integer num )        //Turn particles back on when touched
+    {
+        state default;
+    }
+}