LlMakeFountain

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/LSL

MakeFountain

llMakeFountain

	Deprecated
	(This function has been deprecated, please use llParticleSystem instead.)

Summary

Function: llMakeFountain( integer particles, float scale, float vel, float lifetime, float arc, integer bounce, string texture, vector offset, float bounce_offset );

0.1	Forced Delay
10.0	Energy

Make a fountain of particles

• integer	particles
• float	scale
• float	vel
• float	lifetime
• float	arc
• integer	bounce
• string	texture
• vector	offset
• float	bounce_offset

Caveats

• This function causes the script to sleep for 0.1 seconds.
• This function has been deprecated, please use llParticleSystem instead.

Examples

Notes

Beginning in 1.14, the simulator will be using llParticleSystem to emulate legacy llMakeFountain particles.

llMakeFountain(integer particle_count,
              float particle_scale,
              float particle_speed,
              float particle_lifetime,
              float source_cone,
              integer source_bounce,
              string source_texture_id,
              vector local_offset,
              vector bounce_offset);

fakeMakeFountain(integer particle_count, float particle_scale, float particle_speed,
                float particle_lifetime, float source_cone, integer bounce,
                string source_texture_id, vector local_offset, vector bounce_offset)
{
//      local_offset is ignored
//      bounce is ignored
//      bounce_offset is ignored
    llParticleSystem([
        PSYS_PART_FLAGS,            PSYS_PART_INTERP_COLOR_MASK|PSYS_PART_INTERP_SCALE_MASK|PSYS_PART_WIND_MASK|PSYS_PART_BOUNCE_MASK|PSYS_PART_EMISSIVE_MASK,
        PSYS_SRC_PATTERN,            PSYS_SRC_PATTERN_ANGLE_CONE,
        PSYS_PART_START_COLOR,        <1.0, 1.0, 1.0>,
        PSYS_PART_END_COLOR,        <1.0, 1.0, 1.0>,
        PSYS_PART_START_ALPHA,        0.50,
        PSYS_PART_END_ALPHA,        0.25,
        PSYS_PART_START_SCALE,        <particle_scale/1.5, particle_scale/1.5, 0.0>,
        PSYS_PART_END_SCALE,        <0.0, 0.0, 0.0>,
        PSYS_PART_MAX_AGE,            3.0,
        PSYS_SRC_ACCEL,                <1.0, 0.0, -4>,
        PSYS_SRC_TEXTURE,            source_texture_id,
        PSYS_SRC_BURST_RATE,        5/particle_count,
        PSYS_SRC_ANGLE_BEGIN,        0.0,
        PSYS_SRC_ANGLE_END,            source_cone*PI,
        PSYS_SRC_BURST_PART_COUNT,    1,
        PSYS_SRC_BURST_RADIUS,        0.0,
        PSYS_SRC_BURST_SPEED_MIN,    particle_speed,
        PSYS_SRC_BURST_SPEED_MAX,    particle_speed,
        PSYS_SRC_MAX_AGE,            particle_lifetime/2,
        PSYS_SRC_OMEGA,                <0.0, 0.0, 0.0>      ]);
}
//    Known discrepencies:
//    1) The bounce level is not adjustable with the new particle system,
//       it will be fixed to 0
//    2) The original llMakeFountain has random particle lifetime, which cannot be
//       created in the current particle system via a single call
//    3) several values are not taken 'verbatim' in the original particle system
//       (velocity is not m/sec for instance, and number of particles seems to be
//       wildly off), these are approximated loosely in this simulation via basic
//       divisors, which may not work out the same in some scenarios
//    4) There is no way to duplicate the offset from the old functions within the
//       new particle system

Deep Notes

Signature
function void llMakeFountain( integer particles, float scale, float vel, float lifetime, float arc, integer bounce, string texture, vector offset, float bounce_offset );