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OpenTS Manual

SpiralDeltaPerCoord

How far a railgun trace's corkscrew turns per lepton of beam length, in radians.

Specification
Applies to
ParticleSystemType
File
rules.ini
Section
[<ObjectType ID>]
Value
floating point
When omitted
.025

Each particle’s angle around the beam is its distance from the muzzle multiplied by this value, so the corkscrew winds at the same rate on a short shot and a long one. Distance is in leptons, 256 to a cell, and the angle is in radians: .025 turns a little more than once per cell, and .035 about one and a half times. A negative value winds the coil the other way. Only the Railgun behavior reads it.

rules.ini
[MyRailgunSys] ; a ParticleSystemType registered in [ParticleSystems]
BehavesLike=Railgun
HoldsWhat=MyRailgunPart ; a ParticleType registered in [Particles]
SpiralDeltaPerCoord=.035
SpiralRadius=6
ParticlesPerCoord=.1 ; about 18 particles to each turn of the coil

A tighter wind spreads the same particles over more turns. Each turn gets about 6.28 times ParticlesPerCoord divided by this value, which gives the 18 in the example above. Raise ParticlesPerCoord along with this value to keep that count up; once a turn has only a handful of particles, they no longer outline a coil.

At zero the particles do not circle the beam. They form a straight line beside it, SpiralRadius away.

See also — BehavesLike, SpiralRadius, ParticlesPerCoord, PositionPerturbationCoefficient