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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 figure, so the corkscrew winds at a constant rate however long the shot is. Distance is in leptons, 256 to a cell, and the figure is in radians, which makes .025 a shade over one full turn per cell and .035 about one and a half. 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

The winding rate and ParticlesPerCoord work against each other: too tight a wind for the density on offer leaves fewer than a handful of particles per turn, and the corkscrew reads as scattered dots rather than a coil. At zero the particles sit in a straight line offset from the beam by SpiralRadius rather than circling it.

See also — BehavesLike, SpiralRadius, ParticlesPerCoord, PositionPerturbationCoefficient