public override void ApplyForcesToActor(ObiActor actor)
{
Matrix4x4 l2sTransform;
if (actor.Solver.simulateInLocalSpace)
{
l2sTransform = actor.Solver.transform.worldToLocalMatrix * transform.localToWorldMatrix;
}
else
{
l2sTransform = transform.localToWorldMatrix;
}
Vector4 directionalForce = l2sTransform.MultiplyVector(Vector3.forward * (intensity + GetTurbulence(turbulence)));
float sqrRadius = radius * radius;
// Allocate forces array:
Vector4[] forces = new Vector4[actor.particleIndices.Length];
Vector4 center = new Vector4(transform.position.x, transform.position.y, transform.position.z);
// Calculate force intensity for each actor particle:
for (int i = 0; i < forces.Length; ++i)
{
Vector4 distanceVector = actor.Solver.renderablePositions[actor.particleIndices[i]] - center;
float sqrMag = distanceVector.sqrMagnitude;
float falloff = Mathf.Clamp01((sqrRadius - sqrMag) / sqrRadius);
if (radial)
{
forces[i] = distanceVector / (Mathf.Sqrt(sqrMag) + float.Epsilon) * falloff * intensity;
}
else
{
forces[i] = directionalForce * falloff;
}
}
if (actor.UsesCustomExternalForces)
{
Oni.AddParticleWinds(actor.Solver.OniSolver, forces, actor.particleIndices, actor.particleIndices.Length);
}
else
{
Oni.AddParticleExternalForces(actor.Solver.OniSolver, forces, actor.particleIndices, actor.particleIndices.Length);
}
}
