point_attractor()

VectorField MayaFlux::Kinesis::ForceFields::point_attractor ( const glm::vec3 &  anchor, float  strength  )

inline

Radial attraction/repulsion toward an anchor point.

Parameters

anchor	Target position
strength	Force magnitude scalar (positive attracts, negative repels)

Returns

VectorField: glm::vec3 -> glm::vec3

Force magnitude follows inverse square: strength / max(d², floor). Direction is normalized delta from evaluation point to anchor. Floor of 0.1 prevents singularity at the anchor position.

Definition at line 19 of file ForceFields.hpp.

{
    return { .fn = [anchor, strength](const glm::vec3& p) -> glm::vec3 {
        glm::vec3 delta = anchor - p;
        float d = glm::length(delta);
        if (d < 0.001F)
            return glm::vec3(0.0F);
        return (delta / d) * (strength / std::max(d * d, 0.1F));
    } };
}

References MayaFlux::Kinesis::Tendency< D, R >::fn.

Referenced by MayaFlux::Nodes::Network::PhysicsOperator::apply_attraction_forces().

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