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- // David Eberly, Geometric Tools, Redmond WA 98052
- // Copyright (c) 1998-2020
- // Distributed under the Boost Software License, Version 1.0.
- // https://www.boost.org/LICENSE_1_0.txt
- // https://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
- // Version: 4.0.2019.08.13
- #pragma once
- #include <Mathematics/FeatureKey.h>
- // An ordered edge has (V[0], V[1]) = (v0, v1). An unordered edge has
- // (V[0], V[1]) = (min(V[0],V[1]), max(V[0],V[1])).
- namespace WwiseGTE
- {
- template <bool Ordered>
- class EdgeKey : public FeatureKey<2, Ordered>
- {
- public:
- // Initialize to invalid indices.
- EdgeKey()
- {
- this->V = { -1, -1 };
- }
- // This constructor is specialized based on Ordered.
- explicit EdgeKey(int v0, int v1)
- {
- Initialize(v0, v1);
- }
- private:
- template <bool Dummy = Ordered>
- typename std::enable_if<Dummy, void>::type
- Initialize(int v0, int v1)
- {
- this->V[0] = v0;
- this->V[1] = v1;
- }
- template <bool Dummy = Ordered>
- typename std::enable_if<!Dummy, void>::type
- Initialize(int v0, int v1)
- {
- if (v0 < v1)
- {
- // v0 is minimum
- this->V[0] = v0;
- this->V[1] = v1;
- }
- else
- {
- // v1 is minimum
- this->V[0] = v1;
- this->V[1] = v0;
- }
- }
- };
- }
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