minmaxonaxis.h

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/*
* Copyright 2016 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/

#pragma once

#include "gwnavruntime/math/vec2f.h"
#include "gwnavruntime/math/vec2i.h"
#include "gwnavruntime/math/vec2ll.h"

namespace Kaim
{

class MinMaxOnAxis // class with static functions only
{
public:
     KY_INLINE static void GetSegment2(const Vec2f& OA, const Vec2f& OB, const Vec2f& axis, KyFloat32& xmin, KyFloat32& xmax)
    {
        const KyFloat32 a = DotProduct(OA, axis);
        const KyFloat32 b = DotProduct(OB, axis);
        xmin = Kaim::Min(a, b);
        xmax = Kaim::Max(a, b);
    }

    KY_INLINE static void GetSegment2(const Vec2LL& OA, const Vec2LL& OB, const Vec2LL& axis, KyInt64& xmin, KyInt64& xmax)
    {
        const KyInt64 a = DotProduct(OA, axis);
        const KyInt64 b = DotProduct(OB, axis);
        xmin = Kaim::FastMin(a, b);
        xmax = Kaim::FastMax(a, b);
    }

    KY_INLINE static void Get2(const Vec2f& A, const Vec2f& B, const Vec2f& O, const Vec2f& axis, KyFloat32& xmin, KyFloat32& xmax) { GetSegment2(A - O, B - O, axis, xmin, xmax); }
    KY_INLINE static void Get2(const Vec2LL& A, const Vec2LL& B, const Vec2LL& O, const Vec2LL& axis, KyInt64& xmin, KyInt64& xmax) { GetSegment2(A - O, B - O, axis, xmin, xmax); }

    KY_INLINE static void Get3(const Vec2f& A, const Vec2f& B, const Vec2f& C, const Vec2f& O, const Vec2f& axis, KyFloat32& xmin, KyFloat32& xmax)
    {
        const KyFloat32 a = DotProduct(A - O, axis);
        const KyFloat32 b = DotProduct(B - O, axis);
        const KyFloat32 c = DotProduct(C - O, axis);
        xmin = Kaim::Min(a, b, c);
        xmax = Kaim::Max(a, b, c);
    }

    KY_INLINE static void Get3(const Vec2LL& A, const Vec2LL& B, const Vec2LL& C, const Vec2LL& O, const Vec2LL& axis, KyInt64& xmin, KyInt64& xmax)
    {
        const KyInt64 a = DotProduct(A - O, axis);
        const KyInt64 b = DotProduct(B - O, axis);
        const KyInt64 c = DotProduct(C - O, axis);
        xmin = Kaim::FastMin(a, b, c);
        xmax = Kaim::FastMax(a, b, c);
    }

    KY_INLINE static void Get4(const Vec2f& A, const Vec2f& B, const Vec2f& C, const Vec2f& D, const Vec2f& O, const Vec2f& axis, KyFloat32& xmin, KyFloat32& xmax)
    {
        const KyFloat32 a = DotProduct(A - O, axis);
        const KyFloat32 b = DotProduct(B - O, axis);
        const KyFloat32 c = DotProduct(C - O, axis);
        const KyFloat32 d = DotProduct(D - O, axis);
        xmin = Kaim::Min(a, b, c, d);
        xmax = Kaim::Max(a, b, c, d);
    }

    KY_INLINE static void Get4(const Vec2LL& A, const Vec2LL& B, const Vec2LL& C, const Vec2LL& D, const Vec2LL& O, const Vec2LL& axis, KyInt64& xmin, KyInt64& xmax)
    {
        const KyInt64 a = DotProduct(A - O, axis);
        const KyInt64 b = DotProduct(B - O, axis);
        const KyInt64 c = DotProduct(C - O, axis);
        const KyInt64 d = DotProduct(D - O, axis);
        xmin = Kaim::FastMin(a, b, c, d);
        xmax = Kaim::FastMax(a, b, c, d);
    }

    KY_INLINE static void Get4(const Vec2i& A, const Vec2i& B, const Vec2i& C, const Vec2i& D, const Vec2i& O, const Vec2i& axis, KyInt32& xmin, KyInt32& xmax)
    {
        const KyInt32 a = DotProduct(A - O, axis);
        const KyInt32 b = DotProduct(B - O, axis);
        const KyInt32 c = DotProduct(C - O, axis);
        const KyInt32 d = DotProduct(D - O, axis);
        xmin = Kaim::FastMin(a, b, c, d);
        xmax = Kaim::FastMax(a, b, c, d);
    }

    KY_INLINE static void Get1AndOrig(const Vec2f& A, const Vec2f& O, const Vec2f& axis, KyFloat32& xmin, KyFloat32& xmax)
    {
        const KyFloat32 a = DotProduct(A - O, axis);
        xmin = Kaim::Min(a, 0.0f);
        xmax = Kaim::Max(a, 0.0f);
    }

    KY_INLINE static void Get1AndOrig(const Vec2LL& A, const Vec2LL& O, const Vec2LL& axis, KyInt64& xmin, KyInt64& xmax)
    {
        const KyInt64 a = DotProduct(A - O, axis);
        xmin = Kaim::FastMin(a, 0LL);
        xmax = Kaim::FastMax(a, 0LL);
    }

    KY_INLINE static void Get2AndOrig(const Vec2f& A, const Vec2f& B, const Vec2f& O, const Vec2f& axis, KyFloat32& xmin, KyFloat32& xmax)
    {
        const KyFloat32 a = DotProduct(A - O, axis);
        const KyFloat32 b = DotProduct(B - O, axis);
        xmin = Kaim::Min(a, b, 0.0f);
        xmax = Kaim::Max(a, b, 0.0f);
    }

};

}