mirror of https://github.com/axmolengine/axmol.git
72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/*
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Copyright (c) 2008, Luke Benstead.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PLANE_H_INCLUDED
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#define PLANE_H_INCLUDED
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#define KM_PLANE_LEFT 0
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#define KM_PLANE_RIGHT 1
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#define KM_PLANE_BOTTOM 2
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#define KM_PLANE_TOP 3
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#define KM_PLANE_NEAR 4
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#define KM_PLANE_FAR 5
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#include "platform/CCPlatformMacros.h"
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#include "utility.h"
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struct kmVec3;
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struct kmVec4;
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struct kmMat4;
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typedef struct kmPlane {
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kmScalar a, b, c, d;
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} kmPlane;
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum POINT_CLASSIFICATION {
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POINT_INFRONT_OF_PLANE = 0,
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POINT_BEHIND_PLANE,
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POINT_ON_PLANE,
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} POINT_CLASSIFICATION;
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CC_DLL const kmScalar kmPlaneDot(const kmPlane* pP, const struct kmVec4* pV);
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CC_DLL const kmScalar kmPlaneDotCoord(const kmPlane* pP, const struct kmVec3* pV);
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CC_DLL const kmScalar kmPlaneDotNormal(const kmPlane* pP, const struct kmVec3* pV);
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CC_DLL kmPlane* const kmPlaneFromPointNormal(kmPlane* pOut, const struct kmVec3* pPoint, const struct kmVec3* pNormal);
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CC_DLL kmPlane* const kmPlaneFromPoints(kmPlane* pOut, const struct kmVec3* p1, const struct kmVec3* p2, const struct kmVec3* p3);
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CC_DLL kmVec3* const kmPlaneIntersectLine(struct kmVec3* pOut, const kmPlane* pP, const struct kmVec3* pV1, const struct kmVec3* pV2);
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CC_DLL kmPlane* const kmPlaneNormalize(kmPlane* pOut, const kmPlane* pP);
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CC_DLL kmPlane* const kmPlaneScale(kmPlane* pOut, const kmPlane* pP, kmScalar s);
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CC_DLL const POINT_CLASSIFICATION kmPlaneClassifyPoint(const kmPlane* pIn, const kmVec3* pP); /** Classifies a point against a plane */
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#ifdef __cplusplus
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}
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#endif
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#endif // PLANE_H_INCLUDED
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