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// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// *
// * This program is free software: you can redistribute it and/or modify
// * it under the terms of the GNU General Public License as published by
// * the Free Software Foundation, either version 3 of the License, or
// * (at your option) any later version.
// *
// * This program is distributed in the hope that it will be useful,
// * but WITHOUT ANY WARRANTY; without even the implied warranty of
// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// * GNU General Public License for more details.
// *
// * You should have received a copy of the GNU General Public License
// * along with this program. If not, see http://www.gnu.org/licenses/.
// math3d.h
#pragma once
#include <math.h>
#include "common/struct.h"
//>>> geometry.h SegmentPoint()
D3DVECTOR SegmentDist(const D3DVECTOR &p1, const D3DVECTOR &p2, float dist);
//>>> geometry.h Intersect()
bool Intersect(D3DVECTOR a, D3DVECTOR b, D3DVECTOR c, D3DVECTOR d, D3DVECTOR e, D3DVECTOR &i);
//>>> geometry.h IntersectY()
bool IntersectY(D3DVECTOR a, D3DVECTOR b, D3DVECTOR c, D3DVECTOR &p);
//>>> geometry.h RotatePoint()
void RotatePoint(D3DVECTOR center, float angleH, float angleV, D3DVECTOR &p);
//>>> geometry.h RotatePoint2()
void RotatePoint2(D3DVECTOR center, float angleH, float angleV, D3DVECTOR &p);
//>>> geometry.h RotateView()
// TODO test & verify
D3DVECTOR RotateView(D3DVECTOR center, float angleH, float angleV, float dist);
//>>> geometry.h LookatPoint()
// TODO test & verify
D3DVECTOR LookatPoint( D3DVECTOR eye, float angleH, float angleV, float length );
//>>> vector.h Vector::Length()
float Length(const D3DVECTOR &u);
//>>> vector.h Distance()
float Length(const D3DVECTOR &a, const D3DVECTOR &b);
//>>> geometry.h DistanceProjected()
float Length2d(const D3DVECTOR &a, const D3DVECTOR &b);
//>>> vector.h Angle()
// TODO test & verify
float Angle( D3DVECTOR u, D3DVECTOR v );
//>>> vector.h CrossProduct()
D3DVECTOR Cross( D3DVECTOR u, D3DVECTOR v );
//>>> geometry.h NormalToPlane()
D3DVECTOR ComputeNormal( D3DVECTOR p1, D3DVECTOR p2, D3DVECTOR p3 );
//>>> geometry.h Transform()
// TODO test & verify
D3DVECTOR Transform(const D3DMATRIX &m, D3DVECTOR p);
//>>> geometry.h Projection()
// TODO test & verify
D3DVECTOR Projection(const D3DVECTOR &a, const D3DVECTOR &b, const D3DVECTOR &p);
// TODO
void MappingObject( D3DVERTEX2* pVertices, int nb, float scale );
// TODO
void SmoothObject( D3DVERTEX2* pVertices, int nb );
//>>> geometry.h DistanceToPlane()
float DistancePlanPoint(const D3DVECTOR &a, const D3DVECTOR &b, const D3DVECTOR &c, const D3DVECTOR &p);
//>>> geometry.h IsSamePlane()
bool IsSamePlane(D3DVECTOR *plan1, D3DVECTOR *plan2);
//>>> geometry.h LoadRotationXZYMatrix()
// TODO test & verify
void MatRotateXZY(D3DMATRIX &mat, D3DVECTOR angle);
//>>> geometry.h LoadRotationZXYMatrix()
// TODO test & verify
void MatRotateZXY(D3DMATRIX &mat, D3DVECTOR angle);
// TODO
D3DCOLOR RetColor(float intensity);
// TODO
D3DCOLOR RetColor(D3DCOLORVALUE intensity);
// TODO
D3DCOLORVALUE RetColor(D3DCOLOR intensity);
// TODO
void RGB2HSV(D3DCOLORVALUE src, ColorHSV &dest);
// TODO
void HSV2RGB(ColorHSV src, D3DCOLORVALUE &dest);
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