S3DVertex.hpp

// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in nirtcpp/nirtcpp.hpp
 
#ifndef S_3D_VERTEX_HPP_INCLUDED
#define S_3D_VERTEX_HPP_INCLUDED
 
#include <nirtcpp/core/engine/vector3d.hpp>
#include <nirtcpp/core/engine/vector2d.hpp>
#include <nirtcpp/core/engine/SColor.hpp>
 
namespace nirt
{
namespace video
{
 
enum E_VERTEX_TYPE
{
    EVT_STANDARD = 0,
 
 
    EVT_2TCOORDS,
 
 
    EVT_TANGENTS
};
 
const char* const sBuiltInVertexTypeNames[] =
{
    "standard",
    "2tcoords",
    "tangents",
    0
};
 
class S3DVertex
{
public:
    S3DVertex() : Color(0xffffffff) {}
 
    S3DVertex(f32 x, f32 y, f32 z, f32 nx, f32 ny, f32 nz, SColor c, f32 tu, f32 tv)
        : Pos(x,y,z), Normal(nx,ny,nz), Color(c), TCoords(tu,tv) {}
 
    S3DVertex(const core::vector3df& pos, const core::vector3df& normal,
        SColor color, const core::vector2d<f32>& tcoords)
        : Pos(pos), Normal(normal), Color(color), TCoords(tcoords) {}
 
public:
    core::vector3df Pos;
 
    core::vector3df Normal;
 
    SColor Color;
 
    core::vector2d<f32> TCoords;
 
public:
    bool operator==(const S3DVertex& other) const
    {
        return ((Pos == other.Pos) && (Normal == other.Normal) &&
            (Color == other.Color) && (TCoords == other.TCoords));
    }
 
    bool operator!=(const S3DVertex& other) const
    {
        return ((Pos != other.Pos) || (Normal != other.Normal) ||
            (Color != other.Color) || (TCoords != other.TCoords));
    }
 
    bool operator<(const S3DVertex& other) const
    {
        return ((Pos < other.Pos) ||
                ((Pos == other.Pos) && (Normal < other.Normal)) ||
                ((Pos == other.Pos) && (Normal == other.Normal) && (Color < other.Color)) ||
                ((Pos == other.Pos) && (Normal == other.Normal) && (Color == other.Color) && (TCoords < other.TCoords)));
    }
 
    static E_VERTEX_TYPE getType()
    {
        return EVT_STANDARD;
    }
 
    //\param d d=0 returns other, d=1 returns this, values between interpolate.
    S3DVertex getInterpolated(const S3DVertex& other, f32 d)
    {
        d = core::clamp(d, 0.0f, 1.0f);
        return S3DVertex(Pos.getInterpolated(other.Pos, d),
                Normal.getInterpolated(other.Normal, d),
                Color.getInterpolated(other.Color, d),
                TCoords.getInterpolated(other.TCoords, d));
    }
};
 
 
 
class S3DVertex2TCoords : public S3DVertex
{
public:
    S3DVertex2TCoords() : S3DVertex() {}
 
    S3DVertex2TCoords(f32 x, f32 y, f32 z, SColor c, f32 tu, f32 tv, f32 tu2, f32 tv2)
        : S3DVertex(x,y,z, 0.0f, 0.0f, 0.0f, c, tu,tv), TCoords2(tu2,tv2) {}
 
    S3DVertex2TCoords(const core::vector3df& pos, SColor color,
        const core::vector2d<f32>& tcoords, const core::vector2d<f32>& tcoords2)
        : S3DVertex(pos, core::vector3df(), color, tcoords), TCoords2(tcoords2) {}
 
    S3DVertex2TCoords(const core::vector3df& pos, const core::vector3df& normal, const SColor& color,
        const core::vector2d<f32>& tcoords, const core::vector2d<f32>& tcoords2)
        : S3DVertex(pos, normal, color, tcoords), TCoords2(tcoords2) {}
 
    S3DVertex2TCoords(f32 x, f32 y, f32 z, f32 nx, f32 ny, f32 nz, SColor c, f32 tu, f32 tv, f32 tu2, f32 tv2)
        : S3DVertex(x,y,z, nx,ny,nz, c, tu,tv), TCoords2(tu2,tv2) {}
 
    S3DVertex2TCoords(f32 x, f32 y, f32 z, f32 nx, f32 ny, f32 nz, SColor c, f32 tu, f32 tv)
        : S3DVertex(x,y,z, nx,ny,nz, c, tu,tv), TCoords2(tu,tv) {}
 
    S3DVertex2TCoords(const core::vector3df& pos, const core::vector3df& normal,
        SColor color, const core::vector2d<f32>& tcoords)
        : S3DVertex(pos, normal, color, tcoords), TCoords2(tcoords) {}
 
    S3DVertex2TCoords(const S3DVertex& o) : S3DVertex(o) {}
 
public:
    core::vector2d<f32> TCoords2;
 
public:
    bool operator==(const S3DVertex2TCoords& other) const
    {
        return ((static_cast<S3DVertex>(*this)==static_cast<const S3DVertex&>(other)) &&
            (TCoords2 == other.TCoords2));
    }
 
    bool operator!=(const S3DVertex2TCoords& other) const
    {
        return ((static_cast<S3DVertex>(*this)!=static_cast<const S3DVertex&>(other)) ||
            (TCoords2 != other.TCoords2));
    }
 
    bool operator<(const S3DVertex2TCoords& other) const
    {
        return ((static_cast<S3DVertex>(*this) < other) ||
                ((static_cast<S3DVertex>(*this) == static_cast<const S3DVertex&>(other)) && (TCoords2 < other.TCoords2)));
    }
 
    static E_VERTEX_TYPE getType()
    {
        return EVT_2TCOORDS;
    }
 
    //\param d d=0 returns other, d=1 returns this, values between interpolate.
    S3DVertex2TCoords getInterpolated(const S3DVertex2TCoords& other, f32 d)
    {
        d = core::clamp(d, 0.0f, 1.0f);
        return S3DVertex2TCoords(Pos.getInterpolated(other.Pos, d),
                Normal.getInterpolated(other.Normal, d),
                Color.getInterpolated(other.Color, d),
                TCoords.getInterpolated(other.TCoords, d),
                TCoords2.getInterpolated(other.TCoords2, d));
    }
};
 
 
 
class S3DVertexTangents : public S3DVertex
{
public:
    S3DVertexTangents() : S3DVertex() { }
 
    S3DVertexTangents(f32 x, f32 y, f32 z, f32 nx=0.0f, f32 ny=0.0f, f32 nz=0.0f,
            SColor c = 0xFFFFFFFF, f32 tu=0.0f, f32 tv=0.0f,
            f32 tanx=0.0f, f32 tany=0.0f, f32 tanz=0.0f,
            f32 bx=0.0f, f32 by=0.0f, f32 bz=0.0f)
        : S3DVertex(x,y,z, nx,ny,nz, c, tu,tv), Tangent(tanx,tany,tanz), Binormal(bx,by,bz) { }
 
    S3DVertexTangents(const core::vector3df& pos, SColor c,
        const core::vector2df& tcoords)
        : S3DVertex(pos, core::vector3df(), c, tcoords) { }
 
    S3DVertexTangents(const core::vector3df& pos,
        const core::vector3df& normal, SColor c,
        const core::vector2df& tcoords,
        const core::vector3df& tangent=core::vector3df(),
        const core::vector3df& binormal=core::vector3df())
        : S3DVertex(pos, normal, c, tcoords), Tangent(tangent), Binormal(binormal) { }
 
    S3DVertexTangents(const S3DVertex& o) : S3DVertex(o) {}
 
public:
    core::vector3df Tangent;
 
    core::vector3df Binormal;
 
public:
    bool operator==(const S3DVertexTangents& other) const
    {
        return ((static_cast<S3DVertex>(*this)==static_cast<const S3DVertex&>(other)) &&
            (Tangent == other.Tangent) &&
            (Binormal == other.Binormal));
    }
 
    bool operator!=(const S3DVertexTangents& other) const
    {
        return ((static_cast<S3DVertex>(*this)!=static_cast<const S3DVertex&>(other)) ||
            (Tangent != other.Tangent) ||
            (Binormal != other.Binormal));
    }
 
    bool operator<(const S3DVertexTangents& other) const
    {
        return ((static_cast<S3DVertex>(*this) < other) ||
                ((static_cast<S3DVertex>(*this) == static_cast<const S3DVertex&>(other)) && (Tangent < other.Tangent)) ||
                ((static_cast<S3DVertex>(*this) == static_cast<const S3DVertex&>(other)) && (Tangent == other.Tangent) && (Binormal < other.Binormal)));
    }
 
    static E_VERTEX_TYPE getType()
    {
        return EVT_TANGENTS;
    }
 
    S3DVertexTangents getInterpolated(const S3DVertexTangents& other, f32 d)
    {
        d = core::clamp(d, 0.0f, 1.0f);
        return S3DVertexTangents(Pos.getInterpolated(other.Pos, d),
                Normal.getInterpolated(other.Normal, d),
                Color.getInterpolated(other.Color, d),
                TCoords.getInterpolated(other.TCoords, d),
                Tangent.getInterpolated(other.Tangent, d),
                Binormal.getInterpolated(other.Binormal, d));
    }
};
 
 
 
inline u32 getVertexPitchFromType(E_VERTEX_TYPE vertexType)
{
    switch (vertexType)
    {
    case video::EVT_2TCOORDS:
        return sizeof(video::S3DVertex2TCoords);
    case video::EVT_TANGENTS:
        return sizeof(video::S3DVertexTangents);
    default:
        return sizeof(video::S3DVertex);
    }
}
 
} // end namespace video
} // end namespace nirt
 
#endif