ITriangleSelector.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 NIRT_I_TRIANGLE_SELECTOR_HPP_INCLUDED
#define NIRT_I_TRIANGLE_SELECTOR_HPP_INCLUDED
 
#include <nirtcpp/core/engine/IReferenceCounted.hpp>
#include <nirtcpp/core/engine/triangle3d.hpp>
#include <nirtcpp/core/engine/aabbox3d.hpp>
#include <nirtcpp/core/engine/matrix4.hpp>
#include <nirtcpp/core/engine/line3d.hpp>
#include <nirtcpp/core/engine/irrArray.hpp>
 
namespace nirt
{
namespace scene
{
 
class ISceneNode;
class ITriangleSelector;
class IMeshBuffer;
 
 
class SCollisionTriangleRange
{
public:
    SCollisionTriangleRange()
        : RangeStart(0), RangeSize(0)
        , Selector(0), SceneNode(0)
        , MeshBuffer(0), MaterialIndex(0)
    {}
 
 
    bool isIndexInRange(nirt::u32 triangleIndex) const
    {
        return triangleIndex >= RangeStart && triangleIndex < RangeStart+RangeSize;
    }
 
    nirt::u32 RangeStart;
 
    nirt::u32 RangeSize;
 
    const ITriangleSelector* Selector;
 
    ISceneNode* SceneNode;
 
    const IMeshBuffer* MeshBuffer;
 
    nirt::u32 MaterialIndex;
};
 
 
class ITriangleSelector : public virtual IReferenceCounted
{
public:
 
    virtual s32 getTriangleCount() const = 0;
 
 
    virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
        s32& outTriangleCount, const core::matrix4* transform=0,
        bool useNodeTransform=true,
        nirt::core::array<SCollisionTriangleRange>* outTriangleInfo=0) const = 0;
 
 
    virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
        s32& outTriangleCount, const core::aabbox3d<f32>& box,
        const core::matrix4* transform=0, bool useNodeTransform=true,
        nirt::core::array<SCollisionTriangleRange>* outTriangleInfo=0) const = 0;
 
 
    virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
        s32& outTriangleCount, const core::line3d<f32>& line,
        const core::matrix4* transform=0, bool useNodeTransform=true,
        nirt::core::array<SCollisionTriangleRange>* outTriangleInfo=0) const = 0;
 
 
    virtual u32 getSelectorCount() const = 0;
 
 
    virtual ITriangleSelector* getSelector(u32 index) = 0;
 
 
    virtual const ITriangleSelector* getSelector(u32 index) const = 0;
 
 
    virtual ISceneNode* getSceneNodeForTriangle(u32 triangleIndex) const = 0;
};
 
} // end namespace scene
} // end namespace nirt
 
#endif