88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
// Copyright (C) 2002-2009 Nikolaus Gebhardt
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
// The code for the TerrainTriangleSelector is based on the GeoMipMapSelector
|
|
// developed by Spintz. He made it available for Irrlicht and allowed it to be
|
|
// distributed under this licence. I only modified some parts. A lot of thanks go to him.
|
|
|
|
#ifndef __C_TERRAIN_TRIANGLE_SELECTOR_H__
|
|
#define __C_TERRAIN_TRIANGLE_SELECTOR_H__
|
|
|
|
#include "ITriangleSelector.h"
|
|
#include "irrArray.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace scene
|
|
{
|
|
|
|
class ITerrainSceneNode;
|
|
|
|
//! Triangle Selector for the TerrainSceneNode
|
|
//! The code for the TerrainTriangleSelector is based on the GeoMipMapSelector
|
|
//! developed by Spintz. He made it available for Irrlicht and allowed it to be
|
|
//! distributed under this licence. I only modified some parts. A lot of thanks go to him.
|
|
class CTerrainTriangleSelector : public ITriangleSelector
|
|
{
|
|
public:
|
|
|
|
//! Constructs a selector based on an IGeoMipMapSceneNode
|
|
CTerrainTriangleSelector(ITerrainSceneNode* node, s32 LOD);
|
|
|
|
//! Destructor
|
|
virtual ~CTerrainTriangleSelector();
|
|
|
|
//! Clears and sets triangle data
|
|
virtual void setTriangleData (ITerrainSceneNode* node, s32 LOD);
|
|
|
|
//! Gets all triangles.
|
|
void getTriangles(core::triangle3df* triangles, s32 arraySize, s32& outTriangleCount,
|
|
const core::matrix4* transform=0) const;
|
|
|
|
//! Gets all triangles which lie within a specific bounding box.
|
|
void getTriangles(core::triangle3df* triangles, s32 arraySize, s32& outTriangleCount,
|
|
const core::aabbox3d<f32>& box, const core::matrix4* transform=0) const;
|
|
|
|
//! Gets all triangles which have or may have contact with a 3d line.
|
|
virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
|
|
s32& outTriangleCount, const core::line3d<f32>& line,
|
|
const core::matrix4* transform=0) const;
|
|
|
|
//! Returns amount of all available triangles in this selector
|
|
virtual s32 getTriangleCount() const;
|
|
|
|
private:
|
|
|
|
friend class CTerrainSceneNode;
|
|
|
|
struct SGeoMipMapTrianglePatch
|
|
{
|
|
core::array<core::triangle3df> Triangles;
|
|
s32 NumTriangles;
|
|
core::aabbox3df Box;
|
|
};
|
|
|
|
struct SGeoMipMapTrianglePatches
|
|
{
|
|
SGeoMipMapTrianglePatches() :
|
|
NumPatches(0), TotalTriangles(0)
|
|
{
|
|
}
|
|
|
|
core::array<SGeoMipMapTrianglePatch> TrianglePatchArray;
|
|
s32 NumPatches;
|
|
u32 TotalTriangles;
|
|
};
|
|
|
|
ITerrainSceneNode* SceneNode;
|
|
SGeoMipMapTrianglePatches TrianglePatches;
|
|
};
|
|
|
|
} // end namespace scene
|
|
} // end namespace irr
|
|
|
|
|
|
#endif // __C_TERRAIN_TRIANGLE_SELECTOR_H__
|
|
|