364 lines
11 KiB
C
364 lines
11 KiB
C
|
/****************************************************************************
|
||
|
|
Copyright (c) 2011-2013,WebJet Business Division,CYOU
|
||
|
|
|
||
|
|
http://www.genesis-3d.com.cn
|
||
|
|
|
||
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
of this software and associated documentation files (the "Software"), to deal
|
||
|
|
in the Software without restriction, including without limitation the rights
|
||
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
copies of the Software, and to permit persons to whom the Software is
|
||
|
|
furnished to do so, subject to the following conditions:
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be included in
|
||
|
|
all copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
THE SOFTWARE.
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#ifndef __TerrainNode_H__
|
||
|
|
#define __TerrainNode_H__
|
||
|
|
|
||
|
|
#include "core/refcounted.h"
|
||
|
|
#include "math/bbox.h"
|
||
|
|
#include "resource/meshres.h"
|
||
|
|
#include "terrainsystem/TerrainDataSource.h"
|
||
|
|
#include "terrainfeature/components/TerrainRenderObject.h"
|
||
|
|
|
||
|
|
namespace Graphic
|
||
|
|
{
|
||
|
|
class RenderScene;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace App
|
||
|
|
{
|
||
|
|
//base enum and struct=============================================================================
|
||
|
|
enum NodeNeighborDir
|
||
|
|
{
|
||
|
|
eLeftNeighbor = 0,
|
||
|
|
eRightNeighbor = 1,
|
||
|
|
eUpNeighbor = 2,
|
||
|
|
eDownNeighbor = 3,
|
||
|
|
eNeighborCount = 4,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum NodeChildDir
|
||
|
|
{
|
||
|
|
eLeftUpChild = 0,
|
||
|
|
eRightUpChild = 1,
|
||
|
|
eLeftDownChild = 2,
|
||
|
|
eRightDownChild = 3,
|
||
|
|
eChildCount = 4,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum NodeDrawMode
|
||
|
|
{
|
||
|
|
eNodeDrawParent = 0,
|
||
|
|
eNodeDrawChild = 1,
|
||
|
|
eNodeDrawSelf = 2
|
||
|
|
};
|
||
|
|
|
||
|
|
// veritce buffer
|
||
|
|
struct FVF_TERRAIN
|
||
|
|
{
|
||
|
|
float x, y, z; //position
|
||
|
|
float u, v; //texcoord
|
||
|
|
float nx, ny, nz; //normal
|
||
|
|
};
|
||
|
|
|
||
|
|
// a unit grid
|
||
|
|
struct SRenderNormal
|
||
|
|
{
|
||
|
|
int haveTriangleIdx[2]; // one unit grid contains 2 triangle
|
||
|
|
};
|
||
|
|
typedef SRenderNormal* TSRenderNormal;
|
||
|
|
|
||
|
|
|
||
|
|
//=============================================================================
|
||
|
|
class TerrainNodeTraverser;
|
||
|
|
class TerrainRenderObject;
|
||
|
|
class TerrainNode
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
TerrainNode();
|
||
|
|
~TerrainNode();
|
||
|
|
void Reset();
|
||
|
|
|
||
|
|
void ChangeRenderScene(Graphic::RenderScene* rnsc);
|
||
|
|
|
||
|
|
//-------------------For Traverser Pattern-----------------------------------------------------
|
||
|
|
/// accept NV's Apply function
|
||
|
|
void Accept(TerrainNodeTraverser& nv);
|
||
|
|
|
||
|
|
/** Traverse upwards : calls parents' accept method with NodeTraverser.*/
|
||
|
|
void TraverseParent(TerrainNodeTraverser& nv);
|
||
|
|
|
||
|
|
/** Traverse downwards : calls children's accept method with NodeTraverser.*/
|
||
|
|
void TraverseChilds(TerrainNodeTraverser& nv);
|
||
|
|
|
||
|
|
/** Traverse Neighbor : calls Neighbor's accept method with NodeTraverser.*/
|
||
|
|
void TraverseNeighbor(TerrainNodeTraverser& nv);
|
||
|
|
|
||
|
|
//----------------------basic property--------------------------------------------------
|
||
|
|
|
||
|
|
const Math::bbox& GetLocalBoundingBox() const;
|
||
|
|
void SetLocalBoundingBox(const Math::bbox& bb);
|
||
|
|
RenderBase::PrimitiveTopology::Code GetPrimitiveTopology(void)const ;
|
||
|
|
bool IsUseBaseMap(void) const ;
|
||
|
|
void SetUseBaseMap(bool b);
|
||
|
|
void SetNodeDrawMode( NodeDrawMode v);
|
||
|
|
NodeDrawMode GetNodeDrawMode(void) const;
|
||
|
|
float GetGeometryError(void) const;
|
||
|
|
void SetGeometryError(float h);
|
||
|
|
bool HaveHole();
|
||
|
|
void SetHole(bool b);
|
||
|
|
|
||
|
|
//------------------neighbor and parent-child relationship------------------------------------------------------
|
||
|
|
TerrainNode* GetParentNode()const ;
|
||
|
|
void SetParentNode(TerrainNode* p);
|
||
|
|
TerrainNode* GetChildNode(int dir) const;
|
||
|
|
void SetChildNode(TerrainNode* child, int dir);
|
||
|
|
TerrainNode* GetNeighborNode(int dir) const;
|
||
|
|
void SetNeighborNode(TerrainNode* neighbor, int dir);
|
||
|
|
|
||
|
|
//---------------------------Render---------------------------------------------
|
||
|
|
/// Set need render
|
||
|
|
void SetRenderEnable(bool b) ;
|
||
|
|
bool GetRenderEnable(void);
|
||
|
|
const GPtr<TerrainRenderObject>& GetRenderObject() const;
|
||
|
|
void SetRenderObject(const GPtr<TerrainRenderObject>& renderObj);
|
||
|
|
void SetEdgeMask( int mask );
|
||
|
|
int GetEdgeMask(void) const;
|
||
|
|
int ComputeNodeEdgeMask() ;
|
||
|
|
const RenderBase::PrimitiveHandle& GetPrimitiveHandle() const ;
|
||
|
|
void RequestBuildPritiveHandle();
|
||
|
|
bool IsNeedBulidPritiveHandle() const ;
|
||
|
|
|
||
|
|
/// if need, build PrimitiveHandle
|
||
|
|
void BuildPrimitiveHandleIfNeed(const GPtr<Terrain::TerrainDataSource>& terrainDataSource);
|
||
|
|
|
||
|
|
/// Force build PrimitiveHandle, slow! use it carefully!
|
||
|
|
void ForceBuildPrimitiveHandle(const GPtr<Terrain::TerrainDataSource>& terrainDataSource);
|
||
|
|
|
||
|
|
|
||
|
|
//--------------------------Ray Intersect----------------------------------------------
|
||
|
|
const Resources::PositionData::Elem* GetPositionData() const;
|
||
|
|
|
||
|
|
Resources::Index16Container::value_type* GetIndexData() const;
|
||
|
|
|
||
|
|
SizeT GetIndexDataCount() const;
|
||
|
|
|
||
|
|
SizeT GetPostionDataCount() const;
|
||
|
|
#ifdef __GENESIS_EDITOR__
|
||
|
|
const Resources::TexCoordData::Elem* GetTexCoorData() const;
|
||
|
|
const Resources::NormalData::Elem* GetNormalData() const;
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
protected:
|
||
|
|
int _ComputeNeedSutureEdgeMask(const TerrainNode &node, TerrainNode &nodeAnalysis);
|
||
|
|
|
||
|
|
// Use standard grid to build edge
|
||
|
|
void _BuildPrimitiveHandle_Reqular(const GPtr<Terrain::TerrainDataSource>& terrainDataSource);
|
||
|
|
void _BuildOneGridIdxData(Util::Array<uint16>& indexData, int xx,int yy);
|
||
|
|
void _BuildOneGridIdxDataWithHole(Util::Array<uint16>& indexData, int xx,int yy);
|
||
|
|
void _FixHeightAndNormal(FVF_TERRAIN* heightArray,Resources::PositionData& posData);
|
||
|
|
#ifdef __GENESIS_EDITOR__
|
||
|
|
void _SaveUVAndNormal(const FVF_TERRAIN* verticeData);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
public:
|
||
|
|
int x;
|
||
|
|
int y;
|
||
|
|
int level;
|
||
|
|
int bundleIndex;
|
||
|
|
int m_levelDif[eNeighborCount];
|
||
|
|
bool m_NeedRebuild;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
bool m_RenderEnable; // enable render
|
||
|
|
NodeDrawMode m_DrawMode; // node's LOD draw mode
|
||
|
|
float m_GeometryError; // node's bundle geometry error
|
||
|
|
Math::bbox m_LocalBoundingBox; // local Bound
|
||
|
|
bool m_UseBaseMap; // whether or not use base map
|
||
|
|
int m_EdgeMask; // show the edge suture status. 0: sutured. 1: need suture.
|
||
|
|
bool m_bHaveHole;
|
||
|
|
|
||
|
|
RenderBase::PrimitiveHandle m_PrimitiveHandle; // render handle
|
||
|
|
bool m_NeedBuildHandle; // whether or not need build PrimitiveHandle
|
||
|
|
GPtr<TerrainRenderObject> m_RenderObject; // Node's renderObject
|
||
|
|
TerrainNode* m_Neighbors[eNeighborCount];
|
||
|
|
TerrainNode* m_Childs[eChildCount];
|
||
|
|
TerrainNode* m_Parent;
|
||
|
|
|
||
|
|
/// Use for ray intersect
|
||
|
|
Resources::PositionData m_PositionData;
|
||
|
|
Resources::Index16Container m_IndexData;
|
||
|
|
#ifdef __GENESIS_EDITOR__
|
||
|
|
Resources::TexCoordData m_texUV;
|
||
|
|
Resources::NormalData m_normalData;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
//inline method implement=====================================================
|
||
|
|
inline const Math::bbox& TerrainNode::GetLocalBoundingBox() const{
|
||
|
|
return m_LocalBoundingBox;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline RenderBase::PrimitiveTopology::Code TerrainNode::GetPrimitiveTopology(void) const{
|
||
|
|
return RenderBase::PrimitiveTopology::TriangleList;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool TerrainNode::IsUseBaseMap(void) const{
|
||
|
|
return m_UseBaseMap;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetUseBaseMap(bool b){
|
||
|
|
m_UseBaseMap = b;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetNodeDrawMode( NodeDrawMode v){
|
||
|
|
m_DrawMode = v;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline NodeDrawMode TerrainNode::GetNodeDrawMode(void) const{
|
||
|
|
return m_DrawMode;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline float TerrainNode::GetGeometryError(void) const{
|
||
|
|
return m_GeometryError;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetGeometryError(float h){
|
||
|
|
m_GeometryError = h;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool TerrainNode::HaveHole(){
|
||
|
|
return m_bHaveHole;
|
||
|
|
}
|
||
|
|
inline void TerrainNode::SetHole(bool b){
|
||
|
|
m_bHaveHole = b;
|
||
|
|
}
|
||
|
|
|
||
|
|
//------------------neighbor and parent-child relationship------------------------------------------------------
|
||
|
|
inline TerrainNode* TerrainNode::GetParentNode() const{
|
||
|
|
return m_Parent;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetParentNode(TerrainNode* p){
|
||
|
|
m_Parent = p;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline TerrainNode* TerrainNode::GetChildNode(int dir) const{
|
||
|
|
n_assert(dir >=eLeftUpChild && dir < eChildCount);
|
||
|
|
return m_Childs[dir];
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetChildNode(TerrainNode* child, int dir){
|
||
|
|
n_assert(dir >=eLeftUpChild && dir < eChildCount);
|
||
|
|
m_Childs[dir] = child;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline TerrainNode* TerrainNode::GetNeighborNode(int dir) const{
|
||
|
|
n_assert(dir >=eLeftNeighbor && dir < eNeighborCount);
|
||
|
|
return m_Neighbors[dir];
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetNeighborNode(TerrainNode* neighbor, int dir){
|
||
|
|
n_assert(dir >=eLeftNeighbor && dir < eNeighborCount);
|
||
|
|
m_Neighbors[dir] = neighbor;
|
||
|
|
}
|
||
|
|
|
||
|
|
//---------------------------Render---------------------------------------------
|
||
|
|
/// Set need render
|
||
|
|
inline void TerrainNode::SetRenderEnable(bool b) {
|
||
|
|
m_RenderEnable = b;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool TerrainNode::GetRenderEnable(void){
|
||
|
|
return m_RenderEnable;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline const GPtr<TerrainRenderObject>& TerrainNode::GetRenderObject() const{
|
||
|
|
return m_RenderObject;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::SetRenderObject(const GPtr<TerrainRenderObject>& renderObj){
|
||
|
|
m_RenderObject = renderObj;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Set edge's suture mask. When suture changed, call RequestBuildPritiveHandle to rebuild
|
||
|
|
inline void TerrainNode::SetEdgeMask( int mask ){
|
||
|
|
m_EdgeMask = mask;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline int TerrainNode::GetEdgeMask(void) const{
|
||
|
|
return m_EdgeMask;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline const RenderBase::PrimitiveHandle& TerrainNode::GetPrimitiveHandle() const{
|
||
|
|
return m_PrimitiveHandle;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void TerrainNode::RequestBuildPritiveHandle(){
|
||
|
|
m_NeedBuildHandle = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool TerrainNode::IsNeedBulidPritiveHandle() const {
|
||
|
|
return m_NeedBuildHandle;
|
||
|
|
}
|
||
|
|
inline const Resources::PositionData::Elem* TerrainNode::GetPositionData() const{
|
||
|
|
if ( m_PositionData.IsEmpty() )
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
return &m_PositionData[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
inline Resources::Index16Container::value_type* TerrainNode::GetIndexData() const{
|
||
|
|
if ( m_IndexData.IsEmpty() )
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
return &m_IndexData[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
inline SizeT TerrainNode::GetIndexDataCount() const{
|
||
|
|
return m_IndexData.Size();
|
||
|
|
}
|
||
|
|
|
||
|
|
inline SizeT TerrainNode::GetPostionDataCount() const{
|
||
|
|
return m_PositionData.Size();
|
||
|
|
}
|
||
|
|
#ifdef __GENESIS_EDITOR__
|
||
|
|
inline const Resources::TexCoordData::Elem*
|
||
|
|
TerrainNode::GetTexCoorData() const{
|
||
|
|
if ( m_texUV.IsEmpty() )
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
return &m_texUV[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
inline const Resources::NormalData::Elem*
|
||
|
|
TerrainNode::GetNormalData() const{
|
||
|
|
if ( m_normalData.IsEmpty() )
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
return &m_normalData[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // __TerrainNode_H__
|