src/shared/vmap/BaseModel.h

   1 /*
   2  * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef _BASEMODEL_H_
  20 #define _BASEMODEL_H_
  21
  22 #include <G3D/AABox.h>
  23 #include <G3D/Vector3.h>
  24
  25 #include "ShortVector.h"
  26 #include "ShortBox.h"
  27 #include "TreeNode.h"
  28
  29 /**
  30 A model is based on triangles. To be able to check intersection we need a BSP-Tree.
  31 This Class holds the array of triangles as well as the management information for the BSP-Tree.
  32 Both are stored in static array and index information is used instead of pointers.
  33 Therefore we can load the whole object as a binary block.
  34
  35 The vectors are relative to a base position.
  36 */
  37
  38 namespace VMAP
  39 {
  40
  41     class BaseModel
  42     {
  43         protected:
  44             TriangleBox *iTriangles;
  45             TreeNode *iTreeNodes;
  46             unsigned int iNTriangles;
  47             unsigned int iNNodes;
  48             G3D::Vector3 iBasePosition;
  49         public:
  50             BaseModel() { iNTriangles = 0; iNNodes = 0; iTriangles = 0; iTreeNodes = 0;};
  51             BaseModel(unsigned int pNNodes  , TreeNode* pTreeNode, unsigned int  pNTriangles, TriangleBox* pTriangleBox)
  52             {
  53                 iNNodes = pNNodes; iNTriangles = pNTriangles; iTriangles = pTriangleBox; iTreeNodes = pTreeNode;
  54             };
  55             BaseModel(unsigned int pNNodes, unsigned int  pNTriangles);
  56
  57             // destructor does nothing ! The subclass controles the array memory and knows when to free it
  58             ~BaseModel() {}
  59
  60             void free();
  61             void init(unsigned int pNNodes, unsigned int  pNTriangles);
  62
  63             void getMember(G3D::Array<TriangleBox>& pMembers);
  64
  65             inline const TriangleBox& getTriangle(int pPos) const { return(iTriangles[pPos]); }
  66             inline       TriangleBox& getTriangle(int pPos)       { return(iTriangles[pPos]); }
  67
  68             inline void setTriangle(const TriangleBox& pTriangleBox, int pPos) { iTriangles[pPos] = pTriangleBox; }
  69
  70             inline const TreeNode& getTreeNode(int pPos) const { return(getTreeNodes()[pPos]); }
  71             inline       TreeNode& getTreeNode(int pPos)       { return(getTreeNodes()[pPos]); }
  72
  73             inline void setTreeNode(const TreeNode& pTreeNode, int pPos) { getTreeNodes()[pPos] = pTreeNode; }
  74
  75             inline void setBasePosition(const G3D::Vector3& pBasePosition) { iBasePosition = pBasePosition; }
  76
  77             inline const G3D::Vector3& getBasePosition() const { return(iBasePosition); }
  78
  79             inline unsigned int getNNodes() const { return(iNNodes); }
  80             inline unsigned int getNTriangles() const { return(iNTriangles); }
  81
  82             inline void setNNodes(unsigned int pNNodes)  { iNNodes = pNNodes; }
  83             inline void setNTriangles(unsigned int  pNTriangles)  { iNTriangles = pNTriangles; }
  84
  85             inline void setTriangleArray(TriangleBox *pGlobalTriangleArray ) { iTriangles = pGlobalTriangleArray ; }
  86             inline void setTreeNodeArray(TreeNode *pGlobalTreeNodeArray ) { iTreeNodes = pGlobalTreeNodeArray ; }
  87
  88             inline TriangleBox* getTriangles() const { return(iTriangles); }
  89
  90             inline TreeNode* getTreeNodes() const{ return(iTreeNodes); }
  91
  92             inline size_t getMemUsage() { return(iNTriangles * sizeof(TriangleBox) + iNNodes * sizeof(TreeNode) + sizeof(BaseModel)); }
  93
  94             void intersect(const G3D::AABox& pBox, const G3D::Ray& pRay, float& pMaxDist, G3D::Vector3& pOutLocation, G3D::Vector3& pOutNormal) const;
  95             bool intersect(const G3D::AABox& pBox, const G3D::Ray& pRay, float& pMaxDist) const;
  96     };
  97
  98 }
  99 #endif                                                      /*BASEMODEL_H_*/