---

---

AI_SDB_SpatialElements.h

Go to the documentation of this file.

#ifndef AI_SDB_SPATIALELEMENT_H
#define AI_SDB_SPATIALELEMENT_H


#include "AI_SDB_VisitorBase.h"
#include "../utils/AI_Ref.h"


class AI_SDB_SpatialSector;

//--------------------------------------------------------------------
class AI_SDB_SpatialElement
{
public:
    enum {
        // extend with your own element types in a subclass
        N_SPATIAL_PORTAL     = (1<<0), 
        N_SPATIAL_HIERARCHY  = (1<<1), 
        N_SPATIAL_OCCLUDER   = (1<<2), 
        N_SPATIAL_AABB       = (1<<3), 
    };
    typedef int AI_SDB_SpatialElementType;

    AI_SDB_SpatialElement(AI_SDB_SpatialElementType starttype=0) : m_spatialtype(starttype), m_AABB(), m_ptr(NULL) {};
    AI_SDB_SpatialElement(AI_SDB_SpatialElementType starttype, const AI_BBox &initbbox) 
        : m_spatialtype(starttype | N_SPATIAL_AABB), m_AABB(initbbox), m_ptr(NULL) { };
    virtual ~AI_SDB_SpatialElement() { }

    AI_SDB_SpatialElementType GetSpatialType() const { return m_spatialtype; }

    bool HasOccluder() const { return (m_spatialtype & N_SPATIAL_OCCLUDER) != 0; }

    bool HasAABB() const  { return (m_spatialtype & N_SPATIAL_AABB)     != 0; }
    AI_BBox GetAABB() const { return m_AABB; }
    void SetAABB(const AI_BBox &newbbox) { m_AABB=newbbox; }

    void *GetPtr() const { return m_ptr; }
    void SetPtr(void *ptr) { m_ptr = ptr; }

    virtual void Accept(AI_SDB_VisibilityVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);
    virtual void Accept(AI_SDB_SpatialVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);
    virtual void Accept(AI_SDB_OcclusionVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);

protected:
    int m_spatialtype;
    AI_BBox m_AABB;
    void *m_ptr;
};

class AI_SDB_BBoxSpatialElement : public AI_SDB_SpatialElement
{
public:
    AI_SDB_BBoxSpatialElement(AI_SDB_SpatialElementType t, const AI_BBox &initialspace) : AI_SDB_SpatialElement(t | N_SPATIAL_AABB, initialspace) { }
    AI_SDB_BBoxSpatialElement(const AI_BBox &initialspace) : AI_SDB_SpatialElement(N_SPATIAL_AABB, initialspace) { }
    ~AI_SDB_BBoxSpatialElement();

    void UpdateBBox(const AI_BBox &newbox) { m_AABB = newbox; }

    virtual void Accept(AI_SDB_VisibilityVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);
    virtual void Accept(AI_SDB_SpatialVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);
    virtual void Accept(AI_SDB_OcclusionVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);

protected:
};

//---------------------------------------------------------------------
class AI_SDB_SpatialPortalElement : public AI_SDB_BBoxSpatialElement {
public:
    AI_SDB_SpatialPortalElement(const AI_BBox &initbbox, AI_SDB_SpatialSector *parentsector, AI_SDB_SpatialSector *connecttosector) : 
        AI_SDB_BBoxSpatialElement(N_SPATIAL_PORTAL, initbbox), m_parentsector(parentsector), m_otherside(connecttosector)
    {
    }

    ~AI_SDB_SpatialPortalElement() {
    }

    virtual void Accept(AI_SDB_VisibilityVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);
    virtual void Accept(AI_SDB_SpatialVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);
protected:
    AI_Ref<AI_SDB_SpatialSector> m_parentsector, m_otherside;
};


//--------------------------------------------------------------------
class AI_SDB_SpatialHierarchyElement : public AI_SDB_SpatialElement {
public:

    AI_SDB_SpatialHierarchyElement() : AI_SDB_SpatialElement(AI_SDB_SpatialElement::N_SPATIAL_HIERARCHY)
    {
    }
    ~AI_SDB_SpatialHierarchyElement() {
    }

    // note you will need to subclass and override the Accept() methods!

protected:
};

//----------------------------------------------------------------------
class AI_SDB_SpatialOccluderElement : public AI_SDB_BBoxSpatialElement
{

public:
    AI_SDB_SpatialOccluderElement(const AI_BBox &box)
        : AI_SDB_BBoxSpatialElement(AI_SDB_SpatialElement::N_SPATIAL_OCCLUDER, box)  { }

    virtual ~AI_SDB_SpatialOccluderElement() {
    }

    void Accept(AI_SDB_OcclusionVisitor &visitor, int recursiondepth, AI_SDB_VisitorFlags flags);

protected:
};

#endif

---

InExIn pages are hosted by
InExIn documentation generated by doxygen at Tue Dec 18 12:55:27 2007