The Bnode Class

Subclasses: BSubTree BSpecialXform BSlotNode BSwitchNode BSplitterNode BPrimitiveNode BLitPrimitiveNode BCulledPrimitiveNode

public:
BNode( BYTE *baseAddress, BNodeType **tagListPtr );
BNode() { sibling = NULL; };
virtual ~BNode() { delete sibling; };

// We have special new and delete operators which don't do any memory operations
void *operator new(size_t, void *p) { return p; };
void *operator new(size_t n) { return malloc(n); };
void operator delete(void *) { };
// void operator delete(void *, void *) { };

// Function to identify the type of an encoded node and call the appropriate constructor
static BNode* RestorePointers( BYTE *baseAddress, int offset, BNodeType **tagListPtr );

BNode *sibling;

virtual void Draw(void) = 0;
virtual BNodeType Type(void) { return tagBNode; };

BNodeType;

typedef enum {
        tagBNode,
        tagBSubTree,
        tagBRoot,
        tagBSlotNode,
        tagBDofNode,
        tagBSwitchNode,
        tagBSplitterNode,
        tagBPrimitiveNode,
        tagBLitPrimitiveNode,
        tagBCulledPrimitiveNode,
        tagBSpecialXform,
        tagBLightStringNode,
} BNodeType;

BTransformType;

typedef enum {
        Normal,
        Billboard,
        Tree
} BTransformType;