mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.7 KiB
74 lines
2.7 KiB
/******************************Module*Header*******************************\
|
|
* Module Name: node.h
|
|
*
|
|
* Node stuff
|
|
*
|
|
* Copyright (c) 1995 Microsoft Corporation
|
|
*
|
|
\**************************************************************************/
|
|
|
|
#ifndef __node_h__
|
|
#define __node_h__
|
|
|
|
#include "sscommon.h"
|
|
#include "sspipes.h"
|
|
|
|
#define NUM_NODE (NUM_DIV - 1) // num nodes in longest dimension
|
|
|
|
// maximum weighting of going straight for direction choosing functions
|
|
#define MAX_WEIGHT_STRAIGHT 100
|
|
|
|
// Node class
|
|
|
|
class Node {
|
|
public:
|
|
void MarkAsTaken() { empty = FALSE; }
|
|
void MarkAsEmpty() { empty = TRUE; }
|
|
BOOL IsEmpty() { return empty; }
|
|
private:
|
|
GLboolean empty;
|
|
};
|
|
|
|
/**************************************************************************\
|
|
*
|
|
* Node array class
|
|
*
|
|
* - 3d array of nodes
|
|
* - Functions to access node neighbours, query if taken or not, etc.
|
|
* - Not only is this the node array, but a set of methods that operates on it
|
|
*
|
|
\**************************************************************************/
|
|
|
|
class NODE_ARRAY {
|
|
public:
|
|
NODE_ARRAY();
|
|
~NODE_ARRAY();
|
|
void Resize( IPOINT3D *pNewSize ); // new array size
|
|
void Reset(); // set all nodes to empty
|
|
int ChooseRandomDirection( IPOINT3D *pos, int dir, int weight );
|
|
int ChoosePreferredDirection( IPOINT3D *pos, int dir, int *prefDirs,
|
|
int nPrefDirs );
|
|
int ChooseNewTurnDirection( IPOINT3D *pos, int dir );
|
|
int FindClearestDirection( IPOINT3D *pos );
|
|
int GetBestPossibleTurns( IPOINT3D *pos, int dir, int *turnDirs );
|
|
BOOL FindRandomEmptyNode( IPOINT3D *ip3dEmpty );
|
|
BOOL FindRandomEmptyNode2D( IPOINT3D *pos, int plane, int *box );
|
|
BOOL TakeClosestEmptyNode( IPOINT3D *newPos, IPOINT3D *pos );
|
|
void NodeVisited( IPOINT3D *pos );
|
|
void GetNodeCount( IPOINT3D *pos );
|
|
private:
|
|
Node *nodes; // ptr to node array
|
|
int lock; // semaphore lock for >1 drawing pipes
|
|
IPOINT3D numNodes; // x,y,z dimensions of node array
|
|
int nodeDirInc[NUM_DIRS]; // array offset between nodes for each dir
|
|
void GetNeighbours( IPOINT3D *pos, Node **nNode );
|
|
Node* GetNode( IPOINT3D *pos );
|
|
Node* GetNextNode( IPOINT3D *pos, int dir );
|
|
BOOL GetNextNodePos( IPOINT3D *curPos, IPOINT3D *nextPos, int dir );
|
|
int GetEmptyNeighbours( Node **nNode, int *nEmpty );
|
|
int GetEmptyTurnNeighbours( Node **nNode, int *nEmpty, int lastDir );
|
|
int GetEmptyNeighboursAlongDir( IPOINT3D *pos, int dir,
|
|
int searchRadius );
|
|
};
|
|
|
|
#endif // __node_h__
|