445 lines
22 KiB
C++
445 lines
22 KiB
C++
/*
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** Command & Conquer Renegade(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* $Header: /Commando/Code/Tools/pluglib/nodelist.cpp 9 3/14/02 4:22p Greg_h $ */
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/***********************************************************************************************
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*** Confidential - Westwood Studios ***
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***********************************************************************************************
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* *
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* Project Name : Commando / G *
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* *
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* File Name : NODELIST.CPP *
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* *
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* Programmer : Greg Hjelstrom *
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* *
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* Start Date : 06/09/97 *
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* *
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* Last Update : June 9, 1997 [GH] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* INodeListClass::INodeListClass -- Create an INodeList *
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* INodeListClass::~INodeListClass -- Delete the INode List *
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* INode * INodeListClass::operator[] -- Array-like access to the list members *
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* INodeListClass::callback -- callback function for MAX *
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* INodeListClass::INodeListClass -- A "copy" contstructor with filtering... *
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* INodeListClass::INodeListClass -- constructor *
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* INodeListClass::INodeListClass -- Constructor *
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* INodeListClass::Insert -- insert a list of nodes into this list *
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* INodeListClass::Insert -- Inserts an INode into the list *
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* INodeListClass::Add_Tree -- Add a tree of INodes to the list *
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* INodeListClass::Remove -- Remove the i'th element of the list *
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* INodeListClass::Contains -- test whether the given node is in this list *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "nodelist.h"
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static AnyINodeFilter _AnyFilter;
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/*******************************************************************************
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* ListEntryClass
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*
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* Used to implement a linked list of INodes.
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*
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*******************************************************************************/
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class INodeListEntryClass
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{
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public:
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INodeListEntryClass(INode * n,TimeValue /*time*/) { Node = n; }
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~INodeListEntryClass(void) {}
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INode * Node;
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INodeListEntryClass * Next;
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};
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/***********************************************************************************************
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* INodeListClass::INodeListClass -- Constructor *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 07/02/1997 GH : Created. *
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*=============================================================================================*/
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INodeListClass::INodeListClass(TimeValue time,INodeFilterClass * inodefilter) :
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NumNodes(0),
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Time(time),
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ListHead(NULL),
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INodeFilter(inodefilter)
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{
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if (INodeFilter == NULL) {
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INodeFilter = &_AnyFilter;
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}
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}
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/***********************************************************************************************
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* INodeListClass::INodeListClass -- Create an INodeList *
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* *
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* INPUT: *
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* scene - 3dsMAX scene to enumerate *
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* time - time at which to create the list of INodes *
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* inodefilter - object which will accept or reject each INode in the scene *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 06/09/1997 GH : Created. *
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*=============================================================================================*/
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INodeListClass::INodeListClass(IScene * scene,TimeValue time,INodeFilterClass * inodefilter) :
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NumNodes(0),
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Time(time),
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ListHead(NULL),
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INodeFilter(inodefilter)
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{
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if (INodeFilter == NULL) {
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INodeFilter = &_AnyFilter;
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}
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scene->EnumTree(this);
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}
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/***********************************************************************************************
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* INodeListClass::INodeListClass -- Constructor *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 1/13/98 GTH : Created. *
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*=============================================================================================*/
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INodeListClass::INodeListClass(INode * root,TimeValue time,INodeFilterClass * nodefilter) :
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NumNodes(0),
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Time(time),
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ListHead(NULL),
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INodeFilter(nodefilter)
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{
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if (INodeFilter == NULL) {
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INodeFilter = &_AnyFilter;
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}
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Add_Tree(root);
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}
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/***********************************************************************************************
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* INodeListClass::INodeListClass -- A "copy" contstructor with filtering... *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 07/02/1997 GH : Created. *
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*=============================================================================================*/
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INodeListClass::INodeListClass(INodeListClass & copyfrom,TimeValue time,INodeFilterClass * inodefilter) :
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NumNodes(0),
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Time(time),
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ListHead(NULL),
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INodeFilter(inodefilter)
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{
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if (INodeFilter == NULL) {
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INodeFilter = &_AnyFilter;
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}
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for (unsigned i=0; i<copyfrom.Num_Nodes(); i++) {
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Insert(copyfrom[i]);
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}
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}
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/***********************************************************************************************
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* INodeListClass::~INodeListClass -- Delete the INode List *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 06/09/1997 GH : Created. *
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*=============================================================================================*/
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INodeListClass::~INodeListClass(void)
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{
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while (ListHead)
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{
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INodeListEntryClass * next = ListHead->Next;
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delete ListHead;
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ListHead = next;
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}
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NumNodes = 0;
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ListHead = NULL;
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}
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/***********************************************************************************************
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* INode * INodeListClass::operator[] -- Array-like access to the list members *
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* *
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* INPUT: *
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* index - index of the list entry *
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* *
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* OUTPUT: *
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* pointer to an INode *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 06/09/1997 GH : Created. *
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*=============================================================================================*/
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INode * INodeListClass::operator[] ( int index ) const
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{
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INodeListEntryClass * entry = ListHead;
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while (index > 0 && entry != NULL )
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{
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entry = entry->Next;
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index--;
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}
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return entry->Node;
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}
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/***********************************************************************************************
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* INodeListClass::Insert -- insert a list of nodes into this list *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 1/14/98 GTH : Created. *
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*=============================================================================================*/
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void INodeListClass::Insert(INodeListClass & insertlist)
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{
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for (unsigned int i=0; i<insertlist.Num_Nodes(); i++) {
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Insert(insertlist[i]);
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}
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}
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/***********************************************************************************************
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* INodeListClass::Insert -- Inserts an INode into the list *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 07/02/1997 GH : Created. *
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*=============================================================================================*/
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void INodeListClass::Insert(INode * node)
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{
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if (INodeFilter->Accept_Node(node,Time))
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{
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INodeListEntryClass * newentry = new INodeListEntryClass(node, Time);
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newentry->Next = ListHead;
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ListHead = newentry;
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NumNodes++;
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}
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}
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/***********************************************************************************************
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* INodeListClass::Remove -- Remove the i'th element of the list *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 10/27/2000 gth : Created. *
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*=============================================================================================*/
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void INodeListClass::Remove(int i)
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{
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if ((i < 0) || (i > Num_Nodes())) {
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return;
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}
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INodeListEntryClass * prev = ListHead;
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while (i > 1) {
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prev = prev->Next;
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}
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INodeListEntryClass * deleteme = prev->Next;
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if (deleteme != NULL) {
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prev->Next = prev->Next->Next;
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delete deleteme;
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}
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}
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/***********************************************************************************************
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* INodeListClass::Add_Tree -- Add a tree of INodes to the list *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 1/13/98 GTH : Created. *
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*=============================================================================================*/
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void INodeListClass::Add_Tree(INode * root)
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{
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if (root == NULL) return;
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Insert(root);
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for (int i=0; i<root->NumberOfChildren(); i++) {
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Add_Tree(root->GetChildNode(i));
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}
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}
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/***********************************************************************************************
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* INodeListClass::Contains -- test whether the given node is in this list *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 1/30/2002 gth : Created. *
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*=============================================================================================*/
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bool INodeListClass::Contains(INode * node)
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{
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INodeListIterator it(this);
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while (!it.Is_Done()) {
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if (it.Get_INode() == node) {
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return true;
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}
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}
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return false;
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}
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/***********************************************************************************************
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* INodeListClass::callback -- callback function for MAX *
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* *
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* 3dsMAX calls this function with a pointer to each INode in the scene. We keep a pointer *
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* to the ones we like. *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 06/09/1997 GH : Created. *
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*=============================================================================================*/
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int INodeListClass::callback(INode * node)
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{
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Insert(node);
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return TREE_CONTINUE; // Keep on enumerating....
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}
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void INodeListClass::Sort(const INodeCompareClass & node_compare)
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{
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for (unsigned int i=0; i<Num_Nodes(); i++) {
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for (unsigned int j=0; j<Num_Nodes(); j++) {
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INodeListEntryClass * ni = get_nth_item(i);
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INodeListEntryClass * nj = get_nth_item(j);
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if (node_compare(ni->Node,nj->Node) > 0) {
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INode * tmp = ni->Node;
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ni->Node = nj->Node;
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nj->Node = tmp;
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}
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}
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}
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}
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INodeListEntryClass * INodeListClass::get_nth_item(int index)
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{
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INodeListEntryClass * entry = ListHead;
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while (index > 0 && entry != NULL )
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{
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entry = entry->Next;
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index--;
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}
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return entry;
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}
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/*******************************************************************************
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* INodeListIterator
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*
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* Iterator for INodeLists
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*
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*******************************************************************************/
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INodeListIterator::INodeListIterator(INodeListClass * list) :
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List(list)
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{
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assert(list != NULL);
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First();
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}
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INodeListIterator::~INodeListIterator(void)
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{
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}
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void INodeListIterator::First(INodeListClass * list)
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{
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if (list != NULL) {
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List = list;
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}
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assert(List != NULL);
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Node = List->ListHead;
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}
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void INodeListIterator::Next(void)
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{
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if (Node != NULL) {
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Node = Node->Next;
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}
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}
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bool INodeListIterator::Is_Done(void)
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{
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return (Node == NULL);
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}
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INode * INodeListIterator::Get_INode(void)
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{
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if (Node != NULL) {
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return Node->Node;
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}
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return NULL;
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}
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