/*
** Command & Conquer Generals(tm)
** Copyright 2025 Electronic Arts Inc.
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see .
*/
/* $Header: /Commando/Code/Tools/pluglib/nodelist.cpp 8 1/02/01 6:31p Greg_h $ */
/***********************************************************************************************
*** Confidential - Westwood Studios ***
***********************************************************************************************
* *
* Project Name : Commando / G *
* *
* File Name : NODELIST.CPP *
* *
* Programmer : Greg Hjelstrom *
* *
* Start Date : 06/09/97 *
* *
* Last Update : June 9, 1997 [GH] *
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* INodeListClass::INodeListClass -- Create an INodeList *
* INodeListClass::~INodeListClass -- Delete the INode List *
* INode * INodeListClass::operator[] -- Array-like access to the list members *
* INodeListClass::callback -- callback function for MAX *
* INodeListClass::INodeListClass -- A "copy" contstructor with filtering... *
* INodeListClass::INodeListClass -- constructor *
* INodeListClass::INodeListClass -- Constructor *
* INodeListClass::Insert -- insert a list of nodes into this list *
* INodeListClass::Insert -- Inserts an INode into the list *
* INodeListClass::Add_Tree -- Add a tree of INodes to the list *
* INodeListClass::Remove -- Remove the i'th element of the list *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "nodelist.h"
static AnyINodeFilter _AnyFilter;
/*******************************************************************************
* ListEntryClass
*
* Used to implement a linked list of INodes.
*
*******************************************************************************/
class INodeListEntryClass
{
public:
INodeListEntryClass(INode * n,TimeValue /*time*/) { Node = n; }
~INodeListEntryClass(void) {}
INode * Node;
INodeListEntryClass * Next;
};
/***********************************************************************************************
* INodeListClass::INodeListClass -- Constructor *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 07/02/1997 GH : Created. *
*=============================================================================================*/
INodeListClass::INodeListClass(TimeValue time,INodeFilterClass * inodefilter) :
NumNodes(0),
Time(time),
ListHead(NULL),
INodeFilter(inodefilter)
{
if (INodeFilter == NULL) {
INodeFilter = &_AnyFilter;
}
}
/***********************************************************************************************
* INodeListClass::INodeListClass -- Create an INodeList *
* *
* INPUT: *
* scene - 3dsMAX scene to enumerate *
* time - time at which to create the list of INodes *
* inodefilter - object which will accept or reject each INode in the scene *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 06/09/1997 GH : Created. *
*=============================================================================================*/
INodeListClass::INodeListClass(IScene * scene,TimeValue time,INodeFilterClass * inodefilter) :
NumNodes(0),
Time(time),
ListHead(NULL),
INodeFilter(inodefilter)
{
if (INodeFilter == NULL) {
INodeFilter = &_AnyFilter;
}
scene->EnumTree(this);
}
/***********************************************************************************************
* INodeListClass::INodeListClass -- Constructor *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 1/13/98 GTH : Created. *
*=============================================================================================*/
INodeListClass::INodeListClass(INode * root,TimeValue time,INodeFilterClass * nodefilter) :
NumNodes(0),
Time(time),
ListHead(NULL),
INodeFilter(nodefilter)
{
if (INodeFilter == NULL) {
INodeFilter = &_AnyFilter;
}
Add_Tree(root);
}
/***********************************************************************************************
* INodeListClass::INodeListClass -- A "copy" contstructor with filtering... *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 07/02/1997 GH : Created. *
*=============================================================================================*/
INodeListClass::INodeListClass(INodeListClass & copyfrom,TimeValue time,INodeFilterClass * inodefilter) :
NumNodes(0),
Time(time),
ListHead(NULL),
INodeFilter(inodefilter)
{
if (INodeFilter == NULL) {
INodeFilter = &_AnyFilter;
}
for (unsigned i=0; iNext;
delete ListHead;
ListHead = next;
}
NumNodes = 0;
ListHead = NULL;
}
/***********************************************************************************************
* INode * INodeListClass::operator[] -- Array-like access to the list members *
* *
* INPUT: *
* index - index of the list entry *
* *
* OUTPUT: *
* pointer to an INode *
* *
* WARNINGS: *
* *
* HISTORY: *
* 06/09/1997 GH : Created. *
*=============================================================================================*/
INode * INodeListClass::operator[] ( int index ) const
{
INodeListEntryClass * entry = ListHead;
while (index > 0 && entry != NULL )
{
entry = entry->Next;
index--;
}
return entry->Node;
}
/***********************************************************************************************
* INodeListClass::Insert -- insert a list of nodes into this list *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 1/14/98 GTH : Created. *
*=============================================================================================*/
void INodeListClass::Insert(INodeListClass & insertlist)
{
for (unsigned int i=0; iAccept_Node(node,Time))
{
INodeListEntryClass * newentry = new INodeListEntryClass(node, Time);
newentry->Next = ListHead;
ListHead = newentry;
NumNodes++;
}
}
/***********************************************************************************************
* INodeListClass::Remove -- Remove the i'th element of the list *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 10/27/2000 gth : Created. *
*=============================================================================================*/
void INodeListClass::Remove(int i)
{
if ((i < 0) || (i > Num_Nodes())) {
return;
}
INodeListEntryClass * prev = ListHead;
while (i > 1) {
prev = prev->Next;
}
INodeListEntryClass * deleteme = prev->Next;
if (deleteme != NULL) {
prev->Next = prev->Next->Next;
delete deleteme;
}
}
/***********************************************************************************************
* INodeListClass::Add_Tree -- Add a tree of INodes to the list *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 1/13/98 GTH : Created. *
*=============================================================================================*/
void INodeListClass::Add_Tree(INode * root)
{
if (root == NULL) return;
Insert(root);
for (int i=0; iNumberOfChildren(); i++) {
Add_Tree(root->GetChildNode(i));
}
}
/***********************************************************************************************
* INodeListClass::callback -- callback function for MAX *
* *
* 3dsMAX calls this function with a pointer to each INode in the scene. We keep a pointer *
* to the ones we like. *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 06/09/1997 GH : Created. *
*=============================================================================================*/
int INodeListClass::callback(INode * node)
{
Insert(node);
return TREE_CONTINUE; // Keep on enumerating....
}
void INodeListClass::Sort(const INodeCompareClass & node_compare)
{
for (unsigned int i=0; iNode,nj->Node) > 0) {
INode * tmp = ni->Node;
ni->Node = nj->Node;
nj->Node = tmp;
}
}
}
}
INodeListEntryClass * INodeListClass::get_nth_item(int index)
{
INodeListEntryClass * entry = ListHead;
while (index > 0 && entry != NULL )
{
entry = entry->Next;
index--;
}
return entry;
}