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0545adfac3
Have fun!
236 lines
7.2 KiB
C++
236 lines
7.2 KiB
C++
/// \file
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///
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/// This file is part of RakNet Copyright 2003 Kevin Jenkins.
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///
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/// Usage of RakNet is subject to the appropriate license agreement.
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/// Creative Commons Licensees are subject to the
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/// license found at
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/// http://creativecommons.org/licenses/by-nc/2.5/
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/// Single application licensees are subject to the license found at
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/// http://www.jenkinssoftware.com/SingleApplicationLicense.html
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/// Custom license users are subject to the terms therein.
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/// GPL license users are subject to the GNU General Public
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/// License as published by the Free
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/// Software Foundation; either version 2 of the License, or (at your
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/// option) any later version.
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#include "NetworkIDObject.h"
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#include "NetworkIDManager.h"
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#include "RakAssert.h"
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#if !defined (_WIN32) && !defined (_XBOX360)
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#include <alloca.h>
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#endif
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unsigned int NetworkIDObject::nextAllocationNumber=0;
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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NetworkIDObject::NetworkIDObject()
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{
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callGenerationCode=true;
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networkID=UNASSIGNED_NETWORK_ID;
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parent=0;
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networkIDManager=0;
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allocationNumber=nextAllocationNumber++;
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}
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//-------------------------------------------------------------------------------------
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NetworkIDObject::~NetworkIDObject()
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{
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if (networkID!=UNASSIGNED_NETWORK_ID)
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{
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#if defined(NETWORK_ID_USE_PTR_TABLE) || defined (NETWORK_ID_USE_HASH)
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void *obj = networkIDManager->IDArray[networkID.localSystemAddress];
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if (obj==this)
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networkIDManager->IDArray[networkID.localSystemAddress]=0;
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#else
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NetworkIDNode * object = networkIDManager->IDTree.GetPointerToNode( NetworkIDNode( ( networkID ), 0 ) );
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if ( object && object->object == this )
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networkIDManager->IDTree.Del( NetworkIDNode( object->networkID, 0 ) );
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#endif
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}
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}
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//////////////////////////////////////////////////////////////////////
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// Public Methods
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//////////////////////////////////////////////////////////////////////
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void NetworkIDObject::SetNetworkIDManager( NetworkIDManager *manager)
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{
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networkIDManager = manager;
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}
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//-------------------------------------------------------------------------------------
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NetworkIDManager * NetworkIDObject::GetNetworkIDManager( void )
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{
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return networkIDManager;
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}
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//-------------------------------------------------------------------------------------
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NetworkID NetworkIDObject::GetNetworkID( void )
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{
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RakAssert(networkIDManager);
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if (callGenerationCode && networkIDManager->IsNetworkIDAuthority())
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{
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GenerateID();
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RakAssert(networkID!=UNASSIGNED_NETWORK_ID);
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callGenerationCode=false;
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}
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return networkID;
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};
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//-------------------------------------------------------------------------------------
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bool NetworkIDObject::RequiresSetParent(void) const
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{
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return false;
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}
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//-------------------------------------------------------------------------------------
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void NetworkIDObject::SetNetworkID( NetworkID id )
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{
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callGenerationCode=false;
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if ( id == UNASSIGNED_NETWORK_ID )
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{
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// puts("Warning: NetworkIDObject passed UNASSIGNED_NETWORK_ID. SetID ignored");
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return ;
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}
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if ( networkID == id )
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{
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// printf("NetworkIDObject passed %i which already exists in the tree. SetID ignored", id);
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return ;
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}
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RakAssert(networkIDManager);
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#if defined(NETWORK_ID_USE_PTR_TABLE) || defined (NETWORK_ID_USE_HASH)
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networkID = id;
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networkIDManager->IDArray[id.localSystemAddress]=this;
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#else
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NetworkIDNode* collision = networkIDManager->IDTree.GetPointerToNode( NetworkIDNode( ( id ), 0 ) );
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if ( collision ) // Tree should have only unique values. The new value is already in use.
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{
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//printf("Warning: NetworkIDObject::SetID passed %i, which has an existing node in the tree. Old node removed, which will cause the item pointed to to be inaccessible to the network", id);
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networkIDManager->IDTree.Del( NetworkIDNode( collision->networkID, collision->object ) );
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}
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if ( networkID == UNASSIGNED_NETWORK_ID ) // Object has not had an ID assigned so does not already exist in the tree
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{
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networkID = id;
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networkIDManager->IDTree.Add( NetworkIDNode( networkID, this ) );
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}
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else // Object already exists in the tree and has an assigned ID
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{
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networkIDManager->IDTree.Del( NetworkIDNode( networkID, this ) ); // Delete the node with whatever ID the existing object is using
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networkID = id;
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networkIDManager->IDTree.Add( NetworkIDNode( networkID, this ) );
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}
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#endif
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}
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//-------------------------------------------------------------------------------------
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void NetworkIDObject::SetParent( void *_parent )
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{
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parent=_parent;
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#ifdef _DEBUG
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if (networkIDManager)
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{
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// Avoid duplicate parents in the tree
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unsigned i;
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#if defined(NETWORK_ID_USE_PTR_TABLE) || defined (NETWORK_ID_USE_HASH)
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for (i=0; i < 65534; i++)
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{
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NetworkIDObject *nio = networkIDManager->IDArray[i];
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RakAssert(nio==0 || nio->GetParent()!=_parent);
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}
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#else
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unsigned size = networkIDManager->IDTree.Size();
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NetworkIDNode *nodeArray;
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bool usedAlloca=false;
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#if !defined(_XBOX360)
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if (sizeof(NetworkIDNode) * size < MAX_ALLOCA_STACK_ALLOCATION)
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{
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nodeArray = (NetworkIDNode*) alloca(sizeof(NetworkIDNode) * size);
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usedAlloca=true;
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}
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else
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#endif
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nodeArray = new NetworkIDNode[size];
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networkIDManager->IDTree.DisplayBreadthFirstSearch( nodeArray );
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for (i=0; i < size; i++)
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{
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// If this assert hits then this _parent is already in the tree. Classes instance should never contain more than one NetworkIDObject
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RakAssert(nodeArray->object->GetParent()!=parent);
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}
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if (usedAlloca==false)
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delete [] nodeArray;
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#endif
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}
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#endif
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}
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//-------------------------------------------------------------------------------------
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void* NetworkIDObject::GetParent( void ) const
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{
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return parent;
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}
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//-------------------------------------------------------------------------------------
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unsigned int NetworkIDObject::GetAllocationNumber(void) const
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{
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return allocationNumber;
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}
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//-------------------------------------------------------------------------------------
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void NetworkIDObject::GenerateID(void)
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{
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RakAssert(networkIDManager->IsNetworkIDAuthority());
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#if defined(NETWORK_ID_USE_PTR_TABLE) || defined (NETWORK_ID_USE_HASH)
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int count = 65535;
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(void) count;
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do
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{
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RakAssert(count-->0);
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networkID.localSystemAddress=networkIDManager->sharedNetworkID++;
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} while(networkIDManager->IDArray[networkID.localSystemAddress]!=0);
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networkIDManager->IDArray[networkID.localSystemAddress]=this;
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#else
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// If you want more than 65535 network objects, change the type of networkID
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RakAssert(networkIDManager->IDTree.Size() < 65535);
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NetworkIDNode* collision;
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do
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{
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networkID.localSystemAddress=networkIDManager->sharedNetworkID++;
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if (NetworkID::peerToPeerMode)
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{
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// If this assert hits you forgot to call SetExternalSystemAddress
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RakAssert(networkIDManager->externalSystemAddress!=UNASSIGNED_SYSTEM_ADDRESS);
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networkID.systemAddress=networkIDManager->externalSystemAddress;
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}
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collision = networkIDManager->IDTree.GetPointerToNode( NetworkIDNode( ( networkID ), 0 ) );
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}
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while ( collision );
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networkIDManager->IDTree.Add( NetworkIDNode( networkID, this ) );
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#endif
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}
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//////////////////////////////////////////////////////////////////////
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// EOF
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//////////////////////////////////////////////////////////////////////
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