mirror of
https://github.com/electronicarts/CnC_Remastered_Collection
synced 2024-04-28 09:22:35 +12:00
03416d24e1
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
114 lines
5 KiB
C++
114 lines
5 KiB
C++
//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: /CounterStrike/CCPTR.H 1 3/03/97 10:24a Joe_bostic $ */
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Command & Conquer *
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* *
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* File Name : CCPTR.H *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : 06/07/96 *
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* *
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* Last Update : June 7, 1996 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef CCPTR_H
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#define CCPTR_H
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/*
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** The CCPtr class is designed for a specific purpose. It functions like a pointer except that
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** it requires no fixups for saving and loading. If pointer fixups are not an issue, than using
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** regular pointers would be more efficient.
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*/
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template<class T>
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class CCPtr
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{
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public:
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CCPtr(void) : ID(-1) {};
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CCPtr(NoInitClass const & ) {};
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CCPtr(T * ptr);
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operator T * (void) const {
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if (ID == -1) return(NULL);
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assert(Heap != NULL && ID < Heap->Length());
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return((T*) (*Heap)[ID]);
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}
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T & operator * (void) const {
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assert(Heap != NULL && ID < Heap->Length());
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return(*(T*)(*Heap)[ID]);
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}
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T * operator -> (void) const {
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if (ID == -1) return(NULL);
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assert(Heap != NULL && ID < Heap->Length());
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return((T*) (*Heap)[ID]);
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}
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bool Is_Valid(void) const {return(ID != -1);}
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bool operator == (CCPtr<T> const & rvalue) const {return(ID == rvalue.ID);}
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bool operator != (CCPtr<T> const & rvalue) const {return(ID != rvalue.ID);}
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bool operator > (CCPtr<T> const & rvalue) const;
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bool operator <= (CCPtr<T> const & rvalue) const {return (rvalue > *this);}
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bool operator < (CCPtr<T> const & rvalue) const {return (*this != rvalue && rvalue > *this);}
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bool operator >= (CCPtr<T> const & rvalue) const {return (*this == rvalue || rvalue > *this);}
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long Raw(void) const {return(ID);}
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void Set_Raw(long value) {ID = value;}
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static void Set_Heap(FixedIHeapClass *heap) {Heap = heap;}
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private:
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static FixedIHeapClass * Heap;
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/*
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** This is the ID number of the object it refers to. By using an ID number, this class can
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** be saved and loaded without pointer fixups.
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*/
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int ID;
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};
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/*
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** These template helper functions tell the compiler what to do in the
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** ambiguous case of a CCPtr on one side and a regular type pointer on the
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** other side. In such a case the compiler could create a temp CCPtr object
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** OR call the conversion operator on the existing CCPtr object. Either way
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** is technically valid, but the compiler doesn't know which is better so it
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** generates an error. These routines force the conversion operator rather than
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** creating a temporary object. This presumes that the conversion operator is
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** cheaper than constructing a temporary and that cheaper solutions are desirable.
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*/
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template<class T>
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int operator == (CCPtr<T> & lvalue, T * rvalue)
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{
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return((T*)lvalue == rvalue);
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}
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template<class T>
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int operator == (T * lvalue, CCPtr<T> & rvalue)
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{
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return(lvalue == (T*)rvalue);
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}
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#endif |