162 lines
9.0 KiB
C++
162 lines
9.0 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: F:\projects\c&c\vcs\code\layer.cpv 2.18 16 Oct 1995 16:50:14 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 : LAYER.CPP *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : May 31, 1994 *
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* *
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* Last Update : March 10, 1995 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* LayerClass::Submit -- Adds an object to a layer list. *
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* LayerClass::Sort -- Perform an incremental sort pass on the layer's objects. *
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* LayerClass::Sorted_Add -- Adds object in sorted order to layer. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "function.h"
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#include "layer.h"
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/***********************************************************************************************
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* LayerClass::Submit -- Adds an object to a layer list. *
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* *
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* This routine is used to add an object to the layer list. If the list is full, then the *
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* object is not added. *
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* *
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* INPUT: object -- Pointer to the object to add. *
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* *
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* OUTPUT: bool; Was the object added successfully? *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 05/31/1994 JLB : Created. *
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* 05/31/1994 JLB : Allows sorted insert. *
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* 01/02/1995 JLB : Fixed to work with EMSListOf template. *
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*=============================================================================================*/
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bool LayerClass::Submit(ObjectClass const * object, bool sort)
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{
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/*
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** Add the object to the layer. Either at the end (if "sort" is false) or at the
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** appropriately sorted position.
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*/
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if (sort) {
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return(Sorted_Add(object));
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}
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return(Add((ObjectClass *)object));
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}
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/***********************************************************************************************
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* LayerClass::Sort -- Handles sorting the objects in the layer. *
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* *
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* This routine is used if the layer objects must be sorted and sorting is to occur now. *
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* *
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* INPUT: none *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: Don't call this routine too often since it does take a bit of time to *
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* execute. It is a single pass binary sort and thus isn't horribly slow, *
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* but it does take some time. *
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* *
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* HISTORY: *
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* 10/17/1994 JLB : Created. *
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* 03/10/1995 JLB : Uses comparison operator. *
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*=============================================================================================*/
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void LayerClass::Sort(void)
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{
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for (int index = 0; index < Count()-1; index++) {
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if (*(*this)[index+1] < *(*this)[index]) {
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ObjectClass * temp;
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temp = (*this)[index+1];
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(*this)[index+1] = (*this)[index];
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(*this)[index] = temp;
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}
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}
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}
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/***********************************************************************************************
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* DynamicVectorClass<T>::Sorted_Add -- Adds object in sorted order to vector. *
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* *
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* Use this routine to add an object to the vector but it will be inserted in sorted *
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* order. This depends on the ">" operator being defined for the vector object. *
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* *
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* INPUT: object -- Reference to the object that will be added to the vector. *
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* *
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* OUTPUT: bool; Was the object added to the vector successfully? *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 03/10/1995 JLB : Created. *
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*=============================================================================================*/
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int LayerClass::Sorted_Add(ObjectClass const * const object)
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{
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if (ActiveCount >= (int)Length()) {
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if ((IsAllocated || !VectorMax) && GrowthStep > 0) {
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if (!Resize(Length() + GrowthStep)) {
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/*
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** Failure to increase the size of the vector is an error condition.
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** Return with the error flag.
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*/
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return(false);
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}
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} else {
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/*
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** Increasing the size of this vector is not allowed! Bail this
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** routine with the error code.
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*/
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return(false);
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}
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}
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/*
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** There is room for the new object now. Add it to the right sorted position.
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*/
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int index;
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for (index = 0; index < ActiveCount; index++) {
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if ((*(*this)[index]) > (*object)) {
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break;
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}
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}
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/*
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** Make room if the insertion spot is not at the end of the vector.
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*/
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for (int i = ActiveCount-1; i >= index; i--) {
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(*this)[i+1] = (*this)[i];
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}
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(*this)[index] = (ObjectClass *)object;
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ActiveCount++;
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return(true);
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}
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