citylimits/core/allocate.cpp

/* allocate.cpp
 *
 * Micropolis, Unix Version.  This game was released for the Unix platform
 * in or about 1990 and has been modified for inclusion in the One Laptop
 * Per Child program.  Copyright (C) 1989 - 2007 Electronic Arts Inc.  If
 * you need assistance with this program, you may contact:
 *   http://wiki.laptop.org/go/Micropolis  or email  micropolis@laptop.org.
 *
 * 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 <http://www.gnu.org/licenses/>.
 *
 *             ADDITIONAL TERMS per GNU GPL Section 7
 *
 * No trademark or publicity rights are granted.  This license does NOT
 * give you any right, title or interest in the trademark SimCity or any
 * other Electronic Arts trademark.  You may not distribute any
 * modification of this program using the trademark SimCity or claim any
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 */

/** 
 * @file allocate.cpp
 * @brief Implementation of map array initialization and destruction
 * in Micropolis.
 *
 * This source file contains functions for initializing and destroying
 * map arrays in the Micropolis game engine. It includes the
 * allocation of memory for various map-related data structures such
 * as the main city map, history data, and various density maps. The
 * functions handle the setup of necessary resources when the game
 * starts and ensure proper cleanup of these resources upon
 * termination, maintaining efficient memory management throughout the
 * lifecycle of the game.
 */


////////////////////////////////////////////////////////////////////////


#include "micropolis.h"


////////////////////////////////////////////////////////////////////////

/** Allocate and initialize arrays for the maps */
void Micropolis::initMapArrays()
{
    short i;

    if (!mapBase) {
        mapBase = (unsigned short *)newPtr(
            sizeof(unsigned short) *
            WORLD_W * WORLD_H);
    }

    for (i = 0; i < WORLD_W; i++) {
        map[i] = (unsigned short *)(mapBase + (i * WORLD_H));
    }

    resHist = (short *)newPtr(HISTORY_LENGTH);
    comHist = (short *)newPtr(HISTORY_LENGTH);
    indHist = (short *)newPtr(HISTORY_LENGTH);
    moneyHist = (short *)newPtr(HISTORY_LENGTH);
    pollutionHist = (short *)newPtr(HISTORY_LENGTH);
    crimeHist = (short *)newPtr(HISTORY_LENGTH);
    miscHist = (short *)newPtr(MISC_HISTORY_LENGTH);
}


/** Free all map arrays */
void Micropolis::destroyMapArrays()
{

    if (mapBase != NULL) {
        freePtr(mapBase);
        mapBase = NULL;
    }

    memset(map, 0, sizeof(short *) * WORLD_W);

    populationDensityMap.clear();
    trafficDensityMap.clear();
    pollutionDensityMap.clear();
    landValueMap.clear();
    crimeRateMap.clear();

    tempMap1.clear();
    tempMap2.clear();
    tempMap3.clear();

    terrainDensityMap.clear();

    if (resHist != NULL) {
        freePtr(resHist);
        resHist = NULL;
    }

    if (comHist != NULL) {
        freePtr(comHist);
        comHist = NULL;
    }

    if (indHist != NULL) {
        freePtr(indHist);
        indHist = NULL;
    }

    if (moneyHist != NULL) {
        freePtr(moneyHist);
        moneyHist = NULL;
    }

    if (pollutionHist != NULL) {
        freePtr(pollutionHist);
        pollutionHist = NULL;
    }

    if (crimeHist != NULL) {
        freePtr(crimeHist);
        crimeHist = NULL;
    }

    if (miscHist != NULL) {
        freePtr(miscHist);
        miscHist = NULL;
    }

}


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