Method mapScan

MicropolisCore/src/MicropolisEngine/src/simulate.cpp:929–997

comefrom: simulate doSimInit */

/* comefrom: simulate doSimInit */
void Micropolis::mapScan(int x1, int x2)
{
    short x, y;

    for (x = x1; x < x2; x++) {
        for (y = 0; y < WORLD_H; y++) {

            MapValue mapVal = map[x][y];
            if (mapVal == DIRT) {
                continue;
            }

            MapTile tile = mapVal & LOMASK;  /* Mask off status bits  */

            if (tile < FLOOD) {
                continue;
            }

            // tile >= FLOOD

            Position pos(x, y);


            if (tile < ROADBASE) {

                if (tile >= FIREBASE) {
                    firePop++;
                    if (!(getRandom16() & 3)) {
                        doFire(pos);    /* 1 in 4 times */
                    }
                    continue;
                }

                if (tile < RADTILE) {
                    doFlood(pos);
                } else {
                    doRadTile(pos);
                }

                continue;
            }

            if (newPower && (mapVal & CONDBIT)) {
                // Copy PWRBIT from powerGridMap
                setZonePower(pos);
            }

            if (tile >= ROADBASE && tile < POWERBASE) {
                doRoad(pos);
                continue;
            }

            if (mapVal & ZONEBIT) { /* process Zones */
                doZone(pos);
                continue;
            }

            if (tile >= RAILBASE && tile < RESBASE) {