ReplaceUtils.java

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/*
 * Gridarta MMORPG map editor for Crossfire, Daimonin and similar games.
 * Copyright (C) 2000-2023 The Gridarta Developers.
 *
 * 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 2 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
package net.sf.gridarta.gui.dialog.replace;
 
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import net.sf.gridarta.gui.map.mapview.MapView;
import net.sf.gridarta.model.archetype.Archetype;
import net.sf.gridarta.model.baseobject.BaseObject;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import net.sf.gridarta.model.mapcontrol.MapControl;
import net.sf.gridarta.model.mapmodel.InsertionModeSet;
import net.sf.gridarta.model.mapmodel.MapModel;
import net.sf.gridarta.model.mapmodel.MapSquare;
import net.sf.gridarta.model.select.MatchCriteria;
import net.sf.gridarta.utils.RandomUtils;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
 
public class ReplaceUtils {
 
    private ReplaceUtils() {
    }
 
    public static <G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> int replace(@NotNull final MatchCriteria<G, A, R> matchCriteria, final boolean entireMap, final boolean deleteOnly, final int replaceDensity, @NotNull final MapView<G, A, R> mapView, @NotNull final InsertionModeSet<G, A, R> insertionModeSet, @Nullable final List<? extends BaseObject<G, A, R, ?>> replaceList) {
        final int replaceListSize = replaceList == null ? 0 : replaceList.size();
        final MapControl<G, A, R> mapControl = mapView.getMapControl();
        final MapModel<G, A, R> mapModel = mapControl.getMapModel();
        mapModel.beginTransaction("Replace"); // TODO: I18N/L10N
        try {
            int replaceCount = 0;
            final Collection<G> objectsToReplace = new ArrayList<>();
            for (final MapSquare<G, A, R> square : entireMap ? mapModel : mapView.getSelectedSquares()) {
                // Operate on a copy of the nodes to prevent ConcurrentModificationException
 
                // find objects to replace
                objectsToReplace.clear();
                for (final G node : square) {
                    if (node.isHead() && matchCriteria.matches(node)) {
                        if (replaceDensity > RandomUtils.RND.nextInt(100)) {
                            objectsToReplace.add(node);
                        }
                    }
                }
 
                // actually replace the objects
                for (final G objectToReplace : objectsToReplace) {
                    final Iterator<G> it = square.iterator();
                    G prevArch = null;
                    G node = null;
                    while (it.hasNext()) {
                        node = it.next();
 
                        if (node == objectToReplace) {
                            break;
                        }
 
                        prevArch = node;
                    }
                    assert node != null;
 
                    // first, delete the old arch
                    node.remove();
 
                    if (replaceListSize > 0 && !deleteOnly) {
                        final BaseObject<G, A, R, ?> randomArch = replaceList.get(replaceListSize == 1 ? 0 : RandomUtils.RND.nextInt(replaceList.size()));
                        final G newGameObject;
                        // insert replacement object
                        //noinspection SimplifiableIfStatement
                        if (randomArch.isMulti()) {
                            newGameObject = mapModel.insertBaseObject(randomArch, square.getMapLocation(), false, false, insertionModeSet.getTopmostInsertionMode());
                        } else {
                            newGameObject = mapModel.insertArchToMap(randomArch, prevArch, square.getMapLocation(), false);
                        }
                        if (newGameObject != null) {
                            newGameObject.propagateElevation(node);
                        }
                    }
                    replaceCount++;
                }
            }
            return replaceCount;
        } finally {
            mapModel.endTransaction();
        }
    }
 
}