Source code

001/*
002 * PlotSquared, a land and world management plugin for Minecraft.
003 * Copyright (C) IntellectualSites <https://intellectualsites.com>
004 * Copyright (C) IntellectualSites team and contributors
005 *
006 * This program is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * This program is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
018 */
019package com.plotsquared.core.generator;
020
021import com.google.inject.Inject;
022import com.plotsquared.core.configuration.Settings;
023import com.plotsquared.core.events.PlotFlagAddEvent;
024import com.plotsquared.core.events.Result;
025import com.plotsquared.core.listener.WEExtent;
026import com.plotsquared.core.location.Location;
027import com.plotsquared.core.plot.Plot;
028import com.plotsquared.core.plot.PlotArea;
029import com.plotsquared.core.plot.PlotAreaType;
030import com.plotsquared.core.plot.PlotId;
031import com.plotsquared.core.plot.PlotManager;
032import com.plotsquared.core.plot.expiration.PlotAnalysis;
033import com.plotsquared.core.plot.flag.GlobalFlagContainer;
034import com.plotsquared.core.plot.flag.PlotFlag;
035import com.plotsquared.core.plot.flag.implementations.AnalysisFlag;
036import com.plotsquared.core.plot.world.PlotAreaManager;
037import com.plotsquared.core.queue.BlockArrayCacheScopedQueueCoordinator;
038import com.plotsquared.core.queue.GlobalBlockQueue;
039import com.plotsquared.core.queue.QueueCoordinator;
040import com.plotsquared.core.util.ChunkManager;
041import com.plotsquared.core.util.EventDispatcher;
042import com.plotsquared.core.util.MathMan;
043import com.plotsquared.core.util.RegionManager;
044import com.plotsquared.core.util.RegionUtil;
045import com.plotsquared.core.util.SchematicHandler;
046import com.plotsquared.core.util.WorldUtil;
047import com.plotsquared.core.util.task.RunnableVal;
048import com.plotsquared.core.util.task.TaskManager;
049import com.plotsquared.core.util.task.TaskTime;
050import com.sk89q.worldedit.math.BlockVector2;
051import com.sk89q.worldedit.math.BlockVector3;
052import com.sk89q.worldedit.regions.CuboidRegion;
053import com.sk89q.worldedit.world.biome.BiomeType;
054import com.sk89q.worldedit.world.block.BaseBlock;
055import com.sk89q.worldedit.world.block.BlockState;
056import com.sk89q.worldedit.world.block.BlockType;
057import com.sk89q.worldedit.world.block.BlockTypes;
058import org.apache.logging.log4j.LogManager;
059import org.apache.logging.log4j.Logger;
060import org.checkerframework.checker.nullness.qual.NonNull;
061import org.checkerframework.checker.nullness.qual.Nullable;
062
063import java.io.File;
064import java.util.ArrayDeque;
065import java.util.ArrayList;
066import java.util.Collections;
067import java.util.HashSet;
068import java.util.Iterator;
069import java.util.LinkedHashSet;
070import java.util.List;
071import java.util.Set;
072import java.util.concurrent.atomic.AtomicBoolean;
073import java.util.concurrent.atomic.AtomicInteger;
074
075public class HybridUtils {
076
077    private static final Logger LOGGER = LogManager.getLogger("PlotSquared/" + HybridUtils.class.getSimpleName());
078    private static final BlockState AIR = BlockTypes.AIR.getDefaultState();
079
080    /**
081     * Deprecated and likely to be removed in a future release.
082     */
083    @Deprecated(forRemoval = true, since = "7.0.0")
084    public static HybridUtils manager;
085    public static Set<BlockVector2> regions;
086    public static int height;
087    // Use ordered for reasonable chunk loading order to reduce paper unloading neighbour chunks and then us attempting to load
088    // them again, causing errors
089    public static Set<BlockVector2> chunks = new LinkedHashSet<>();
090    public static PlotArea area;
091    public static boolean UPDATE = false;
092
093    private final PlotAreaManager plotAreaManager;
094    private final ChunkManager chunkManager;
095    private final GlobalBlockQueue blockQueue;
096    private final WorldUtil worldUtil;
097    private final SchematicHandler schematicHandler;
098    private final EventDispatcher eventDispatcher;
099
100    @Inject
101    public HybridUtils(
102            final @NonNull PlotAreaManager plotAreaManager,
103            final @NonNull ChunkManager chunkManager,
104            final @NonNull GlobalBlockQueue blockQueue,
105            final @NonNull WorldUtil worldUtil,
106            final @NonNull SchematicHandler schematicHandler,
107            final @NonNull EventDispatcher eventDispatcher
108    ) {
109        this.plotAreaManager = plotAreaManager;
110        this.chunkManager = chunkManager;
111        this.blockQueue = blockQueue;
112        this.worldUtil = worldUtil;
113        this.schematicHandler = schematicHandler;
114        this.eventDispatcher = eventDispatcher;
115    }
116
117    public void regeneratePlotWalls(final PlotArea area) {
118        PlotManager plotManager = area.getPlotManager();
119        plotManager.regenerateAllPlotWalls(null);
120    }
121
122    public void analyzeRegion(final String world, final CuboidRegion region, final RunnableVal<PlotAnalysis> whenDone) {
123        // int diff, int variety, int vertices, int rotation, int height_sd
124        /*
125         * diff: compare to base by looping through all blocks
126         * variety: add to HashSet for each BlockState
127         * height_sd: loop over all blocks and get top block
128         *
129         * vertices: store air map and compare with neighbours
130         * for each block check the adjacent
131         *  - Store all blocks then go through in second loop
132         *  - recheck each block
133         *
134         */
135        TaskManager.runTaskAsync(() -> {
136            final PlotArea area = this.plotAreaManager.getPlotArea(world, null);
137            if (!(area instanceof HybridPlotWorld hpw)) {
138                return;
139            }
140
141            final BlockVector3 bot = region.getMinimumPoint();
142            final BlockVector3 top = region.getMaximumPoint();
143
144            final int bx = bot.getX();
145            final int bz = bot.getZ();
146            final int tx = top.getX();
147            final int tz = top.getZ();
148            final int cbx = bx >> 4;
149            final int cbz = bz >> 4;
150            final int ctx = tx >> 4;
151            final int ctz = tz >> 4;
152            final int width = tx - bx + 1;
153            final int length = tz - bz + 1;
154            final int height = area.getMaxGenHeight() - area.getMinGenHeight() + 1;
155            final int minHeight = area.getMinGenHeight();
156
157            final BlockState[][][] newBlocks = new BlockState[height][width][length];
158
159            BlockArrayCacheScopedQueueCoordinator oldBlockQueue = new BlockArrayCacheScopedQueueCoordinator(
160                    Location.at("", region.getMinimumPoint().withY(hpw.getMinGenHeight())),
161                    Location.at("", region.getMaximumPoint().withY(hpw.getMaxGenHeight()))
162            );
163
164            region.getChunks().forEach(chunkPos -> {
165                int relChunkX = chunkPos.getX() - cbx;
166                int relChunkZ = chunkPos.getZ() - cbz;
167                oldBlockQueue.setOffsetX(relChunkX << 4);
168                oldBlockQueue.setOffsetZ(relChunkZ << 4);
169                hpw.getGenerator().generateChunk(oldBlockQueue, hpw, false);
170            });
171
172            final BlockState[][][] oldBlocks = oldBlockQueue.getBlockStates();
173
174            QueueCoordinator queue = area.getQueue();
175            queue.addReadChunks(region.getChunks());
176            queue.setChunkConsumer(chunkPos -> {
177                int X = chunkPos.getX();
178                int Z = chunkPos.getZ();
179                int minX;
180                if (X == cbx) {
181                    minX = bx & 15;
182                } else {
183                    minX = 0;
184                }
185                int minZ;
186                if (Z == cbz) {
187                    minZ = bz & 15;
188                } else {
189                    minZ = 0;
190                }
191                int maxX;
192                if (X == ctx) {
193                    maxX = tx & 15;
194                } else {
195                    maxX = 15;
196                }
197                int maxZ;
198                if (Z == ctz) {
199                    maxZ = tz & 15;
200                } else {
201                    maxZ = 15;
202                }
203
204                int chunkBlockX = X << 4;
205                int chunkBlockZ = Z << 4;
206
207                int xb = chunkBlockX - bx;
208                int zb = chunkBlockZ - bz;
209                for (int x = minX; x <= maxX; x++) {
210                    int xx = chunkBlockX + x;
211                    for (int z = minZ; z <= maxZ; z++) {
212                        int zz = chunkBlockZ + z;
213                        for (int yIndex = 0; yIndex < height; yIndex++) {
214                            int y = yIndex + minHeight;
215                            BlockState block = queue.getBlock(xx, y, zz);
216                            if (block == null) {
217                                block = AIR;
218                            }
219                            int xr = xb + x;
220                            int zr = zb + z;
221                            newBlocks[yIndex][xr][zr] = block;
222                        }
223                    }
224                }
225            });
226
227            final Runnable run = () -> {
228                int size = width * length;
229                int[] changes = new int[size];
230                int[] faces = new int[size];
231                int[] data = new int[size];
232                int[] air = new int[size];
233                int[] variety = new int[size];
234                int i = 0;
235                for (int x = 0; x < width; x++) {
236                    for (int z = 0; z < length; z++) {
237                        Set<BlockType> types = new HashSet<>();
238                        for (int yIndex = 0; yIndex < height; yIndex++) {
239                            BlockState old = oldBlocks[yIndex][x][z]; // Nullable
240                            BlockState now = newBlocks[yIndex][x][z]; // Not null
241                            if (now == null) {
242                                throw new NullPointerException(String.format(
243                                        "\"now\" block null attempting to perform plot analysis. Indexes: x=%d of %d, yIndex=%d" +
244                                                " of %d, z=%d of %d",
245                                        x,
246                                        width,
247                                        yIndex,
248                                        height,
249                                        z,
250                                        length
251                                ));
252                            }
253                            if (!now.equals(old) && !(old == null && now.getBlockType().equals(BlockTypes.AIR))) {
254                                changes[i]++;
255                            }
256                            if (now.getBlockType().getMaterial().isAir()) {
257                                air[i]++;
258                            } else {
259                                // check vertices
260                                // modifications_adjacent
261                                if (x > 0 && z > 0 && yIndex > 0 && x < width - 1 && z < length - 1 && yIndex < (height - 1)) {
262                                    if (newBlocks[yIndex - 1][x][z].getBlockType().getMaterial().isAir()) {
263                                        faces[i]++;
264                                    }
265                                    if (newBlocks[yIndex][x - 1][z].getBlockType().getMaterial().isAir()) {
266                                        faces[i]++;
267                                    }
268                                    if (newBlocks[yIndex][x][z - 1].getBlockType().getMaterial().isAir()) {
269                                        faces[i]++;
270                                    }
271                                    if (newBlocks[yIndex + 1][x][z].getBlockType().getMaterial().isAir()) {
272                                        faces[i]++;
273                                    }
274                                    if (newBlocks[yIndex][x + 1][z].getBlockType().getMaterial().isAir()) {
275                                        faces[i]++;
276                                    }
277                                    if (newBlocks[yIndex][x][z + 1].getBlockType().getMaterial().isAir()) {
278                                        faces[i]++;
279                                    }
280                                }
281
282                                if (!now.equals(now.getBlockType().getDefaultState())) {
283                                    data[i]++;
284                                }
285                                types.add(now.getBlockType());
286                            }
287                        }
288                        variety[i] = types.size();
289                        i++;
290                    }
291                }
292                // analyze plot
293                // put in analysis obj
294
295                // run whenDone
296                PlotAnalysis analysis = new PlotAnalysis();
297                analysis.changes = (int) (MathMan.getMean(changes) * 100);
298                analysis.faces = (int) (MathMan.getMean(faces) * 100);
299                analysis.data = (int) (MathMan.getMean(data) * 100);
300                analysis.air = (int) (MathMan.getMean(air) * 100);
301                analysis.variety = (int) (MathMan.getMean(variety) * 100);
302
303                analysis.changes_sd = (int) (MathMan.getSD(changes, analysis.changes) * 100);
304                analysis.faces_sd = (int) (MathMan.getSD(faces, analysis.faces) * 100);
305                analysis.data_sd = (int) (MathMan.getSD(data, analysis.data) * 100);
306                analysis.air_sd = (int) (MathMan.getSD(air, analysis.air) * 100);
307                analysis.variety_sd = (int) (MathMan.getSD(variety, analysis.variety) * 100);
308                whenDone.value = analysis;
309                whenDone.run();
310            };
311            queue.setCompleteTask(run);
312            queue.enqueue();
313        });
314    }
315
316    public void analyzePlot(final Plot origin, final RunnableVal<PlotAnalysis> whenDone) {
317        final ArrayDeque<CuboidRegion> zones = new ArrayDeque<>(origin.getRegions());
318        final ArrayList<PlotAnalysis> analysis = new ArrayList<>();
319        Runnable run = new Runnable() {
320            @Override
321            public void run() {
322                if (zones.isEmpty()) {
323                    if (!analysis.isEmpty()) {
324                        whenDone.value = new PlotAnalysis();
325                        for (PlotAnalysis data : analysis) {
326                            whenDone.value.air += data.air;
327                            whenDone.value.air_sd += data.air_sd;
328                            whenDone.value.changes += data.changes;
329                            whenDone.value.changes_sd += data.changes_sd;
330                            whenDone.value.data += data.data;
331                            whenDone.value.data_sd += data.data_sd;
332                            whenDone.value.faces += data.faces;
333                            whenDone.value.faces_sd += data.faces_sd;
334                            whenDone.value.variety += data.variety;
335                            whenDone.value.variety_sd += data.variety_sd;
336                        }
337                        whenDone.value.air /= analysis.size();
338                        whenDone.value.air_sd /= analysis.size();
339                        whenDone.value.changes /= analysis.size();
340                        whenDone.value.changes_sd /= analysis.size();
341                        whenDone.value.data /= analysis.size();
342                        whenDone.value.data_sd /= analysis.size();
343                        whenDone.value.faces /= analysis.size();
344                        whenDone.value.faces_sd /= analysis.size();
345                        whenDone.value.variety /= analysis.size();
346                        whenDone.value.variety_sd /= analysis.size();
347                    } else {
348                        whenDone.value = analysis.get(0);
349                    }
350                    List<Integer> result = new ArrayList<>();
351                    result.add(whenDone.value.changes);
352                    result.add(whenDone.value.faces);
353                    result.add(whenDone.value.data);
354                    result.add(whenDone.value.air);
355                    result.add(whenDone.value.variety);
356
357                    result.add(whenDone.value.changes_sd);
358                    result.add(whenDone.value.faces_sd);
359                    result.add(whenDone.value.data_sd);
360                    result.add(whenDone.value.air_sd);
361                    result.add(whenDone.value.variety_sd);
362                    PlotFlag<?, ?> plotFlag = GlobalFlagContainer.getInstance().getFlag(AnalysisFlag.class).createFlagInstance(
363                            result);
364                    PlotFlagAddEvent event = eventDispatcher.callFlagAdd(plotFlag, origin);
365                    if (event.getEventResult() == Result.DENY) {
366                        return;
367                    }
368                    origin.setFlag(event.getFlag());
369                    TaskManager.runTask(whenDone);
370                    return;
371                }
372                CuboidRegion region = zones.poll();
373                final Runnable task = this;
374                analyzeRegion(origin.getWorldName(), region, new RunnableVal<>() {
375                    @Override
376                    public void run(PlotAnalysis value) {
377                        analysis.add(value);
378                        TaskManager.runTaskLater(task, TaskTime.ticks(1L));
379                    }
380                });
381            }
382        };
383        run.run();
384    }
385
386    public final ArrayList<BlockVector2> getChunks(BlockVector2 region) {
387        ArrayList<BlockVector2> chunks = new ArrayList<>();
388        int sx = region.getX() << 5;
389        int sz = region.getZ() << 5;
390        for (int x = sx; x < sx + 32; x++) {
391            for (int z = sz; z < sz + 32; z++) {
392                chunks.add(BlockVector2.at(x, z));
393            }
394        }
395        return chunks;
396    }
397
398    public boolean scheduleRoadUpdate(PlotArea area, int extend) {
399        if (HybridUtils.UPDATE) {
400            return false;
401        }
402        HybridUtils.UPDATE = true;
403        Set<BlockVector2> regions = this.worldUtil.getChunkChunks(area.getWorldName());
404        return scheduleRoadUpdate(area, regions, extend, new LinkedHashSet<>());
405    }
406
407    public boolean scheduleSingleRegionRoadUpdate(Plot plot, int extend) {
408        if (HybridUtils.UPDATE) {
409            return false;
410        }
411        HybridUtils.UPDATE = true;
412        Set<BlockVector2> regions = new HashSet<>();
413        regions.add(RegionManager.getRegion(plot.getCenterSynchronous()));
414        return scheduleRoadUpdate(plot.getArea(), regions, extend, new LinkedHashSet<>());
415    }
416
417    public boolean scheduleRoadUpdate(
418            final PlotArea area,
419            Set<BlockVector2> regions,
420            final int extend,
421            Set<BlockVector2> chunks
422    ) {
423        HybridUtils.regions = regions;
424        HybridUtils.area = area;
425        HybridUtils.height = extend;
426        HybridUtils.chunks = chunks;
427        final int initial = 1024 * regions.size() + chunks.size();
428        final AtomicInteger count = new AtomicInteger(0);
429        TaskManager.runTask(new Runnable() {
430            @Override
431            public void run() {
432                if (!UPDATE) {
433                    Iterator<BlockVector2> iter = chunks.iterator();
434                    QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
435                    while (iter.hasNext()) {
436                        BlockVector2 chunk = iter.next();
437                        iter.remove();
438                        boolean regenedRoad = regenerateRoad(area, chunk, extend, queue);
439                        if (!regenedRoad) {
440                            LOGGER.info("Failed to regenerate roads in chunk {}", chunk);
441                        }
442                    }
443                    queue.enqueue();
444                    LOGGER.info("Cancelled road task");
445                    return;
446                }
447                count.incrementAndGet();
448                if (count.intValue() % 10 == 0) {
449                    LOGGER.info("Progress: {}%", 100 * (initial - (chunks.size() + 1024 * regions.size())) / initial);
450                }
451                if (HybridUtils.regions.isEmpty() && chunks.isEmpty()) {
452                    regeneratePlotWalls(area);
453
454                    HybridUtils.UPDATE = false;
455                    LOGGER.info("Finished road conversion");
456                    // CANCEL TASK
457                } else {
458                    final Runnable task = this;
459                    TaskManager.runTaskAsync(() -> {
460                        try {
461                            if (chunks.size() < 64) {
462                                if (!HybridUtils.regions.isEmpty()) {
463                                    Iterator<BlockVector2> iterator = HybridUtils.regions.iterator();
464                                    BlockVector2 loc = iterator.next();
465                                    iterator.remove();
466                                    LOGGER.info("Updating .mcr: {}, {} (approx 1024 chunks)", loc.getX(), loc.getZ());
467                                    LOGGER.info("- Remaining: {}", HybridUtils.regions.size());
468                                    chunks.addAll(getChunks(loc));
469                                    System.gc();
470                                }
471                            }
472                            if (!chunks.isEmpty()) {
473                                TaskManager.getPlatformImplementation().sync(() -> {
474                                    Iterator<BlockVector2> iterator = chunks.iterator();
475                                    if (chunks.size() >= 32) {
476                                        QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
477                                        for (int i = 0; i < 32; i++) {
478                                            final BlockVector2 chunk = iterator.next();
479                                            iterator.remove();
480                                            boolean regenedRoads = regenerateRoad(area, chunk, extend, queue);
481                                            if (!regenedRoads) {
482                                                LOGGER.info("Failed to regenerate the road in chunk {}", chunk);
483                                            }
484                                        }
485                                        queue.setCompleteTask(task);
486                                        queue.enqueue();
487                                        return null;
488                                    }
489                                    QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
490                                    while (!chunks.isEmpty()) {
491                                        final BlockVector2 chunk = iterator.next();
492                                        iterator.remove();
493                                        boolean regenedRoads = regenerateRoad(area, chunk, extend, queue);
494                                        if (!regenedRoads) {
495                                            LOGGER.info("Failed to regenerate road in chunk {}", chunk);
496                                        }
497                                    }
498                                    queue.setCompleteTask(task);
499                                    queue.enqueue();
500                                    return null;
501                                });
502                                return;
503                            }
504                        } catch (Exception e) {
505                            e.printStackTrace();
506                            Iterator<BlockVector2> iterator = HybridUtils.regions.iterator();
507                            BlockVector2 loc = iterator.next();
508                            iterator.remove();
509                            LOGGER.error(
510                                    "Error! Could not update '{}/region/r.{}.{}.mca' (Corrupt chunk?)",
511                                    area.getWorldHash(),
512                                    loc.getX(),
513                                    loc.getZ()
514                            );
515                        }
516                        TaskManager.runTaskLater(task, TaskTime.seconds(1L));
517                    });
518                }
519            }
520        });
521        return true;
522    }
523
524    public boolean setupRoadSchematic(Plot plot) {
525        final String world = plot.getWorldName();
526        final QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(world));
527        Location bot = plot.getBottomAbs().subtract(1, 0, 1);
528        Location top = plot.getTopAbs();
529        final HybridPlotWorld plotworld = (HybridPlotWorld) plot.getArea();
530        // Do not use plotworld#schematicStartHeight() here as we want to restore the pre 6.1.4 way of doing it if
531        //  USE_WALL_IN_ROAD_SCHEM_HEIGHT is false
532        int schemY = Settings.Schematics.USE_WALL_IN_ROAD_SCHEM_HEIGHT ?
533                Math.min(plotworld.PLOT_HEIGHT, Math.min(plotworld.WALL_HEIGHT, plotworld.ROAD_HEIGHT)) : plotworld.ROAD_HEIGHT;
534        int sx = bot.getX() - plotworld.ROAD_WIDTH + 1;
535        int sz = bot.getZ() + 1;
536        int sy = Settings.Schematics.PASTE_ROAD_ON_TOP ? schemY : plot.getArea().getMinGenHeight();
537        int ex = bot.getX();
538        int ez = top.getZ();
539        int ey = get_ey(plotworld, queue, sx, ex, sz, ez, sy);
540        int bz = sz - plotworld.ROAD_WIDTH;
541        int tz = sz - 1;
542        int ty = get_ey(plotworld, queue, sx, ex, bz, tz, sy);
543
544        final Set<CuboidRegion> sideRoad = Collections.singleton(RegionUtil.createRegion(sx, ex, sy, ey, sz, ez));
545        final Set<CuboidRegion> intersection = Collections.singleton(RegionUtil.createRegion(sx, ex, sy, ty, bz, tz));
546
547        final String dir = Settings.Paths.SCHEMATICS + File.separator + "GEN_ROAD_SCHEMATIC" + File.separator + plot
548                .getArea()
549                .toString() + File.separator;
550
551        this.schematicHandler.getCompoundTag(world, sideRoad)
552                .whenComplete((compoundTag, throwable) -> {
553                    schematicHandler.save(compoundTag, dir + "sideroad.schem");
554                    schematicHandler.getCompoundTag(world, intersection)
555                            .whenComplete((c, t) -> {
556                                schematicHandler.save(c, dir + "intersection.schem");
557                                plotworld.ROAD_SCHEMATIC_ENABLED = true;
558                                try {
559                                    plotworld.setupSchematics();
560                                } catch (SchematicHandler.UnsupportedFormatException e) {
561                                    e.printStackTrace();
562                                }
563                            });
564                });
565        return true;
566    }
567
568    private int get_ey(final HybridPlotWorld hpw, QueueCoordinator queue, int sx, int ex, int sz, int ez, int sy) {
569        int ey = sy;
570        for (int x = sx; x <= ex; x++) {
571            for (int z = sz; z <= ez; z++) {
572                for (int y = sy; y <= hpw.getMaxGenHeight(); y++) {
573                    if (y > ey) {
574                        BlockState block = queue.getBlock(x, y, z);
575                        if (!block.getBlockType().getMaterial().isAir()) {
576                            ey = y;
577                        }
578                    }
579                }
580            }
581        }
582        return ey;
583    }
584
585    /**
586     * Regenerate the road in a chunk in a plot area.
587     *
588     * @param area             Plot area to regenerate road for
589     * @param chunk            Chunk location to regenerate
590     * @param extend           How far to extend setting air above the road
591     * @param queueCoordinator {@link QueueCoordinator} to use to set the blocks. Null if one should be created and enqueued
592     * @return if successful
593     * @since 6.6.0
594     */
595    public boolean regenerateRoad(
596            final PlotArea area,
597            final BlockVector2 chunk,
598            int extend,
599            @Nullable QueueCoordinator queueCoordinator
600    ) {
601        int x = chunk.getX() << 4;
602        int z = chunk.getZ() << 4;
603        int ex = x + 15;
604        int ez = z + 15;
605        HybridPlotWorld plotWorld = (HybridPlotWorld) area;
606        if (!plotWorld.ROAD_SCHEMATIC_ENABLED) {
607            return false;
608        }
609        AtomicBoolean toCheck = new AtomicBoolean(false);
610        if (plotWorld.getType() == PlotAreaType.PARTIAL) {
611            boolean chunk1 = area.contains(x, z);
612            boolean chunk2 = area.contains(ex, ez);
613            if (!chunk1 && !chunk2) {
614                return false;
615            } else {
616                toCheck.set(chunk1 ^ chunk2);
617            }
618        }
619        PlotManager manager = area.getPlotManager();
620        PlotId id1 = manager.getPlotId(x, 0, z);
621        PlotId id2 = manager.getPlotId(ex, 0, ez);
622        x = x - plotWorld.ROAD_OFFSET_X;
623        z -= plotWorld.ROAD_OFFSET_Z;
624        final int finalX = x;
625        final int finalZ = z;
626        final boolean enqueue;
627        final QueueCoordinator queue;
628        if (queueCoordinator == null) {
629            queue = this.blockQueue.getNewQueue(worldUtil.getWeWorld(plotWorld.getWorldName()));
630            enqueue = true;
631        } else {
632            queue = queueCoordinator;
633            enqueue = false;
634        }
635        if (id1 == null || id2 == null || id1 != id2) {
636            if (id1 != null) {
637                Plot p1 = area.getPlotAbs(id1);
638                if (p1 != null && p1.hasOwner() && p1.isMerged()) {
639                    toCheck.set(true);
640                }
641            }
642            if (id2 != null && !toCheck.get()) {
643                Plot p2 = area.getPlotAbs(id2);
644                if (p2 != null && p2.hasOwner() && p2.isMerged()) {
645                    toCheck.set(true);
646                }
647            }
648            short size = plotWorld.SIZE;
649            for (int X = 0; X < 16; X++) {
650                short absX = (short) ((finalX + X) % size);
651                for (int Z = 0; Z < 16; Z++) {
652                    short absZ = (short) ((finalZ + Z) % size);
653                    if (absX < 0) {
654                        absX += size;
655                    }
656                    if (absZ < 0) {
657                        absZ += size;
658                    }
659                    boolean condition;
660                    if (toCheck.get()) {
661                        condition = manager.getPlotId(
662                                finalX + X + plotWorld.ROAD_OFFSET_X,
663                                1,
664                                finalZ + Z + plotWorld.ROAD_OFFSET_Z
665                        ) == null;
666                    } else {
667                        boolean gx = absX > plotWorld.PATH_WIDTH_LOWER;
668                        boolean gz = absZ > plotWorld.PATH_WIDTH_LOWER;
669                        boolean lx = absX < plotWorld.PATH_WIDTH_UPPER;
670                        boolean lz = absZ < plotWorld.PATH_WIDTH_UPPER;
671                        condition = !gx || !gz || !lx || !lz;
672                    }
673                    if (condition) {
674                        BaseBlock[] blocks = plotWorld.G_SCH.get(MathMan.pair(absX, absZ));
675                        int minY = plotWorld.getRoadYStart();
676                        int maxDy = Math.max(extend, blocks.length);
677                        for (int dy = 0; dy < maxDy; dy++) {
678                            if (dy > blocks.length - 1) {
679                                queue.setBlock(
680                                        finalX + X + plotWorld.ROAD_OFFSET_X,
681                                        minY + dy,
682                                        finalZ + Z + plotWorld.ROAD_OFFSET_Z,
683                                        WEExtent.AIRBASE
684                                );
685                            } else {
686                                BaseBlock block = blocks[dy];
687                                if (block != null) {
688                                    queue.setBlock(
689                                            finalX + X + plotWorld.ROAD_OFFSET_X,
690                                            minY + dy,
691                                            finalZ + Z + plotWorld.ROAD_OFFSET_Z,
692                                            block
693                                    );
694                                } else {
695                                    queue.setBlock(
696                                            finalX + X + plotWorld.ROAD_OFFSET_X,
697                                            minY + dy,
698                                            finalZ + Z + plotWorld.ROAD_OFFSET_Z,
699                                            WEExtent.AIRBASE
700                                    );
701                                }
702                            }
703                        }
704                        BiomeType biome = plotWorld.G_SCH_B.get(MathMan.pair(absX, absZ));
705                        if (biome != null) {
706                            queue.setBiome(finalX + X + plotWorld.ROAD_OFFSET_X, finalZ + Z + plotWorld.ROAD_OFFSET_Z, biome);
707                        } else {
708                            queue.setBiome(
709                                    finalX + X + plotWorld.ROAD_OFFSET_X,
710                                    finalZ + Z + plotWorld.ROAD_OFFSET_Z,
711                                    plotWorld.getPlotBiome()
712                            );
713                        }
714                    }
715                }
716            }
717            if (enqueue) {
718                queue.enqueue();
719            }
720            return true;
721        }
722        return false;
723    }
724
725}