Start working on single plot areas

Core/pom.xml

@@ -92,6 +92,12 @@
       <version>1.3.72</version>
       <scope>runtime</scope>
     </dependency>
+    <dependency>
+      <groupId>com.github.davidmoten</groupId>
+      <artifactId>rtree</artifactId>
+      <version>0.8.7</version>
+      <scope>runtime</scope>
+    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>

Core/src/main/java/com/plotsquared/core/command/Area.java

@@ -33,6 +33,7 @@ import com.plotsquared.core.events.TeleportCause;
 import com.plotsquared.core.generator.AugmentedUtils;
 import com.plotsquared.core.generator.HybridPlotWorld;
 import com.plotsquared.core.location.Location;
+import com.plotsquared.core.player.ConsolePlayer;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.PlotAreaTerrainType;
@@ -50,9 +51,18 @@ import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.RunnableVal3;
+import com.sk89q.worldedit.LocalSession;
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.entity.Player;
+import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
+import com.sk89q.worldedit.extent.clipboard.io.BuiltInClipboardFormat;
+import com.sk89q.worldedit.extent.clipboard.io.ClipboardWriter;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.regions.CuboidRegion;
+import com.sk89q.worldedit.regions.Region;
 
+import java.io.File;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Objects;
@@ -74,6 +84,102 @@ public class Area extends SubCommand {
             return false;
         }
         switch (args[0].toLowerCase()) {
+            case "single":
+                if (player instanceof ConsolePlayer) {
+                    MainUtil.sendMessage(player, Captions.IS_CONSOLE);
+                    return false;
+                }
+                if (!Permissions.hasPermission(player, Captions.PERMISSION_AREA_CREATE)) {
+                    MainUtil.sendMessage(player, Captions.NO_PERMISSION, Captions.PERMISSION_AREA_CREATE);
+                    return false;
+                }
+                if (args.length < 2) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_NEEDS_NAME);
+                    return false;
+                }
+                if (PlotSquared.get().getPlotArea(player.getLocation().getWorld(), args[1]) != null) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_NAME_TAKEN);
+                    return false;
+                }
+                final LocalSession localSession = WorldEdit.getInstance().getSessionManager().getIfPresent(player.toActor());
+                if (localSession == null) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_MISSING_SELECTION);
+                    return false;
+                }
+                Region selectedRegion = null;
+                try {
+                    selectedRegion = localSession.getSelection(((Player) player.toActor()).getWorld());
+                } catch (final Exception ignored) {}
+                if (selectedRegion == null) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_MISSING_SELECTION);
+                    return false;
+                }
+                if (selectedRegion.getWidth() != selectedRegion.getLength()) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_NOT_SQUARE);
+                    return false;
+                }
+                if (PlotSquared.get().getPlotAreaManager().getPlotAreas(
+                    Objects.requireNonNull(selectedRegion.getWorld()).getName(), CuboidRegion.makeCuboid(selectedRegion)).length != 0) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_OVERLAPPING);
+                }
+                // There's only one plot in the area...
+                final PlotId plotId = new PlotId(1, 1);
+                final HybridPlotWorld hybridPlotWorld = new HybridPlotWorld(player.getLocation().getWorld(), args[1],
+                    Objects.requireNonNull(PlotSquared.imp()).getDefaultGenerator(), plotId, plotId);
+                // Plot size is the same as the region width
+                hybridPlotWorld.SIZE = (short) selectedRegion.getWidth();
+                // We use a schematic generator
+                hybridPlotWorld.setTerrain(PlotAreaTerrainType.ALL);
+                // It is always a partial plot world
+                hybridPlotWorld.setType(PlotAreaType.PARTIAL);
+                // We save the schematic :D
+                final File parentFile = MainUtil.getFile(PlotSquared.imp().getDirectory(), "schematics" + File.separator +
+                    "GEN_ROAD_SCHEMATIC" + File.separator + hybridPlotWorld.getWorldName() + File.separator +
+                    hybridPlotWorld.getId());
+                if (!parentFile.exists() && !parentFile.mkdirs()) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_COULD_NOT_MAKE_DIRECTORIES);
+                    return false;
+                }
+                final File file = new File(parentFile, "plot.schem");
+                try (final ClipboardWriter clipboardWriter = BuiltInClipboardFormat.SPONGE_SCHEMATIC.getWriter(new FileOutputStream(file))) {
+                    final BlockArrayClipboard clipboard = new BlockArrayClipboard(selectedRegion);
+                    clipboardWriter.write(clipboard);
+                } catch (final Exception e) {
+                    MainUtil.sendMessage(player, Captions.SINGLE_AREA_FAILED_TO_SAVE);
+                    e.printStackTrace();
+                    return false;
+                }
+                // Now the schematic is saved, which is wonderful!
+                final SetupObject singleSetup = new SetupObject();
+                singleSetup.world = hybridPlotWorld.getWorldName();
+                singleSetup.id = hybridPlotWorld.getId();
+                singleSetup.terrain = hybridPlotWorld.getTerrain();
+                singleSetup.type = hybridPlotWorld.getType();
+                singleSetup.plotManager = PlotSquared.imp().getPluginName();
+                singleSetup.setupGenerator = PlotSquared.imp().getPluginName();
+                singleSetup.step = hybridPlotWorld.getSettingNodes();
+                singleSetup.max = plotId;
+                singleSetup.min = plotId;
+                Runnable singleRun = () -> {
+                    final String world = SetupUtils.manager.setupWorld(singleSetup);
+                    if (WorldUtil.IMP.isWorld(world)) {
+                        PlotSquared.get().loadWorld(world, null);
+                        Captions.SETUP_FINISHED.send(player);
+                        player.teleport(WorldUtil.IMP.getSpawn(world),
+                            TeleportCause.COMMAND);
+                    } else {
+                        MainUtil.sendMessage(player,
+                            "An error occurred while creating the world: " + hybridPlotWorld
+                                .getWorldName());
+                    }
+                };
+                if (hasConfirmation(player)) {
+                    CmdConfirm.addPending(player,
+                        getCommandString() + " create pos2 (Creates world)", singleRun);
+                } else {
+                    singleRun.run();
+                }
+                return true;
             case "c":
             case "setup":
             case "create":

Core/src/main/java/com/plotsquared/core/configuration/Captions.java

@@ -783,6 +783,16 @@ public enum Captions implements Caption {
     GENERIC_INVALID_CHOICE("invalid choice", "Generic"),
     //</editor-fold>
 
+    //<editor-fold des="Single area">
+    SINGLE_AREA_MISSING_SELECTION("$2Error! You need to select a square region", "Single"),
+    SINGLE_AREA_NOT_SQUARE("$2Error! Your selection needs to be a square", "Single"),
+    SINGLE_AREA_OVERLAPPING("$2Error! Your selection overlaps with an existing plot area", "Single"),
+    SINGLE_AREA_NEEDS_NAME("$2Error! Please specify a plot name: /plot area single <name>", "Single"),
+    SINGLE_AREA_NAME_TAKEN("$2Error! The plot name is already taken", "Single"),
+    SINGLE_AREA_FAILED_TO_SAVE("$2Error! Failed to save the area schematic", "Single"),
+    SINGLE_AREA_COULD_NOT_MAKE_DIRECTORIES("$2Error! Failed to create the schematic directory", "Single"),
+    //</editor-fold>
+
     /**
      * Legacy Configuration Conversion
      */

Core/src/main/java/com/plotsquared/core/generator/HybridPlotWorld.java

@@ -195,8 +195,16 @@ public class HybridPlotWorld extends ClassicPlotWorld {
     public void setupSchematics() throws SchematicHandler.UnsupportedFormatException {
         this.G_SCH = new HashMap<>();
         this.G_SCH_B = new HashMap<>();
-        File root = MainUtil.getFile(PlotSquared.get().IMP.getDirectory(),
+
-            "schematics/GEN_ROAD_SCHEMATIC/" + this.getWorldName());
+        // Try to determine root. This means that plot areas can have separate schematic
+        // directories
+        File root;
+        if (!(root = MainUtil.getFile(PlotSquared.get().IMP.getDirectory(), "schematics/GEN_ROAD_SCHEMATIC/" +
+            this.getWorldName() + "/" + this.getId())).exists()) {
+            root = MainUtil.getFile(PlotSquared.get().IMP.getDirectory(),
+                "schematics/GEN_ROAD_SCHEMATIC/" + this.getWorldName());
+        }
+
         File schematic1File = new File(root, "sideroad.schem");
         if (!schematic1File.exists())
             schematic1File = new File(root, "sideroad.schematic");