Initial commit

src/main/java/me/youhavetrouble/blockedit/BEPlayer.java

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+package me.youhavetrouble.blockedit;
+
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.util.BoundingBox;
+
+import java.util.HashMap;
+import java.util.UUID;
+
+public class BEPlayer {
+
+    private static final HashMap<UUID, BEPlayer> playerHashMap = new HashMap<>();
+    private BoundingBox selection;
+    private Location selectionPoint1, selectionPoint2;
+
+    public BoundingBox getSelection() {
+        return selection;
+    }
+
+    private void updateSelection() {
+        if (selectionPoint1 == null || selectionPoint2 == null) return;
+        selection = BoundingBox.of(selectionPoint1, selectionPoint2);
+    }
+
+    public void setSelectionPoint1(Location selectionPoint1) {
+        if (this.selectionPoint1 != null && this.selectionPoint1.equals(selectionPoint1)) return;
+        this.selectionPoint1 = selectionPoint1;
+        updateSelection();
+    }
+
+    public void setSelectionPoint2(Location selectionPoint2) {
+        if (this.selectionPoint2 != null && this.selectionPoint2.equals(selectionPoint2)) return;
+        this.selectionPoint2 = selectionPoint2;
+        updateSelection();
+    }
+
+    /**
+     * @return Clone of selectionPoint1
+     */
+    public Location getSelectionPoint1() {
+        return selectionPoint1.clone();
+    }
+
+    /**
+     * @return Clone of selectionPoint2
+     */
+    public Location getSelectionPoint2() {
+        return selectionPoint2.clone();
+    }
+
+    protected static void addPlayer(Player player) {
+        playerHashMap.put(player.getUniqueId(), new BEPlayer());
+    }
+
+    protected static void removePlayer(Player player) {
+        playerHashMap.remove(player.getUniqueId());
+    }
+
+    public static BEPlayer getByPlayer(Player player) {
+        return getByUuid(player.getUniqueId());
+    }
+
+    protected static BEPlayer getByUuid(UUID uuid) {
+        return playerHashMap.get(uuid);
+    }
+}

src/main/java/me/youhavetrouble/blockedit/BlockEdit.java

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+package me.youhavetrouble.blockedit;
+
+import me.youhavetrouble.blockedit.api.BlockEditWands;
+import me.youhavetrouble.blockedit.commands.WandCommand;
+import me.youhavetrouble.blockedit.wands.SelectionWand;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public final class BlockEdit extends JavaPlugin {
+
+    private static BlockEdit plugin;
+
+    @Override
+    public void onEnable() {
+        plugin = this;
+
+        getServer().getPluginManager().registerEvents(new JoinLeaveListener(), this);
+
+        SelectionWand selectionWand = new SelectionWand();
+        BlockEditWands.registerWand(selectionWand);
+        getServer().getPluginManager().registerEvents(selectionWand, this);
+
+        getCommand("test").setExecutor(new TestCommand());
+
+        WandCommand wandCommand = new WandCommand();
+        getCommand("/wand").setExecutor(wandCommand);
+        getCommand("/wand").setTabCompleter(wandCommand);
+
+    }
+
+
+    public static BlockEdit getPlugin() {
+        return plugin;
+    }
+}

src/main/java/me/youhavetrouble/blockedit/JoinLeaveListener.java

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+package me.youhavetrouble.blockedit;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+public class JoinLeaveListener implements Listener {
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        BEPlayer.addPlayer(event.getPlayer());
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        BEPlayer.removePlayer(event.getPlayer());
+    }
+}

src/main/java/me/youhavetrouble/blockedit/TestCommand.java

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+package me.youhavetrouble.blockedit;
+
+import me.youhavetrouble.blockedit.util.ChunkWork;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.scheduler.BukkitTask;
+import org.bukkit.util.BoundingBox;
+import org.jetbrains.annotations.NotNull;
+
+public class TestCommand implements CommandExecutor {
+
+    BukkitTask task;
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (sender instanceof Player player) {
+
+            Location location = player.getLocation();
+            ChunkWork work = WorkSplitter.locationToChunkWork(location.getX(), location.getZ(), location.getWorld());
+            if (task != null) {
+                task.cancel();
+            }
+            task = Bukkit.getScheduler().runTaskTimerAsynchronously(BlockEdit.getPlugin(),() -> {
+                BoundingBox box = work.getWorkspace(null);
+                for (int y = 0; y< 255; y++) {
+                    location.getWorld().spawnParticle(Particle.END_ROD, box.getMaxX(), y, box.getMaxZ(), 0, 0.01, 0.01, 0.01);
+                    location.getWorld().spawnParticle(Particle.END_ROD, box.getMinX(), y, box.getMinZ(), 0, 0.01, 0.01, 0.01);
+                }
+            }, 0, 4);
+
+
+
+        }
+        return true;
+    }
+}

src/main/java/me/youhavetrouble/blockedit/WorkSplitter.java

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+package me.youhavetrouble.blockedit;
+
+import me.youhavetrouble.blockedit.util.ChunkWork;
+import org.bukkit.World;
+import org.bukkit.util.BoundingBox;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class WorkSplitter {
+
+    public static Set<ChunkWork> getOperatedOnChunks(BoundingBox boundingBox, World world) {
+        HashSet<ChunkWork> chunks = new HashSet<>();
+        for (double x = boundingBox.getMinX(); x<= boundingBox.getMaxX(); x+=16) {
+            for (double z = boundingBox.getMinZ(); z <= boundingBox.getMaxZ(); z+=16) {
+                ChunkWork chunkWork = locationToChunkWork(x,z, world);
+                if (chunks.contains(chunkWork)) continue;
+                chunks.add(chunkWork);
+            }
+        }
+        return chunks;
+    }
+
+    public static ChunkWork locationToChunkWork(double x, double z, World world) {
+        int chunkX = (int) x >> 4;
+        int chunkZ = (int) z >> 4;
+        return new ChunkWork(chunkX, chunkZ, world);
+    }
+
+}

src/main/java/me/youhavetrouble/blockedit/api/BlockEditWand.java

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+package me.youhavetrouble.blockedit.api;
+
+
+import net.kyori.adventure.text.Component;
+
+public interface BlockEditWand {
+
+    /**
+     * A unique id to identify the wand. Also used in //wand command.
+     */
+    String getId();
+
+    /**
+     * Name of the wand that will be used as wand item name.
+     */
+    Component getName();
+
+    /**
+     * Custom model data for the wand item. Set to 0 to not give the wand custom model data.
+     */
+    int getCustomModelData();
+
+    /**
+     * Permission for the wand usage
+     */
+    String getPermission();
+
+}

src/main/java/me/youhavetrouble/blockedit/api/BlockEditWands.java

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+package me.youhavetrouble.blockedit.api;
+
+import com.google.common.collect.ImmutableSet;
+import me.youhavetrouble.blockedit.BlockEdit;
+import org.bukkit.Material;
+import org.bukkit.NamespacedKey;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.persistence.PersistentDataType;
+
+import java.util.Collection;
+import java.util.HashMap;
+
+public class BlockEditWands {
+
+    private static final NamespacedKey wandKey = new NamespacedKey(BlockEdit.getPlugin(), "wand");
+    private static final HashMap<String, BlockEditWand> wands = new HashMap<>();
+
+    public static NamespacedKey getWandKey() {
+        return wandKey;
+    }
+
+    /**
+     * @param itemStack ItemStack to check
+     * @return WandId if a wand, null otherwise
+     */
+    public static String isWand(ItemStack itemStack) {
+        if (itemStack == null) return null;
+        if (itemStack.getItemMeta() == null) return null;
+        if (!itemStack.getItemMeta().getPersistentDataContainer().has(BlockEditWands.getWandKey(), PersistentDataType.STRING)) return null;
+        return itemStack.getItemMeta().getPersistentDataContainer().get(BlockEditWands.getWandKey(), PersistentDataType.STRING);
+    }
+
+    /**
+     * @return Immutable set of registered wand IDs
+     */
+    public static Collection<String> getWandIds() {
+        return ImmutableSet.copyOf(wands.keySet());
+    }
+
+    public static ItemStack getWand(String wandId) {
+        BlockEditWand wand = wands.get(wandId);
+        if (wand == null) return null;
+        ItemStack itemStack = new ItemStack(Material.WOODEN_AXE);
+        ItemMeta meta = itemStack.getItemMeta();
+        if (wand.getName() != null)
+            meta.displayName(wand.getName());
+        if (wand.getCustomModelData() != 0)
+            meta.setCustomModelData(wand.getCustomModelData());
+        meta.getPersistentDataContainer().set(BlockEditWands.getWandKey(), PersistentDataType.STRING, wandId);
+        itemStack.setItemMeta(meta);
+        return itemStack;
+    }
+
+
+    /**
+     * PSA: Wand IDs will get converted to lowercase.
+     * @return true if registered successfully, false if not
+     */
+    public static boolean registerWand(BlockEditWand wand) {
+        if (wands.containsKey(wand.getId().toLowerCase())) {
+            BlockEdit.getPlugin().getLogger().warning("Tried to register wand with id \""+wand.getId()+"\", but wand with that id already exists!");
+            return false;
+        }
+        wands.put(wand.getId().toLowerCase(), wand);
+        return true;
+    }
+
+
+}

src/main/java/me/youhavetrouble/blockedit/commands/WandCommand.java

@@ -0,0 +1,44 @@
+package me.youhavetrouble.blockedit.commands;
+
+import me.youhavetrouble.blockedit.api.BlockEditWands;
+import net.kyori.adventure.text.Component;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.util.StringUtil;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class WandCommand implements TabExecutor {
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!(sender instanceof Player player)) return true;
+        ItemStack wand;
+        if (args.length == 0) {
+            wand = BlockEditWands.getWand("select");
+            if (wand == null) return true;
+        } else {
+            wand = BlockEditWands.getWand(args[0]);
+            if (wand == null) {
+                player.sendMessage(Component.text("Could not find wand with id "+args[0]));
+                return true;
+            }
+        }
+        player.getInventory().addItem(wand);
+        return true;
+    }
+
+
+    @Override
+    public @Nullable List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
+        if (args.length == 1)
+            return StringUtil.copyPartialMatches(args[0], BlockEditWands.getWandIds(), new ArrayList<>());
+        return null;
+    }
+}

src/main/java/me/youhavetrouble/blockedit/util/ChunkWork.java

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+package me.youhavetrouble.blockedit.util;
+
+import org.bukkit.World;
+import org.bukkit.util.BoundingBox;
+
+public class ChunkWork {
+
+    private final int x, z, minHeight, maxHeight;
+
+    public ChunkWork(double x, double z, World world) {
+        this.x = (int) x;
+        this.z = (int) z;
+        if (world == null) {
+            this.maxHeight = 256;
+            this.minHeight = 0;
+        } else {
+            this.minHeight = world.getMinHeight();
+            this.maxHeight = world.getMaxHeight();
+        }
+    }
+
+    public BoundingBox getWorkspace(BoundingBox selection) {
+        // TODO make it return shared space of getChunkBox and selection to cull some of the blocks from iterations
+        return getChunkBox();
+    }
+
+    private BoundingBox getChunkBox() {
+        return new BoundingBox(x*16, minHeight, z*16, (x+1)*16, maxHeight, (z+1)*16);
+    }
+
+    public int getX() {
+        return x;
+    }
+
+    public int getZ() {
+        return z;
+    }
+}

src/main/java/me/youhavetrouble/blockedit/wands/SelectionWand.java

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+package me.youhavetrouble.blockedit.wands;
+
+import me.youhavetrouble.blockedit.BEPlayer;
+import me.youhavetrouble.blockedit.api.BlockEditWand;
+import me.youhavetrouble.blockedit.api.BlockEditWands;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.TextDecoration;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
+
+public class SelectionWand implements Listener, BlockEditWand {
+
+    @Override
+    public String getId() {
+        return "select";
+    }
+
+    @Override
+    public Component getName() {
+        return Component.text("Selection Wand").decoration(TextDecoration.ITALIC, false);
+    }
+
+    @Override
+    public int getCustomModelData() {
+        return 0;
+    }
+
+    @Override
+    public String getPermission() {
+        return "blockedit.selectwand";
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onPlayerSelectBlock(PlayerInteractEvent event) {
+        Player player = event.getPlayer();
+        String wandId = BlockEditWands.isWand(event.getItem());
+        if (wandId == null) return;
+        if (!wandId.equals(getId())) return;
+        if (!player.hasPermission(getPermission())) return;
+        Block block = event.getClickedBlock();
+        if (block == null) return;
+        Action action = event.getAction();
+        if (action.equals(Action.LEFT_CLICK_BLOCK)) {
+            event.setCancelled(true);
+            BEPlayer.getByPlayer(player).setSelectionPoint1(block.getLocation());
+            player.sendMessage(Component.text("First point set"));
+            return;
+        }
+        if (action.equals(Action.RIGHT_CLICK_BLOCK)) {
+            event.setCancelled(true);
+            BEPlayer.getByPlayer(player).setSelectionPoint2(block.getLocation());
+            player.sendMessage(Component.text("Second point set"));
+            return;
+        }
+    }
+}

src/main/resources/plugin.yml

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+name: BlockEdit
+version: ${project.version}
+main: me.youhavetrouble.blockedit.BlockEdit
+api-version: 1.17
+authors: [ YouHaveTrouble ]
+description: Modern WorldEdit alternative
+website: youhavetrouble.me
+commands:
+  test:
+    description: test
+  /wand:
+    permission: blockedit.wand
+    description: gives you a blockedit wand

src/test/java/WorkSplitterTest.java

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+import me.youhavetrouble.blockedit.WorkSplitter;
+import me.youhavetrouble.blockedit.util.ChunkWork;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class WorkSplitterTest {
+
+
+    /**
+     * Test if location -> chunk location works properly
+     */
+    @Test
+    public void testLocationToChunk() {
+        ChunkWork testOne = new ChunkWork(0,0, null);
+        ChunkWork workSplitterTestOne = WorkSplitter.locationToChunkWork(15, 15, null);
+
+        ChunkWork testTwo = WorkSplitter.locationToChunkWork(10.233D, -138.788D, null);
+        ChunkWork workSplitterTestTwo = new ChunkWork(0,-9, null);
+
+        assertEquals(workSplitterTestOne.getX(), testOne.getX());
+        assertEquals(workSplitterTestOne.getZ(), testOne.getZ());
+
+        assertEquals(workSplitterTestTwo.getX(), testTwo.getX());
+        assertEquals(workSplitterTestTwo.getZ(), testTwo.getZ());
+    }
+
+}