From f5f13ddbe36e3d88ff3ff3caa5696b3ab0a9b2d5 Mon Sep 17 00:00:00 2001
From: Jesse Boyd <jessepaleg@gmail.com>
Date: Wed, 25 Jul 2018 18:26:05 +1000
Subject: [PATCH] Add anvil command to delete all chunks matching a specified
 biome

---
 .../boydti/fawe/command/AnvilCommands.java    | 26 ++++++++++++++++++-
 .../filters/DeleteBiomeFilterSimple.java      | 23 ++++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DeleteBiomeFilterSimple.java

diff --git a/core/src/main/java/com/boydti/fawe/command/AnvilCommands.java b/core/src/main/java/com/boydti/fawe/command/AnvilCommands.java
index f1437efb..ff5ce0ee 100644
--- a/core/src/main/java/com/boydti/fawe/command/AnvilCommands.java
+++ b/core/src/main/java/com/boydti/fawe/command/AnvilCommands.java
@@ -33,6 +33,8 @@ import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.util.command.binding.Switch;
 import com.sk89q.worldedit.util.command.parametric.Optional;
 import com.sk89q.worldedit.world.World;
+import com.sk89q.worldedit.world.biome.BaseBiome;
+
 import java.io.IOException;
 import java.io.RandomAccessFile;
 import java.util.*;
@@ -285,6 +287,17 @@ public class AnvilCommands {
         if (result != null) player.print(BBC.getPrefix() + BBC.VISITOR_BLOCK.format(result.getTotal()));
     }
 
+    @Command(
+            aliases = {"deletebiomechunks", },
+            desc = "Delete chunks matching a specific biome"
+    )
+    @CommandPermissions("worldedit.anvil.trimallair")
+    public void deleteBiome(Player player, String folder, BaseBiome biome, @Switch('u') boolean unsafe) {
+        DeleteBiomeFilterSimple filter = new DeleteBiomeFilterSimple(biome);
+        DeleteBiomeFilterSimple result = runWithWorld(player, folder, filter, true, unsafe);
+        if (result != null) player.print(BBC.getPrefix() + BBC.VISITOR_BLOCK.format(result.getTotal()));
+    }
+
     @Command(
             aliases = {"trimallair", },
             desc = "Trim all air in the world"
@@ -299,7 +312,7 @@ public class AnvilCommands {
 
     @Command(
             aliases = {"debugfixair", },
-            desc = "debug"
+            desc = "debug - do not use"
     )
     @CommandPermissions("worldedit.anvil.debugfixair")
     public void debugfixair(Player player, String folder) throws WorldEditException {
@@ -308,6 +321,17 @@ public class AnvilCommands {
         if (result != null) player.print(BBC.getPrefix() + BBC.VISITOR_BLOCK.format(result.getTotal()));
     }
 
+    @Command(
+            aliases = {"debugfixroads", },
+            desc = "debug - do not use"
+    )
+    @CommandPermissions("worldedit.anvil.debugfixroads")
+    public void debugfixroads(Player player, String folder) throws WorldEditException {
+        DebugFixP2Roads filter = new DebugFixP2Roads();
+        DebugFixP2Roads result = runWithWorld(player, folder, filter, true, true);
+        if (result != null) player.print(BBC.getPrefix() + BBC.VISITOR_BLOCK.format(result.getTotal()));
+    }
+
     @Command(
             aliases = {"replaceallpattern", "reap", "repallpat"},
             usage = "<folder> [from-block] <to-pattern>",
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DeleteBiomeFilterSimple.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DeleteBiomeFilterSimple.java
new file mode 100644
index 00000000..3cb7fb2d
--- /dev/null
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DeleteBiomeFilterSimple.java
@@ -0,0 +1,23 @@
+package com.boydti.fawe.jnbt.anvil.filters;
+
+import com.boydti.fawe.jnbt.anvil.MCAChunk;
+import com.boydti.fawe.jnbt.anvil.MCAFilterCounter;
+import com.boydti.fawe.object.number.MutableLong;
+import com.sk89q.worldedit.world.biome.BaseBiome;
+
+public class DeleteBiomeFilterSimple extends MCAFilterCounter {
+    private final int id;
+
+    public DeleteBiomeFilterSimple(BaseBiome biome) {
+        this.id = biome.getId();
+    }
+
+    @Override
+    public MCAChunk applyChunk(MCAChunk chunk, MutableLong cache) {
+        if ((chunk.biomes[0] & 0xFF) == id) {
+            chunk.setDeleted(true);
+            cache.add(Character.MAX_VALUE);
+        }
+        return null;
+    }
+}