From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nahuel <nahueldolores@hotmail.com>
Date: Sat, 9 Jan 2021 15:33:52 +0100
Subject: [PATCH] Add StructureGenerateEvent

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 3 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, see <https://www.gnu.org/licenses/>.

Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com>

diff --git a/src/main/java/net/pl3x/purpur/event/world/StructureGenerateEvent.java b/src/main/java/net/pl3x/purpur/event/world/StructureGenerateEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..e77f45f761368da9b230c425d975a717cf4d10fd
--- /dev/null
+++ b/src/main/java/net/pl3x/purpur/event/world/StructureGenerateEvent.java
@@ -0,0 +1,68 @@
+package net.pl3x.purpur.event.world;
+
+import org.bukkit.Bukkit;
+import org.bukkit.StructureType;
+import org.bukkit.World;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.world.WorldEvent;
+import org.jetbrains.annotations.NotNull;
+
+public class StructureGenerateEvent extends WorldEvent implements Cancellable {
+  private static final HandlerList handlers = new HandlerList();
+
+  @NotNull
+  private final StructureType structureType;
+  private final int chunkX;
+  private final int chunkZ;
+
+  private boolean cancel = false;
+
+  public StructureGenerateEvent(@NotNull World world,
+      @NotNull StructureType structureType, int chunkX, int chunkZ) {
+    super(!Bukkit.isPrimaryThread(), world); // Structure generation is not necessarily on the main thread as of 1.16.
+    this.structureType = structureType;
+    this.chunkX = chunkX;
+    this.chunkZ = chunkZ;
+  }
+
+  @NotNull
+  @Override
+  public World getWorld() {
+    return super.getWorld();
+  }
+
+  @NotNull
+  public StructureType getStructureType() {
+    return structureType;
+  }
+
+  public int getChunkX() {
+    return chunkX;
+  }
+
+  public int getChunkZ() {
+    return chunkZ;
+  }
+
+  @Override
+  public void setCancelled(boolean cancel) {
+    this.cancel = cancel;
+  }
+
+  @Override
+  public boolean isCancelled() {
+    return this.cancel;
+  }
+
+  @NotNull
+  @Override
+  public HandlerList getHandlers() {
+    return handlers;
+  }
+
+  @NotNull
+  public static HandlerList getHandlerList() {
+    return handlers;
+  }
+}
diff --git a/src/main/java/org/bukkit/event/world/WorldEvent.java b/src/main/java/org/bukkit/event/world/WorldEvent.java
index cffeff33f007d3b03b7c862b25be453f705da739..1fa083d53dce161ef9e9f19407f230c94b2d7d15 100644
--- a/src/main/java/org/bukkit/event/world/WorldEvent.java
+++ b/src/main/java/org/bukkit/event/world/WorldEvent.java
@@ -10,6 +10,13 @@ import org.jetbrains.annotations.NotNull;
 public abstract class WorldEvent extends Event {
     private final World world;
 
+    // Purpur start
+    public WorldEvent(boolean isAsync, @NotNull final World world) {
+        super(isAsync);
+        this.world = world;
+    }
+    // Purpur end
+
     public WorldEvent(@NotNull final World world) {
         this.world = world;
     }