add PreHangingEntityBreakEvent

Author: Blast-MC

parchment-api/paper-patches/files/src/main/java/org/bukkit/event/hanging/HangingBreakEvent.java.patch

@@ -0,0 +1,13 @@
+--- a/src/main/java/org/bukkit/event/hanging/HangingBreakEvent.java
++++ b/src/main/java/org/bukkit/event/hanging/HangingBreakEvent.java
+@@ -20,6 +_,10 @@
+     public HangingBreakEvent(@NotNull final Hanging hanging, @NotNull final HangingBreakEvent.RemoveCause cause) {
+         super(hanging);
+         this.cause = cause;
++
++        if (!new gg.projecteden.parchment.event.entity.PreHangingEntityBreakEvent().callEvent()) {
++            this.cancelled = true;
++        }
+     }
+ 
+     /**

parchment-api/src/main/java/gg/projecteden/parchment/event/entity/PreHangingEntityBreakEvent.java

@@ -0,0 +1,34 @@
+package gg.projecteden.parchment.event.entity;
+
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
+
+public class PreHangingEntityBreakEvent extends Event implements Cancellable {
+
+    private static final HandlerList handlers = new HandlerList();
+
+    private boolean cancelled = true; // default to true, nexus will set to false
+
+    @Override
+    public boolean isCancelled() {
+        return this.cancelled;
+    }
+
+    @Override
+    public void setCancelled(boolean cancel) {
+        this.cancelled = true;
+    }
+
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return handlers;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+
+}