From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Sun, 25 Jun 2023 13:35:28 +0300
Subject: [PATCH] Optimize Paper Event Manager

Original project: lynxplay/ktp
Link: https://github.com/lynxplay/ktp
Modified by NONPLAYT

diff --git a/src/main/java/org/bukkit/event/Event.java b/src/main/java/org/bukkit/event/Event.java
index 8ec56cd6b8e0f5c5dd8c7c88b4671e18dcf109d0..d464812eb5e398733b8ea5b09339afa0b555f698 100644
--- a/src/main/java/org/bukkit/event/Event.java
+++ b/src/main/java/org/bukkit/event/Event.java
@@ -6,7 +6,7 @@ import org.jetbrains.annotations.NotNull;
 
 /**
  * Represents an event.
- *
+ * <p>
  * All events require a static method named getHandlerList() which returns the same {@link HandlerList} as {@link #getHandlers()}.
  *
  * @see PluginManager#callEvent(Event)
@@ -14,7 +14,7 @@ import org.jetbrains.annotations.NotNull;
  */
 public abstract class Event {
     private String name;
-    private final boolean async;
+    private final net.kyori.adventure.util.TriState async; // DivineMC - Optimize Paper Event Manager
 
     /**
      * The default constructor is defined for cleaner code. This constructor
@@ -31,10 +31,20 @@ public abstract class Event {
      * @param isAsync true indicates the event will fire asynchronously, false
      *     by default from default constructor
      */
+    // DivineMC start - Optimize Paper Event Manager
     public Event(boolean isAsync) {
+        this(net.kyori.adventure.util.TriState.byBoolean(isAsync));
+    }
+
+    public Event(@NotNull final net.kyori.adventure.util.TriState isAsync) {
         this.async = isAsync;
     }
 
+    public final @NotNull net.kyori.adventure.util.TriState asynchronous() {
+        return this.async;
+    }
+    // DivineMC end
+
     // Paper start
     /**
      * Calls the event and tests if cancelled.
@@ -70,7 +80,7 @@ public abstract class Event {
     public abstract HandlerList getHandlers();
 
     /**
-     * Any custom event that should not by synchronized with other events must
+     * Any custom event that should not be synchronized with other events must
      * use the specific constructor. These are the caveats of using an
      * asynchronous event:
      * <ul>
@@ -92,7 +102,7 @@ public abstract class Event {
      * @return false by default, true if the event fires asynchronously
      */
     public final boolean isAsynchronous() {
-        return async;
+        return this.async == net.kyori.adventure.util.TriState.TRUE; // DivineMC - Optimize Paper Event Manager
     }
 
     public enum Result {
@@ -113,6 +123,6 @@ public abstract class Event {
          * take place if possible, even if the server would not normally allow
          * the action. Some actions may not be allowed.
          */
-        ALLOW;
+        ALLOW
     }
 }
diff --git a/src/main/java/org/bukkit/plugin/RegisteredListener.java b/src/main/java/org/bukkit/plugin/RegisteredListener.java
index 3b3d9642a8d63798dc28f2f8df77f0466451cbff..9c43c51858b20ace8e32eb2d7f5a2fba6a2090e6 100644
--- a/src/main/java/org/bukkit/plugin/RegisteredListener.java
+++ b/src/main/java/org/bukkit/plugin/RegisteredListener.java
@@ -62,11 +62,13 @@ public class RegisteredListener {
      * @throws EventException If an event handler throws an exception.
      */
     public void callEvent(@NotNull final Event event) throws EventException {
-        if (event instanceof Cancellable) {
-            if (((Cancellable) event).isCancelled() && isIgnoringCancelled()) {
+        // DivineMC start - Optimize Paper Event Manager
+        if (isIgnoringCancelled()) {
+            if (event instanceof Cancellable cancellable && cancellable.isCancelled()) {
                 return;
             }
         }
+        // DivineMC end
         executor.execute(listener, event);
     }
 
diff --git a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
index 12449e18180d604e9cbbc744da74a8b222a18e1f..2ca1d23b2da34708edb2701afaf9db4df65c24b5 100644
--- a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
+++ b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
@@ -323,4 +323,11 @@ public final class PluginClassLoader extends URLClassLoader implements io.paperm
     }
 
     // Paper end
+
+    // DivineMC start - Optimize Paper Event Manager
+    @Override
+    public void addURL(final URL url) {
+        super.addURL(url);
+    }
+    // DivineMC end
 }