From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 6 Oct 2018 21:14:29 -0400
Subject: [PATCH] Material API additions


diff --git a/src/main/java/org/bukkit/Material.java b/src/main/java/org/bukkit/Material.java
index f66cd342c2ec3e5d4f4ae5e68dda797c793c76a7..e203c5bfc1d1bf6b500ef8a4446d3aef182b8ecb 100644
--- a/src/main/java/org/bukkit/Material.java
+++ b/src/main/java/org/bukkit/Material.java
@@ -86,6 +86,7 @@ import org.jetbrains.annotations.Nullable;
 /**
  * An enum of all material IDs accepted by the official server and client
  */
+@SuppressWarnings({"DeprecatedIsStillUsed", "deprecation"}) // Paper
 public enum Material implements Keyed {
     //<editor-fold desc="Materials" defaultstate="collapsed">
     AIR(9648, 0),
@@ -3565,6 +3566,22 @@ public enum Material implements Keyed {
         }
     }
 
+    // Paper start
+
+    /**
+     * @return If the type is either AIR, CAVE_AIR or VOID_AIR
+     */
+    public boolean isEmpty() {
+        switch (this) {
+            case AIR:
+            case CAVE_AIR:
+            case VOID_AIR:
+                return true;
+        }
+        return false;
+    }
+    // Paper end
+
     /**
      * Do not use for any reason.
      *
