fix resource pack status

api/src/main/java/com/velocitypowered/api/event/player/PlayerResourcePackStatusEvent.java

@@ -134,6 +134,10 @@ public class PlayerResourcePackStatusEvent {
      * The player has accepted the resource pack and is now downloading it.
      */
     ACCEPTED,
+    /**
+     * The player has downloaded the resource pack.
+     */
+    DOWNLOADED,
     /**
      * The URL of the resource pack failed to load.
      */
@@ -145,6 +149,10 @@ public class PlayerResourcePackStatusEvent {
     /**
      * The resource pack was discarded.
      */
-    DISCARDED,
+    DISCARDED;
+
+    public boolean isIntermediate() {
+      return this == ACCEPTED || this == DOWNLOADED;
+    }
   }
 }

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

@@ -1057,7 +1057,7 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player,
    * Processes a client response to a sent resource-pack.
    */
   public boolean onResourcePackResponse(PlayerResourcePackStatusEvent.Status status) {
-    final boolean peek = status == PlayerResourcePackStatusEvent.Status.ACCEPTED;
+    final boolean peek = status.isIntermediate();
     final ResourcePackInfo queued = peek
         ? outstandingResourcePacks.peek() : outstandingResourcePacks.poll();