fix(generic): apply resource pack during configuration phase

The pack was pushed after spawn, forcing a mid-game resource reload
while world data streamed in. Chunk sections received during that
reload are never rendered by the client even after a manual chunk
rebuild, which made generated dungeon instances appear invisible. The
push now happens in the configuration phase and blocks until the
client reports a terminal pack status, matching how Hypixel applies
theirs before any world data is sent.

Author: Swofty-Developments

type.generic/src/main/java/net/swofty/type/generic/event/actions/data/ActionPlayerDataLoad.java

@@ -17,5 +17,11 @@ public class ActionPlayerDataLoad implements HypixelEventClass {
     public void run(AsyncPlayerConfigurationEvent event) {
         HypixelPlayer player = (HypixelPlayer) event.getPlayer();
         PlayerFlow.run(player, "generic-data/load", () -> GenericPlayerDataFlow.load(player));
+
+        var packManager = net.swofty.type.generic.HypixelConst.getResourcePackManager();
+        if (packManager != null) {
+            PlayerFlow.run(player, "generic-data/resource-pack",
+                    () -> packManager.sendPackBlocking(player, 25));
+        }
     }
 }

type.generic/src/main/java/net/swofty/type/generic/resourcepack/ResourcePackManager.java

@@ -27,6 +27,16 @@ public void initialize() {
     }
 
     public void sendPack(Player player) {
+        sendPackBlocking(player, 0);
+    }
+
+    /**
+     * Pushes the pack and, when {@code timeoutSeconds > 0}, waits for the client's
+     * terminal pack status. The pack must finish applying during the configuration
+     * phase, before any world data streams: a mid-game resource reload leaves
+     * already-received chunk sections permanently unrendered on the client.
+     */
+    public void sendPackBlocking(Player player, int timeoutSeconds) {
         String packUrl = activePack.getPackUrl();
         String packHash = activePack.getPackHash();
 
@@ -41,13 +51,27 @@ public void sendPack(Player player) {
                 packHash
         );
 
+        java.util.concurrent.CompletableFuture<Void> resolved = new java.util.concurrent.CompletableFuture<>();
         ResourcePackRequest request = ResourcePackRequest.resourcePackRequest()
                 .packs(info)
                 .replace(true)
                 .required(activePack.isRequired())
                 .prompt(Component.text("§aThis resource pack is required to play on Hypixel."))
+                .callback((packId, status, audience) -> {
+                    if (status.intermediate()) return;
+                    resolved.complete(null);
+                })
                 .build();
 
         player.sendResourcePacks(request);
+
+        if (timeoutSeconds > 0) {
+            try {
+                resolved.get(timeoutSeconds, java.util.concurrent.TimeUnit.SECONDS);
+            } catch (Exception exception) {
+                Logger.warn("Resource pack for {} did not resolve within {}s, continuing",
+                        player.getUsername(), timeoutSeconds);
+            }
+        }
     }
 }

type.generic/src/main/java/net/swofty/type/generic/user/flow/GenericPlayerDataFlow.java

@@ -70,7 +70,6 @@ public static void postSpawn(HypixelPlayer player) {
 
         ResourcePackManager packManager = HypixelConst.getResourcePackManager();
         if (packManager != null) {
-            packManager.sendPack(player);
             packManager.getActivePack().onPlayerJoin(player);
         }