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path: root/patches/server/1033-Fix-missing-map-initialize-event-call.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Warrior <50800980+Warriorrrr@users.noreply.github.com>
Date: Sun, 24 Sep 2023 18:35:28 +0200
Subject: [PATCH] Fix missing map initialize event call


diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 19ffb121934e9249d18fa53cae1ae892dfd7f8d4..584a768f2ce1c98a1de7749060c47f21721f9055 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2100,7 +2100,23 @@ public class ServerLevel extends Level implements WorldGenLevel {
     @Nullable
     @Override
     public MapItemSavedData getMapData(String id) {
-        return (MapItemSavedData) this.getServer().overworld().getDataStorage().get(MapItemSavedData.factory(), id);
+        // Paper start - Call missing map initialize event & set id
+        final DimensionDataStorage storage = this.getServer().overworld().getDataStorage();
+
+        final net.minecraft.world.level.saveddata.SavedData existing = storage.cache.get(id);
+        if (existing == null && !storage.cache.containsKey(id)) {
+            final net.minecraft.world.level.saveddata.SavedData.Factory<MapItemSavedData> factory = MapItemSavedData.factory();
+            final MapItemSavedData map = storage.readSavedData(factory.deserializer(), factory.type(), id);
+            storage.cache.put(id, map);
+            if (map != null) {
+                map.id = id;
+                new MapInitializeEvent(map.mapView).callEvent();
+                return map;
+            }
+        }
+
+        return existing instanceof MapItemSavedData data ? data : null;
+        // Paper end
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java b/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java
index bd30ebc66484a6c4770cf697a2e9b0a123681b1c..f921f55e815a4da01828e025881a7a03591c3978 100644
--- a/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java
+++ b/src/main/java/net/minecraft/world/level/storage/DimensionDataStorage.java
@@ -57,7 +57,7 @@ public class DimensionDataStorage {
     }
 
     @Nullable
-    private <T extends SavedData> T readSavedData(Function<CompoundTag, T> readFunction, DataFixTypes dataFixTypes, String id) {
+    public <T extends SavedData> T readSavedData(Function<CompoundTag, T> readFunction, DataFixTypes dataFixTypes, String id) { // Paper
         try {
             File file = this.getDataFile(id);
             if (file.exists()) {