Move diffs around to compile without later ones applied

2024-01-23 18:01:39 +01:00 · 2024-01-23 18:01:39 +01:00 · c57d1aa245
commit c57d1aa245
parent e66037960b
772 changed files with 546 additions and 499 deletions
--- a/patches/server/0311-Duplicate-UUID-Resolve-Option.patch
+++ b/patches/server/0311-Duplicate-UUID-Resolve-Option.patch
@ -0,0 +1,92 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 21 Jul 2018 14:27:34 -0400
+Subject: [PATCH] Duplicate UUID Resolve Option
+
+Due to a bug in https://github.com/PaperMC/Paper/commit/2e29af3df05ec0a383f48be549d1c03200756d24
+which was added all the way back in March of 2016, it was unknown (potentially not at the time)
+that an entity might actually change the seed of the random object.
+
+At some point, EntitySquid did start setting the seed. Due to this shared random, this caused
+every entity to use a Random object with a predictable seed.
+
+This has caused entities to potentially generate with the same UUID....
+
+Over the years, servers have had entities disappear, but no sign of trouble
+because CraftBukkit removed the log lines indicating that something was wrong.
+
+We have fixed the root issue causing duplicate UUID's, however we now have chunk
+files full of entities that have the same UUID as another entity!
+
+When these chunks load, the 2nd entity will not be added to the world correctly.
+
+If that chunk loads in a different order in the future, then it will reverse and the
+missing one is now the one added to the world and not the other. This results in very
+inconsistent entity behavior.
+
+This change allows you to recover any duplicate entity by generating a new UUID for it.
+This also lets you delete them instead if you don't want to risk having new entities added to
+the world that you previously did not see.
+
+But for those who are ok with leaving this inconsistent behavior, you may use WARN or NOTHING options.
+
+It is recommended you regenerate the entities, as these were legit entities, and deserve your love.
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 304e3c177488773d488e5b82f65a7c16a3750a29..1ce59bd654cf4cb68d510b0f6a8d1a72d2761bf7 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -537,6 +537,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+                     entity.discard();
+                     needsRemoval = true;
+                 }
+                checkDupeUUID(world, entity); // Paper - duplicate uuid resolving
+                 return !needsRemoval;
+             }), position); // Paper - rewrite chunk system
+             // CraftBukkit end
+@@ -548,6 +549,45 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         throw new UnsupportedOperationException(); // Paper - rewrite chunk system
+     }
+ 
+    // Paper start - duplicate uuid resolving
+    // rets true if to prevent the entity from being added
+    public static boolean checkDupeUUID(ServerLevel level, Entity entity) {
+        io.papermc.paper.configuration.WorldConfiguration.Entities.Spawning.DuplicateUUID.DuplicateUUIDMode mode = level.paperConfig().entities.spawning.duplicateUuid.mode;
+        if (mode != io.papermc.paper.configuration.WorldConfiguration.Entities.Spawning.DuplicateUUID.DuplicateUUIDMode.WARN
+            && mode != io.papermc.paper.configuration.WorldConfiguration.Entities.Spawning.DuplicateUUID.DuplicateUUIDMode.DELETE
+            && mode != io.papermc.paper.configuration.WorldConfiguration.Entities.Spawning.DuplicateUUID.DuplicateUUIDMode.SAFE_REGEN) {
+            return false;
+        }
+        Entity other = level.getEntity(entity.getUUID());
+
+        if (other == null || other == entity) {
+            return false;
+        }
+
+        if (mode == io.papermc.paper.configuration.WorldConfiguration.Entities.Spawning.DuplicateUUID.DuplicateUUIDMode.SAFE_REGEN && other != null && !other.isRemoved()
+            && Objects.equals(other.getEncodeId(), entity.getEncodeId())
+            && entity.getBukkitEntity().getLocation().distance(other.getBukkitEntity().getLocation()) < level.paperConfig().entities.spawning.duplicateUuid.safeRegenDeleteRange
+        ) {
+            entity.discard();
+            return true;
+        }
+        if (!other.isRemoved()) {
+            switch (mode) {
+                case SAFE_REGEN: {
+                    entity.setUUID(java.util.UUID.randomUUID());
+                    break;
+                }
+                case DELETE: {
+                    entity.discard();
+                    return true;
+                }
+                default:
+                    break;
+            }
+        }
+        return false;
+    }
+    // Paper end - duplicate uuid resolving
+     public CompletableFuture<Either<LevelChunk, ChunkHolder.ChunkLoadingFailure>> prepareTickingChunk(ChunkHolder holder) {
+         throw new UnsupportedOperationException(); // Paper - rewrite chunk system
+     }