PaperMC/patches/server/0430-Ensure-Entity-AABB-s-are-never-invalid.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 10 May 2020 22:12:46 -0400
Subject: [PATCH] Ensure Entity AABB's are never invalid
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 6a86125c6f6daa0a443601db4fea19531225ad33..9fcd1808ea0dbfd6b5f0d09700d4aa4b1a21eed3 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
Rewrite chunk system (#8177) Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 10:02:51 +02:00
@@ -713,8 +713,8 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
public void setPos(double x, double y, double z) {
- this.setPosRaw(x, y, z);
- this.setBoundingBox(this.makeBoundingBox());
+ this.setPosRaw(x, y, z, true); // Paper - force bounding box update
+ // this.setBoundingBox(this.makeBoundingBox()); // Paper - move into setPositionRaw
}
protected AABB makeBoundingBox() {
@@ -3945,6 +3945,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
public final void setPosRaw(double x, double y, double z) {
+ // Paper start
+ this.setPosRaw(x, y, z, false);
+ }
+ public final void setPosRaw(double x, double y, double z, boolean forceBoundingBoxUpdate) {
+ // Paper end
Rewrite chunk system (#8177) Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 10:02:51 +02:00
// Paper start - rewrite chunk system
if (this.updatingSectionStatus) {
LOGGER.error("Refusing to update position for entity " + this + " to position " + new Vec3(x, y, z) + " since it is processing a section status update", new Throwable());
@@ -3968,6 +3973,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
2022-06-08 07:02:19 +02:00
this.levelCallback.onMove();
}
+ // Paper start - never allow AABB to become desynced from position
+ // hanging has its own special logic
+ if (!(this instanceof net.minecraft.world.entity.decoration.HangingEntity) && (forceBoundingBoxUpdate || this.position.x != x || this.position.y != y || this.position.z != z)) {
+ this.setBoundingBox(this.makeBoundingBox());
+ }
+ // Paper end
}
public void checkDespawn() {}