Paper/Spigot-Server-Patches/0513-Ensure-Entity-AABB-s-are-never-invalid.patch
Aikar fa9c5e0f95
(FINAL 1.16.2) Improve Entity Activation Range passenger behavior
Previously, Entity Activation Range only applied to the root entity of a vehicle chain.
If that vehicle is active, every entity as it's passenger would then tick.

This creates scenarios where EAR does not apply your desired ranges to passengers.
Additionally, any entity that was a passenger never had its inactiveTick method called
when the parent was inactive, creating behavioral desyncs.

This could of been a source of many villager issues when those villagers were in minecarts
as players commonly do.

Now we will process passengers checking their activation state independently of their vehicle
and if they are inactive, call their inactiveTick() method to ensure state remains consistent.

This also helps improve any desync issues with entity position of passengers too.

This also removes immunity for passenger/vehicles, so it should improve performance
of these minecart villagers too for EAR.
2020-09-10 19:08:02 -04:00

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2.0 KiB
Diff

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/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index e36cb29de4ddc0d82e4b964042fed91cee0ad750..8f72b54d44fc92a8de801e7d83ad8734f08df5d4 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -388,7 +388,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
public void setPosition(double d0, double d1, double d2) {
this.setPositionRaw(d0, d1, d2);
- this.a(this.size.a(d0, d1, d2));
+ //this.a(this.size.a(d0, d1, d2)); // Paper - move into setPositionRaw
if (valid) ((WorldServer) world).chunkCheck(this); // CraftBukkit
}
@@ -2883,6 +2883,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
return new AxisAlignedBB(vec3d, vec3d1);
}
+ public final void setBoundingBox(AxisAlignedBB axisalignedbb) { a(axisalignedbb); } // Paper - OBFHELPER
public void a(AxisAlignedBB axisalignedbb) {
// CraftBukkit start - block invalid bounding boxes
double minX = axisalignedbb.minX,
@@ -3321,6 +3322,12 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
public void setPositionRaw(double d0, double d1, double d2) {
+ // Paper start - never allow AABB to become desynced from position
+ // hanging has its own special logic
+ if (!(this instanceof EntityHanging) && (this.loc.x != d0 || this.loc.y != d1 || this.loc.z != d2)) {
+ this.setBoundingBox(this.size.a(d0, d1, d2));
+ }
+ // Paper end
if (this.loc.x != d0 || this.loc.y != d1 || this.loc.z != d2) {
this.loc = new Vec3D(d0, d1, d2);
int i = MathHelper.floor(d0);