Paper/patches/server/0577-Change-EnderEye-target-without-changing-other-things.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

55 lines
2.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 21 Aug 2021 12:13:53 -0700
Subject: [PATCH] Change EnderEye target without changing other things
diff --git a/src/main/java/net/minecraft/world/entity/projectile/EyeOfEnder.java b/src/main/java/net/minecraft/world/entity/projectile/EyeOfEnder.java
index 8b0ccd1aa0f2f1d2326c6071f16e641afc101751..fca3786d0a3f99a3e61e7a4b2251361276eff9d7 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/EyeOfEnder.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/EyeOfEnder.java
@@ -69,6 +69,11 @@ public class EyeOfEnder extends Entity implements ItemSupplier {
}
public void signalTo(BlockPos pos) {
+ // Paper start - Change EnderEye target without changing other things
+ this.signalTo(pos, true);
+ }
+ public void signalTo(BlockPos pos, boolean update) {
+ // Paper end - Change EnderEye target without changing other things
double d0 = (double) pos.getX();
int i = pos.getY();
double d1 = (double) pos.getZ();
@@ -86,8 +91,10 @@ public class EyeOfEnder extends Entity implements ItemSupplier {
this.tz = d1;
}
+ if (update) { // Paper - Change EnderEye target without changing other things
this.life = 0;
this.surviveAfterDeath = this.random.nextInt(5) > 0;
+ } // Paper - Change EnderEye target without changing other things
}
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEnderSignal.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEnderSignal.java
index d4dfc7a0266086b9bf2c3966c6e149453d0583ba..27f56fa4b7ef92a9a4dfa6b782350424b88210f2 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEnderSignal.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEnderSignal.java
@@ -32,8 +32,15 @@ public class CraftEnderSignal extends CraftEntity implements EnderSignal {
@Override
public void setTargetLocation(Location location) {
+ // Paper start - Change EnderEye target without changing other things
+ this.setTargetLocation(location, true);
+ }
+
+ @Override
+ public void setTargetLocation(Location location, boolean update) {
+ // Paper end - Change EnderEye target without changing other things
Preconditions.checkArgument(this.getWorld().equals(location.getWorld()), "Cannot target EnderSignal across worlds");
- this.getHandle().signalTo(CraftLocation.toBlockPosition(location));
+ this.getHandle().signalTo(CraftLocation.toBlockPosition(location), update); // Paper - Change EnderEye target without changing other things
}
@Override