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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.
20 Zeilen
1.0 KiB
Diff
20 Zeilen
1.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: sulu5890 <sulu@sulu.me>
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Date: Sun, 24 Oct 2021 22:48:14 -0500
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Subject: [PATCH] don't attempt to teleport dead entities
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index e34260c80d19869c9bec5ba67f7ce7db9d13a1f1..35c0591f9d981f1cf7da4d1dea108a8bb3e46c7a 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -705,7 +705,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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// CraftBukkit start
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public void postTick() {
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// No clean way to break out of ticking once the entity has been copied to a new world, so instead we move the portalling later in the tick cycle
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- if (!(this instanceof ServerPlayer)) {
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+ if (!(this instanceof ServerPlayer) && this.isAlive()) { // Paper - don't attempt to teleport dead entities
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this.handlePortal();
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}
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}
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