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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.
22 lines
1.4 KiB
Diff
22 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: chickeneer <emcchickeneer@gmail.com>
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Date: Fri, 19 Mar 2021 00:33:15 -0500
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Subject: [PATCH] Fix PlayerItemConsumeEvent cancelling properly
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When the active item is not cleared, the item is still readied
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for use and will repeatedly trigger the PlayerItemConsumeEvent
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till their item is switched.
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This patch clears the active item when the event is cancelled
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index a89c6ba4140f15e7f68f0df5cf64a176d350123b..afa2d3f5199fcac5c83639bb87e31425da4c5310 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -4011,6 +4011,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
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this.level().getCraftServer().getPluginManager().callEvent(event);
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if (event.isCancelled()) {
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+ this.stopUsingItem(); // Paper - event is using an item, clear active item to reset its use
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// Update client
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if (this.useItem.getItem() instanceof net.minecraft.world.item.SuspiciousStewItem itemSuspiciousStew) {
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itemSuspiciousStew.cancelUsingItem(entityPlayer, this.useItem);
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