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c5a10665b8
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.
23 lines
1.2 KiB
Diff
23 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: MelnCat <melncatuwu@gmail.com>
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Date: Sun, 16 Oct 2022 12:10:17 -0700
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Subject: [PATCH] Add entity knockback API
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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index ae3bf4adc93ebd5a3d19536ac0e0889599aa4e6b..2b53f1daa4f22ee1b52443ae8589c62807d22903 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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@@ -1103,4 +1103,12 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
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throw new UnsupportedOperationException("Cannot set the hurt direction on a non player");
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}
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// Paper end - hurt direction API
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+
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+ // Paper start - knockback API
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+ @Override
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+ public void knockback(final double strength, final double directionX, final double directionZ) {
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+ Preconditions.checkArgument(strength > 0, "Knockback strength must be > 0");
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+ this.getHandle().knockback(strength, directionX, directionZ);
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+ };
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+ // Paper end - knockback API
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}
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