928bcc8d3a
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 09943450 Update SnakeYAML version 5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc 6f82b381 PR-788: Add getHand() to all relevant events CraftBukkit Changes: aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe 5329dd6fd PR-1107: Add getHand() to all relevant events 93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
50 Zeilen
2.5 KiB
Diff
50 Zeilen
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: BillyGalbreath <blake.galbreath@gmail.com>
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Date: Tue, 8 Dec 2020 20:24:52 -0600
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Subject: [PATCH] MC-4: Fix item position desync
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This fixes item position desync (MC-4) by running the item coordinates
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through the encode/decode methods of the packet that causes the precision
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loss, which forces the server to lose the same precision as the client
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keeping them in sync.
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diff --git a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
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index 3768a71491ef7836b9739bdaec7a077c523dbacd..a57957ace1a72b3308487f180a366c3879eceb21 100644
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--- a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
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+++ b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java
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@@ -8,11 +8,11 @@ public class VecDeltaCodec {
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public Vec3 base = Vec3.ZERO; // Paper
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private static long encode(double value) {
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- return Mth.lfloor(value * 4096.0D);
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+ return Mth.lfloor(value * 4096.0D); // Paper - check ItemEntity#setPosRaw on update
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}
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private static double decode(long value) {
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- return (double)value / 4096.0D;
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+ return (double)value / 4096.0D; // Paper - check ItemEntity#setPosRaw on update
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}
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public Vec3 decode(long x, long y, long z) {
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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 0e8a5c3fbbafa90f0975733a534aace646e73fde..45931b056abab7c38bc7c6713192be4b62a7e6e4 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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@@ -3971,6 +3971,16 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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return;
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}
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// Paper end - rewrite chunk system
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+ // Paper start - fix MC-4
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+ if (this instanceof ItemEntity) {
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+ if (io.papermc.paper.configuration.GlobalConfiguration.get().misc.fixEntityPositionDesync) {
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+ // encode/decode from ClientboundMoveEntityPacket
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+ x = Mth.lfloor(x * 4096.0D) * (1 / 4096.0D);
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+ y = Mth.lfloor(y * 4096.0D) * (1 / 4096.0D);
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+ z = Mth.lfloor(z * 4096.0D) * (1 / 4096.0D);
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+ }
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+ }
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+ // Paper end - fix MC-4
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if (this.position.x != x || this.position.y != y || this.position.z != z) {
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this.position = new Vec3(x, y, z);
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int i = Mth.floor(x);
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