26734e83b0
* Updated Upstream (Bukkit/CraftBukkit/Spigot) 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: 8085edde SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls 04c7e13c PR-719: Add Player Profile API 71564210 SPIGOT-6910: Add BlockDamageAbortEvent CraftBukkit Changes: febaa1c6 SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls 9dafd109 Don't send updates over large distances bdac46b0 SPIGOT-6782: EntityPortalEvent should not destroy entity when setTo() uses same world as getFrom() 8f361ece PR-1002: Add Player Profile API 911875d4 Increase outdated build delay e5f8a767 SPIGOT-6917: Use main scoreboard for /trigger a672a531 Clean up callBlockDamageEvent 8e1bdeef SPIGOT-6910: Add BlockDamageAbortEvent Spigot Changes: 6edb62f3 Rebuild patches 7fbc6a1e Rebuild patches * Updated Upstream (CraftBukkit) 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 CraftBukkit Changes: de951355 SPIGOT-6927: Fix default value of spawn-limits in Worlds
66 Zeilen
3.6 KiB
Diff
66 Zeilen
3.6 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/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index d5ae781d65016e0382cb3497cb8cac201680bc8c..266e52e1bf4d03ce7ad9dd329a18577b887cc767 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -101,6 +101,11 @@ public class PaperConfig {
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trackPluginScoreboards = getBoolean("settings.track-plugin-scoreboards", false);
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}
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+ public static boolean fixEntityPositionDesync = true;
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+ private static void fixEntityPositionDesync() {
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+ fixEntityPositionDesync = getBoolean("settings.fix-entity-position-desync", fixEntityPositionDesync);
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+ }
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+
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public static void registerCommands() {
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for (Map.Entry<String, Command> entry : commands.entrySet()) {
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MinecraftServer.getServer().server.getCommandMap().register(entry.getKey(), "Paper", entry.getValue());
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diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundMoveEntityPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundMoveEntityPacket.java
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index b30c08bfb8c55161543a4ef09f2e462e0a1fe4ae..ec93f5300cc7d423ec0d292f0f8443f900d72dab 100644
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--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundMoveEntityPacket.java
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+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundMoveEntityPacket.java
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@@ -21,11 +21,11 @@ public abstract class ClientboundMoveEntityPacket implements Packet<ClientGamePa
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protected final boolean hasPos;
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public static long entityToPacket(double coord) {
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- return Mth.lfloor(coord * 4096.0D);
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+ return Mth.lfloor(coord * 4096.0D); // Paper - check ItemEntity#setPosRaw on update
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}
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public static double packetToEntity(long coord) {
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- return (double)coord / 4096.0D;
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+ return (double)coord / 4096.0D; // Paper - check ItemEntity#setPosRaw on update
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}
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public Vec3 updateEntityPosition(Vec3 orig) {
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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 925f9b57e347bb609c159bb9d750a528ad2b87dd..6b1ea58389e32d6144e930adc72efeb4ba570d89 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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@@ -3811,6 +3811,16 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
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}
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public final void setPosRaw(double x, double y, double z, boolean forceBoundingBoxUpdate) {
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// Paper end
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+ // Paper start - fix MC-4
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+ if (this instanceof ItemEntity) {
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+ if (com.destroystokyo.paper.PaperConfig.fixEntityPositionDesync) {
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+ // encode/decode from PacketPlayOutEntity
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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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