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e792da723a
Upstream has released updates that appears 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: 30885166 Update to Minecraft 1.16.4 CraftBukkit Changes: 3af81c71 Update to Minecraft 1.16.4 Spigot Changes: f011ca24 Update to Minecraft 1.16.4 Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com>
67 lines
4.2 KiB
Diff
67 lines
4.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <spottedleaf@spottedleaf.dev>
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Date: Sun, 17 May 2020 23:47:33 -0700
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Subject: [PATCH] Fix for large move vectors crashing server
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Check movement distance also based on current position.
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diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index bb429358c558171134ba2aa188722f69f15858c8..7abf55f5326502dfcc6af5fe853d03e0ae380c32 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -369,19 +369,24 @@ public class PlayerConnection implements PacketListenerPlayIn {
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if (entity != this.player && entity.getRidingPassenger() == this.player && entity == this.r) {
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WorldServer worldserver = this.player.getWorldServer();
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- double d0 = entity.locX();
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- double d1 = entity.locY();
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- double d2 = entity.locZ();
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- double d3 = packetplayinvehiclemove.getX();
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- double d4 = packetplayinvehiclemove.getY();
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- double d5 = packetplayinvehiclemove.getZ();
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+ double d0 = entity.locX();double fromX = d0; // Paper - OBFHELPER
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+ double d1 = entity.locY();double fromY = d1; // Paper - OBFHELPER
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+ double d2 = entity.locZ();double fromZ = d2; // Paper - OBFHELPER
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+ double d3 = packetplayinvehiclemove.getX();double toX = d3; // Paper - OBFHELPER
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+ double d4 = packetplayinvehiclemove.getY();double toY = d4; // Paper - OBFHELPER
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+ double d5 = packetplayinvehiclemove.getZ();double toZ = d5; // Paper - OBFHELPER
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float f = packetplayinvehiclemove.getYaw();
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float f1 = packetplayinvehiclemove.getPitch();
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double d6 = d3 - this.s;
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double d7 = d4 - this.t;
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double d8 = d5 - this.u;
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double d9 = entity.getMot().g();
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- double d10 = d6 * d6 + d7 * d7 + d8 * d8;
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+ // Paper start - fix large move vectors killing the server
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+ double currDeltaX = toX - fromX;
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+ double currDeltaY = toY - fromY;
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+ double currDeltaZ = toZ - fromZ;
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+ double d10 = Math.max(d6 * d6 + d7 * d7 + d8 * d8, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
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+ // Paper end - fix large move vectors killing the server
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// CraftBukkit start - handle custom speeds and skipped ticks
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@@ -1071,7 +1076,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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double d2 = this.player.locZ();
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double d3 = this.player.locY();
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double d4 = packetplayinflying.a(this.player.locX());double toX = d4; // Paper - OBFHELPER
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- double d5 = packetplayinflying.b(this.player.locY());
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+ double d5 = packetplayinflying.b(this.player.locY());double toY = d5; // Paper - OBFHELPER
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double d6 = packetplayinflying.c(this.player.locZ());double toZ = d6; // Paper - OBFHELPER
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float f = packetplayinflying.a(this.player.yaw);
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float f1 = packetplayinflying.b(this.player.pitch);
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@@ -1079,7 +1084,12 @@ public class PlayerConnection implements PacketListenerPlayIn {
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double d8 = d5 - this.m;
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double d9 = d6 - this.n;
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double d10 = this.player.getMot().g();
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- double d11 = d7 * d7 + d8 * d8 + d9 * d9;
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+ // Paper start - fix large move vectors killing the server
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+ double currDeltaX = toX - prevX;
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+ double currDeltaY = toY - prevY;
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+ double currDeltaZ = toZ - prevZ;
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+ double d11 = Math.max(d7 * d7 + d8 * d8 + d9 * d9, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
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+ // Paper end - fix large move vectors killing the server
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if (this.player.isSleeping()) {
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if (d11 > 1.0D) {
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