diff --git a/patches/server/0866-Fix-Entity-Position-Desync.patch b/patches/server/0866-Fix-Entity-Position-Desync.patch new file mode 100644 index 0000000000..c877249ade --- /dev/null +++ b/patches/server/0866-Fix-Entity-Position-Desync.patch @@ -0,0 +1,31 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com> +Date: Thu, 23 Dec 2021 23:59:12 -0500 +Subject: [PATCH] Fix Entity Position Desync + +If entities were teleported in the first tick it would not be send to the client. + +This also fixes desync caused be relatively teleporting paintings. +This is caused by the fact that setPacketCoordinates isn't called on paintings when they are spawned (unlike every other entity, like XP orbs) +on the client for some reason. This causes it to be relatively teleported to the world origin (0,0,0). + +diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java +index 9a6c67b614944f841813ec2892381c3342bc365c..b0a79e335ac9dc24fc6f18010bf40716ecc724bf 100644 +--- a/src/main/java/net/minecraft/server/level/ServerEntity.java ++++ b/src/main/java/net/minecraft/server/level/ServerEntity.java +@@ -164,13 +164,14 @@ public class ServerEntity { + } + // CraftBukkit end + +- if (this.tickCount > 0 || this.entity instanceof AbstractArrow) { ++ if (true || this.tickCount > 0 || this.entity instanceof AbstractArrow) { // Paper - Always update position + // Paper start - remove allocation of Vec3D here + long k = ClientboundMoveEntityPacket.entityToPacket(vec3d_dx); + long l = ClientboundMoveEntityPacket.entityToPacket(vec3d_dy); + long i1 = ClientboundMoveEntityPacket.entityToPacket(vec3d_dz); + // Paper end - remove allocation of Vec3D here + boolean flag4 = k < -32768L || k > 32767L || l < -32768L || l > 32767L || i1 < -32768L || i1 > 32767L; ++ if (this.entity instanceof net.minecraft.world.entity.decoration.Painting) {flag4 = true;} // Paper - Always send exact position for paintings + + if (!flag4 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.isOnGround() && !(com.destroystokyo.paper.PaperConfig.sendFullPosForHardCollidingEntities && this.entity.hardCollides())) { // Paper - send full pos for hard colliding entities to prevent collision problems due to desync + if ((!flag2 || !flag3) && !(this.entity instanceof AbstractArrow)) {