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https://github.com/PaperMC/Paper.git
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72 lines
4.3 KiB
Diff
72 lines
4.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 25 Aug 2020 20:45:36 -0400
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Subject: [PATCH] Fix Entity Teleportation and cancel velocity if teleported
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Uses correct setPositionRotation for Entity teleporting instead of setLocation
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as this is how Vanilla teleports entities.
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Cancel any pending motion when teleported.
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diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
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index 5c52a2988b8830e4e5597f8a5b3718d242023cb7..a7b225249f7ffafa2c6e1fc60657067229e02960 100644
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--- a/src/main/java/net/minecraft/server/Entity.java
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+++ b/src/main/java/net/minecraft/server/Entity.java
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@@ -54,6 +54,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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// CraftBukkit start
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private static final int CURRENT_LEVEL = 2;
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+ boolean preserveMotion = true; // Paper - keep initial motion on first setPositionRotation
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static boolean isLevelAtLeast(NBTTagCompound tag, int level) {
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return tag.hasKey("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
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}
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@@ -1317,6 +1318,13 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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}
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public void setPositionRotation(double d0, double d1, double d2, float f, float f1) {
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+ // Paper - cancel entity velocity if teleported
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+ if (!preserveMotion) {
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+ this.mot = Vec3D.ORIGIN;
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+ } else {
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+ this.preserveMotion = false;
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+ }
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+ // Paper end
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this.g(d0, d1, d2);
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this.yaw = f;
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this.pitch = f1;
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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 5b7457d9186b9ea66b986603e5e2c629c9e245cb..9f836c5f6b9cbe83f537ebd25b54d7fd42693bd5 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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@@ -546,7 +546,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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public void a(PacketPlayInTeleportAccept packetplayinteleportaccept) {
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PlayerConnectionUtils.ensureMainThread(packetplayinteleportaccept, this, this.player.getWorldServer());
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if (packetplayinteleportaccept.b() == this.teleportAwait && this.teleportPos != null) { // CraftBukkit
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- this.player.setLocation(this.teleportPos.x, this.teleportPos.y, this.teleportPos.z, this.player.yaw, this.player.pitch);
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+ this.player.setPositionRotation(this.teleportPos.x, this.teleportPos.y, this.teleportPos.z, this.player.yaw, this.player.pitch); // Paper - use proper setPositionRotation for teleportation
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this.o = this.teleportPos.x;
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this.p = this.teleportPos.y;
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this.q = this.teleportPos.z;
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@@ -1390,7 +1390,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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// CraftBukkit end
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this.A = this.e;
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- this.player.setLocation(d0, d1, d2, f, f1);
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+ this.player.setPositionRotation(d0, d1, d2, f, f1); // Paper - use proper setPositionRotation for teleportation
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this.player.forceCheckHighPriority(); // Paper
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this.player.playerConnection.sendPacket(new PacketPlayOutPosition(d0 - d3, d1 - d4, d2 - d5, f - f2, f1 - f3, set, this.teleportAwait));
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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index dc42bd1b2b89881789481d736a57011936857abf..c519b46c94792082c62acc05cdbec0734776edf5 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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@@ -555,7 +555,7 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
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}
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// entity.setLocation() throws no event, and so cannot be cancelled
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- entity.setLocation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
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+ entity.setPositionRotation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch()); // Paper - use proper setPosition, as per vanilla teleporting
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// SPIGOT-619: Force sync head rotation also
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entity.setHeadRotation(location.getYaw());
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((net.minecraft.server.WorldServer) entity.world).chunkCheck(entity); // Spigot - register to new chunk
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