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PaperMC believes that 1.16.2 is now ready for general release as we fixed the main issue plagueing the 1.16.x release, the MapLike data conversion issues. Until now, it was not safe for a server to convert a world to 1.16.2 without data conversion issues around villages and potentially other things. If you did, those MapLike errors meant something went wrong. This is now resolved. Big thanks to all those that helped, notably @BillyGalbreath and @Proximyst who did large parts of the update process with me. Please as always, backup your worlds and test before updating to 1.16.2! If you update to 1.16.2, there is no going back to an older build than this. --------------------------------- Co-authored-by: William Blake Galbreath <Blake.Galbreath@GMail.com> Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com> Co-authored-by: krolik-exe <69214078+krolik-exe@users.noreply.github.com> Co-authored-by: BillyGalbreath <BillyGalbreath@users.noreply.github.com> Co-authored-by: stonar96 <minecraft.stonar96@gmail.com> Co-authored-by: Shane Freeder <theboyetronic@gmail.com> Co-authored-by: Jason <jasonpenilla2@me.com> Co-authored-by: kashike <kashike@vq.lc> Co-authored-by: Aurora <21148213+aurorasmiles@users.noreply.github.com> Co-authored-by: KennyTV <kennytv@t-online.de> Co-authored-by: commandblockguy <commandblockguy1@gmail.com> Co-authored-by: DigitalRegent <misterwener@gmail.com> Co-authored-by: ishland <ishlandmc@yeah.net>
102 lines
5.8 KiB
Diff
102 lines
5.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Caleb Bassham <caleb.bassham@gmail.com>
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Date: Fri, 28 Sep 2018 02:32:19 -0500
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Subject: [PATCH] Call player spectator target events and improve
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implementation
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Use a proper teleport for teleporting to entities in different
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worlds.
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Implementation improvements authored by Spottedleaf <Spottedleaf@users.noreply.github.com>
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Validate that the target entity is valid and deny spectate
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requests from frozen players.
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Also, make sure the entity is spawned to the client before
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sending the camera packet. If the entity isn't spawned clientside
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when it receives the camera packet, then the client will not
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spectate the target entity.
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Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
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diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
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index 32aba006312ef30401e09cf05325dd1fa82bfed0..da4f0ef74898eb327449f0dccb34afb63235b3b1 100644
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--- a/src/main/java/net/minecraft/server/EntityPlayer.java
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+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
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@@ -1659,15 +1659,59 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
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return (Entity) (this.spectatedEntity == null ? this : this.spectatedEntity);
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}
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- public void setSpectatorTarget(Entity entity) {
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+ public void setSpectatorTarget(Entity newSpectatorTarget) {
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+ // Paper start - Add PlayerStartSpectatingEntityEvent and PlayerStopSpectatingEntity Event and improve implementation
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Entity entity1 = this.getSpecatorTarget();
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- this.spectatedEntity = (Entity) (entity == null ? this : entity);
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- if (entity1 != this.spectatedEntity) {
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- this.playerConnection.sendPacket(new PacketPlayOutCamera(this.spectatedEntity));
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- this.playerConnection.a(this.spectatedEntity.locX(), this.spectatedEntity.locY(), this.spectatedEntity.locZ(), this.yaw, this.pitch, TeleportCause.SPECTATE); // CraftBukkit
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+ if (newSpectatorTarget == null) {
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+ newSpectatorTarget = this;
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}
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+ if (entity1 == newSpectatorTarget) return; // new spec target is the current spec target
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+
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+ if (newSpectatorTarget == this) {
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+ com.destroystokyo.paper.event.player.PlayerStopSpectatingEntityEvent playerStopSpectatingEntityEvent = new com.destroystokyo.paper.event.player.PlayerStopSpectatingEntityEvent(this.getBukkitEntity(), entity1.getBukkitEntity());
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+
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+ if (!playerStopSpectatingEntityEvent.callEvent()) {
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+ return;
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+ }
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+ } else {
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+ com.destroystokyo.paper.event.player.PlayerStartSpectatingEntityEvent playerStartSpectatingEntityEvent = new com.destroystokyo.paper.event.player.PlayerStartSpectatingEntityEvent(this.getBukkitEntity(), entity1.getBukkitEntity(), newSpectatorTarget.getBukkitEntity());
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+
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+ if (!playerStartSpectatingEntityEvent.callEvent()) {
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+ return;
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+ }
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+ }
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+ // Validate
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+ if (newSpectatorTarget != this) {
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+ if (newSpectatorTarget.dead || newSpectatorTarget.shouldBeRemoved || !newSpectatorTarget.valid || newSpectatorTarget.world == null) {
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+ MinecraftServer.LOGGER.info("Blocking player " + this.toString() + " from spectating invalid entity " + newSpectatorTarget.toString());
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+ return;
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+ }
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+ if (this.isFrozen()) {
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+ // use debug: clients might maliciously spam this
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+ MinecraftServer.LOGGER.debug("Blocking frozen player " + this.toString() + " from spectating entity " + newSpectatorTarget.toString());
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+ return;
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+ }
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+ }
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+
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+ this.spectatedEntity = newSpectatorTarget; // only set after validating state
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+
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+ if (newSpectatorTarget != this) {
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+ // Make sure we're in the right place
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+ this.ejectPassengers(); // teleport can fail if we have passengers...
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+ this.getBukkitEntity().teleport(new Location(newSpectatorTarget.getWorld().getWorld(), newSpectatorTarget.locX(), newSpectatorTarget.locY(), newSpectatorTarget.locZ(), this.yaw, this.pitch), TeleportCause.SPECTATE); // Correctly handle cross-world entities from api calls by using CB teleport
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+
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+ // Make sure we're tracking the entity before sending
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+ PlayerChunkMap.EntityTracker tracker = ((WorldServer)newSpectatorTarget.world).getChunkProvider().playerChunkMap.trackedEntities.get(newSpectatorTarget.getId());
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+ if (tracker != null) { // dumb plugins...
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+ tracker.updatePlayer(this);
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+ }
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+ } else {
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+ this.playerConnection.teleport(this.spectatedEntity.locX(), this.spectatedEntity.locY(), this.spectatedEntity.locZ(), this.yaw, this.pitch, TeleportCause.SPECTATE); // CraftBukkit
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+ }
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+ this.playerConnection.sendPacket(new PacketPlayOutCamera(newSpectatorTarget));
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+ // Paper end
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}
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@Override
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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 b02d1abd65ca113de622328f520bd4c8b56e3409..58f6588f475e000aafede740adf4570d41a71009 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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@@ -1127,6 +1127,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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}
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// CraftBukkit start - Delegate to teleport(Location)
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+ public final void teleport(double d0, double d1, double d2, float f, float f1, PlayerTeleportEvent.TeleportCause cause) { this.a(d0, d1, d2, f, f1, cause); } // Paper - OBFHELPER
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public void a(double d0, double d1, double d2, float f, float f1, PlayerTeleportEvent.TeleportCause cause) {
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this.a(d0, d1, d2, f, f1, Collections.<PacketPlayOutPosition.EnumPlayerTeleportFlags>emptySet(), cause);
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}
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