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1cfd363d32
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: fc460d1b PR-735: Add Villager#zombify c8c8331e PR-690: Add method to read ItemStack input 62845f2f SPIGOT-6829: Add per-player world border API CraftBukkit Changes: a459f4d4 PR-1033: Add Villager#zombify d65d1430 PR-975: Add method to read ItemStack input b5559f8c SPIGOT-6990: Fix setRepairCost(0) in Anvil 6c308e1b SPIGOT-6829: Add per-player world border API Spigot Changes: 42b61526 SPIGOT-7000: Generation and /locate issues when using custom structure seeds
88 Zeilen
4.3 KiB
Diff
88 Zeilen
4.3 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/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index a24e3ecd41cb4930ec42c7838f869d83a8d0da36..0a6617a8f428ddc52ec85209347bf35ce3651431 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -1854,14 +1854,58 @@ public class ServerPlayer extends Player {
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}
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public void setCamera(@Nullable Entity entity) {
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+ // Paper start - Add PlayerStartSpectatingEntityEvent and PlayerStopSpectatingEntity Event and improve implementation
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Entity entity1 = this.getCamera();
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- this.camera = (Entity) (entity == null ? this : entity);
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- if (entity1 != this.camera) {
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- this.connection.send(new ClientboundSetCameraPacket(this.camera));
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- this.connection.teleport(this.camera.getX(), this.camera.getY(), this.camera.getZ(), this.getYRot(), this.getXRot(), TeleportCause.SPECTATE); // CraftBukkit
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+ if (entity == null) {
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+ entity = this;
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+ }
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+
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+ if (entity1 == entity) return; // new spec target is the current spec target
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+
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+ if (entity == 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(), entity.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 (entity != this) {
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+ if (entity.isRemoved() || !entity.valid || entity.level == null) {
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+ MinecraftServer.LOGGER.info("Blocking player " + this + " from spectating invalid entity " + entity);
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+ return;
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+ }
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+ if (this.isImmobile()) {
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+ // use debug: clients might maliciously spam this
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+ MinecraftServer.LOGGER.debug("Blocking frozen player " + this + " from spectating entity " + entity);
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+ return;
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+ }
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}
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+ this.camera = entity; // only set after validating state
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+
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+ if (entity != 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(entity.getCommandSenderWorld().getWorld(), entity.getX(), entity.getY(), entity.getZ(), this.getYRot(), this.getXRot()), 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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+ ChunkMap.TrackedEntity tracker = ((ServerLevel)entity.level).getChunkSource().chunkMap.entityMap.get(entity.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.connection.teleport(this.camera.getX(), this.camera.getY(), this.camera.getZ(), this.getYRot(), this.getXRot(), TeleportCause.SPECTATE); // CraftBukkit
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+ }
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+ this.connection.send(new ClientboundSetCameraPacket(entity));
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+ // Paper end
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}
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@Override
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