i really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really love jmp

patches/server/Add-PlayerConnectionCloseEvent.patch

@@ -38,7 +38,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/network/Connection.java
 +++ b/src/main/java/net/minecraft/network/Connection.java
 @@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
-                     this.getPacketListener().onDisconnect(new TranslatableComponent("multiplayer.disconnect.generic"));
+                     this.getPacketListener().onDisconnect(Component.translatable("multiplayer.disconnect.generic"));
                  }
                  this.queue.clear(); // Free up packet queue.
 +                // Paper start - Add PlayerConnectionCloseEvent

patches/server/Async-command-map-building.patch

@@ -8,9 +8,9 @@ diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/commands/Commands.java
 +++ b/src/main/java/net/minecraft/commands/Commands.java
-@@ -0,0 +0,0 @@ import net.minecraft.network.chat.MutableComponent;
- import net.minecraft.network.chat.TextComponent;
- import net.minecraft.network.chat.TranslatableComponent;
+@@ -0,0 +0,0 @@ import net.minecraft.network.chat.ComponentUtils;
+ import net.minecraft.network.chat.HoverEvent;
+ import net.minecraft.network.chat.MutableComponent;
  import net.minecraft.network.protocol.game.ClientboundCommandsPacket;
 +import net.minecraft.server.MinecraftServer;
  import net.minecraft.server.commands.AdvancementCommands;

patches/server/Don-t-allow-digging-into-unloaded-chunks.patch

@@ -35,25 +35,25 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
                  this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1);
                  this.lastSentState = -1;
 @@ -0,0 +0,0 @@ public class ServerPlayerGameMode {
-         double d3 = d0 * d0 + d1 * d1 + d2 * d2;
  
-         if (d3 > 36.0D) {
+     public void handleBlockBreakAction(BlockPos pos, ServerboundPlayerActionPacket.Action action, Direction direction, int worldHeight, int sequence) {
+         if (this.player.getEyePosition().distanceToSqr(Vec3.atCenterOf(pos)) > ServerGamePacketListenerImpl.MAX_INTERACTION_DISTANCE) {
 +            if (true) return; // Paper - Don't notify if unreasonably far away
-             BlockState iblockdata;
- 
-             if (this.player.level.getServer() != null && this.player.chunkPosition().getChessboardDistance(new ChunkPos(pos)) < this.player.level.getServer().getPlayerList().getViewDistance()) {
+             this.debugLogging(pos, false, sequence, "too far");
+         } else if (pos.getY() >= worldHeight) {
+             this.player.connection.send(new ClientboundBlockUpdatePacket(pos, this.level.getBlockState(pos)));
 @@ -0,0 +0,0 @@ public class ServerPlayerGameMode {
-                 this.player.connection.send(new ClientboundBlockBreakAckPacket(pos, this.level.getBlockState(pos), action, true, "stopped destroying"));
+                 this.debugLogging(pos, true, sequence, "stopped destroying");
              } else if (action == ServerboundPlayerActionPacket.Action.ABORT_DESTROY_BLOCK) {
                  this.isDestroyingBlock = false;
 -                if (!Objects.equals(this.destroyPos, pos)) {
-+                if (!Objects.equals(this.destroyPos, pos) && !BlockPos.ZERO.equals(this.destroyPos)) {
++                if (!Objects.equals(this.destroyPos, pos) && !BlockPos.ZERO.equals(this.destroyPos)) { // Paper
                      ServerPlayerGameMode.LOGGER.debug("Mismatch in destroy block pos: {} {}", this.destroyPos, pos); // CraftBukkit - SPIGOT-5457 sent by client when interact event cancelled
 -                    this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1);
--                    this.player.connection.send(new ClientboundBlockBreakAckPacket(this.destroyPos, this.level.getBlockState(this.destroyPos), action, true, "aborted mismatched destroying"));
+-                    this.debugLogging(pos, true, sequence, "aborted mismatched destroying");
 +                    BlockState type = this.level.getBlockStateIfLoaded(this.destroyPos); // Paper - don't load unloaded chunks for stale records here
-+                    if (type != null) this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1); // Paper
-+                    if (type != null) this.player.connection.send(new ClientboundBlockBreakAckPacket(this.destroyPos, type, action, true, "aborted mismatched destroying")); // Paper
++                    if (type != null) this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1);
++                    if (type != null) this.debugLogging(pos, true, sequence, "aborted mismatched destroying");
 +                    this.destroyPos = BlockPos.ZERO; // Paper
                  }
  
@@ -68,10 +68,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              case STOP_DESTROY_BLOCK:
 +                // Paper start - Don't allow digging in unloaded chunks
 +                if (this.player.level.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) == null) {
++                    this.player.connection.ackBlockChangesUpTo(packet.getSequence());
 +                    return;
 +                }
-                 this.player.gameMode.handleBlockBreakAction(blockposition, packetplayinblockdig_enumplayerdigtype, packet.getDirection(), this.player.level.getMaxBuildHeight());
 +                // Paper end - Don't allow digging in unloaded chunks
+                 this.player.gameMode.handleBlockBreakAction(blockposition, packetplayinblockdig_enumplayerdigtype, packet.getDirection(), this.player.level.getMaxBuildHeight(), packet.getSequence());
+                 this.player.connection.ackBlockChangesUpTo(packet.getSequence());
                  return;
-             default:
-                 throw new IllegalArgumentException("Invalid player action");

patches/server/Implement-Brigadier-Mojang-API.patch

@@ -32,10 +32,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 -public class CommandSourceStack implements SharedSuggestionProvider {
 +public class CommandSourceStack implements SharedSuggestionProvider, com.destroystokyo.paper.brigadier.BukkitBrigadierCommandSource { // Paper
  
-     public static final SimpleCommandExceptionType ERROR_NOT_PLAYER = new SimpleCommandExceptionType(new TranslatableComponent("permissions.requires.player"));
-     public static final SimpleCommandExceptionType ERROR_NOT_ENTITY = new SimpleCommandExceptionType(new TranslatableComponent("permissions.requires.entity"));
+     public static final SimpleCommandExceptionType ERROR_NOT_PLAYER = new SimpleCommandExceptionType(Component.translatable("permissions.requires.player"));
+     public static final SimpleCommandExceptionType ERROR_NOT_ENTITY = new SimpleCommandExceptionType(Component.translatable("permissions.requires.entity"));
 @@ -0,0 +0,0 @@ public class CommandSourceStack implements SharedSuggestionProvider {
-         return this.textName;
+         return this.entity != null ? this.entity.asChatSender() : ChatSender.system(this.getDisplayName());
      }
  
 +    // Paper start

patches/server/Limit-Client-Sign-length-more.patch

@@ -26,26 +26,31 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
 +++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
 @@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
-     private int aboveGroundVehicleTickCount;
-     private int receivedMovePacketCount;
-     private int knownMovePacketCount;
-+    private static final int MAX_SIGN_LINE_LENGTH = Integer.getInteger("Paper.maxSignLength", 80);
+     private final ChatPreviewThrottler chatPreviewThrottler = new ChatPreviewThrottler();
+     private final AtomicReference<Instant> lastChatTimeStamp;
      private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
++    private static final int MAX_SIGN_LINE_LENGTH = Integer.getInteger("Paper.maxSignLength", 80); // Paper
  
      public ServerGamePacketListenerImpl(MinecraftServer server, Connection connection, ServerPlayer player) {
+         this.lastChatTimeStamp = new AtomicReference(Instant.EPOCH);
 @@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
  
-             for (int i = 0; i < signText.size(); ++i) {
-                 TextFilter.FilteredText currentLine = signText.get(i);
-+                // Paper start - cap line length - modified clients can send longer data than normal
-+                if (MAX_SIGN_LINE_LENGTH > 0 && currentLine.getRaw().length() > MAX_SIGN_LINE_LENGTH) {
-+                    // This handles multibyte characters as 1
-+                    int offset = currentLine.getRaw().codePoints().limit(MAX_SIGN_LINE_LENGTH).map(Character::charCount).sum();
-+                    if (offset < currentLine.getRaw().length()) {
-+                        signText.set(i, currentLine = net.minecraft.server.network.TextFilter.FilteredText.passThrough(currentLine.getRaw().substring(0, offset))); // this will break any filtering, but filtering is NYI as of 1.17
-+                    }
+     @Override
+     public void handleSignUpdate(ServerboundSignUpdatePacket packet) {
+-        List<String> list = (List) Stream.of(packet.getLines()).map(ChatFormatting::stripFormatting).collect(Collectors.toList());
++        // Paper start - cap line length - modified clients can send longer data than normal
++        String[] lines = packet.getLines();
++        for (int i = 0; i < lines.length; ++i) {
++            if (MAX_SIGN_LINE_LENGTH > 0 && lines[i].length() > MAX_SIGN_LINE_LENGTH) {
++                // This handles multibyte characters as 1
++                int offset = lines[i].codePoints().limit(MAX_SIGN_LINE_LENGTH).map(Character::charCount).sum();
++                if (offset < lines[i].length()) {
++                    lines[i] = lines[i].substring(0, offset); // this will break any filtering, but filtering is NYI as of 1.17
 +                }
-+                // Paper end
++            }
++        }
++        List<String> list = (List) Stream.of(lines).map(ChatFormatting::stripFormatting).collect(Collectors.toList());
++        // Paper end
  
-                 if (this.player.isTextFilteringEnabled()) {
-                     lines.add(net.kyori.adventure.text.Component.text(SharedConstants.filterText(currentLine.getFiltered())));
+         this.filterTextPacket(list, (list1) -> {
+             this.updateSignText(packet, list1);

patches/server/Prevent-Enderman-from-loading-chunks.patch

@@ -9,8 +9,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/world/entity/monster/EnderMan.java
 +++ b/src/main/java/net/minecraft/world/entity/monster/EnderMan.java
 @@ -0,0 +0,0 @@ public class EnderMan extends Monster implements NeutralMob {
-             int j = Mth.floor(this.enderman.getY() + random.nextDouble() * 2.0D);
-             int k = Mth.floor(this.enderman.getZ() - 1.0D + random.nextDouble() * 2.0D);
+             int j = Mth.floor(this.enderman.getY() + randomsource.nextDouble() * 2.0D);
+             int k = Mth.floor(this.enderman.getZ() - 1.0D + randomsource.nextDouble() * 2.0D);
              BlockPos blockposition = new BlockPos(i, j, k);
 -            BlockState iblockdata = world.getBlockState(blockposition);
 +            BlockState iblockdata = world.getBlockStateIfLoaded(blockposition); // Paper
@@ -19,8 +19,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              BlockState iblockdata1 = world.getBlockState(blockposition1);
              BlockState iblockdata2 = this.enderman.getCarriedBlock();
 @@ -0,0 +0,0 @@ public class EnderMan extends Monster implements NeutralMob {
-             int j = Mth.floor(this.enderman.getY() + random.nextDouble() * 3.0D);
-             int k = Mth.floor(this.enderman.getZ() - 2.0D + random.nextDouble() * 4.0D);
+             int j = Mth.floor(this.enderman.getY() + randomsource.nextDouble() * 3.0D);
+             int k = Mth.floor(this.enderman.getZ() - 2.0D + randomsource.nextDouble() * 4.0D);
              BlockPos blockposition = new BlockPos(i, j, k);
 -            BlockState iblockdata = world.getBlockState(blockposition);
 +            BlockState iblockdata = world.getBlockStateIfLoaded(blockposition); // Paper