SakuraMC/patches/server/0005-Visibility-API-and-Command.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samsuik <kfian294ma4@gmail.com>
Date: Tue, 21 Sep 2021 23:54:25 +0100
Subject: [PATCH] Visibility API and Command


diff --git a/src/main/java/me/samsuik/sakura/command/SakuraCommands.java b/src/main/java/me/samsuik/sakura/command/SakuraCommands.java
index c2651cac1dcf85fb67fe981b97efee4e56431de2..d7d0c49cc5d576c594dee16ddba037cd147e11fa 100644
--- a/src/main/java/me/samsuik/sakura/command/SakuraCommands.java
+++ b/src/main/java/me/samsuik/sakura/command/SakuraCommands.java
@@ -2,6 +2,9 @@ package me.samsuik.sakura.command;
 
 import io.papermc.paper.command.PaperPluginsCommand;
 import me.samsuik.sakura.command.subcommands.ConfigCommand;
+import me.samsuik.sakura.command.subcommands.FPSCommand;
+import me.samsuik.sakura.command.subcommands.VisualCommand;
+import me.samsuik.sakura.player.visibility.Visibility;
 import net.minecraft.server.MinecraftServer;
 import org.bukkit.command.Command;
 
@@ -14,6 +17,10 @@ public class SakuraCommands {
     static {
         COMMANDS.put("sakura", new SakuraCommand("sakura"));
         COMMANDS.put("config", new ConfigCommand("config"));
+        COMMANDS.put("fps", new FPSCommand("fps"));
+        COMMANDS.put("tntvisibility", new VisualCommand(Visibility.Setting.TNT_VISIBILITY, "tnttoggle"));
+        COMMANDS.put("sandvisibility", new VisualCommand(Visibility.Setting.SAND_VISIBILITY, "sandtoggle"));
+        COMMANDS.put("minimal", new VisualCommand(Visibility.Setting.MINIMAL, "minimaltnt", "tntlag"));
     }
 
     public static void registerCommands(final MinecraftServer server) {
diff --git a/src/main/java/me/samsuik/sakura/command/subcommands/FPSCommand.java b/src/main/java/me/samsuik/sakura/command/subcommands/FPSCommand.java
new file mode 100644
index 0000000000000000000000000000000000000000..23a12e9a8697a39951f9e8d841a119c14e06e02e
--- /dev/null
+++ b/src/main/java/me/samsuik/sakura/command/subcommands/FPSCommand.java
@@ -0,0 +1,26 @@
+package me.samsuik.sakura.command.subcommands;
+
+import me.samsuik.sakura.command.BaseSubCommand;
+import me.samsuik.sakura.player.visibility.ui.VisibilityGUI;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+@DefaultQualifier(NonNull.class)
+public class FPSCommand extends BaseSubCommand {
+
+    private final VisibilityGUI VISIBILITY_GUI = new VisibilityGUI();
+
+    public FPSCommand(String name) {
+        super(name);
+    }
+
+    @Override
+    public void execute(CommandSender sender, String[] args) {
+        if (sender instanceof Player player) {
+            VISIBILITY_GUI.showTo(player);
+        }
+    }
+
+}
diff --git a/src/main/java/me/samsuik/sakura/command/subcommands/VisualCommand.java b/src/main/java/me/samsuik/sakura/command/subcommands/VisualCommand.java
new file mode 100644
index 0000000000000000000000000000000000000000..6027e4741e2de7c6d3bd7b094c196a212e34e2f5
--- /dev/null
+++ b/src/main/java/me/samsuik/sakura/command/subcommands/VisualCommand.java
@@ -0,0 +1,45 @@
+package me.samsuik.sakura.command.subcommands;
+
+import me.samsuik.sakura.command.BaseSubCommand;
+import me.samsuik.sakura.configuration.GlobalConfiguration;
+import me.samsuik.sakura.player.visibility.Visibility;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+import java.util.Arrays;
+
+@DefaultQualifier(NonNull.class)
+public class VisualCommand extends BaseSubCommand {
+
+    private final Visibility.Setting type;
+
+    public VisualCommand(Visibility.Setting type, String... aliases) {
+        super(type.basicName());
+        this.setAliases(Arrays.asList(aliases));
+        this.type = type;
+    }
+
+    @Override
+    public void execute(CommandSender sender, String[] args) {
+        if (!(sender instanceof Player player)) {
+            return;
+        }
+
+        var visibility = player.getVisibility();
+
+        // Toggle clicked setting visibility
+        visibility.toggle(type);
+
+        // Send message to player
+        var state = visibility.isEnabled(type) ? "Enabled" : "Disabled";
+        player.sendMessage(MiniMessage.miniMessage().deserialize(GlobalConfiguration.get().fps.message,
+            Placeholder.unparsed("name", type.friendlyName()),
+            Placeholder.unparsed("state", state))
+        );
+    }
+
+}
diff --git a/src/main/java/me/samsuik/sakura/player/visibility/ui/VisibilityGUI.java b/src/main/java/me/samsuik/sakura/player/visibility/ui/VisibilityGUI.java
new file mode 100644
index 0000000000000000000000000000000000000000..725dd617641f7344d18d100dfa487430080e1d93
--- /dev/null
+++ b/src/main/java/me/samsuik/sakura/player/visibility/ui/VisibilityGUI.java
@@ -0,0 +1,108 @@
+package me.samsuik.sakura.player.visibility.ui;
+
+import me.samsuik.sakura.configuration.GlobalConfiguration;
+import me.samsuik.sakura.player.gui.ItemIcon;
+import me.samsuik.sakura.player.gui.PlayerGUI;
+import me.samsuik.sakura.player.visibility.Visibility;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.TextColor;
+import net.kyori.adventure.text.format.TextDecoration;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.function.BiFunction;
+
+public class VisibilityGUI extends PlayerGUI {
+
+    private static final BiFunction<Player, Holder, Inventory> CREATE_INVENTORY = (player, holder) -> {
+        var inventory = Bukkit.createInventory(holder, 45, Component.text("FPS GUI"));
+
+        for (var i = 0; i < inventory.getSize(); ++i) {
+            var column = i % 9;
+            var row    = (i + 1) / 9;
+
+            var background = column > 0 && column < 8 ? (row > 0 && row < 4 || column > 1 && column < 7)
+                ? Material.matchMaterial(GlobalConfiguration.get().fps.material)
+                : Material.WHITE_STAINED_GLASS_PANE
+                : Material.BLACK_STAINED_GLASS_PANE;
+
+            var itemstack = new ItemStack(background);
+            var meta = itemstack.getItemMeta();
+            meta.displayName(Component.space());
+            itemstack.setItemMeta(meta);
+
+            inventory.setItem(i, itemstack);
+        }
+
+        return inventory;
+    };
+
+    public VisibilityGUI() {
+        super(CREATE_INVENTORY);
+    }
+
+    @Override
+    protected void register() {
+        registerFPSIcon(Visibility.Setting.TNT_VISIBILITY, Material.TNT, NamedTextColor.RED, 12);
+        registerFPSIcon(Visibility.Setting.SAND_VISIBILITY, Material.SAND, NamedTextColor.YELLOW, 14);
+        registerFPSIcon(Visibility.Setting.MINIMAL, Material.NETHER_BRICK_SLAB, NamedTextColor.GOLD, 13);
+        registerFPSIcon(Visibility.Setting.SPAWNERS, Material.SPAWNER, NamedTextColor.DARK_GRAY, 20);
+        registerFPSIcon(Visibility.Setting.FLASHING_TNT, Material.REDSTONE_LAMP, NamedTextColor.RED, 22);
+        registerFPSIcon(Visibility.Setting.EXPLOSIONS, Material.COBWEB, NamedTextColor.WHITE, 24);
+        registerFPSIcon(Visibility.Setting.PISTONS, Material.PISTON, NamedTextColor.GOLD, 30);
+        registerFPSIcon(Visibility.Setting.REDSTONE, Material.REDSTONE, NamedTextColor.DARK_RED, 31);
+        registerFPSIcon(Visibility.Setting.ENCHANTMENT_GLINT, Material.ENCHANTED_BOOK, NamedTextColor.DARK_PURPLE, 32);
+
+        registerIcon(new ItemIcon(
+            (player) -> new ItemStack(Material.EMERALD_BLOCK),
+            (player) -> player.getVisibility().toggleAll(),
+            26
+        ));
+    }
+
+    private void registerFPSIcon(Visibility.Setting setting, Material material, TextColor colour, int slot) {
+        registerIcon(new ItemIcon((player) -> {
+            var visibility = player.getVisibility();
+
+            // Get the current state as a string
+            var state = visibility.isEnabled(setting)
+                ? "Enabled" : "Disabled";
+
+            // Friendly name as a component
+            var title = Component.text(setting.friendlyName()).color(colour);
+            var itemstack = new ItemStack(material);
+            var meta = itemstack.getItemMeta();
+
+            // Display names are italic by default
+            title = title.decoration(TextDecoration.ITALIC, false);
+
+            // Set the display name
+            meta.displayName(title.append(Component.space())
+                .append(Component.text(state).color(NamedTextColor.GRAY)));
+
+            itemstack.setItemMeta(meta);
+            return itemstack;
+        }, (player) -> {
+            var visibility = player.getVisibility();
+
+            // Toggle clicked setting visibility
+            visibility.toggle(setting);
+
+            // Send message to player
+            var state = visibility.isEnabled(setting) ? "Enabled" : "Disabled";
+            player.sendMessage(MiniMessage.miniMessage().deserialize(GlobalConfiguration.get().fps.message,
+                Placeholder.unparsed("name", setting.friendlyName()),
+                Placeholder.unparsed("state", state))
+            );
+        },
+            slot
+        ));
+    }
+
+}
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundSectionBlocksUpdatePacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundSectionBlocksUpdatePacket.java
index e3f355c85eb7cc8c1683e3009502c10a5ed32daa..349e56d5caad3fc38e83eac6ffff83e2fb30eaa7 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundSectionBlocksUpdatePacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundSectionBlocksUpdatePacket.java
@@ -16,7 +16,7 @@ public class ClientboundSectionBlocksUpdatePacket implements Packet<ClientGamePa
     private static final int POS_IN_SECTION_BITS = 12;
     private final SectionPos sectionPos;
     private final short[] positions;
-    private final BlockState[] states;
+    public final BlockState[] states; // Sakura - private -> public
 
     public ClientboundSectionBlocksUpdatePacket(SectionPos sectionPos, ShortSet positions, LevelChunkSection section) {
         this.sectionPos = sectionPos;
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 2a3af1a071766c30567cdf1681059cdce967afff..4535beab09310915b0239b01c1b807f1ca25d959 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1575,6 +1575,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
             this.profiler.pop();
             this.profiler.pop();
             worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
+            worldserver.minimalTNT.clear(); // Sakura - visibility api
         }
         this.isIteratingOverLevels = false; // Paper
 
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 0c2617574e21037d94ac56ad08b490f9bca5c5af..45f0e7ef92c32dc51b81c0cc9f1d1a2fbab02599 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -1301,6 +1301,22 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
                 }
                 // Paper end - check Y
 
+                // Sakura start - visibility api
+                if (this.entity.isPrimedTNT && player.visibility.isToggled(me.samsuik.sakura.player.visibility.Visibility.Setting.TNT_VISIBILITY)
+                    || this.entity.isFallingBlock && player.visibility.isToggled(me.samsuik.sakura.player.visibility.Visibility.Setting.SAND_VISIBILITY)) {
+                    flag = false;
+                }
+
+                if (flag && (this.entity.isPrimedTNT || this.entity.isFallingBlock) && player.visibility.isToggled(me.samsuik.sakura.player.visibility.Visibility.Setting.MINIMAL)) {
+                    long key = entity.blockPosition().asLong();
+
+                    if (level.minimalTNT.containsKey(key)) {
+                        flag = level.minimalTNT.get(key) == entity.getId();
+                    } else {
+                        level.minimalTNT.put(key, entity.getId());
+                    }
+                }
+                // Sakura end
                 // CraftBukkit start - respect vanish API
                 if (!player.getBukkitEntity().canSee(this.entity.getBukkitEntity())) {
                     flag = false;
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index 35674f92a67f93382103c2766df4b678ba5c862f..83c4639c2bdca4dc4281d9f5eca104af3063bfa5 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -47,6 +47,13 @@ import net.minecraft.util.Mth;
 import org.bukkit.entity.Player;
 import org.bukkit.event.player.PlayerVelocityEvent;
 // CraftBukkit end
+// Sakura start
+import me.samsuik.sakura.player.visibility.Visibility;
+import net.minecraft.network.protocol.game.ClientboundAddEntityPacket;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.Blocks;
+// Sakura end
 
 public class ServerEntity {
 
@@ -284,6 +291,18 @@ public class ServerEntity {
         this.entity.startSeenByPlayer(player);
     }
 
+    // Sakura start - visibility api
+    protected Packet<ClientGamePacketListener> createEntityPacket(Entity entity, ServerPlayer entityplayer) {
+        if (entity.isPrimedTNT && entityplayer.visibility.isToggled(Visibility.Setting.FLASHING_TNT)) {
+            return new ClientboundAddEntityPacket(entity.getId(), entity.getUUID(),
+                entity.getX(), entity.getY(), entity.getZ(), 0, 0, EntityType.FALLING_BLOCK,
+                Block.getId(Blocks.TNT.defaultBlockState()), entity.getDeltaMovement(), entity.getYHeadRot());
+        } else {
+            return entity.getAddEntityPacket();
+        }
+    }
+    // Sakura end
+
     public void sendPairingData(ServerPlayer player, Consumer<Packet<ClientGamePacketListener>> sender) {
         if (this.entity.isRemoved()) {
             // CraftBukkit start - Remove useless error spam, just return
@@ -292,12 +311,19 @@ public class ServerEntity {
             // CraftBukkit end
         }
 
-        Packet<ClientGamePacketListener> packet = this.entity.getAddEntityPacket();
+        Packet<ClientGamePacketListener> packet = this.createEntityPacket(this.entity, player); // Sakura - visibility api
 
         this.yHeadRotp = Mth.floor(this.entity.getYHeadRot() * 256.0F / 360.0F);
         sender.accept(packet);
         if (this.trackedDataValues != null) {
-            sender.accept(new ClientboundSetEntityDataPacket(this.entity.getId(), this.trackedDataValues));
+            // Sakura start - visibility api
+            if (this.entity.isPrimedTNT && player.visibility.isToggled(Visibility.Setting.FLASHING_TNT)) {
+                // Could modifying this break something elsewhere?
+                trackedDataValues.removeIf((data) -> data.id() == 8);
+            }
+
+            sender.accept(new ClientboundSetEntityDataPacket(this.entity.getId(), trackedDataValues));
+            // Sakura end
         }
 
         boolean flag = this.trackDelta;
@@ -367,6 +393,32 @@ public class ServerEntity {
         }
 
     }
+    
+    // Sakura start - visibility api
+    private void broadcastEntityData(List<SynchedEntityData.DataValue<?>> packedValues) {
+        Packet<?> packet0 = new ClientboundSetEntityDataPacket(this.entity.getId(), packedValues);
+        Packet<?> packet1 = null;
+
+        if (this.entity.isPrimedTNT) {
+            var copyOfDirtyItems = Lists.newArrayList(packedValues);
+            copyOfDirtyItems.removeIf((data) -> data.id() == 8);
+
+            if (!copyOfDirtyItems.isEmpty()) {
+                packet1 = new ClientboundSetEntityDataPacket(this.entity.getId(), copyOfDirtyItems);
+            }
+        }
+
+        for (var connection : trackedPlayers) {
+            var player = connection.getPlayer();
+
+            if (!this.entity.isPrimedTNT || !player.visibility.isToggled(Visibility.Setting.FLASHING_TNT)) {
+                connection.send(packet0);
+            } else if (packet1 != null) {
+                connection.send(packet1);
+            }
+        }
+    }
+    // Sakura end
 
     private void sendDirtyEntityData() {
         SynchedEntityData datawatcher = this.entity.getEntityData();
@@ -374,7 +426,7 @@ public class ServerEntity {
 
         if (list != null) {
             this.trackedDataValues = datawatcher.getNonDefaultValues();
-            this.broadcastAndSend(new ClientboundSetEntityDataPacket(this.entity.getId(), list));
+            this.broadcastEntityData(list); // Sakura - visibility api
         }
 
         if (this.entity instanceof LivingEntity) {
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 80c571f73057cfeb39e550aeabd4647f323de9c1..a9cd388c7ebb377511f59398b8f31a04d7abe493 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1931,7 +1931,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
         while (iterator.hasNext()) {
             ServerPlayer entityplayer = (ServerPlayer) iterator.next();
 
-            if (entityplayer.distanceToSqr(x, y, z) < 4096.0D) {
+            if (entityplayer.distanceToSqr(x, y, z) < 4096.0D && !entityplayer.visibility.isToggled(me.samsuik.sakura.player.visibility.Visibility.Setting.EXPLOSIONS)) { // Sakura - visibility api
                 entityplayer.connection.send(new ClientboundExplodePacket(x, y, z, power, explosion.getToBlow(), (Vec3) explosion.getHitPlayers().get(entityplayer)));
             }
         }
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index d4aec99cac3f83d764e21946cc904c00e084704e..eef39746b355d72376651c3a6ba2f8101849141a 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -254,6 +254,7 @@ public class ServerPlayer extends Player {
     public final int[] mobCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper
     // Paper end - mob spawning rework
     public final int[] mobBackoffCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper - per player mob count backoff
+    public final me.samsuik.sakura.player.visibility.Visibility visibility = new me.samsuik.sakura.player.visibility.Visibility(); // Sakura - visiblity api
 
     // CraftBukkit start
     public String displayName;
@@ -559,6 +560,15 @@ public class ServerPlayer extends Player {
                 this.respawnDimension = (ResourceKey) dataresult1.resultOrPartial(logger1::error).orElse(Level.OVERWORLD);
             }
         }
+        // Sakura start - visibility api
+        CompoundTag tag = nbt.getCompound("Sakura.Visuals");
+
+        for (me.samsuik.sakura.player.visibility.Visibility.Setting setting : me.samsuik.sakura.player.visibility.Visibility.Setting.values()) {
+            if (tag.getBoolean(setting.name())) {
+                visibility.toggle(setting);
+            }
+        }
+        // Sakura end
 
     }
 
@@ -625,6 +635,13 @@ public class ServerPlayer extends Player {
             });
         }
         this.getBukkitEntity().setExtraData(nbt); // CraftBukkit
+        // Sakura start - visibility api
+        CompoundTag tag = new CompoundTag();
+        for (me.samsuik.sakura.player.visibility.Visibility.Setting setting : me.samsuik.sakura.player.visibility.Visibility.Setting.values()) {
+            tag.putBoolean(setting.name(), visibility.isToggled(setting));
+        }
+        nbt.put("Sakura.Visuals", tag);
+        // Sakura end
 
     }
 
diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
index 231150bac0ae61e9722c2cdfd70d6f7d254681e4..a091a2c7cb755607f7be30eec4844b0571e8b7f8 100644
--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
@@ -40,6 +40,23 @@ import org.bukkit.craftbukkit.util.Waitable;
 import org.bukkit.event.player.PlayerKickEvent;
 import org.bukkit.event.player.PlayerResourcePackStatusEvent;
 // CraftBukkit end
+// Sakura start
+import com.mojang.datafixers.util.Pair;
+import me.samsuik.sakura.player.visibility.Visibility.Setting;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
+import net.minecraft.network.protocol.game.ClientboundBlockEventPacket;
+import net.minecraft.network.protocol.game.ClientboundBlockUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData.BlockEntityTagOutput;
+import net.minecraft.network.protocol.game.ClientboundSectionBlocksUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundSetEquipmentPacket;
+import net.minecraft.world.level.block.DiodeBlock;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.RedStoneWireBlock;
+import net.minecraft.world.level.block.piston.PistonBaseBlock;
+import net.minecraft.world.level.block.piston.PistonHeadBlock;
+// Sakura end
 
 public abstract class ServerCommonPacketListenerImpl implements ServerCommonPacketListener {
 
@@ -242,6 +259,61 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
         } else if (packet instanceof ClientboundSetDefaultSpawnPositionPacket) {
             ClientboundSetDefaultSpawnPositionPacket packet6 = (ClientboundSetDefaultSpawnPositionPacket) packet;
             this.player.compassTarget = CraftLocation.toBukkit(packet6.pos, this.getCraftPlayer().getWorld());
+            // Sakura start - visibility api
+        } else if (!player.visibility.isModified()) {
+            // Skip players that haven't modified their settings
+        } else if (packet instanceof ClientboundSetEquipmentPacket equipment
+            && player.visibility.isToggled(Setting.ENCHANTMENT_GLINT)) {
+            var slots = new java.util.ArrayList<Pair<net.minecraft.world.entity.EquipmentSlot, net.minecraft.world.item.ItemStack>>();
+
+            for (int i = 0; i < equipment.getSlots().size(); i++) {
+                var pair = equipment.getSlots().get(i);
+                var itemstack = pair.getSecond();
+
+                if (itemstack.isEnchanted()) {
+                    var copy = itemstack.copy();
+                    copy.getTag().remove("ench");
+                    itemstack = copy;
+                }
+
+                slots.add(new Pair<>(pair.getFirst(), itemstack));
+            }
+
+            packet = new ClientboundSetEquipmentPacket(equipment.getEntity(), slots);
+        } else if (packet instanceof ClientboundBlockEntityDataPacket blockdata
+            && player.visibility.isToggled(Setting.SPAWNERS)
+            && player.level().getBlockIfLoaded(blockdata.getPos()) == Blocks.SPAWNER) {
+            packet = new ClientboundBlockUpdatePacket(blockdata.getPos(), Blocks.BLACK_STAINED_GLASS.defaultBlockState());
+        } else if (packet instanceof ClientboundBlockUpdatePacket updatePacket) {
+            if (player.visibility.isToggled(Setting.SPAWNERS) && updatePacket.blockState.getBlock() == Blocks.SPAWNER) {
+                packet = new ClientboundBlockUpdatePacket(updatePacket.getPos(), Blocks.BLACK_STAINED_GLASS.defaultBlockState());
+            } else if (player.visibility.isToggled(Setting.REDSTONE)
+                && (updatePacket.blockState.getBlock() instanceof DiodeBlock
+                || updatePacket.blockState.getBlock() instanceof RedStoneWireBlock)) {
+                return;
+            } else if (player.visibility.isToggled(Setting.PISTONS)
+                && (updatePacket.blockState.getBlock() instanceof PistonBaseBlock
+                || updatePacket.blockState.getBlock() instanceof PistonHeadBlock)) {
+                return;
+            }
+        } else if (packet instanceof ClientboundSectionBlocksUpdatePacket sectionPacket) {
+            for (var state : sectionPacket.states) {
+                if (player.visibility.isToggled(Setting.REDSTONE)
+                    && (state.getBlock() instanceof DiodeBlock
+                    || state.getBlock() instanceof RedStoneWireBlock)) {
+                    return;
+                } else if (player.visibility.isToggled(Setting.PISTONS)
+                    && (state.getBlock() instanceof PistonBaseBlock
+                    || state.getBlock() instanceof PistonHeadBlock)) {
+                    return;
+                }
+            }
+        } else if (packet instanceof ClientboundBlockEventPacket blockevent
+            && player.visibility.isToggled(Setting.PISTONS)
+            && (blockevent.getBlock() instanceof PistonBaseBlock
+            || blockevent.getBlock() instanceof PistonHeadBlock)) {
+            return;
+            // Sakura end
         }
         // CraftBukkit end
         boolean flag = !this.suspendFlushingOnServerThread || !this.server.isSameThread();
@@ -252,8 +324,11 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
             CrashReport crashreport = CrashReport.forThrowable(throwable, "Sending packet");
             CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Packet being sent");
 
+            // Sakura start - this has to be effectively final as we're modifying the packet above
+            var packetFinal = packet;
             crashreportsystemdetails.setDetail("Packet class", () -> {
-                return packet.getClass().getCanonicalName();
+                return packetFinal.getClass().getCanonicalName();
+                // Sakura end
             });
             throw new ReportedException(crashreport);
         }
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 8bd243a8d5a4be54f907af2b02e96ea833cee62f..946e01733d85b119abe99910efe30029a344185b 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3098,6 +3098,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
 
                         event.setCancelled(cancelled);
                         AbstractContainerMenu oldContainer = this.player.containerMenu; // SPIGOT-1224
+                        me.samsuik.sakura.player.gui.PlayerGUI.onWindowClick(event); // Sakura - visibility gui
                         cserver.getPluginManager().callEvent(event);
                         if (this.player.containerMenu != oldContainer) {
                             return;
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index f20ae9153b7098980ce6c0e75fcbbb4da652661b..0ebeac99c589ca70c26fa7db55f0c8f9a0e5fcd1 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -528,6 +528,8 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
         this.teleportTo(worldserver, null);
     }
     // Paper end - make end portalling safe
+    public boolean isPrimedTNT; // Sakura
+    public boolean isFallingBlock; // Sakura
 
     public Entity(EntityType<?> type, Level world) {
         this.id = Entity.ENTITY_COUNTER.incrementAndGet();
diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
index 9105418b29c89f092378da11b14e3d324332a2ba..d5560231aa398d56d1de06b19946bfcfe003df00 100644
--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -73,6 +73,7 @@ public class FallingBlockEntity extends Entity {
         this.blockState = Blocks.SAND.defaultBlockState();
         this.dropItem = true;
         this.fallDamageMax = 40;
+        this.isFallingBlock = true; // Sakura
     }
 
     public FallingBlockEntity(Level world, double x, double y, double z, BlockState block) {
diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
index 4ce3e69970dd9eb251d0538a2d233ca30e9e5e47..d14a8e2cf748cb3784253d99d1bf3c8f9eb2089c 100644
--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
@@ -31,6 +31,7 @@ public class PrimedTnt extends Entity implements TraceableEntity {
     public PrimedTnt(EntityType<? extends PrimedTnt> type, Level world) {
         super(type, world);
         this.blocksBuilding = true;
+        this.isPrimedTNT = true; // Sakura
     }
 
     public PrimedTnt(Level world, double x, double y, double z, @Nullable LivingEntity igniter) {
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 8006ec1eece1e1c5c0b18bc2b5190bbb43e9d4c3..9e49196f7038c710e850005b6ad96c4eafca0f2e 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -216,6 +216,8 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
 
     public abstract ResourceKey<LevelStem> getTypeKey();
 
+    public final it.unimi.dsi.fastutil.longs.Long2IntMap minimalTNT = new it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap(); // Sakura - visibility api
+
     protected Level(WritableLevelData worlddatamutable, ResourceKey<Level> resourcekey, RegistryAccess iregistrycustom, Holder<DimensionType> holder, Supplier<ProfilerFiller> supplier, boolean flag, boolean flag1, long i, int j, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.function.Function<org.spigotmc.SpigotWorldConfig, io.papermc.paper.configuration.WorldConfiguration> paperWorldConfigCreator, Supplier<me.samsuik.sakura.configuration.WorldConfiguration> sakuraWorldConfigCreator, java.util.concurrent.Executor executor) { // Sakura // Paper - Async-Anti-Xray - Pass executor
         this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot
         this.paperConfig = paperWorldConfigCreator.apply(this.spigotConfig); // Paper
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index e188bb3ba5d2ec28421947c0b66b25eecb569bfe..9ac026a464f8b5db5fe7543b71cd5bcaa3f65f70 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -489,6 +489,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         this.getHandle().displayName = name == null ? getName() : name;
     }
 
+    // Sakura start - visiblity api
+    @Override
+    public me.samsuik.sakura.player.visibility.Visibility getVisibility() {
+        return getHandle().visibility;
+    }
+    // Sakura end
+
     // Paper start
     @Override
     public void playerListName(net.kyori.adventure.text.Component name) {