TabooLib/src/main/scala/io/izzel/taboolib/module/nms/NMSImpl.java

package io.izzel.taboolib.module.nms;

import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import io.izzel.taboolib.Version;
import io.izzel.taboolib.module.nms.impl.Type;
import io.izzel.taboolib.module.lite.SimpleReflection;
import io.izzel.taboolib.module.locale.logger.TLogger;
import io.izzel.taboolib.module.nms.nbt.NBTList;
import io.izzel.taboolib.module.nms.nbt.*;
import io.izzel.taboolib.module.packet.TPacketHandler;
import io.izzel.taboolib.util.Ref;
import net.minecraft.server.v1_12_R1.ChatMessageType;
import net.minecraft.server.v1_12_R1.EntityVillager;
import net.minecraft.server.v1_12_R1.MinecraftServer;
import net.minecraft.server.v1_12_R1.NBTTagCompound;
import net.minecraft.server.v1_13_R2.EnumHand;
import net.minecraft.server.v1_13_R2.IRegistry;
import net.minecraft.server.v1_14_R1.*;
import net.minecraft.server.v1_15_R1.LightEngineThreaded;
import net.minecraft.server.v1_8_R3.ChatComponentText;
import net.minecraft.server.v1_8_R3.GenericAttributes;
import net.minecraft.server.v1_8_R3.NBTTagByte;
import net.minecraft.server.v1_8_R3.NBTTagByteArray;
import net.minecraft.server.v1_8_R3.NBTTagDouble;
import net.minecraft.server.v1_8_R3.NBTTagFloat;
import net.minecraft.server.v1_8_R3.NBTTagInt;
import net.minecraft.server.v1_8_R3.NBTTagIntArray;
import net.minecraft.server.v1_8_R3.NBTTagList;
import net.minecraft.server.v1_8_R3.NBTTagLong;
import net.minecraft.server.v1_8_R3.NBTTagShort;
import net.minecraft.server.v1_8_R3.NBTTagString;
import net.minecraft.server.v1_8_R3.PacketPlayOutChat;
import net.minecraft.server.v1_8_R3.PacketPlayOutTitle;
import org.bukkit.Chunk;
import org.bukkit.Particle;
import org.bukkit.World;
import org.bukkit.*;
import org.bukkit.block.Block;
import org.bukkit.craftbukkit.v1_12_R1.CraftParticle;
import org.bukkit.craftbukkit.v1_13_R2.CraftServer;
import org.bukkit.craftbukkit.v1_13_R2.CraftWorld;
import org.bukkit.craftbukkit.v1_13_R2.entity.CraftPlayer;
import org.bukkit.craftbukkit.v1_13_R2.entity.CraftVillager;
import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.entity.Villager;
import org.bukkit.event.entity.CreatureSpawnEvent;
import org.bukkit.event.entity.ProjectileHitEvent;
import org.bukkit.inventory.meta.PotionMeta;
import org.bukkit.util.Vector;

import java.lang.reflect.Field;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Consumer;

/**
 * @Author 坏黑
 * @Since 2018-11-09 14:42
 */
public class NMSImpl extends NMS {

    private Field entityTypesField;
    private final boolean is11300 = Version.isAfter(Version.v1_13);
    private final boolean is11400 = Version.isAfter(Version.v1_14);
    private final boolean is11500 = Version.isAfter(Version.v1_15);

    static {
        SimpleReflection.saveField(NBTTagString.class);
        SimpleReflection.saveField(NBTTagDouble.class);
        SimpleReflection.saveField(NBTTagInt.class);
        SimpleReflection.saveField(NBTTagFloat.class);
        SimpleReflection.saveField(NBTTagShort.class);
        SimpleReflection.saveField(NBTTagLong.class);
        SimpleReflection.saveField(NBTTagByte.class);
        SimpleReflection.saveField(NBTTagIntArray.class);
        SimpleReflection.saveField(NBTTagByteArray.class);
        SimpleReflection.saveField(NBTTagList.class);
        SimpleReflection.saveField(NBTTagCompound.class);
    }

    public NMSImpl() {
        if (Version.isAfter(Version.v1_13)) {
            SimpleReflection.saveField(net.minecraft.server.v1_12_R1.Entity.class);
            for (Field declaredField : SimpleReflection.getFields(net.minecraft.server.v1_12_R1.Entity.class).values()) {
                if (declaredField.getType().getSimpleName().equals("EntityTypes")) {
                    entityTypesField = declaredField;
                    break;
                }
            }
        }
        SimpleReflection.saveField(MinecraftServer.class);
    }

    @Override
    public void openBook(Player player, org.bukkit.inventory.ItemStack book) {
        // 你妈 1.14.3 的 a() 到 1.14.4 的 openBook() 不改 nms 版本号？都是 1_14_R1？神经病吧
        Object bookItem = org.bukkit.craftbukkit.v1_13_R2.inventory.CraftItemStack.asNMSCopy(book);
        try {
            ((CraftPlayer) player).getHandle().a((net.minecraft.server.v1_13_R2.ItemStack) bookItem, EnumHand.MAIN_HAND);
        } catch (Throwable ignored) {
            try {
                ((org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer) player).getHandle().openBook((net.minecraft.server.v1_14_R1.ItemStack) bookItem, net.minecraft.server.v1_14_R1.EnumHand.MAIN_HAND);
            } catch (Throwable ignored2) {
            }
        }
    }

    @Override
    public boolean isRunning() {
        return !SimpleReflection.getFieldValue(MinecraftServer.class, ((CraftServer) Bukkit.getServer()).getServer(), "hasStopped", false);
    }

    @Override
    public Object toPacketPlayOutWorldParticles(Particle var1, boolean var2, float var3, float var4, float var5, float var6, float var7, float var8, float var9, int var10, Object var11) {
        if (is11300) {
            return new net.minecraft.server.v1_13_R2.PacketPlayOutWorldParticles(org.bukkit.craftbukkit.v1_13_R2.CraftParticle.toNMS(var1, var11), var2, var3, var4, var5, var6, var7, var8, var9, var10);
        } else {
            return new net.minecraft.server.v1_12_R1.PacketPlayOutWorldParticles(CraftParticle.toNMS(var1), var2, var3, var4, var5, var6, var7, var8, var9, var10, CraftParticle.toData(var1, var11));
        }
    }

    @Override
    public double[] getTPS() {
        return MinecraftServer.getServer().recentTps;
    }

    @Override
    public String getName(org.bukkit.inventory.ItemStack itemStack) {
        Object nmsItem = CraftItemStack.asNMSCopy(itemStack);
        if (Version.isAfter(Version.v1_13)) {
            String name = ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getItem().getName();
            if (itemStack.getItemMeta() instanceof PotionMeta) {
                name += ".effect." + ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getTag().getString("Potion").replaceAll("minecraft:(strong_|long_)?", "");
            }
            return name;
        } else if (Version.isAfter(Version.v1_11)) {
            String name = ((net.minecraft.server.v1_12_R1.ItemStack) nmsItem).getItem().a((net.minecraft.server.v1_12_R1.ItemStack) nmsItem);
            if (itemStack.getItemMeta() instanceof PotionMeta) {
                return name.replace("item.", "") + ".effect." + ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getTag().getString("Potion").replaceAll("(minecraft:)?(strong_|long_)?", "");
            }
            return name + ".name";
        } else {
            String name = ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getItem().getName();
            if (itemStack.getItemMeta() instanceof PotionMeta) {
                return name.replace("item.", "") + ".effect." + ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getTag().getString("Potion").replaceAll("(minecraft:)?(strong_|long_)?", "");
            }
            return name + ".name";
        }
    }

    @Override
    public String getName(Entity entity) {
        if (Version.isAfter(Version.v1_14)) {
            Object minecraftKey = net.minecraft.server.v1_14_R1.EntityTypes.getName(((org.bukkit.craftbukkit.v1_14_R1.entity.CraftEntity) entity).getHandle().getEntityType());
            return "entity.minecraft." + ((net.minecraft.server.v1_14_R1.MinecraftKey) minecraftKey).getKey();
        } else if (Version.isAfter(Version.v1_13)) {
            try {
                String name = "entity.minecraft." + IRegistry.ENTITY_TYPE.getKey((net.minecraft.server.v1_13_R2.EntityTypes<?>) Ref.getField(((org.bukkit.craftbukkit.v1_13_R2.entity.CraftEntity) entity).getHandle(), entityTypesField)).getKey();
                if (entity instanceof Villager && ((CraftVillager) entity).getCareer() != null) {
                    name += "." + String.valueOf(((CraftVillager) entity).getCareer()).toLowerCase();
                }
                return name;
            } catch (Throwable t) {
                t.printStackTrace();
            }
            return "entity.null";
        } else {
            try {
                if (entity instanceof Player) {
                    return "entity.Player.name";
                }
                if (entity instanceof Villager) {
                    String name = "name";
                    Object villager = ((org.bukkit.craftbukkit.v1_12_R1.entity.CraftVillager) entity).getHandle();
                    Object export = new NBTTagCompound();
                    ((EntityVillager) villager).b((NBTTagCompound) export);
                    int career = ((NBTTagCompound) export).getInt("Career");
                    switch (((EntityVillager) villager).getProfession()) {
                        case 0:
                            if (career == 1) {
                                name = "farmer";
                            } else if (career == 2) {
                                name = "fisherman";
                            } else if (career == 3) {
                                name = "shepherd";
                            } else if (career == 4) {
                                name = "fletcher";
                            }
                            break;
                        case 1:
                            if (career == 1) {
                                name = "librarian";
                            } else if (career == 2) {
                                name = "cartographer";
                            }
                            break;
                        case 2:
                            name = "cleric";
                            break;
                        case 3:
                            if (career == 1) {
                                name = "armor";
                            } else if (career == 2) {
                                name = "weapon";
                            } else if (career == 3) {
                                name = "tool";
                            }
                            break;
                        case 4:
                            if (career == 1) {
                                name = "butcher";
                            } else if (career == 2) {
                                name = "leather";
                            }
                            break;
                        case 5:
                            name = "nitwit";
                            break;
                    }
                    return "entity.Villager." + name;
                }
                return "entity." + entity.getType().getEntityClass().getSimpleName() + ".name";
            } catch (Throwable ignore) {
            }
            return "entity.null";
        }
    }

    @Override
    public void sendTitle(Player player, String title, int titleFadein, int titleStay, int titleFadeout, String subtitle, int subtitleFadein, int subtitleStay, int subtitleFadeout) {
        TPacketHandler.sendPacket(player, new PacketPlayOutTitle(PacketPlayOutTitle.EnumTitleAction.TIMES, new ChatComponentText(String.valueOf(title)), titleFadein, titleStay, titleFadeout));
        TPacketHandler.sendPacket(player, new PacketPlayOutTitle(PacketPlayOutTitle.EnumTitleAction.TITLE, new ChatComponentText(String.valueOf(title)), titleFadein, titleStay, titleFadeout));
        TPacketHandler.sendPacket(player, new PacketPlayOutTitle(PacketPlayOutTitle.EnumTitleAction.TIMES, new ChatComponentText(String.valueOf(subtitle)), subtitleFadein, subtitleStay, subtitleFadeout));
        TPacketHandler.sendPacket(player, new PacketPlayOutTitle(PacketPlayOutTitle.EnumTitleAction.SUBTITLE, new ChatComponentText(String.valueOf(subtitle)), subtitleFadein, subtitleStay, subtitleFadeout));
    }

    @Override
    public void sendActionBar(Player player, String text) {
        if (Version.isAfter(Version.v1_12)) {
            TPacketHandler.sendPacket(player, new net.minecraft.server.v1_12_R1.PacketPlayOutChat(new net.minecraft.server.v1_12_R1.ChatComponentText(String.valueOf(text)), ChatMessageType.GAME_INFO));
        } else {
            TPacketHandler.sendPacket(player, new PacketPlayOutChat(new ChatComponentText(String.valueOf(text)), (byte) 2));
        }
    }

    @Override
    public org.bukkit.inventory.ItemStack _NBT(org.bukkit.inventory.ItemStack itemStack, Object compound) {
        Object nmsItem = CraftItemStack.asNMSCopy(itemStack);
        try {
            ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).setTag((net.minecraft.server.v1_8_R3.NBTTagCompound) toNBTBase((io.izzel.taboolib.module.nms.nbt.NBTBase) compound));
        } catch (Throwable t) {
            t.printStackTrace();
        }
        return CraftItemStack.asBukkitCopy((net.minecraft.server.v1_8_R3.ItemStack) nmsItem);
    }

    @Override
    public Object _NBT(org.bukkit.inventory.ItemStack itemStack) {
        Object nmsItem = CraftItemStack.asNMSCopy(itemStack);
        try {
            return ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).hasTag() ? fromNBTBase(((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getTag()) : new NBTCompound();
        } catch (Throwable t) {
            t.printStackTrace();
        }
        return new NBTCompound();
    }

    @Override
    public List<NBTAttribute> getBaseAttribute(org.bukkit.inventory.ItemStack item) {
        List<NBTAttribute> list = Lists.newArrayList();
        Object nmsItem = CraftItemStack.asNMSCopy(item);
        Object attr;
        if (Version.isAfter(Version.v1_9)) {
            attr = ((net.minecraft.server.v1_12_R1.ItemStack) nmsItem).getItem().a(net.minecraft.server.v1_12_R1.EnumItemSlot.MAINHAND);
        } else {
            attr = ((net.minecraft.server.v1_8_R3.ItemStack) nmsItem).getItem().i();
        }
        ((Multimap) attr).asMap().forEach((k, v) -> {
            Object nbt = net.minecraft.server.v1_12_R1.GenericAttributes.a((net.minecraft.server.v1_12_R1.AttributeModifier) v);
            list.add(new NBTAttribute(
                    new UUID(((NBTTagCompound) nbt).getLong("UUIDMost"), ((NBTTagCompound) nbt).getLong("UUIDLeast")),
                    String.valueOf(k),
                    ((NBTTagCompound) nbt).getString("Name"),
                    ((NBTTagCompound) nbt).getDouble("Amount"),
                    NBTOperation.fromIndex(((NBTTagCompound) nbt).getInt("Operation"))
            ));
        });
        return list;
    }

    @Override
    public Object toNMS(Attribute attribute) {
        SimpleReflection.checkAndSave(GenericAttributes.class);
        return SimpleReflection.getFieldValue(GenericAttributes.class, null, attribute.name());
    }

    @Override
    public Entity getEntityById(int id) {
        for (World world : Bukkit.getServer().getWorlds()) {
            net.minecraft.server.v1_13_R2.Entity entity = ((CraftWorld) world).getHandle().getEntity(id);
            if (entity != null) {
                return entity.getBukkitEntity();
            }
        }
        return null;
    }

    @Override
    public io.izzel.taboolib.module.nms.impl.Position fromBlockPosition(Object blockPosition) {
        return blockPosition instanceof net.minecraft.server.v1_12_R1.BlockPosition ? new io.izzel.taboolib.module.nms.impl.Position(((net.minecraft.server.v1_12_R1.BlockPosition) blockPosition).getX(), ((net.minecraft.server.v1_12_R1.BlockPosition) blockPosition).getY(), ((net.minecraft.server.v1_12_R1.BlockPosition) blockPosition).getZ()) : null;
    }

    @Override
    public void openSignEditor(Player player, Block block) {
        try {
            ((org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer) player).getHandle().playerConnection.sendPacket(new net.minecraft.server.v1_12_R1.PacketPlayOutOpenSignEditor(new net.minecraft.server.v1_12_R1.BlockPosition(block.getX(), block.getY(), block.getZ())));
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

    private Object toNBTBase(io.izzel.taboolib.module.nms.nbt.NBTBase base) {
        switch (base.getType().getId()) {
            case 1:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagByte.a(base.asByte());
                } else {
                    return new NBTTagByte(base.asByte());
                }
            case 2:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagShort.a(base.asShort());
                } else {
                    return new NBTTagShort(base.asShort());
                }
            case 3:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagInt.a(base.asInt());
                } else {
                    return new NBTTagInt(base.asInt());
                }
            case 4:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagLong.a(base.asLong());
                } else {
                    return new NBTTagLong(base.asLong());
                }
            case 5:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagFloat.a(base.asFloat());
                } else {
                    return new NBTTagFloat(base.asFloat());
                }
            case 6:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagDouble.a(base.asDouble());
                } else {
                    return new NBTTagDouble(base.asDouble());
                }
            case 7:
                return new NBTTagByteArray(base.asByteArray());
            case 11:
                return new NBTTagIntArray(base.asIntArray());
            case 8:
                if (Version.isAfter(Version.v1_15)) {
                    return net.minecraft.server.v1_15_R1.NBTTagString.a(base.asString());
                } else {
                    return new NBTTagString(base.asString());
                }
            case 9:
                Object nmsList = new NBTTagList();
                for (io.izzel.taboolib.module.nms.nbt.NBTBase value : base.asList()) {
                    // 1.14+
                    if (Version.isAfter(Version.v1_14)) {
                        ((net.minecraft.server.v1_14_R1.NBTTagList) nmsList).add(((net.minecraft.server.v1_14_R1.NBTTagList) nmsList).size(), (net.minecraft.server.v1_14_R1.NBTBase) toNBTBase(value));
                    }
                    // 1.13
                    else if (Version.isAfter(Version.v1_13)) {
                        ((net.minecraft.server.v1_13_R2.NBTTagList) nmsList).add((net.minecraft.server.v1_13_R2.NBTBase) toNBTBase(value));
                    }
                    // 1.12-
                    else {
                        ((NBTTagList) nmsList).add((net.minecraft.server.v1_8_R3.NBTBase) toNBTBase(value));
                    }
                }
                return nmsList;
            case 10:
                Object nmsTag = new net.minecraft.server.v1_8_R3.NBTTagCompound();
                for (Map.Entry<String, io.izzel.taboolib.module.nms.nbt.NBTBase> entry : base.asCompound().entrySet()) {
                    ((Map) SimpleReflection.getFieldValue(NBTTagCompound.class, nmsTag, "map")).put(entry.getKey(), toNBTBase(entry.getValue()));
                }
                return nmsTag;
        }
        return null;
    }

    private Object fromNBTBase(Object base) {
        if (base instanceof net.minecraft.server.v1_8_R3.NBTTagCompound) {
            NBTCompound nbtCompound = new NBTCompound();
            for (Map.Entry<String, net.minecraft.server.v1_12_R1.NBTBase> entry : ((Map<String, net.minecraft.server.v1_12_R1.NBTBase>) SimpleReflection.getFieldValue(NBTTagCompound.class, base, "map")).entrySet()) {
                nbtCompound.put(entry.getKey(), (io.izzel.taboolib.module.nms.nbt.NBTBase) fromNBTBase(entry.getValue()));
            }
            return nbtCompound;
        } else if (base instanceof NBTTagList) {
            NBTList nbtList = new NBTList();
            for (Object v : (List) SimpleReflection.getFieldValue(NBTTagList.class, base, "list")) {
                nbtList.add((io.izzel.taboolib.module.nms.nbt.NBTBase) fromNBTBase(v));
            }
            return nbtList;
        } else if (base instanceof NBTTagString) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagString.class, base, "data", ""));
        } else if (base instanceof NBTTagDouble) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagDouble.class, base, "data", 0D));
        } else if (base instanceof NBTTagInt) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagInt.class, base, "data", 0));
        } else if (base instanceof NBTTagFloat) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagFloat.class, base, "data", (float) 0));
        } else if (base instanceof NBTTagShort) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagShort.class, base, "data", (short) 0));
        } else if (base instanceof NBTTagLong) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagLong.class, base, "data", 0L));
        } else if (base instanceof NBTTagByte) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagByte.class, base, "data", (byte) 0D));
        } else if (base instanceof NBTTagIntArray) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagIntArray.class, base, "data", new int[0]));
        } else if (base instanceof NBTTagByteArray) {
            return new io.izzel.taboolib.module.nms.nbt.NBTBase(SimpleReflection.getFieldValue(NBTTagByteArray.class, base, "data", new byte[0]));
        }
        return null;
    }

    @Override
    public boolean inBoundingBox(Entity entity, Vector vector) {
        if (Version.isAfter(Version.v1_14)) {
            return ((org.bukkit.craftbukkit.v1_14_R1.entity.CraftEntity) entity).getHandle().getBoundingBox().c(new net.minecraft.server.v1_14_R1.Vec3D(vector.getX(), vector.getY(), vector.getZ()));
        } else {
            return ((org.bukkit.craftbukkit.v1_12_R1.entity.CraftEntity) entity).getHandle().getBoundingBox().b(new net.minecraft.server.v1_12_R1.Vec3D(vector.getX(), vector.getY(), vector.getZ()));
        }
    }

    @Override
    public Location getLastLocation(ProjectileHitEvent event) {
        Vector vector = event.getEntity().getVelocity().normalize().multiply(0.1);
        Vector vectorEntity = event.getEntity().getLocation().toVector();
        if (event.getHitBlock() != null) {
            double i = 0;
            double length = event.getHitBlock().getLocation().add(0.5, 0.5, 0.5).distance(event.getEntity().getLocation()) * 2;
            while (i < length) {
                Location location = vectorEntity.toLocation(event.getHitBlock().getWorld());
                if (location.getBlock().getLocation().equals(event.getHitBlock().getLocation())) {
                    return location;
                }
                vectorEntity.add(vector);
                i += 0.1;
            }
        }
        if (event.getHitEntity() != null) {
            double i = 0;
            double length = event.getHitEntity().getLocation().distance(event.getEntity().getLocation()) * 2;
            while (i < length) {
                if (inBoundingBox(event.getHitEntity(), vectorEntity)) {
                    return vectorEntity.toLocation(event.getHitEntity().getWorld());
                }
                vectorEntity.add(vector);
                i += 0.1;
            }
        }
        return null;
    }

    @Override
    public void sendPacketEntityDestroy(Player player, int entity) {
        ((CraftPlayer) player).getHandle().playerConnection.sendPacket(new net.minecraft.server.v1_13_R2.PacketPlayOutEntityDestroy(entity));
    }

    @Override
    public void sendPacketEntityTeleport(Player player, int entity, Location location) {
        Object teleport = new net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport();
        SimpleReflection.checkAndSave(net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport.class);
        SimpleReflection.setFieldValue(net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport.class, teleport, "a", entity);
        SimpleReflection.setFieldValue(net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport.class, teleport, "b", location.getX());
        SimpleReflection.setFieldValue(net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport.class, teleport, "c", location.getY());
        SimpleReflection.setFieldValue(net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport.class, teleport, "d", location.getZ());
        ((CraftPlayer) player).getHandle().playerConnection.sendPacket((net.minecraft.server.v1_13_R2.PacketPlayOutEntityTeleport) teleport);
    }

    @Override
    public <T extends Entity> T spawn(Location location, Class<T> entity, Consumer<T> e) {
        if (Version.isAfter(Version.v1_12)) {
            return location.getWorld().spawn(location, entity, e::accept);
        } else {
            Object createEntity = ((CraftWorld) location.getWorld()).createEntity(location, entity);
            try {
                e.accept((T) ((net.minecraft.server.v1_13_R2.Entity) createEntity).getBukkitEntity());
            } catch (Throwable t) {
                t.printStackTrace();
            }
            return ((CraftWorld) location.getWorld()).addEntity((net.minecraft.server.v1_13_R2.Entity) createEntity, CreatureSpawnEvent.SpawnReason.CUSTOM);
        }
    }

    @Override
    public Object ofChatComponentText(String source) {
        return new net.minecraft.server.v1_12_R1.ChatComponentText(source);
    }

    @Override
    public Class<?> asNMS(String name) {
        try {
            return Class.forName("net.minecraft.server." + Version.getBukkitVersion() + "." + name);
        } catch (Throwable ignored) {
            return null;
        }
    }

    @Override
    public Object asEntityType(String name) {
        if (Version.isAfter(Version.v1_14)) {
            return net.minecraft.server.v1_14_R1.EntityTypes.a(name).orElse(null);
        } else {
            return net.minecraft.server.v1_13_R2.EntityTypes.a(name);
        }
    }

    @Override
    public boolean createLight(Block block, Type lightType, int lightLevel) {
        int level = getRawLightLevel(block, lightType);
        setRawLightLevel(block, lightType, lightLevel);
        recalculate(block, lightType);
        return getRawLightLevel(block, lightType) >= level;
    }

    @Override
    public boolean deleteLight(Block block, Type lightType) {
        int level = getRawLightLevel(block, lightType);
        setRawLightLevel(block, lightType, 0);
        recalculate(block, lightType);
        return getRawLightLevel(block, lightType) != level;
    }

    @Override
    public void setRawLightLevel(Block block, Type lightType, int lightLevel) {
        int level = Math.max(Math.min(lightLevel, 15), 0);
        Object world = ((CraftWorld) block.getWorld()).getHandle();
        Object position = new net.minecraft.server.v1_15_R1.BlockPosition(block.getX(), block.getY(), block.getZ());
        if (is11400) {
            sync(((net.minecraft.server.v1_14_R1.WorldServer) world).getChunkProvider().getLightEngine(), lightEngine -> {
                if (lightType == Type.BLOCK) {
                    Object lightEngineLayer = ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.BLOCK);
                    setRawLightLevelBlock(level, position, lightEngineLayer);
                } else if (lightType == Type.SKY) {
                    Object lightEngineLayer = ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.SKY);
                    setRawLightLevelSky(level, position, lightEngineLayer);
                } else {
                    Object lightEngineLayer1 = ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.BLOCK);
                    Object lightEngineLayer2 = ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.SKY);
                    setRawLightLevelBlock(level, position, lightEngineLayer1);
                    setRawLightLevelSky(level, position, lightEngineLayer2);
                }
            });
        } else {
            if (lightType == Type.BLOCK) {
                ((net.minecraft.server.v1_13_R2.WorldServer) world).a(net.minecraft.server.v1_13_R2.EnumSkyBlock.BLOCK, (net.minecraft.server.v1_13_R2.BlockPosition) position, level);
            } else if (lightType == Type.SKY) {
                ((net.minecraft.server.v1_13_R2.WorldServer) world).a(net.minecraft.server.v1_13_R2.EnumSkyBlock.SKY, (net.minecraft.server.v1_13_R2.BlockPosition) position, level);
            } else {
                ((net.minecraft.server.v1_13_R2.WorldServer) world).a(net.minecraft.server.v1_13_R2.EnumSkyBlock.BLOCK, (net.minecraft.server.v1_13_R2.BlockPosition) position, level);
                ((net.minecraft.server.v1_13_R2.WorldServer) world).a(net.minecraft.server.v1_13_R2.EnumSkyBlock.SKY, (net.minecraft.server.v1_13_R2.BlockPosition) position, level);
            }
        }
    }

    @Override
    public int getRawLightLevel(Block block, Type lightType) {
        Object world = ((CraftWorld) block.getWorld()).getHandle();
        Object position = new net.minecraft.server.v1_15_R1.BlockPosition(block.getX(), block.getY(), block.getZ());
        if (lightType == Type.BLOCK) {
            return ((net.minecraft.server.v1_13_R2.WorldServer) world).getBrightness(net.minecraft.server.v1_13_R2.EnumSkyBlock.BLOCK, (net.minecraft.server.v1_13_R2.BlockPosition) position);
        } else if (lightType == Type.SKY) {
            return ((net.minecraft.server.v1_13_R2.WorldServer) world).getBrightness(net.minecraft.server.v1_13_R2.EnumSkyBlock.SKY, (net.minecraft.server.v1_13_R2.BlockPosition) position);
        } else {
            return ((net.minecraft.server.v1_13_R2.WorldServer) world).getLightLevel((net.minecraft.server.v1_13_R2.BlockPosition) position);
        }
    }

    @Override
    public void recalculate(Block block, Type lightType) {
        Object world = ((CraftWorld) block.getWorld()).getHandle();
        Object position = new net.minecraft.server.v1_15_R1.BlockPosition(block.getX(), block.getY(), block.getZ());
        if (is11400) {
            Object lightEngine = ((net.minecraft.server.v1_14_R1.WorldServer) world).getChunkProvider().getLightEngine();
            if (((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a()) {
                sync(lightEngine, e -> {
                    Object[] lightEngineLayers;
                    if (lightType == Type.BLOCK) {
                        ((LightEngineLayer) ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.BLOCK)).a(Integer.MAX_VALUE, true, true);
                    } else if (lightType == Type.SKY) {
                        ((LightEngineLayer) ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.SKY)).a(Integer.MAX_VALUE, true, true);
                    } else {
                        Object b = ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.BLOCK);
                        Object s = ((net.minecraft.server.v1_14_R1.LightEngineThreaded) lightEngine).a(net.minecraft.server.v1_14_R1.EnumSkyBlock.SKY);
                        int maxUpdateCount = Integer.MAX_VALUE;
                        int integer4 = maxUpdateCount / 2;
                        int integer5 = ((LightEngineLayer) b).a(integer4, true, true);
                        int integer6 = maxUpdateCount - integer4 + integer5;
                        int integer7 = ((LightEngineLayer) s).a(integer6, true, true);
                        if (integer5 == 0 && integer7 > 0) {
                            ((LightEngineLayer) b).a(integer7, true, true);
                        }
                    }
                });
            }
        } else {
            if (lightType == Type.SKY) {
                ((net.minecraft.server.v1_13_R2.WorldServer) world).c(net.minecraft.server.v1_13_R2.EnumSkyBlock.SKY, (net.minecraft.server.v1_13_R2.BlockPosition) position);
            } else if (lightType == Type.BLOCK) {
                ((net.minecraft.server.v1_13_R2.WorldServer) world).c(net.minecraft.server.v1_13_R2.EnumSkyBlock.BLOCK, (net.minecraft.server.v1_13_R2.BlockPosition) position);
            } else {
                ((net.minecraft.server.v1_13_R2.WorldServer) world).c(net.minecraft.server.v1_13_R2.EnumSkyBlock.SKY, (net.minecraft.server.v1_13_R2.BlockPosition) position);
                ((net.minecraft.server.v1_13_R2.WorldServer) world).c(net.minecraft.server.v1_13_R2.EnumSkyBlock.BLOCK, (net.minecraft.server.v1_13_R2.BlockPosition) position);
            }
        }
    }

    @Override
    public void update(Chunk chunk) {
        for (Player player : Bukkit.getOnlinePlayers()) {
            Object human = ((org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer) player).getHandle();
            Object chunk1 = ((CraftWorld) player.getWorld()).getHandle().getChunkAt(chunk.getX(), chunk.getZ());
            Object chunk2 = ((net.minecraft.server.v1_8_R3.EntityPlayer) human).world.getChunkAtWorldCoords(((net.minecraft.server.v1_8_R3.EntityPlayer) human).getChunkCoordinates());
            if (distance(chunk2, chunk1) < distance(human)) {
                if (is11400) {
                    TPacketHandler.sendPacket(player, new PacketPlayOutLightUpdate(((net.minecraft.server.v1_14_R1.Chunk) chunk1).getPos(), ((net.minecraft.server.v1_14_R1.Chunk) chunk1).e()));
                } else {
                    TPacketHandler.sendPacket(player, new net.minecraft.server.v1_14_R1.PacketPlayOutMapChunk((net.minecraft.server.v1_14_R1.Chunk) chunk1, 0x1ffff));
                }
            }
        }
    }

    public int distance(Object player) {
        int viewDistance = Bukkit.getViewDistance();
        try {
            int playerViewDistance = ((net.minecraft.server.v1_14_R1.EntityPlayer) player).clientViewDistance;
            if (playerViewDistance < viewDistance) {
                viewDistance = playerViewDistance;
            }
        } catch (Exception ignored) {
        }
        return viewDistance;
    }

    private int distance(Object from, Object to) {
        if (!((net.minecraft.server.v1_14_R1.Chunk) from).world.getWorldData().getName().equals(((net.minecraft.server.v1_14_R1.Chunk) to).world.getWorldData().getName())) {
            return 100;
        }
        double var2 = ((net.minecraft.server.v1_14_R1.Chunk) to).getPos().x - ((net.minecraft.server.v1_14_R1.Chunk) from).getPos().x;
        double var4 = ((net.minecraft.server.v1_14_R1.Chunk) to).getPos().z - ((net.minecraft.server.v1_14_R1.Chunk) from).getPos().z;
        return (int) Math.sqrt(var2 * var2 + var4 * var4);
    }

    public void sync(Object lightEngine, Consumer<Object> task) {
        try {
            Object b = SimpleReflection.getFieldValueChecked(LightEngineThreaded.class, lightEngine, "b", true);
            Object c = SimpleReflection.getFieldValueChecked(ThreadedMailbox.class, b, "c", true);

            int flags;
            long wait = -1L;

            while (!((AtomicInteger) c).compareAndSet(flags = ((AtomicInteger) c).get() & ~2, flags | 2)) {
                if ((flags & 1) != 0) {
                    if (wait == -1) {
                        wait = System.currentTimeMillis() + 3 * 1000;
                        TLogger.getGlobalLogger().info("ThreadedMailbox is closing. Will wait...");
                    } else if (System.currentTimeMillis() >= wait) {
                        TLogger.getGlobalLogger().warn("Failed to enter critical section while ThreadedMailbox is closing");
                    }
                    try {
                        Thread.sleep(50);
                    } catch (InterruptedException ignored) {
                    }
                }
            }

            try {
                task.accept(lightEngine);
            } finally {
                while (!((AtomicInteger) c).compareAndSet(flags = ((AtomicInteger) c).get(), flags & ~2))
                    ;
                SimpleReflection.invokeMethod(ThreadedMailbox.class, b, "f", new Object[0], true);
            }
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

    private void setRawLightLevelBlock(int level, Object position, Object lightEngineLayer) {
        if (level == 0) {
            ((LightEngineBlock) lightEngineLayer).a((BlockPosition) position);
        } else if (((LightEngineLayer) lightEngineLayer).a(SectionPosition.a((net.minecraft.server.v1_14_R1.BlockPosition) position)) != null) {
            try {
                ((LightEngineLayer) lightEngineLayer).a((net.minecraft.server.v1_14_R1.BlockPosition) position, level);
            } catch (Throwable t) {
                t.printStackTrace();
            }
        }
    }

    private void setRawLightLevelSky(int level, Object position, Object lightEngineLayer) {
        if (level == 0) {
            ((LightEngineSky) lightEngineLayer).a((BlockPosition) position);
        } else if (((LightEngineLayer) lightEngineLayer).a(SectionPosition.a((net.minecraft.server.v1_14_R1.BlockPosition) position)) != null) {
            try {
                Object s = SimpleReflection.getFieldValueChecked(LightEngineLayer.class, lightEngineLayer, "c", true);
                if (is11500) {
                    SimpleReflection.invokeMethod(LightEngineStorage.class, s, "d", new Object[0], true);
                } else {
                    SimpleReflection.invokeMethod(LightEngineStorage.class, s, "c", new Object[0], true);
                }
                SimpleReflection.invokeMethod(LightEngineGraph.class, lightEngineLayer, "a", new Object[] {9223372036854775807L, ((net.minecraft.server.v1_14_R1.BlockPosition) position).asLong(), 15 - level, true}, true);
            } catch (Throwable t) {
                t.printStackTrace();
            }
        }
    }
}