com.nukkitx.network.util.Preconditions Java Examples

public static InventorySource readInventorySource(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    InventorySource.Type type = InventorySource.Type.byId(VarInts.readUnsignedInt(buffer));

    switch (type) {
        case CONTAINER:
            int containerId = VarInts.readInt(buffer);
            return InventorySource.fromContainerWindowId(containerId);
        case GLOBAL:
            return InventorySource.fromGlobalInventory();
        case WORLD_INTERACTION:
            InventorySource.Flag flag = InventorySource.Flag.values()[VarInts.readUnsignedInt(buffer)];
            return InventorySource.fromWorldInteraction(flag);
        case CREATIVE:
            return InventorySource.fromCreativeInventory();
        case UNTRACKED_INTERACTION_UI:
            containerId = VarInts.readInt(buffer);
            return InventorySource.fromUntrackedInteractionUI(containerId);
        case NON_IMPLEMENTED_TODO:
            containerId = VarInts.readInt(buffer);
            return InventorySource.fromNonImplementedTodo(containerId);
        default:
            return InventorySource.fromInvalid();
    }
}
 

public static InventorySource readInventorySource(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    InventorySource.Type type = InventorySource.Type.byId(VarInts.readUnsignedInt(buffer));

    switch (type) {
        case CONTAINER:
            int containerId = VarInts.readInt(buffer);
            return InventorySource.fromContainerWindowId(containerId);
        case GLOBAL:
            return InventorySource.fromGlobalInventory();
        case WORLD_INTERACTION:
            InventorySource.Flag flag = InventorySource.Flag.values()[VarInts.readUnsignedInt(buffer)];
            return InventorySource.fromWorldInteraction(flag);
        case CREATIVE:
            return InventorySource.fromCreativeInventory();
        case UNTRACKED_INTERACTION_UI:
            containerId = VarInts.readInt(buffer);
            return InventorySource.fromUntrackedInteractionUI(containerId);
        case NON_IMPLEMENTED_TODO:
            containerId = VarInts.readInt(buffer);
            return InventorySource.fromNonImplementedTodo(containerId);
        default:
            return InventorySource.fromInvalid();
    }
}
 

public static GameRuleData readGameRule(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    String name = BedrockUtils.readString(buffer);
    int type = VarInts.readUnsignedInt(buffer);

    switch (type) {
        case 1:
            return new GameRuleData<>(name, buffer.readBoolean());
        case 2:
            return new GameRuleData<>(name, VarInts.readUnsignedInt(buffer));
        case 3:
            return new GameRuleData<>(name, buffer.readFloatLE());
    }
    throw new IllegalStateException("Invalid gamerule type received");
}
 

public static void writeInventorySource(ByteBuf buffer, InventorySource inventorySource) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(inventorySource, "inventorySource");

    VarInts.writeUnsignedInt(buffer, inventorySource.getType().id());

    switch (inventorySource.getType()) {
        case CONTAINER:
        case UNTRACKED_INTERACTION_UI:
        case NON_IMPLEMENTED_TODO:
            VarInts.writeInt(buffer, inventorySource.getContainerId());
            break;
        case WORLD_INTERACTION:
            VarInts.writeUnsignedInt(buffer, inventorySource.getFlag().ordinal());
            break;
    }
}
 

public static GameRuleData readGameRule(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    String name = BedrockUtils.readString(buffer);
    int type = VarInts.readUnsignedInt(buffer);

    switch (type) {
        case 1:
            return new GameRuleData<>(name, buffer.readBoolean());
        case 2:
            return new GameRuleData<>(name, VarInts.readUnsignedInt(buffer));
        case 3:
            return new GameRuleData<>(name, buffer.readFloatLE());
    }
    throw new IllegalStateException("Invalid gamerule type received");
}
 

public static void writeInventorySource(ByteBuf buffer, InventorySource inventorySource) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(inventorySource, "inventorySource");

    VarInts.writeUnsignedInt(buffer, inventorySource.getType().id());

    switch (inventorySource.getType()) {
        case CONTAINER:
        case UNTRACKED_INTERACTION_UI:
        case NON_IMPLEMENTED_TODO:
            VarInts.writeInt(buffer, inventorySource.getContainerId());
            break;
        case WORLD_INTERACTION:
            VarInts.writeUnsignedInt(buffer, inventorySource.getFlag().ordinal());
            break;
    }
}
 

public static List<ResourcePacksInfoPacket.Entry> readPacksInfoEntries(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    List<ResourcePacksInfoPacket.Entry> entries = new ObjectArrayList<>();
    int length = buffer.readUnsignedShortLE();
    for (int i = 0; i < length; i++) {
        String packId = readString(buffer);
        String packVersion = readString(buffer);
        long packSize = buffer.readLongLE();
        String encryptionKey = readString(buffer);
        String subpackName = readString(buffer);
        String contentId = readString(buffer);
        entries.add(new ResourcePacksInfoPacket.Entry(packId, packVersion, packSize, encryptionKey, subpackName, contentId, false));
    }
    return entries;
}
 

public static List<ResourcePacksInfoPacket.Entry> readPacksInfoEntries(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    List<ResourcePacksInfoPacket.Entry> entries = new ObjectArrayList<>();
    int length = buffer.readUnsignedShortLE();
    for (int i = 0; i < length; i++) {
        String packId = readString(buffer);
        String packVersion = readString(buffer);
        long packSize = buffer.readLongLE();
        String encryptionKey = readString(buffer);
        String subpackName = readString(buffer);
        String contentId = readString(buffer);
        entries.add(new ResourcePacksInfoPacket.Entry(packId, packVersion, packSize, encryptionKey, subpackName, contentId, false));
    }
    return entries;
}
 

public static GameRuleData readGameRule(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    String name = BedrockUtils.readString(buffer);
    int type = VarInts.readUnsignedInt(buffer);

    switch (type) {
        case 1:
            return new GameRuleData<>(name, buffer.readBoolean());
        case 2:
            return new GameRuleData<>(name, VarInts.readUnsignedInt(buffer));
        case 3:
            return new GameRuleData<>(name, buffer.readFloatLE());
    }
    throw new IllegalStateException("Invalid gamerule type received");
}
 

public static CommandOriginData readCommandOriginData(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    CommandOriginData.Origin origin = CommandOriginData.Origin.values()[VarInts.readUnsignedInt(buffer)];
    UUID uuid = readUuid(buffer);
    String requestId = readString(buffer);
    long varLong = -1;
    if (origin == CommandOriginData.Origin.DEV_CONSOLE || origin == CommandOriginData.Origin.TEST) {
        varLong = VarInts.readLong(buffer);
    }
    return new CommandOriginData(origin, uuid, requestId, varLong);
}
 

public static void writeEntityLink(ByteBuf buffer, EntityLink entityLink) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(entityLink, "entityLink");

    VarInts.writeLong(buffer, entityLink.getFrom());
    VarInts.writeLong(buffer, entityLink.getTo());
    buffer.writeByte(entityLink.getType().ordinal());
    buffer.writeBoolean(entityLink.isImmediate());
}
 

public static Vector3i readBlockPosition(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    int x = VarInts.readInt(buffer);
    int y = VarInts.readUnsignedInt(buffer);
    int z = VarInts.readInt(buffer);

    return Vector3i.from(x, y, z);
}
 

public static void writePacksInfoEntries(ByteBuf buffer, Collection<ResourcePacksInfoPacket.Entry> packInfoEntries) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(packInfoEntries, "packInfoEntries");
    buffer.writeShortLE(packInfoEntries.size());
    for (ResourcePacksInfoPacket.Entry packInfoEntry : packInfoEntries) {
        writeString(buffer, packInfoEntry.getPackId());
        writeString(buffer, packInfoEntry.getPackVersion());
        buffer.writeLongLE(packInfoEntry.getPackSize());
        writeString(buffer, packInfoEntry.getEncryptionKey());
        writeString(buffer, packInfoEntry.getSubpackName());
        writeString(buffer, packInfoEntry.getContentId());
        buffer.writeBoolean(packInfoEntry.isScripting());
    }
}
 

public static Vector3f readVector3f(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    float x = buffer.readFloatLE();
    float y = buffer.readFloatLE();
    float z = buffer.readFloatLE();
    return Vector3f.from(x, y, z);
}
 

public static CommandOriginData readCommandOriginData(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    CommandOriginData.Origin origin = CommandOriginData.Origin.values()[VarInts.readUnsignedInt(buffer)];
    UUID uuid = readUuid(buffer);
    String requestId = readString(buffer);
    long varLong = -1;
    if (origin == CommandOriginData.Origin.DEV_CONSOLE || origin == CommandOriginData.Origin.TEST) {
        varLong = VarInts.readLong(buffer);
    }
    return new CommandOriginData(origin, uuid, requestId, varLong);
}
 

public static void writeStructureSettings(ByteBuf buffer, StructureSettings structureSettings) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(structureSettings, "structureSettings");

    BedrockUtils.writeString(buffer, structureSettings.getPaletteName());
    buffer.writeBoolean(structureSettings.isIgnoreEntities());
    buffer.writeBoolean(structureSettings.isIgnoreBlocks());
    BedrockUtils.writeBlockPosition(buffer, structureSettings.getStructureSize());
    BedrockUtils.writeBlockPosition(buffer, structureSettings.getStructureOffset());
    VarInts.writeLong(buffer, structureSettings.getLastTouchedByEntityId());
    buffer.writeByte(structureSettings.getRotation());
    buffer.writeByte(structureSettings.getMirror());
    buffer.writeFloatLE(structureSettings.getIntegrityValue());
    VarInts.writeUnsignedInt(buffer, structureSettings.getIntegritySeed());
}
 

public static AsciiString readVarIntAsciiString(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    int length = VarInts.readUnsignedInt(buffer);
    byte[] bytes = new byte[length];
    buffer.readBytes(bytes);
    return new AsciiString(bytes);
}
 

public static void writePacksInfoEntries(ByteBuf buffer, Collection<ResourcePacksInfoPacket.Entry> packInfoEntries) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(packInfoEntries, "packInfoEntries");
    buffer.writeShortLE(packInfoEntries.size());
    for (ResourcePacksInfoPacket.Entry packInfoEntry : packInfoEntries) {
        writeString(buffer, packInfoEntry.getPackId());
        writeString(buffer, packInfoEntry.getPackVersion());
        buffer.writeLongLE(packInfoEntry.getPackSize());
        writeString(buffer, packInfoEntry.getEncryptionKey());
        writeString(buffer, packInfoEntry.getSubpackName());
        writeString(buffer, packInfoEntry.getContentId());
    }
}
 

public static void writeEntityAttribute(ByteBuf buffer, Attribute attribute) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(attribute, "attribute");

    BedrockUtils.writeString(buffer, attribute.getName());
    buffer.writeFloatLE(attribute.getMinimum());
    buffer.writeFloatLE(attribute.getMaximum());
    buffer.writeFloatLE(attribute.getValue());
}
 

public static Vector3i readBlockPosition(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    int x = VarInts.readInt(buffer);
    int y = VarInts.readUnsignedInt(buffer);
    int z = VarInts.readInt(buffer);

    return Vector3i.from(x, y, z);
}
 

public static EntityLink readEntityLink(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    long from = VarInts.readLong(buffer);
    long to = VarInts.readLong(buffer);
    int type = buffer.readUnsignedByte();
    boolean immediate = buffer.readBoolean();

    return new EntityLink(from, to, EntityLink.Type.values()[type], immediate);
}
 

public static AsciiString readVarIntAsciiString(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    int length = VarInts.readUnsignedInt(buffer);
    byte[] bytes = new byte[length];
    buffer.readBytes(bytes);
    return new AsciiString(bytes);
}
 

public static Vector3i readVector3i(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    int x = VarInts.readInt(buffer);
    int y = VarInts.readInt(buffer);
    int z = VarInts.readInt(buffer);

    return Vector3i.from(x, y, z);
}
 

public static void writeVector3i(ByteBuf buffer, Vector3i vector3i) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(vector3i, "vector3i");
    VarInts.writeInt(buffer, vector3i.getX());
    VarInts.writeInt(buffer, vector3i.getY());
    VarInts.writeInt(buffer, vector3i.getZ());
}
 

public static Vector3i readVector3i(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    int x = VarInts.readInt(buffer);
    int y = VarInts.readInt(buffer);
    int z = VarInts.readInt(buffer);

    return Vector3i.from(x, y, z);
}
 

public static void writeVector3f(ByteBuf buffer, Vector3f vector3f) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(vector3f, "vector3f");
    buffer.writeFloatLE(vector3f.getX());
    buffer.writeFloatLE(vector3f.getY());
    buffer.writeFloatLE(vector3f.getZ());
}
 

public static void writeCommandOriginData(ByteBuf buffer, CommandOriginData originData) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(originData, "commandOriginData");
    VarInts.writeUnsignedInt(buffer, originData.getOrigin().ordinal());
    writeUuid(buffer, originData.getUuid());
    writeString(buffer, originData.getRequestId());
    if (originData.getOrigin() == CommandOriginData.Origin.DEV_CONSOLE || originData.getOrigin() == CommandOriginData.Origin.TEST) {
        VarInts.writeLong(buffer, originData.getEvent());
    }
}
 

public static void writePackInstanceEntry(ByteBuf buffer, ResourcePackStackPacket.Entry packInstanceEntry) {
    Preconditions.checkNotNull(buffer, "buffer");
    Preconditions.checkNotNull(packInstanceEntry, "packInstanceEntry");

    writeString(buffer, packInstanceEntry.getPackId().toString());
    writeString(buffer, packInstanceEntry.getPackVersion());
    writeString(buffer, packInstanceEntry.getSubpackName());
}
 

public static Vector3f readVector3f(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");
    float x = buffer.readFloatLE();
    float y = buffer.readFloatLE();
    float z = buffer.readFloatLE();
    return Vector3f.from(x, y, z);
}
 

public static AsciiString readVarIntAsciiString(ByteBuf buffer) {
    Preconditions.checkNotNull(buffer, "buffer");

    int length = VarInts.readUnsignedInt(buffer);
    byte[] bytes = new byte[length];
    buffer.readBytes(bytes);
    return new AsciiString(bytes);
}