cn.nukkit.entity.data.EntityMetadata Java Examples

@Override
public void spawnTo(Player player) {
    AddEntityPacket packet = new AddEntityPacket();
    packet.type = getNetworkId();
    packet.entityUniqueId = this.getId();
    packet.entityRuntimeId = getId();
    packet.x = (float) this.x;
    packet.y = (float) this.y;
    packet.z = (float) this.z;
    packet.speedX = (float) this.motionX;
    packet.speedY = (float) this.motionY;
    packet.speedZ = (float) this.motionZ;
    packet.metadata = new EntityMetadata();
    player.dataPacket(packet);
    //this.sendData(player);

    super.spawnTo(player);
}
 

private void createBossEntity() {
    AddEntityPacket pkAdd = new AddEntityPacket();
    pkAdd.type = EntityCreeper.NETWORK_ID;
    pkAdd.entityUniqueId = bossBarId;
    pkAdd.entityRuntimeId = bossBarId;
    pkAdd.x = (float) player.x;
    pkAdd.y = (float) -10; // Below the bedrock
    pkAdd.z = (float) player.z;
    pkAdd.speedX = 0;
    pkAdd.speedY = 0;
    pkAdd.speedZ = 0;
    pkAdd.metadata = new EntityMetadata()
            // Default Metadata tags
            .putLong(Entity.DATA_FLAGS, 0)
            .putShort(Entity.DATA_AIR, 400)
            .putShort(Entity.DATA_MAX_AIR, 400)
            .putLong(Entity.DATA_LEAD_HOLDER_EID, -1)
            .putString(Entity.DATA_NAMETAG, text) // Set the entity name
            .putFloat(Entity.DATA_SCALE, 0); // And make it invisible

    player.dataPacket(pkAdd);
}
 

@Override
public void spawnTo(Player player) {
    AddEntityPacket packet = new AddEntityPacket();
    packet.type = getNetworkId();
    packet.entityUniqueId = this.getId();
    packet.entityRuntimeId = getId();
    packet.x = (float) this.x;
    packet.y = (float) this.y;
    packet.z = (float) this.z;
    packet.speedX = (float) this.motionX;
    packet.speedY = (float) this.motionY;
    packet.speedZ = (float) this.motionZ;
    packet.metadata = new EntityMetadata();
    player.dataPacket(packet);
    //this.sendData(player);

    super.spawnTo(player);
}
 

private void createBossEntity() {
    AddEntityPacket pkAdd = new AddEntityPacket();
    pkAdd.type = EntityCreeper.NETWORK_ID;
    pkAdd.entityUniqueId = bossBarId;
    pkAdd.entityRuntimeId = bossBarId;
    pkAdd.x = (float) player.x;
    pkAdd.y = (float) -10; // Below the bedrock
    pkAdd.z = (float) player.z;
    pkAdd.speedX = 0;
    pkAdd.speedY = 0;
    pkAdd.speedZ = 0;
    pkAdd.metadata = new EntityMetadata()
            // Default Metadata tags
            .putLong(Entity.DATA_FLAGS, 0)
            .putShort(Entity.DATA_AIR, 400)
            .putShort(Entity.DATA_MAX_AIR, 400)
            .putLong(Entity.DATA_LEAD_HOLDER_EID, -1)
            .putString(Entity.DATA_NAMETAG, text) // Set the entity name
            .putFloat(Entity.DATA_SCALE, 0); // And make it invisible

    player.dataPacket(pkAdd);
}
 

public void sendData(Player player, EntityMetadata data) {
    SetEntityDataPacket pk = new SetEntityDataPacket();
    pk.entityRuntimeId = this.getId();
    pk.metadata = data == null ? this.dataProperties : data;

    player.dataPacket(pk);
}
 

public void sendData(Player[] players, EntityMetadata data) {
    SetEntityDataPacket pk = new SetEntityDataPacket();
    pk.entityRuntimeId = this.getId();
    pk.metadata = data == null ? this.dataProperties : data;

    for (Player player : players) {
        if (player == this) {
            continue;
        }
        player.dataPacket(pk.clone());
    }
    if (this instanceof Player) {
        ((Player) this).dataPacket(pk);
    }
}
 

public boolean setDataProperty(EntityData data, boolean send) {
    if (!Objects.equals(data, this.getDataProperties().get(data.getId()))) {
        this.getDataProperties().put(data);
        if (send)
            this.sendData(this.hasSpawned.values().stream().toArray(Player[]::new), new EntityMetadata().put(this.dataProperties.get(data.getId())));
        return true;
    }
    return false;
}
 

private static EntityMetadata replaceMetadata(EntityMetadata data, long from, long to) {
    boolean changed = false;

    for (Integer key : replaceMetadata) {
        try {
            EntityData ed = data.get(key);

            if (ed == null) {
                continue;
            }

            if (ed.getType() != Entity.DATA_TYPE_LONG) {
                MainLogger.getLogger().info("Wrong entity data type (" + key + ") expected 'Long' got '" + dataTypeToString(ed.getType()) + "'");
                continue;
            }

            long value = ((LongEntityData) ed).getData();

            if (value == from) {
                if (!changed) {
                    data = cloneMetadata(data);
                    changed = true;
                }

                data.putLong(key, to);
            }
        } catch (Exception e) {
            MainLogger.getLogger().error("Exception while replacing metadata '" + key + "'", e);
        }
    }

    if (!changed) return null;

    return data;
}
 

private static EntityMetadata cloneMetadata(EntityMetadata data) {
    EntityMetadata newData = new EntityMetadata();

    for (EntityData value : data.getMap().values()) {
        newData.put(value);
    }

    return newData;
}
 

public EntityMetadata getDataProperties() {
    return this.dataProperties;
}
 

public static byte[] writeMetadata(EntityMetadata metadata) {
    BinaryStream stream = new BinaryStream();
    Map<Integer, EntityData> map = metadata.getMap();
    stream.putUnsignedVarInt(map.size());
    for (int id : map.keySet()) {
        EntityData d = map.get(id);
        stream.putUnsignedVarInt(id);
        stream.putUnsignedVarInt(d.getType());
        switch (d.getType()) {
            case Entity.DATA_TYPE_BYTE:
                stream.putByte(((ByteEntityData) d).getData().byteValue());
                break;
            case Entity.DATA_TYPE_SHORT:
                stream.putLShort(((ShortEntityData) d).getData());
                break;
            case Entity.DATA_TYPE_INT:
                stream.putVarInt(((IntEntityData) d).getData());
                break;
            case Entity.DATA_TYPE_FLOAT:
                stream.putLFloat(((FloatEntityData) d).getData());
                break;
            case Entity.DATA_TYPE_STRING:
                String s = ((StringEntityData) d).getData();
                stream.putUnsignedVarInt(s.getBytes(StandardCharsets.UTF_8).length);
                stream.put(s.getBytes(StandardCharsets.UTF_8));
                break;
            case Entity.DATA_TYPE_SLOT:
                SlotEntityData slot = (SlotEntityData) d;
                stream.putLShort(slot.blockId);
                stream.putByte((byte) slot.meta);
                stream.putLShort(slot.count);
                break;
            case Entity.DATA_TYPE_POS:
                IntPositionEntityData pos = (IntPositionEntityData) d;
                stream.putVarInt(pos.x);
                stream.putByte((byte) pos.y);
                stream.putVarInt(pos.z);
                break;
            case Entity.DATA_TYPE_LONG:
                stream.putVarLong(((LongEntityData) d).getData());
                break;
            case Entity.DATA_TYPE_VECTOR3F:
                Vector3fEntityData v3data = (Vector3fEntityData) d;
                stream.putLFloat(v3data.x);
                stream.putLFloat(v3data.y);
                stream.putLFloat(v3data.z);
                break;
        }
    }
    return stream.getBuffer();
}
 

private void updateBossEntityNameTag() {
    SetEntityDataPacket pk = new SetEntityDataPacket();
    pk.eid = this.bossBarId;
    pk.metadata = new EntityMetadata().putString(Entity.DATA_NAMETAG, this.text);
    player.dataPacket(pk);
}
 

private void updateBossEntityNameTag() {
    SetEntityDataPacket pk = new SetEntityDataPacket();
    pk.eid = this.bossBarId;
    pk.metadata = new EntityMetadata().putString(Entity.DATA_NAMETAG, this.text);
    player.dataPacket(pk);
}