func (inv *Inventory) MarshalNbt(tag *nbt.Compound) (err error) {
occupiedSlots := 0
for i := range inv.slots {
if inv.slots[i].Count > 0 {
occupiedSlots++
}
}
itemList := &nbt.List{nbt.TagCompound, make([]nbt.ITag, 0, occupiedSlots)}
for i := range inv.slots {
slot := &inv.slots[i]
if slot.Count > 0 {
slotTag := nbt.NewCompound()
slotTag.Set("Slot", &nbt.Byte{int8(i)})
if err = slot.MarshalNbt(slotTag); err != nil {
return
}
itemList.Value = append(itemList.Value, slotTag)
}
}
tag.Set("Items", itemList)
return nil
}
func (item *Item) UnmarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = item.PointObject.UnmarshalNbt(tag); err != nil {
return
}
itemInfo, ok := tag.Lookup("Item").(*nbt.Compound)
if !ok {
return os.NewError("bad item data")
}
// Grab the basic item data
id, idOk := itemInfo.Lookup("id").(*nbt.Short)
count, countOk := itemInfo.Lookup("Count").(*nbt.Byte)
data, dataOk := itemInfo.Lookup("Damage").(*nbt.Short)
if !idOk || !countOk || !dataOk {
return os.NewError("bad item data")
}
item.Slot = Slot{
ItemTypeId: ItemTypeId(id.Value),
Count: ItemCount(count.Value),
Data: ItemData(data.Value),
}
return nil
}
func (inv *Inventory) UnmarshalNbt(tag *nbt.Compound) (err error) {
itemList, ok := tag.Lookup("Items").(*nbt.List)
if !ok {
return errors.New("bad inventory - not a list")
}
for _, slotTagITag := range itemList.Value {
slotTag, ok := slotTagITag.(*nbt.Compound)
if !ok {
return errors.New("inventory slot not a compound")
}
var slotIdTag *nbt.Byte
if slotIdTag, ok = slotTag.Lookup("Slot").(*nbt.Byte); !ok {
return errors.New("Slot ID not a byte")
}
slotId := SlotId(slotIdTag.Value)
if err = inv.SlotUnmarshalNbt(slotTag, slotId); err != nil {
return
}
}
return nil
}
func (recordPlayer *recordPlayerTileEntity) MarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = recordPlayer.tileEntity.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{"RecordPlayer"})
tag.Set("Record", &nbt.Int{recordPlayer.record})
return nil
}
func (music *musicTileEntity) MarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = music.tileEntity.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{"Music"})
tag.Set("note", &nbt.Byte{int8(music.note)})
return nil
}
func (item *Item) MarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = item.PointObject.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{"Item"})
tag.Set("Item", &nbt.Compound{map[string]nbt.ITag{
"id": &nbt.Short{int16(item.ItemTypeId)},
"Count": &nbt.Byte{int8(item.Count)},
"Damage": &nbt.Short{int16(item.Data)},
}})
return nil
}
func (object *Object) MarshalNbt(tag nbt.Compound) (err error) {
objTypeName, ok := ObjNameByType[object.ObjTypeId]
if !ok {
return errors.New("unknown object type")
}
if err = object.PointObject.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{objTypeName})
// TODO unknown fields
return
}
func (recordPlayer *recordPlayerTileEntity) UnmarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = recordPlayer.tileEntity.UnmarshalNbt(tag); err != nil {
return
}
if recordTag, ok := tag.Lookup("Record").(*nbt.Int); !ok {
return os.NewError("missing or incorrect type for RecordPlayer Record")
} else {
recordPlayer.record = recordTag.Value
}
return nil
}
func (music *musicTileEntity) UnmarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = music.tileEntity.UnmarshalNbt(tag); err != nil {
return
}
if noteTag, ok := tag.Lookup("note").(*nbt.Byte); !ok {
return os.NewError("missing or incorrect type for Music note")
} else {
music.note = NotePitch(noteTag.Value)
}
return nil
}
func (sign *signTileEntity) UnmarshalNbt(tag *nbt.Compound) (err error) {
if err = sign.tileEntity.UnmarshalNbt(tag); err != nil {
return
}
var textTags [4]*nbt.String
var ok bool
if textTags[0], ok = tag.Lookup("Text1").(*nbt.String); !ok {
return errors.New("tile entity sign missing or bad type Text1")
}
if textTags[1], ok = tag.Lookup("Text2").(*nbt.String); !ok {
return errors.New("tile entity sign missing or bad type Text2")
}
if textTags[2], ok = tag.Lookup("Text3").(*nbt.String); !ok {
return errors.New("tile entity sign missing or bad type Text3")
}
if textTags[3], ok = tag.Lookup("Text4").(*nbt.String); !ok {
return errors.New("tile entity sign missing or bad type Text4")
}
for i, textTag := range textTags {
sign.text[i] = textTag.Value
}
return nil
}
func (w *PlayerInventory) MarshalNbt(tag *nbt.Compound) (err os.Error) {
slots := make([]nbt.ITag, 0, 0)
// Add the holding inventory
for i := 0; i < int(w.holding.NumSlots()); i++ {
slot := w.holding.Slot(SlotId(i))
if !slot.IsEmpty() {
slotTag := nbt.NewCompound()
slotTag.Set("Slot", &nbt.Byte{int8(i)})
if err = slot.MarshalNbt(slotTag); err != nil {
return
}
slots = append(slots, slotTag)
}
}
// Add the main inventory
for i := 0; i < int(w.main.NumSlots()); i++ {
slot := w.main.Slot(SlotId(i))
if !slot.IsEmpty() {
slotTag := nbt.NewCompound()
slotTag.Set("Slot", &nbt.Byte{int8(i + playerInvHoldingNum)})
if err = slot.MarshalNbt(slotTag); err != nil {
return
}
slots = append(slots, slotTag)
}
}
// Add the armor inventory
for i := 0; i < int(w.armor.NumSlots()); i++ {
slot := w.armor.Slot(SlotId(i))
if !slot.IsEmpty() {
slotTag := nbt.NewCompound()
slotTag.Set("Slot", &nbt.Byte{int8(i + 100)})
if err = slot.MarshalNbt(slotTag); err != nil {
return
}
slots = append(slots, slotTag)
}
}
tag.Set("Inventory", &nbt.List{nbt.TagCompound, slots})
return nil
}
func (obj *PointObject) UnmarshalNbt(tag *nbt.Compound) (err error) {
// Position within the chunk
if obj.position, err = nbtutil.ReadAbsXyz(tag, "Pos"); err != nil {
return
}
obj.LastSentPosition = *obj.position.ToAbsIntXyz()
// Motion
if obj.velocity, err = nbtutil.ReadAbsVelocity(tag, "Motion"); err != nil {
return
}
obj.LastSentVelocity = *obj.velocity.ToVelocity()
if onGround, ok := tag.Lookup("OnGround").(*nbt.Byte); ok {
obj.onGround = onGround.Value != 0
}
return nil
}
func (mobSpawner *mobSpawnerTileEntity) UnmarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = mobSpawner.tileEntity.UnmarshalNbt(tag); err != nil {
return
}
if entityIdTag, ok := tag.Lookup("EntityId").(*nbt.String); !ok {
return os.NewError("missing or incorrect type for MobSpawner EntityId")
} else {
mobSpawner.entityMobType = entityIdTag.Value
}
if delayTag, ok := tag.Lookup("Delay").(*nbt.Short); !ok {
return os.NewError("missing or incorrect type for MobSpawner Delay")
} else {
mobSpawner.delay = types.Ticks(delayTag.Value)
}
return nil
}
func (object *Object) UnmarshalNbt(tag nbt.Compound) (err error) {
if err = object.PointObject.UnmarshalNbt(tag); err != nil {
return
}
var typeName string
if entityObjectId, ok := tag.Lookup("id").(*nbt.String); !ok {
return errors.New("missing object type id")
} else {
typeName = entityObjectId.Value
}
var ok bool
if object.ObjTypeId, ok = ObjTypeByName[typeName]; !ok {
return errors.New("unknown object type id")
}
// TODO load orientation
return
}
func (inv *FurnaceInventory) UnmarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = inv.Inventory.UnmarshalNbt(tag); err != nil {
return
}
if burnTimeTag, ok := tag.Lookup("BurnTime").(*nbt.Short); !ok {
return os.NewError("Bad or missing BurnTime tag in Furnace NBT")
} else {
inv.burnTime = types.Ticks(burnTimeTag.Value)
// We don't know what the burnTimeMax was, as it is not stored, so taking
// BurnTime for this value as well.
inv.burnTimeMax = inv.burnTime
}
if cookTimeTag, ok := tag.Lookup("CookTime").(*nbt.Short); !ok {
return os.NewError("Bad or missing CookTime tag in Furnace NBT")
} else {
inv.cookTime = types.Ticks(cookTimeTag.Value)
}
return nil
}
func (mobSpawner *mobSpawnerTileEntity) MarshalNbt(tag *nbt.Compound) (err os.Error) {
if err = mobSpawner.tileEntity.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{"MobSpawner"})
tag.Set("EntityId", &nbt.String{mobSpawner.entityMobType})
tag.Set("Delay", &nbt.Short{int16(mobSpawner.delay)})
return nil
}
func (sign *signTileEntity) MarshalNbt(tag *nbt.Compound) (err error) {
if err = sign.tileEntity.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{"Sign"})
tag.Set("Text1", &nbt.String{sign.text[0]})
tag.Set("Text2", &nbt.String{sign.text[1]})
tag.Set("Text3", &nbt.String{sign.text[2]})
tag.Set("Text4", &nbt.String{sign.text[3]})
return nil
}
func (s *Slot) UnmarshalNbt(tag nbt.Compound) (err error) {
var ok bool
var idTag, damageTag *nbt.Short
var countTag *nbt.Byte
if idTag, ok = tag.Lookup("id").(*nbt.Short); !ok {
return errors.New("id tag not Short")
}
if countTag, ok = tag.Lookup("Count").(*nbt.Byte); !ok {
return errors.New("Count tag not Byte")
}
if damageTag, ok = tag.Lookup("Damage").(*nbt.Short); !ok {
return errors.New("Damage tag not Short")
}
s.ItemTypeId = ItemTypeId(idTag.Value)
s.Count = ItemCount(countTag.Value)
s.Data = ItemData(damageTag.Value)
return
}
func (mob *Mob) MarshalNbt(tag nbt.Compound) (err error) {
mobTypeName, ok := MobNameByType[mob.mobType]
if !ok {
return errors.New("unknown mob type")
}
if err = mob.PointObject.MarshalNbt(tag); err != nil {
return
}
tag.Set("id", &nbt.String{mobTypeName})
tag.Set("Rotation", &nbt.List{nbt.TagFloat, []nbt.ITag{
&nbt.Float{float32(mob.look.Yaw)},
&nbt.Float{float32(mob.look.Pitch)},
}})
// TODO
tag.Set("Air", &nbt.Short{0})
tag.Set("AttackTime", &nbt.Short{0})
tag.Set("DeathTime", &nbt.Short{0})
tag.Set("FallDistance", &nbt.Float{0})
tag.Set("Fire", &nbt.Short{0})
tag.Set("Health", &nbt.Short{0})
tag.Set("HurtTime", &nbt.Short{0})
return nil
}
func (inv *CraftingInventory) MarshalNbt(tag nbt.Compound) (err error) {
tag.Set("id", &nbt.String{"Workbench"})
return inv.Inventory.MarshalNbt(tag)
}
func (inv *ChestInventory) MarshalNbt(tag *nbt.Compound) (err error) {
tag.Set("id", &nbt.String{"Furnace"})
return inv.Inventory.MarshalNbt(tag)
}
func (inv *DispenserInventory) MarshalNbt(tag *nbt.Compound) (err os.Error) {
tag.Set("id", &nbt.String{"Trap"})
return inv.Inventory.MarshalNbt(tag)
}
// UnmarshalNbt unpacks the player data from their persistantly stored NBT
// data. It must only be called before Player.Run().
func (player *Player) UnmarshalNbt(tag *nbt.Compound) (err error) {
if player.position, err = nbtutil.ReadAbsXyz(tag, "Pos"); err != nil {
return
}
if player.look, err = nbtutil.ReadLookDegrees(tag, "Rotation"); err != nil {
return
}
health, err := nbtutil.ReadShort(tag, "Health")
if err != nil {
return
}
player.health = Health(health)
if err = player.inventory.UnmarshalNbt(tag.Lookup("Inventory")); err != nil {
return
}
if player.onGround, err = nbtutil.ReadByte(tag, "OnGround"); err != nil {
return
}
if player.dimension, err = nbtutil.ReadInt(tag, "Dimension"); err != nil {
return
}
if player.sleeping, err = nbtutil.ReadByte(tag, "Sleeping"); err != nil {
return
}
if player.fallDistance, err = nbtutil.ReadFloat(tag, "FallDistance"); err != nil {
return
}
if player.sleepTimer, err = nbtutil.ReadShort(tag, "SleepTimer"); err != nil {
return
}
if player.attackTime, err = nbtutil.ReadShort(tag, "AttackTime"); err != nil {
return
}
if player.deathTime, err = nbtutil.ReadShort(tag, "DeathTime"); err != nil {
return
}
if player.motion, err = nbtutil.ReadAbsVelocity(tag, "Motion"); err != nil {
return
}
if player.hurtTime, err = nbtutil.ReadShort(tag, "HurtTime"); err != nil {
return
}
if player.air, err = nbtutil.ReadShort(tag, "Air"); err != nil {
return
}
if player.fire, err = nbtutil.ReadShort(tag, "Fire"); err != nil {
return
}
return nil
}
func (inv *FurnaceInventory) MarshalNbt(tag *nbt.Compound) (err os.Error) {
tag.Set("id", &nbt.String{"Furnace"})
tag.Set("BurnTime", &nbt.Short{int16(inv.burnTime)})
tag.Set("CookTime", &nbt.Short{int16(inv.cookTime)})
return inv.Inventory.MarshalNbt(tag)
}
// MarshalNbt packs the player data into a nbt.Compound so it can be written to
// persistant storage.
func (player *Player) MarshalNbt(tag *nbt.Compound) (err error) {
if err = player.inventory.MarshalNbt(tag); err != nil {
return
}
tag.Set("OnGround", &nbt.Byte{player.onGround})
tag.Set("Dimension", &nbt.Int{player.dimension})
tag.Set("Sleeping", &nbt.Byte{player.sleeping})
tag.Set("FallDistance", &nbt.Float{player.fallDistance})
tag.Set("SleepTimer", &nbt.Short{player.sleepTimer})
tag.Set("AttackTime", &nbt.Short{player.attackTime})
tag.Set("DeathTime", &nbt.Short{player.deathTime})
tag.Set("Motion", &nbt.List{nbt.TagDouble, []nbt.ITag{
&nbt.Double{float64(player.motion.X)},
&nbt.Double{float64(player.motion.Y)},
&nbt.Double{float64(player.motion.Z)},
}})
tag.Set("HurtTime", &nbt.Short{player.hurtTime})
tag.Set("Air", &nbt.Short{player.air})
tag.Set("Rotation", &nbt.List{nbt.TagFloat, []nbt.ITag{
&nbt.Float{float32(player.look.Yaw)},
&nbt.Float{float32(player.look.Pitch)},
}})
tag.Set("Pos", &nbt.List{nbt.TagDouble, []nbt.ITag{
&nbt.Double{float64(player.position.X)},
&nbt.Double{float64(player.position.Y)},
&nbt.Double{float64(player.position.Z)},
}})
tag.Set("Fire", &nbt.Short{player.fire})
tag.Set("Health", &nbt.Short{int16(player.health)})
return nil
}
func (mob *Mob) UnmarshalNbt(tag nbt.Compound) (err error) {
if err = mob.PointObject.UnmarshalNbt(tag); err != nil {
return
}
if mob.look, err = nbtutil.ReadLookDegrees(tag, "Rotation"); err != nil {
return
}
// TODO
_ = tag.Lookup("Air").(*nbt.Short).Value
_ = tag.Lookup("AttackTime").(*nbt.Short).Value
_ = tag.Lookup("DeathTime").(*nbt.Short).Value
_ = tag.Lookup("FallDistance").(*nbt.Float).Value
_ = tag.Lookup("Fire").(*nbt.Short).Value
_ = tag.Lookup("Health").(*nbt.Short).Value
_ = tag.Lookup("HurtTime").(*nbt.Short).Value
return nil
}
func (s *Slot) MarshalNbt(tag nbt.Compound) (err error) {
tag.Set("id", &nbt.Short{int16(s.ItemTypeId)})
tag.Set("Count", &nbt.Byte{int8(s.Count)})
tag.Set("Damage", &nbt.Short{int16(s.Data)})
return nil
}