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pk.NBT() support parameter optionalTagName

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This commit is contained in:
Tnze
2021-05-24 12:49:48 +08:00
parent cfde0f6e79
commit 7d4f4db36a
2 changed files with 36 additions and 40 deletions
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64
net/packet/packet_test.go
View File

@ -4,7 +4,6 @@ import (
"bytes"
_ "embed"
"fmt"
"github.com/Tnze/go-mc/nbt"
"testing"
pk "github.com/Tnze/go-mc/net/packet"
@ -146,7 +145,6 @@ func ExamplePacket_Scan_joinGame() {
}
func ExampleMarshal_setSlot() {
var buf bytes.Buffer
type Enchantment struct {
ID int16 `nbt:"id"`
Lvl int16 `nbt:"lvl"`
@ -155,42 +153,34 @@ func ExampleMarshal_setSlot() {
StoredEnchantments []Enchantment
Unbreakable int32
}
for _, pf := range [][]pk.FieldEncoder{
{
pk.Byte(0),
pk.Short(5),
pk.Boolean(false),
pk.Opt{Has: false},
},
{
pk.Byte(0),
pk.Short(5),
pk.Boolean(true),
pk.Opt{Has: true, Field: pk.Tuple{
pk.VarInt(0x01), // ItemID
pk.Byte(1), // ItemCount
pk.Byte(nbt.TagEnd), // NBT, 0 when this is no data
}},
},
{
pk.Byte(0),
pk.Short(5),
pk.Boolean(true),
pk.Opt{Has: true, Field: pk.Tuple{
pk.VarInt(0x01), // ItemID
pk.Byte(1), // ItemCount
pk.NBT(SlotNBT{
StoredEnchantments: []Enchantment{
{ID: 01, Lvl: 02},
{ID: 03, Lvl: 04},
},
Unbreakable: 1, // true
}), // NBT
}},
},
for _, pf := range []struct {
WindowID byte
Slot int16
Present bool
ItemID int
ItemCount byte
NBT interface{}
}{
{WindowID: 0, Slot: 5, Present: false},
{WindowID: 0, Slot: 5, Present: true, ItemID: 0x01, ItemCount: 1, NBT: pk.Byte(0)},
{WindowID: 0, Slot: 5, Present: true, ItemID: 0x01, ItemCount: 1, NBT: pk.NBT(SlotNBT{
StoredEnchantments: []Enchantment{
{ID: 01, Lvl: 02},
{ID: 03, Lvl: 04},
},
Unbreakable: 1, // true
})},
} {
buf.Reset()
p := pk.Marshal(0x15, pf...)
p := pk.Marshal(0x15,
pk.Byte(pf.WindowID),
pk.Short(pf.Slot),
pk.Boolean(pf.Present),
pk.Opt{Has: pf.Present, Field: pk.Tuple{
pk.VarInt(pf.ItemID),
pk.Byte(pf.ItemCount),
pf.NBT,
}},
)
fmt.Printf("%02X % 02X\n", p.ID, p.Data)
}
// Output:

12
net/packet/types.go
View File

@ -426,16 +426,22 @@ func (d *Double) ReadFrom(r io.Reader) (n int64, err error) {
}
//NBT encode a value as Named Binary Tag
func NBT(v interface{}) Field {
func NBT(v interface{}, optionalTagName ...string) Field {
if len(optionalTagName) > 0 {
return nbtField{V: v, FieldName: optionalTagName[0]}
}
return nbtField{V: v}
}
type nbtField struct{ V interface{} }
type nbtField struct {
V interface{}
FieldName string
}
// Encode a nbtField
func (n nbtField) WriteTo(w io.Writer) (int64, error) {
var buf bytes.Buffer
if err := nbt.NewEncoder(&buf).Encode(n.V); err != nil {
if err := nbt.NewEncoder(&buf).Encode(n.V, n.FieldName); err != nil {
return 0, err
}
return buf.WriteTo(w)