Handle screen open/send content

bot/screen/inventory.go

@@ -1,8 +1,16 @@
 package screen
 
+import (
+	"fmt"
+
+	"github.com/Tnze/go-mc/data/item"
+	"github.com/Tnze/go-mc/nbt"
+)
+
 type Inventory struct {
 }
 
-func (inv Inventory) SetSlot(i int, id int32, count byte, NBT interface{}) {
-	panic("implement me")
+func (inv Inventory) SetSlot(i int, id int32, count byte, NBT nbt.RawMessage) {
+	// TODO: accept inv data
+	fmt.Printf("Inventory[%d] = minecraft:%v * %d\n", i, item.ByID[item.ID(id)].Name, count)
 }

bot/screen/screen.go

@@ -6,6 +6,7 @@ import (
 	"github.com/Tnze/go-mc/bot"
 	"github.com/Tnze/go-mc/chat"
 	"github.com/Tnze/go-mc/data/packetid"
+	"github.com/Tnze/go-mc/nbt"
 	pk "github.com/Tnze/go-mc/net/packet"
 )
 
@@ -18,6 +19,7 @@ func NewManager(c *bot.Client) *Manager {
 	m.Screens[0] = &Inventory{}
 	c.Events.AddListener(
 		bot.PacketHandler{Priority: 64, ID: packetid.OpenWindow, F: m.onOpenScreen},
+		bot.PacketHandler{Priority: 64, ID: packetid.WindowItems, F: m.onSetContentPacket},
 	)
 	return m
 }
@@ -60,7 +62,7 @@ type slot struct {
 	present pk.Boolean
 	id      pk.VarInt
 	count   pk.Byte
-	nbt     interface{}
+	nbt     nbt.RawMessage
 }
 
 func (s *slot) ReadFrom(r io.Reader) (n int64, err error) {
@@ -74,7 +76,7 @@ func (s *slot) ReadFrom(r io.Reader) (n int64, err error) {
 }
 
 type Container interface {
-	SetSlot(i int, id int32, count byte, NBT interface{})
+	SetSlot(i int, id int32, count byte, NBT nbt.RawMessage)
 }
 
 type Error struct {

bot/screen/type.go

@@ -0,0 +1,29 @@
+package screen
+
+type Info struct {
+	Name       string
+	Start, End int // Player inventory
+	Slots      int
+}
+
+func (i Info) PlayerInvStart() int {
+	return i.Start
+}
+
+func (i Info) PlayerInvEnd() int {
+	return i.End
+}
+
+func (i Info) HotbarIdx(place int) int {
+	return i.End - (8 - place)
+}
+
+var ByType = map[int]Info{
+	-1: {Name: "inventory", Start: 9, End: 44, Slots: 46},
+	0:  {Name: "generic_9x1", Start: 1 * 9, End: 1*9 + 35, Slots: 1*9 + 36},
+	1:  {Name: "generic_9x2", Start: 2 * 9, End: 2*9 + 35, Slots: 2*9 + 36},
+	2:  {Name: "generic_9x3", Start: 3 * 9, End: 3*9 + 35, Slots: 3*9 + 36},
+	3:  {Name: "generic_9x4", Start: 4 * 9, End: 4*9 + 35, Slots: 4*9 + 36},
+	4:  {Name: "generic_9x5", Start: 5 * 9, End: 5*9 + 35, Slots: 5*9 + 36},
+	5:  {Name: "generic_9x6", Start: 6 * 9, End: 6*9 + 35, Slots: 6*9 + 36},
+}