Remove SetItemRuntimeID method and update item mapping initialization

cmd/dfmapping/main.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"github.com/samber/lo"
+	"github.com/sandertv/gophertunnel/minecraft/nbt"
+	"io"
+	"net/http"
+	"os"
+)
+
+func main() {
+	fmt.Println("Downloading vanilla items NBT file...")
+	resp, err := http.Get("https://github.com/df-mc/dragonfly/raw/refs/heads/master/server/world/vanilla_items.nbt")
+	if err != nil {
+		panic(err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		panic(fmt.Errorf("failed to download vanilla items NBT file: %s", resp.Status))
+	}
+	bytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		panic(fmt.Errorf("failed to read vanilla items NBT file: %w", err))
+	}
+
+	var m map[string]struct {
+		RuntimeID      int32          `nbt:"runtime_id"`
+		ComponentBased bool           `nbt:"component_based"`
+		Version        int32          `nbt:"version"`
+		Data           map[string]any `nbt:"data,omitempty"`
+	}
+	if err := nbt.Unmarshal(bytes, &m); err != nil {
+		panic(fmt.Errorf("failed to unmarshal vanilla items NBT file: %w", err))
+	}
+
+	type itemEntry struct {
+		RuntimeID      int16  `json:"runtime_id"`
+		ComponentBased bool   `json:"component_based"`
+		Version        *uint8 `json:"version"`
+		Data           string `json:"component_nbt,omitempty"`
+	}
+
+	m2 := make(map[string]itemEntry)
+	defData := make(map[string]any)
+	for k, v := range m {
+		var data string
+		if v.Data == nil {
+			v.Data = defData
+		}
+		dataBytes, err := nbt.Marshal(v.Data)
+		if err != nil {
+			panic(fmt.Errorf("failed to marshal component NBT for item %s: %w", k, err))
+		}
+		data = base64.StdEncoding.EncodeToString(dataBytes)
+		m2[k] = itemEntry{
+			RuntimeID:      int16(v.RuntimeID),
+			ComponentBased: v.ComponentBased,
+			Version:        lo.ToPtr(uint8(v.Version)),
+			Data:           data,
+		}
+	}
+	jsonData, err := json.MarshalIndent(m2, "", "    ")
+	if err != nil {
+		panic(fmt.Errorf("failed to marshal item data to JSON: %w", err))
+	}
+	fmt.Println("Writing item data to dragonfly_items.json...")
+	if err := os.WriteFile("dragonfly_items.json", jsonData, 0644); err != nil {
+		panic(fmt.Errorf("failed to write item data to dragonfly_items.json: %w", err))
+	}
+	fmt.Println("Item data written to dragonfly_items.json successfully.")
+}

legacyver/v818.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 	"github.com/akmalfairuz/legacy-version/mapping"
-	"github.com/sandertv/gophertunnel/minecraft/nbt"
 )
 
 const (
@@ -18,30 +17,14 @@ var (
 	requiredItemList818 []byte
 	//go:embed data/block_states_818.nbt
 	blockStateData818 []byte
-	//go:embed data/dragonfly_latest_vanilla_items.nbt
-	dragonflyLatestVanillaItemsRaw []byte
+
+	dragonflyLatestItemList []byte = requiredItemList818
 
 	itemMappingLatestPocketMine = mapping.NewItemMapping(requiredItemList818, ItemVersion818)
-	itemMappingLatestDragonfly  = mapping.NewItemMapping(requiredItemList818, ItemVersion818)
+	itemMappingLatestDragonfly  = mapping.NewItemMapping(dragonflyLatestItemList, ItemVersion818)
 	blockMappingLatest          = mapping.NewBlockMapping(blockStateData818)
 )
 
-func init() {
-	var m map[string]struct {
-		RuntimeID      int32          `nbt:"runtime_id"`
-		ComponentBased bool           `nbt:"component_based"`
-		Version        int32          `nbt:"version"`
-		Data           map[string]any `nbt:"data,omitempty"`
-	}
-	if err := nbt.Unmarshal(dragonflyLatestVanillaItemsRaw, &m); err != nil {
-		panic(err)
-	}
-
-	for identifier, v := range m {
-		itemMappingLatestDragonfly.SetItemRuntimeID(identifier, v.RuntimeID)
-	}
-}
-
 func itemMappingLatest(dragonflyMapping bool) mapping.Item {
 	if dragonflyMapping {
 		return itemMappingLatestDragonfly

mapping/item.go

@@ -21,7 +21,6 @@ type Item interface {
 	Air() int32
 	ItemVersion() uint16
 	ItemEntries() []ItemEntry
-	SetItemRuntimeID(string, int32)
 }
 
 type ItemEntry struct {
@@ -106,13 +105,6 @@ func NewItemMapping(requiredItemList []byte, itemVersion uint16) *DefaultItemMap
 	return &DefaultItemMapping{itemRuntimeIDsToNames: itemRuntimeIDsToNames, itemNamesToRuntimeIDs: itemNamesToRuntimeIDs, itemRuntimeIDToVersion: itemRuntimeIDToVersion, airRID: *airRID, itemVersion: itemVersion, itemRuntimeIDToData: itemRuntimeIDToData, itemEntries: itemEntries}
 }
 
-func (m *DefaultItemMapping) SetItemRuntimeID(name string, runtimeID int32) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.itemNamesToRuntimeIDs[name] = runtimeID
-	m.itemRuntimeIDsToNames[runtimeID] = name
-}
-
 func (m *DefaultItemMapping) ItemRuntimeIDToName(runtimeID int32) (name string, found bool) {
 	defer m.mu.Unlock()
 	m.mu.Lock()