91 lines
2.5 KiB
Go
91 lines
2.5 KiB
Go
// playerdataconvert is a program to convert player data form offline server to online server.
|
|
//
|
|
// When a player with official account login connect to a offline-mode server,
|
|
// the server store the player data with their "offline UUID". While you open
|
|
// the online-mode switch, the player data loose.
|
|
//
|
|
// By using this tool, you can convert the offline data into online data.
|
|
// The players will keep everything they got, yay!
|
|
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/google/uuid"
|
|
)
|
|
|
|
var (
|
|
savePath = flag.String("save", ".", "The save folder with \"usercache.json\" file inside")
|
|
convertPlayerData = flag.Bool("cplayerdata", true, "Whether convert files at /world/playerdata/*.dat")
|
|
convertEntities = flag.Bool("centities", true, "Whether convert pets' Owner at /world/entities/*")
|
|
convertAdvancements = flag.Bool("cadvancements", true, "Whether convert advancements at /world/advancements/*")
|
|
)
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
|
|
usercaches, err := readUsercache(filepath.Join(*savePath, "usercache.json"))
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "Failed to parse usercache file: %v\n", err)
|
|
return
|
|
}
|
|
fmt.Printf("Successfully reading usercache\n")
|
|
m := mappingUsers(usercaches)
|
|
|
|
if *convertPlayerData {
|
|
readPlayerdata(filepath.Join(*savePath, "world", "playerdata"), m)
|
|
}
|
|
|
|
if *convertEntities {
|
|
readEntities(filepath.Join(*savePath, "world", "entities"), m)
|
|
}
|
|
|
|
if *convertAdvancements {
|
|
readAdvancements(filepath.Join(*savePath, "world", "advancements"), m)
|
|
}
|
|
}
|
|
|
|
type UserCache struct {
|
|
Name string `json:"name"`
|
|
UUID uuid.UUID `json:"uuid"`
|
|
}
|
|
|
|
func readUsercache(path string) ([]UserCache, error) {
|
|
data, err := os.ReadFile(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var usercache []UserCache
|
|
err = json.Unmarshal(data, &usercache)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return usercache, nil
|
|
}
|
|
|
|
func mappingUsers(users []UserCache) map[uuid.UUID]UserCache {
|
|
m := make(map[uuid.UUID]UserCache)
|
|
for _, user := range users {
|
|
name := user.Name
|
|
// // You can add your maps here
|
|
// if v, ok := offlineOnlineMaps[name]; ok {
|
|
// name = v
|
|
// }
|
|
|
|
name, id, err := usernameToUUID(name)
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "Unable to fetch username for %s from Mojang server: %v\n", name, err)
|
|
continue
|
|
}
|
|
|
|
fmt.Printf("[%s] %v -> %v\n", name, user.UUID, id)
|
|
m[user.UUID] = UserCache{name, id}
|
|
}
|
|
return m
|
|
}
|