好吧，我正在努力让这个坏男孩： https://cdn.discordapp.com/attachments/545206963185647637/596098096853942272/javaw_E4cv3bfjGE.png
变成一个项目：
https://cdn.discordapp.com/attachments/545206963185647637/596098385040113673/javaw_sorHX2JM5s.png
这样做，市民将消失并变成物品。该项目是一个ItemStack，然后对其进行序列化（下面的查看类），然后将其添加到.json文件中，用户的UUID将附加到序列化的ItemStack上。然后，当用户右键单击该项目时，我可以对该项目进行反序列化，并检查其是否与任何经过反序列化处理的项目相对应。
项目控制器（只是一个用于初始化它的类）
public class ItemController {
public ItemController(){
}
public void giveItem(Player player, NPC npc){
ItemStack item = ItemBuilder.buildItem(Material.NETHER_STAR,
ChatUtil.colorize("&6&lGuard Skull"),
1,
ChatUtil.colorize(
"&6&lID: &e" + npc.getId() + "\n" +
"&6&lOwned by:&e " + player.getName() + "\n" +
"&6&lName: &e" + npc.getFullName()
)
);
item.setDurability((short) npc.getId());
player.getInventory().addItem(item);
HandlerManager.getSerializer().addItem(player, item);
HandlerManager.getSerializer().disinit();
HandlerManager.getSerializer().init();
GuardNPC.getInstance().getItemLoggerConfig().save();
}
}
public class ItemList {
@Getter Player player;
public ItemList(Player player){
this.player = player;
}
@Getter private HashMap<Player, String> serialzedItems;
@Getter private HashMap<Player, ItemStack> items;
@Getter private HashMap<Player, ItemStack> allitems;
public ItemList serialize() {
if (serialzedItems == null)
serialzedItems = new HashMap<>();
items.entrySet().forEach(e -> {
serialzedItems.put(e.getKey(), ItemSerializer.itemStackToBase64(e.getValue()));
});
return this;
}
public ItemList deserialize() {
if (items == null)
items = new HashMap<>();
if (serialzedItems != null && !serialzedItems.isEmpty()) {
serialzedItems.entrySet().forEach(entry -> items.put(entry.getKey(), ItemSerializer.itemStackFromBase64(entry.getValue())));
}
return this;
}
public void addItem(Player player, ItemStack item){
if (items == null)
items = new HashMap<>();
if (serialzedItems == null)
serialzedItems = new HashMap<>();
items.put(player, item);
serialzedItems.put(player, ItemSerializer.itemStackToBase64(item));
}
public void removeItem(Player player, ItemStack item){
items.remove(item, player);
serialzedItems.remove(player, ItemSerializer.itemStackToBase64(item));
}
}
ItemList的处理程序
public class Serializer extends Handler{
public Serializer() {
super(false);
}
private List<ItemList> items;
public void init(){
items = GsonUtil.loadObject(new TypeToken<List<ItemList>>() {
}, GuardNPC.getInstance().getItemLoggerConfig().getFile());
if (items == null)
items = new ArrayList<>();
items.forEach(itemList -> itemList.deserialize());
}
public void disinit() {
items.forEach(itemList -> itemList.serialize());
GsonUtil.saveObject(items, GuardNPC.getInstance().getItemLoggerConfig().getFile());
}
public ItemList addItem(Player player, ItemStack item) {
ItemList list;
if (getItemList(player) == null){
list = new ItemList(player);
} else {
list = getItemList(player);
}
list.addItem(player, item);
items.add(list);
return list;
}
public ItemList getItemList(Player player) {
Optional<ItemList> o = items.stream().filter(itemList -> itemList.getPlayer().equals(player)).findAny();
return o.isPresent() ? o.get() : null;
}
}
GSon序列化实用程序：
public class GsonUtil {
private static Gson gson = new GsonBuilder().setPrettyPrinting().create();
public static void saveObject(Object object, File file) {
try {
Writer writer = new FileWriter(file);
writer.write(gson.toJson(object));
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static <T> T loadObject(TypeToken<T> token, File file) {
try {
BufferedReader br = new BufferedReader(new FileReader(file));
return gson.fromJson(br, token.getType());
} catch (IOException e) {
}
return null;
}
}
点击NPC的事件
public class EventNPCPlayerRightClick implements Listener{
@EventHandler
public void onClick(NPCRightClickEvent e){
Player player = e.getClicker();
NPC npc = e.getNPC();
int id = npc.getId();
UUID uuid = player.getUniqueId();
if(GuardNPC.getInstance().getNpcController().isOwner(player, npc)){
npc.despawn();
GuardNPC.getInstance().getItemController().giveItem(player, npc);
return;
} else if(GuardNPC.getInstance().getDebuggedPlayers().contains(player)){
GuardNPC.getInstance().getNpcController().addNPC(npc, player);
npc.despawn();
GuardNPC.getInstance().getItemController().giveItem(player, npc);
return;
}
}
}