[Enhance] Link Play 2.0 e.t.c.

- For Arcaea 5.10.1(c)
- Add support for Link Play 2.0.
- New partners "Luna & Ilot" and "Eto & Hoppe"
- Add support for the skill of "Eto & Hoppe".
- Add support for refreshing ratings of Recent 30 via API and webpage.

Note: This is a bug testing version.

latest version/linkplay_server/udp_sender.py

@@ -1,28 +1,43 @@
+from os import urandom
 from time import time
 
 from .udp_class import Room, b
 
 
+PADDING = [b(i) * i for i in range(16)] + [b'']
+
+
 class CommandSender:
 
     PROTOCOL_NAME = b'\x06\x16'
-    PROTOCOL_VERSION = b'\x09'
+    PROTOCOL_VERSION = b'\x0D'
 
     def __init__(self, room: Room = None) -> None:
         self.room = room
         self.timestamp = round(time() * 1000000)
+        self.room.timestamp = self.timestamp + 1
 
-        self.random_code = b'\x11\x11\x11\x11\x00\x00\x00\x00'
+        self._random_code = None
+
+    @property
+    def random_code(self):
+        if self._random_code is None:
+            self._random_code = urandom(4) + b'\x00\x00\x00\x00'
+        return self._random_code
+
+    @random_code.setter
+    def random_code(self, value):
+        self._random_code = value
 
     @staticmethod
     def command_encode(t: tuple):
         r = b''.join(t)
         x = 16 - len(r) % 16
-        return r + b(x) * x
+        return r + PADDING[x]
 
     def command_prefix(self, command: bytes):
         length = self.room.command_queue_length
-        if command >= b'\x10':
+        if b'\x10' <= command <= b'\x1f':
             length += 1
 
         return (self.PROTOCOL_NAME, command, self.PROTOCOL_VERSION, b(self.room.room_id, 8), b(length, 4))
@@ -31,12 +46,18 @@ class CommandSender:
         return self.command_encode((*self.command_prefix(b'\x0c'), self.random_code, b(self.room.state), b(self.room.countdown, 4), b(self.timestamp, 8)))
 
     def command_0d(self, code: int):
+        # 3 你不是房主
+        # 5 有玩家目前无法开始
+        # 6 需要更多玩家以开始
+        # 7 有玩家无法游玩这首歌
+
         return self.command_encode((*self.command_prefix(b'\x0d'), self.random_code, b(code)))
 
     def command_0e(self, player_index: int):
         # 分数广播
+        # 我猜，616 写错了，首先 4 个 00 大概是分数使用了 8 bytes 转换，其次上一个分数根本就不需要哈哈哈哈哈哈！
         player = self.room.players[player_index]
-        return self.command_encode((*self.command_prefix(b'\x0e'), b(player.player_id, 8), b(player.character_id), b(player.is_uncapped), b(player.difficulty), b(player.score, 4), b(player.timer, 4), b(player.cleartype), b(player.player_state), b(player.download_percent), b'\x01', b(player.last_score, 4), b(player.last_timer, 4), b(player.online)))
+        return self.command_encode((*self.command_prefix(b'\x0e'), player.info, b(player.last_score.score, 4), b'\x00' * 4, b(player.last_score.timer, 4), b'\x00' * 4))
 
     def command_0f(self, player_index: int, song_idx: int):
         # 歌曲推荐
@@ -52,13 +73,17 @@ class CommandSender:
 
     def command_12(self, player_index: int):
         player = self.room.players[player_index]
-        return self.command_encode((*self.command_prefix(b'\x12'), self.random_code, b(player_index), b(player.player_id, 8), b(player.character_id), b(player.is_uncapped), b(player.difficulty), b(player.score, 4), b(player.timer, 4), b(player.cleartype), b(player.player_state), b(player.download_percent), b(player.online)))
+        return self.command_encode((*self.command_prefix(b'\x12'), self.random_code, b(player_index), player.info))
 
     def command_13(self):
-        return self.command_encode((*self.command_prefix(b'\x13'), self.random_code, b(self.room.host_id, 8), b(self.room.state), b(self.room.countdown, 4), b(self.timestamp, 8), b(self.room.song_idx, 2), b(self.room.interval, 2), b(self.room.times, 7), self.room.get_player_last_score(), b(self.room.last_song_idx, 2), b(self.room.round_switch, 1)))
+        return self.command_encode((*self.command_prefix(b'\x13'), self.random_code, self.room.room_info))
 
     def command_14(self):
         return self.command_encode((*self.command_prefix(b'\x14'), self.random_code, self.room.song_unlock))
 
     def command_15(self):
-        return self.command_encode((*self.command_prefix(b'\x15'), self.room.get_players_info(), self.room.song_unlock, b(self.room.host_id, 8), b(self.room.state), b(self.room.countdown, 4), b(self.timestamp, 8), b(self.room.song_idx, 2), b(self.room.interval, 2), b(self.room.times, 7), self.room.get_player_last_score(), b(self.room.last_song_idx, 2), b(self.room.round_switch, 1)))
+        return self.command_encode((*self.command_prefix(b'\x15'), self.room.get_players_info(), self.room.song_unlock, self.room.room_info))
+
+    def command_21(self, player_index: int, sticker_id: int):
+        player = self.room.players[player_index]
+        return self.command_encode((*self.command_prefix(b'\x21'), b(player.player_id, 8), b(sticker_id, 2)))