Begin port to 26.3: movement

mosfet/protocol/modern.py

@@ -0,0 +1,39 @@
+"""Chat adapter for the Minecraft 26.3 play protocol."""
+import time
+
+from minecraft.networking.modern import (
+    ChatCommand, ClientboundPlayerChatPacket, ServerboundChatPacket, SystemChat,
+)
+
+
+class ModernChatManager:
+    def __init__(self, global_state):
+        self.g = global_state
+        self.handler = None
+        self.g.connection.register_packet_listener(
+            self.handle_player_chat, ClientboundPlayerChatPacket)
+
+    def set_handler(self, callback):
+        self.handler = callback
+
+    def handle_player_chat(self, packet):
+        sender = str(packet.sender)
+        text = '{}: {}'.format(sender, packet.message)
+        print('[chat] {}: {}'.format(sender, packet.message), flush=True)
+        if self.handler:
+            self.handler(('CHAT', sender, text))
+
+    def handle_system_chat(self, packet, message):
+        if self.handler:
+            self.handler(('SYSTEM', None, message))
+
+    def send(self, message):
+        if not message:
+            return
+        if message.startswith('/'):
+            self.g.connection.write_packet(
+                ChatCommand(command=message[1:]), force=True)
+        else:
+            packet = ServerboundChatPacket(
+                message=message, timestamp=int(time.time() * 1000))
+            self.g.connection.write_packet(packet, force=True)