LttP: Implement DeathLink

CommonClient.py

@@ -5,6 +5,7 @@ import urllib.parse
 import sys
 import os
 import typing
+import time
 
 import websockets
 
@@ -135,6 +136,8 @@ class CommonContext():
         self.input_queue = asyncio.Queue()
         self.input_requests = 0
 
+        self.last_death_link: float = time.time()  # last send/received death link on AP layer
+
         # game state
         self.player_names: typing.Dict[int: str] = {0: "Archipelago"}
         self.exit_event = asyncio.Event()
@@ -256,6 +259,20 @@ class CommonContext():
             except Exception as e:  # safeguard against permissions that may be implemented in the future
                 logger.exception(e)
 
+    def on_deathlink(self, data: dict):
+        """Gets dispatched when a new DeathLink is triggered by another linked player."""
+        raise NotImplementedError
+
+    async def send_death(self):
+        self.last_death_link = time.time()
+        await self.send_msgs([{
+            "cmd": "Bounce", "tags": ["DeathLink"],
+            "data": {
+                "time": self.last_death_link,
+                "source": self.player_names[self.slot]
+            }
+        }])
+
 
 async def keep_alive(ctx: CommonContext, seconds_between_checks=100):
     """some ISPs/network configurations drop TCP connections if no payload is sent (ignore TCP-keep-alive)
@@ -461,7 +478,9 @@ async def process_server_cmd(ctx: CommonContext, args: dict):
         logger.warning(f"Invalid Packet of {args['type']}: {args['text']}")
 
     elif cmd == "Bounced":
-        pass
+        tags = args.get("tags", [])
+        if "DeathLink" in tags and ctx.last_death_link != args["data"]["time"]:
+            ctx.on_deathlink(args["data"])
 
     else:
         logger.debug(f"unknown command {cmd}")