feat: websocket server
feat: emulator (virtualcam) feat: basic web client
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.gitignore
vendored
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.gitignore
vendored
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roms/
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.venv/
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.mypy_cache/
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states/
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67
src/client.html
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src/client.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Telecommande</title>
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</head>
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<body>
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<button id="a">a</button>
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<button id="b">b</button>
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<button id="select">select</button>
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<button id="start">start</button>
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<button id="right">right</button>
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<button id="left">left</button>
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<button id="up">up</button>
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<button id="down">down</button>
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<button id="r">r</button>
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<button id="l">l</button>
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<script>
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var websocket = new WebSocket("ws://127.0.0.1:6789/");
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var a = document.getElementById('a'),
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b = document.getElementById('b'),
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select = document.getElementById('select'),
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start = document.getElementById('start'),
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right = document.getElementById('right'),
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left = document.getElementById('left'),
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up = document.getElementById('up'),
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down = document.getElementById('down'),
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r = document.getElementById('r'),
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l = document.getElementById('l');
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a.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'a' }));
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}
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b.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'b' }));
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}
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select.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'select' }));
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}
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start.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'start' }));
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}
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right.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'right' }));
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}
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left.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'left' }));
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}
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up.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'up' }));
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}
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down.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'down' }));
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}
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r.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'r' }));
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}
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l.onclick = function (event) {
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websocket.send(JSON.stringify({ action: 'l' }));
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}
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</script>
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</body>
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</html>
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67
src/emulator.py
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67
src/emulator.py
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import asyncio
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import logging
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import mgba.core
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import mgba.image
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import mgba.log
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import numpy as np
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import pyvirtualcam
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import websockets
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WIDTH = 240
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HEIGHT = 160
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URI: str = "ws://127.0.0.1:6789/"
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KEYMAP: dict[str, int] = {
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"a": 0,
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"b": 1,
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"select": 2,
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"start": 3,
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"right": 4,
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"left": 5,
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"up": 6,
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"down": 7,
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"r": 8,
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"l": 9,
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}
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core = mgba.core.load_path("roms/pokemon.gba")
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screen = mgba.image.Image(WIDTH, HEIGHT)
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core.set_video_buffer(screen)
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core.reset()
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mgba.log.silence()
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logging.basicConfig(level=logging.DEBUG)
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async def main():
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with pyvirtualcam.Camera(width=WIDTH, height=HEIGHT, fps=60) as cam:
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logging.debug(f"Using virtual camera: {cam.device}")
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async with websockets.connect(URI) as websocket:
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await websocket.send('{"auth":"password"}')
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logging.debug(f"connected to: {websocket}")
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test = core.save_raw_state()
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while True:
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if core.frame_counter % 30 == 0:
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await websocket.send('{"action":"get"}')
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response = await websocket.recv()
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if response in KEYMAP:
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key = KEYMAP[response]
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core.set_keys(key)
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logging.debug(f"pressing: {key}")
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# with open("pokemon.state", "w") as f:
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# f.write(test)
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core.load_raw_state(test)
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print(str(test))
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core.run_frame()
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core.clear_keys(*KEYMAP.values())
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frame = np.array(screen.to_pil().convert("RGB"), np.uint8)
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cam.send(frame)
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cam.sleep_until_next_frame()
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asyncio.run(main())
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119
src/server.py
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119
src/server.py
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import asyncio
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import json
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import logging
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import time
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from typing import Any
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import websockets
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logging.basicConfig(level=logging.DEBUG)
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class User:
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websocket: Any = None
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last_message: float = time.time()
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has_voted: bool = False
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def register(self, websocket: Any):
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self.websocket = websocket
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USERS.add(self)
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logging.debug(
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f"user registered: {self}",
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)
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def unregister(self):
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# self.websocket.close()
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USERS.remove(self)
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logging.debug(
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f"user unregistered: {self}",
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)
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def __str__(self) -> str:
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return f"{self.websocket.remote_address} ({self.websocket.id})"
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USERS: set[User] = set()
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EMULATOR: Any = None
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PASSWORD: str = "password"
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VOTES: dict[str, int] = {
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"a": 0,
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"b": 0,
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"select": 0,
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"start": 0,
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"right": 0,
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"left": 0,
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"up": 0,
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"down": 0,
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"r": 0,
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"l": 0,
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}
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def clear_votes():
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for key in VOTES.keys():
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VOTES[key] = 0
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for user in USERS:
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user.has_voted = False
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logging.info(f"votes cleared: {VOTES}")
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def next_move():
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if any(VOTES.values()):
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return max(VOTES, key=VOTES.get)
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else:
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return "null"
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async def handler(websocket, path):
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try:
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global EMULATOR
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# Register user
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user = User()
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user.register(websocket)
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# Manage received messages
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async for message in websocket:
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data = json.loads(message)
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if "auth" in data:
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auth: str = data["auth"]
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logging.debug(f"auth received: {auth}")
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if not EMULATOR and auth == PASSWORD:
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EMULATOR = websocket
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user.unregister()
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logging.debug(f"emulator authenticated: {EMULATOR}")
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if "action" in data:
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action: str = data["action"]
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if action in VOTES:
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VOTES[action] += 1
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user.last_message = time.time()
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user.has_voted = True
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logging.debug(f"key received: {action} ({VOTES[action]}), from {user}")
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elif action == "get":
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if EMULATOR and websocket == EMULATOR:
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move = next_move()
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await websocket.send(move)
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logging.info(f"vote sent: {move}")
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clear_votes()
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else:
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logging.error(f"user is not EMULATOR: {user}")
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else:
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logging.error(f"unsupported action: {data}")
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finally:
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# Unregister user
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user.unregister()
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async def main():
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async with websockets.serve(handler, "localhost", 6789):
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await asyncio.Future() # run forever
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if __name__ == "__main__":
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asyncio.run(main())
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