init
This commit is contained in:
WangXiang
265
server/index.js
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265
server/index.js
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const WebSocket = require('ws');
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const PORT = 8910;
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const wss = new WebSocket.Server({ port: PORT });
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// Game State
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let nextPlayerId = 1;
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const players = new Map(); // id -> { id, name, x, y, skin_id, ws }
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// Mock Data
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const NOTICES = [
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{
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"text": "欢迎来到 [color=#3399ff]Datawhale Town (Online)[/color]!\n\n这里是开源学习者的家园。在这里，我们一同探索知识，分享成长。\n\n[center]🐋[/center]",
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"image_path": "res://Assets/Assets/background2.png"
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},
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{
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"text": "最新活动 (Server)：\n\n- 镇长刚刚搬进来了，就在喷泉左边。\n- 欢迎板已经设立，查看最新动态。\n- 玩家名字现在显示在头顶了！",
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"image_path": "res://Assets/MayorWhale.png"
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},
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{
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"text": "操作提示：\n\n- 按 [color=#ffaa00]F[/color] 键可以与物体互动。\n- 在下方输入框输入文字并在气泡中显示。\n- 点击右下角按钮发送聊天。",
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"image_path": "res://Assets/NoticeBoard.png"
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}
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];
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console.log(`PokePlaza Server listening on ws://localhost:${PORT}`);
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wss.on('connection', (ws) => {
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let playerId = null;
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ws.on('message', (rawData) => {
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let msg;
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try {
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msg = JSON.parse(rawData.toString());
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} catch (e) {
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console.error('Invalid JSON:', rawData.toString());
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return;
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}
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switch (msg.type) {
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case 'login':
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handleLogin(ws, msg);
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break;
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case 'move':
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handleMove(msg);
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break;
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case 'chat':
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handleChat(msg);
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break;
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case 'private_chat':
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handlePrivateChat(msg);
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break;
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case 'change_scene':
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handleChangeScene(msg);
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break;
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case 'get_notices':
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handleGetNotices(ws);
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break;
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function handlePrivateChat(msg) {
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if (playerId === null) return;
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const targetId = msg.target_id;
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const targetPlayer = players.get(targetId);
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if (targetPlayer) {
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// Send to Target
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send(targetPlayer.ws, {
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type: 'private_chat',
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sender_id: playerId,
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text: msg.text
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});
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// Send back to Sender (so they know it sent)
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// Actually, client can handle simulated display, but server confirmation is nice.
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// In this design, let's just let client handle its own "Sent" display to avoid double-echo if we aren't strict.
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// But wait, our client code relies on "private_chat_message_received" for INCOMING.
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// For OUTGOING, the client code manually appends to log. So we DON'T echo back.
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}
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}
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default:
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console.warn('Unknown message type:', msg.type);
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}
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});
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ws.on('close', () => {
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if (playerId !== null) {
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console.log(`Player ${playerId} disconnected`);
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const player = players.get(playerId);
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const currentScene = player ? player.scene : 'world';
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players.delete(playerId);
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broadcastExcept(playerId, { type: 'player_leave', id: playerId }, currentScene);
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}
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});
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function handleLogin(ws, msg) {
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playerId = nextPlayerId++;
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const player = {
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id: playerId,
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name: msg.name || 'Anonymous',
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x: 240, // Center of 480x270 viewport
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y: 135,
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skin_id: msg.skin_id || 0,
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scene: 'world', // Default scene
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ws: ws
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};
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players.set(playerId, player);
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// Send login_ok to this player with all current players IN THE SAME SCENE
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const sameScenePlayers = [];
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for (const [id, p] of players) {
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if (p.scene === player.scene) {
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sameScenePlayers.push({ id: p.id, name: p.name, x: p.x, y: p.y, skin_id: p.skin_id });
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}
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}
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send(ws, { type: 'login_ok', id: playerId, players: sameScenePlayers });
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// Broadcast to others in the SAME SCENE that a new player joined
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broadcastExcept(playerId, {
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type: 'player_join',
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id: playerId,
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name: player.name,
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x: player.x,
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y: player.y,
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skin_id: player.skin_id
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}, player.scene);
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console.log(`Player ${playerId} (${player.name}) logged in to ${player.scene}`);
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}
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function handleMove(msg) {
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if (playerId === null) return;
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const player = players.get(playerId);
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// console.log(`Server: handleMove from PlayerID ${playerId}. Msg: ${JSON.stringify(msg)}`);
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if (!player) return;
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player.x = msg.x;
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player.y = msg.y;
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// Broadcast to all OTHER players IN THE SAME SCENE
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broadcastExcept(playerId, {
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type: 'player_move',
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id: playerId,
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x: msg.x,
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y: msg.y,
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flip_h: msg.flip_h,
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frame: msg.frame
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}, player.scene);
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}
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function handleChangeScene(msg) {
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if (playerId === null) return;
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const player = players.get(playerId);
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if (!player) return;
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const oldScene = player.scene;
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const newScene = msg.scene;
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if (oldScene === newScene) return;
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// 1. Tell everyone in the OLD scene that this player LEFT
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broadcastExcept(playerId, { type: 'player_leave', id: playerId }, oldScene);
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// 2. Update player scene AND position if provided
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player.scene = newScene;
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if (typeof msg.x === 'number' && typeof msg.y === 'number') {
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player.x = msg.x;
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player.y = msg.y;
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}
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console.log(`Player ${playerId} changed scene to ${newScene} at (${player.x}, ${player.y})`);
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// 3. Tell everyone in the NEW scene that this player JOINED
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broadcastExcept(playerId, {
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type: 'player_join',
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id: playerId,
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name: player.name,
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x: player.x,
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y: player.y,
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skin_id: player.skin_id
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}, newScene);
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// 4. Send the player the list of existing players in the NEW scene
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const newScenePlayers = [];
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for (const [id, p] of players) {
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if (p.id !== playerId && p.scene === newScene) {
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newScenePlayers.push({ id: p.id, name: p.name, x: p.x, y: p.y, skin_id: p.skin_id });
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}
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}
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// Use a special sync message or re-use login_ok?
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// Re-using login_ok might confuse the client if it resets ID, but since ID matches, it might be fine.
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// Better: custom 'scene_peers' message.
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send(ws, { type: 'scene_peers', players: newScenePlayers });
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}
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function handleChat(msg) {
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if (playerId === null) return;
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const player = players.get(playerId);
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// Broadcast to ALL players IN THE SAME SCENE
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broadcast({
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type: 'chat',
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id: playerId,
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text: msg.text
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}, player ? player.scene : 'world');
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}
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function handlePrivateChat(msg) {
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if (playerId === null) return;
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const targetId = msg.target_id;
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const targetPlayer = players.get(targetId);
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if (targetPlayer) {
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// Send to Target
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send(targetPlayer.ws, {
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type: 'private_chat',
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sender_id: playerId,
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text: msg.text
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});
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// No echo needed for outgoing, client handles it.
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}
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}
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});
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function send(ws, obj) {
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if (ws.readyState === WebSocket.OPEN) {
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ws.send(JSON.stringify(obj));
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}
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}
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function broadcast(obj, sceneFilter) {
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const data = JSON.stringify(obj);
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for (const [id, player] of players) {
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if (player.ws.readyState === WebSocket.OPEN) {
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if (!sceneFilter || player.scene === sceneFilter) {
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player.ws.send(data);
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}
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}
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}
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}
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function broadcastExcept(excludeId, obj, sceneFilter) {
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const data = JSON.stringify(obj);
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for (const [id, player] of players) {
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if (id !== excludeId && player.ws.readyState === WebSocket.OPEN) {
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if (!sceneFilter || player.scene === sceneFilter) {
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// console.log(`Server: Sending to ${id}: ${data}`);
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player.ws.send(data);
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}
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}
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}
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}
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function handleGetNotices(ws) {
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const response = {
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type: 'notices_list',
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data: NOTICES
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};
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if (ws.readyState === WebSocket.OPEN) {
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ws.send(JSON.stringify(response));
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}
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}
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