57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
import WsClient from './WsClient.js'
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import Protocol from './../common/Protocol.js'
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/** @type WsClient */
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let conn
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let changesCallback = () => {}
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function onServerChange(callback) {
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changesCallback = callback
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}
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function send(message) {
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conn.send(JSON.stringify(message))
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}
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let clientSeq
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let events
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function connect(gameId, clientId) {
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clientSeq = 0
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events = {}
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conn = new WsClient(WS_ADDRESS, clientId + '|' + gameId)
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return new Promise(r => {
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conn.connect()
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send([Protocol.EV_CLIENT_INIT])
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conn.onSocket('message', async ({ data }) => {
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const msg = JSON.parse(data)
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const msgType = msg[0]
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if (msgType === Protocol.EV_SERVER_INIT) {
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const game = msg[1]
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r(game)
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} else if (msgType === Protocol.EV_SERVER_EVENT) {
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const msgClientId = msg[1]
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const msgClientSeq = msg[2]
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if (msgClientId === clientId && events[msgClientSeq]) {
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delete events[msgClientSeq]
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// we have already calculated that change locally. probably
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return
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}
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changesCallback(msg)
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}
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})
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})
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}
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function sendClientEvent(mouse) {
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// when sending event, increase number of sent events
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// and add the event locally
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clientSeq++;
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events[clientSeq] = mouse
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send([Protocol.EV_CLIENT_EVENT, clientSeq, events[clientSeq]])
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}
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export default {
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connect,
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onServerChange,
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sendClientEvent,
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}
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