import Core from './core.js'; export default class samp extends Core { constructor() { super(); this.encoding = 'win1252'; this.magicHeader = 'SAMP'; this.responseMagicHeader = null; this.isVcmp = false; } async run(state) { // read info { const reader = await this.sendPacket('i'); if (this.isVcmp) { const consumed = reader.part(12); state.raw.version = this.reader(consumed).string(); } state.password = !!reader.uint(1); state.raw.numplayers = reader.uint(2); state.maxplayers = reader.uint(2); state.name = reader.pascalString(4); state.raw.gamemode = reader.pascalString(4); state.raw.map = reader.pascalString(4); } // read rules if (!this.isVcmp) { const reader = await this.sendPacket('r'); const ruleCount = reader.uint(2); state.raw.rules = {}; for(let i = 0; i < ruleCount; i++) { const key = reader.pascalString(1); const value = reader.pascalString(1); state.raw.rules[key] = value; } } // read players // don't even bother if > 100 players, because the server won't respond let gotPlayerData = false; if (state.raw.numplayers < 100) { if (this.isVcmp) { const reader = await this.sendPacket('c', true); if (reader !== null) { gotPlayerData = true; const playerCount = reader.uint(2); for(let i = 0; i < playerCount; i++) { const player = {}; player.name = reader.pascalString(1); state.players.push(player); } } } else { const reader = await this.sendPacket('d', true); if (reader !== null) { gotPlayerData = true; const playerCount = reader.uint(2); for(let i = 0; i < playerCount; i++) { const player = {}; player.id = reader.uint(1); player.name = reader.pascalString(1); player.score = reader.int(4); player.ping = reader.uint(4); state.players.push(player); } } } } if (!gotPlayerData) { state.players.setNum(state.raw.numplayers); } } async sendPacket(type,allowTimeout) { const outBuffer = Buffer.alloc(11); outBuffer.write(this.magicHeader,0, 4); const ipSplit = this.options.address.split('.'); outBuffer.writeUInt8(parseInt(ipSplit[0]),4); outBuffer.writeUInt8(parseInt(ipSplit[1]),5); outBuffer.writeUInt8(parseInt(ipSplit[2]),6); outBuffer.writeUInt8(parseInt(ipSplit[3]),7); outBuffer.writeUInt16LE(this.options.port,8); outBuffer.writeUInt8(type.charCodeAt(0),10); const checkBuffer = Buffer.from(outBuffer); if (this.responseMagicHeader) { checkBuffer.write(this.responseMagicHeader, 0, 4); } return await this.udpSend( outBuffer, (buffer) => { const reader = this.reader(buffer); for(let i = 0; i < checkBuffer.length; i++) { if(checkBuffer.readUInt8(i) !== reader.uint(1)) return; } return reader; }, () => { if(allowTimeout) { return null; } } ); } }