feat: Add support for AltvMP (#588)

* feat: Add Minetest support using serverlist

* Allow for connect to be assigned,

* Add serverId to the string args

* Add altvmp implementation

* Added altv to games.

* Add changelog entry

* Update CHANGELOG.md with state.connect

protocols/altvmp.js

@@ -0,0 +1,63 @@
+import Core from './core.js'
+
+export default class altvmp extends Core {
+  constructor() {
+    super()
+    this.usedTcp = true
+  }
+
+  async getServerFromMasterList() {
+    const targetID = `${this.options.host}:${this.options.port}`
+
+    const results = await this.request({
+      url: 'https://api.alt-mp.com/servers',
+      responseType: 'json'
+    })
+
+    if (results == null) {
+      throw new Error('Unable to retrieve master server list')
+    }
+
+    const serverInfo = results.find((server) => {
+      // If the server uses a CDN, there could be occasional paths in the address, so we are checking for them.
+      // If the server does not use a CDN, there will be no paths in the address and direct comparison will work.
+      const address = server.useCdn
+        ? server.address
+        : server.address.replace(/(https?:\/\/)?\/?/g, '')
+      return address === targetID
+    })
+
+    return serverInfo
+  }
+
+  async getServerById(targetID) {
+    const serverInfo = await this.request({
+      url: `https://api.alt-mp.com/servers/${targetID}`,
+      responseType: 'json'
+    })
+
+    if (serverInfo == null) {
+      throw new Error('Unable to retrieve server info')
+    }
+
+    return serverInfo
+  }
+
+  async run(state) {
+    const serverInfo = this.options.serverId
+      ? await this.getServerById(this.options.serverId)
+      : await this.getServerFromMasterList()
+
+    if (!serverInfo) {
+      throw new Error('No server info was found.')
+    }
+
+    state.name = serverInfo.name
+    state.numplayers = serverInfo.playersCount
+    state.maxplayers = serverInfo.maxPlayersCount
+    state.password = serverInfo.passworded
+    state.version = serverInfo.version
+    state.connect = `altv://${serverInfo.address}`
+    state.raw = serverInfo
+  }
+}