Basic PacketCloud

src/classes/CloudConnection.ts → src/classes/cloud/CloudConnection.ts

@@ -1,7 +1,7 @@
 // a lot of this has been taken from https://github.com/meow-js/meow-js/blob/master/src/classes/CloudConnection.js thank you so much!
 
 import { WebSocket } from "ws";
-import { Session } from "../Consts";
+import { Session } from "../../Consts";
 import events from "node:events";
 
 /**

src/classes/cloud/PacketCloud.ts

@@ -0,0 +1,34 @@
+import type CloudConnection from "./CloudConnection";
+import events from "events";
+import { encode, decode } from "./utils";
+
+type OnRequestFn = (name: string, value: string) => void;
+
+class PacketCloud extends events.EventEmitter {
+  connection: CloudConnection;
+  onRequestListeners: OnRequestFn[] = [];
+  constructor(connection: CloudConnection) {
+    super();
+    this.connection = connection;
+    this.connection.on("set", (data) => {
+      if (String(data.name).includes("FROM_USER_")) {
+        const [name, value] = [...decode(data.value)];
+        for(const fn of this.onRequestListeners) fn(name, value);
+        this.emit(name, value);
+      }
+    });
+  }
+
+  onRequest(fn: OnRequestFn) {
+    this.onRequestListeners.push(fn);
+    return this;
+  }
+
+  send(name: string, value: string) {
+    const val = encode(name) + encode(value);
+    if (val.length > 250) console.warn("Packet length is greater than 250!");
+    this.connection.setVariable(`FROM_SERVER_SEND`, val);
+  }
+}
+
+export default PacketCloud;

src/classes/cloud/utils.ts

@@ -0,0 +1,18 @@
+export const CHARSET = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ`~1234567890! @#$%^&*()_-.\";:'?><,/".split("");
+export function encode(string: string) {
+  let result = "";
+  for(let i = 0; i < string.length; i++) {
+    result += CHARSET.findIndex(x => x === string[i]) + 10;
+  };
+  return result + "00";
+};
+export function* decode(string: string) {
+  let value = "";
+  for(let i = 1; i < string.length; i += 2) {
+    const idx = Number(string[i-1] + string[i]) - 10;
+    if(idx < 0) {
+      yield value;
+      value = "";
+    } else value += CHARSET[idx];
+  }
+}

src/index.ts

@@ -2,7 +2,8 @@ export { default as ScratchSession } from "./ScratchSession";
 export { default as Profile } from "./classes/Profile";
 export { default as Studio } from "./classes/Studio";
 export { default as Project } from "./classes/Project";
-export { default as CloudConnection } from "./classes/CloudConnection";
+export { default as CloudConnection } from "./classes/cloud/CloudConnection";
+export { default as PacketCloud } from "./classes/cloud/PacketCloud";
 export { default as Forum } from "./classes/forums/Forum";
 export { default as Topic } from "./classes/forums/Topic";
 export { default as Post } from "./classes/forums/Post";