Init commit

src/TransportProcessor.js

@@ -0,0 +1,37 @@
+class TransportProcessor extends AudioWorkletProcessor {
+
+    constructor(options) {
+        super(options);
+        this.port.addEventListener("message", this.handleMessage);
+        this.port.start();
+        this.interval = 0.001;
+        this.origin = currentTime;
+        this.next = this.origin + this.interval;
+    }
+ 
+    handleMessage = (message) => {
+       if (message.data === "start") {
+            this.origin = currentTime;
+            this.next = this.origin + this.interval;
+        } else if (message.data === "pause") {
+            this.next = Infinity;
+        } else if (message.data === "stop") {
+            this.origin = currentTime;
+            this.next = Infinity;
+        }
+    };
+
+    process(inputs, outputs, parameters) {
+        if (currentTime >= this.next) {
+            while (this.next < currentTime)
+                this.next += this.interval;
+            this.port.postMessage("bang");
+        }
+        return true;
+    }
+}
+
+registerProcessor(
+    "transport", 
+    TransportProcessor
+);