impl dynamic config and pause. Bump 0.3.0

src/replay/timer.ts

@@ -1,17 +1,27 @@
 const FRAME_MS = 16;
+const timerMap: Map<number, boolean> = new Map();
 
-function later(cb: () => void, delayMs: number, speed = 1) {
+export function later(cb: () => void, delayMs: number, speed = 1): number {
   const now = performance.now();
+  const id = timerMap.size + 1;
+  timerMap.set(id, true);
 
   function check(step: number) {
+    if (!timerMap.has(id)) {
+      return;
+    }
     if (step - now > delayMs / speed - FRAME_MS) {
       cb();
+      clear(id);
     } else {
       requestAnimationFrame(check);
     }
   }
 
   requestAnimationFrame(check);
+  return id;
 }
 
-export default later;
+export function clear(id: number) {
+  timerMap.delete(id);
+}