[animate] update

src/main/hw/animate/AnimateRunner.hx

@@ -0,0 +1,28 @@
+package hw.animate;
+
+import flash.events.Event;
+import flash.Lib;
+
+@:provide class AnimateRunner {
+
+    private var animates:Array<IAnimate>;
+
+    public function new() {
+        animates = [];
+        Lib.current.stage.addEventListener(Event.ENTER_FRAME, _ -> update());
+    }
+
+    private function update():Void {
+        if (animates.length > 0) {
+            var time = Date.now().getTime();
+            animates = animates.filter(animate -> animate.update(time));
+        }
+    }
+
+    public function run(animate:IAnimate):Float {
+        animates.push(animate);
+        var time = Date.now().getTime();
+        animate.update(time);
+        return time;
+    }
+}