Countdown component

[TimPietrusky]

To prepare the audience for a time-jump we need to put a countdown element into a slide so that they know that after the countdown is due, we make a time-jump.

Basic

• Display the countdown that is set via a property
• Start the countdown when it's shown on the slide or when a fragment get's visibile
  • When started: Work as a "usual" countdown, and decrease the start value

<!-- 5 second countdown -->
<Countdown start="00:05"></Clock>

Advanced

• Show / hide seconds
• Change the speed of the countdown
• Add "piiiep" sound after x seconds for every second that the countdown gets decreased

[TimPietrusky]

Basic Countdown was added as SuperTimer component.