As3 Button动画rts样式

Question

I'm trying to create a simple button that has an animation in it after you click it. Specifically a clockwise circle animates. PacMan dieing is a good example of what i'm trying to do. Think of a pizza pie and every sec a slice gets taken out till its all gone. Is there a programmatic way of achieving this in ActionScript 3 or do i have to manually animate it in photoshop?

I know how to make a button i'm just not sure how to animate it. If all else fails i think i'm going to grey out the button and then start a countdown from 9 down to 1 then re-enable it. I'm still fairly new to As3 advice would be nice. Thankyou

Answer 1

取整圆并在其上放一个遮罩，然后以编程方式在其上绘制一个楔形 。