#SAMPLE ANIMATE IT BLINK FULL#
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The projects featured in this chapter will all focus on button use. The easiest way to add interactivity to Flash is to use a button to run ActionScript. In this chapter, you’ll give your audience some control through the use of buttons and ActionScript. In Chapter 3, you wrote your first script, to prevent your animation from looping by default. In this case, equally spaced keyframes are implied.It’s time to get interactive! Flash can be a rewarding design and animation tool, but you won’t be using the application to its fullest potential unless you include elements of interactivity. If animating a single property, they keyframes may be expressed as a object with the property name as a key and a list of string/numeric values for the property. For this animation, a neutral keyframe is inferred at offset 0. The first of the two animations illustrates the use of partial keyframes. If offsets are not specified, then equal spacing is assumed. The keyframes argument to animate may be a list of keyframes with optional offsets.

This example illustrates two formats for expressing the list of keyframes. Keyframes specify property values at various positions along the animation curve. CSS animationĬSS animations are created via CSS rules, whereby an animation-name property (or animation shorthand property) refers to one or more keyframes rules.

#SAMPLE ANIMATE IT BLINK CODE#

Nonetheless, all three animation types share a common base class ( Animation) with the majority of the code being common to all three animation types. These animation types are largely differentiated by their creation mechanism, but also have differences in behavior such as rules for composite ordering. There are 3 main types of animations that are supported in this directory subtree: CSS animations, CSS transitions, and web animations. In practice, a null timeline should be rarely encountered however, it is important to keep in mind, since failure to track such edge cases can easily lead to crashes in the code.

In the later case, the timeline is initialized based on the document timeline associated with the animated element's document (document fragment when inside shadowDOM). Note that this is not equivalent to using the default timeline. The timeline may be unresolved, by explicitly setting it to null for an animation. It is important to remember that unit conversion is required in the case of a progress-based animation, when reporting or consuming values via JavaScript APIs. Through most of the animation discussion below, we will use time calculations in milliseconds. Internally, each progress-based animation, is normalized to 100s. The consistent internal treatment of time is maintained by using a fixed constant value for the conversion between percent and time. Unlike document timelines, times are externally represented as CSSNumericValue with explicit units of percent. Also like document timelines, times are represented internally as AnimationTimeDelta. The same equation holds between timeline time and animation current time. Scroll time = (scroll position - effective start) / (effective end - effective start) * 100%

#SAMPLE ANIMATE IT BLINK FULL#

Each scroll timeline has an effective range, which by default is the full scroll range however, it may be set to a smaller range of scroll offsets. Scroll timelines are progress based and measure the passage of time as a percentage.

The clock is updated when a new animation frame is produced.įor a running animation, the link between the timeline time and the animation's current time is as follows:Īnimation current time = (timeline time - animation start time) * playback rateįor a document timeline, these times are internally represented as AnimationTimeDelta, and externally represented as optional doubles with implicit units of milliseconds. The timeline time is held constant during script execution. Whenever script is executed, a timeline time is computed based on the animation clock. Document Timelineĭocument timelines measure the passage of time in milliseconds relative to an origin time. This section highlights a key difference between timeline types when it comes to the handling of time, which in turn should make it easier to follow the animations discussion below. See the section titled “Timeline Details” for a full description of the timeline attributes. There are presently two types of timelines: document timeline, and scroll timeline. All timelines implement the AnimationTimeline interface. transform interolation.Įach animation is linked to a timeline, which measures the passage of time and is used in determining the current time of the animation.

Individual CSS property animation behaviour e.g.

CSS Properties and Values API Level 1 - Animation Behavior of Custom Properties.

Sample animate it blink