Tweening – An Integral Part Of Flash Web Development
When one speaks of Flash game design or Flash graphic design, what invariably flashes across anyone's mind is animation. Flash scripting is inadvertently directed to development of animation, involving morphing or stimulating motion using certain graphics.
Tweening is a concept of Flash that facilitates animation upon you specify the key frames for a given animation task for a fixed period of time. The process involves you to decide and specify the first frame and the last frame of position or shape of the animation subject to leave the rest to Flash. Flash then "tweens" the frames in between to generate a smooth animation of change in position or shape of the subject within a fixed period of time, hence stimulating motion or morphing of the subject in question.
Besides, automatic generation of smooth animation, the other advantages of tweening is minimum file size of such an animation file. Tweening, thus, is instrumental to easy and quick flash game design and flash graphic design. The concept minimizes manual flash scripting and saves valuable time and energy during Flash web development.
There are two types of Tweening predominantly, as hinted already:
Motion Tweening: When the ultimate effect of tweened animation is to stimulate motion within a fixed time frame, it is called motion tweening. The motion tweening can be change in position or size or rotation etc. of the subject(s) to be animated, which can be a text block or a symbol or a drawing or otherwise, within a fixed time period.
Shape Tweening: Tweening targeted to change the shape of the subject within a given timeline is called Shape Tweening. Under the purview, you select the initial drawing or shape at the start of the timeline and another shape at another point later in the timeline to let Adobe Flash generate the frame values in between to stimulate morphing animation effect.
The Motion Tweening is the more popular of the two types and fairly easier to implement than Shape Tweening. Flash also allows tweening of colour shades, including fading effects.
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