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I had already talked about how to implement the method shuffle () in Javascript and Actionscript . I realized, tuttaavia, have not emphasized that Actionscript is able to extend, in the same manner as JavaScript, its object Array :

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In PHP there is a handy feature called shuffle() which allows for mixing an array (see Very short trick: take random elements from an array in PHP ). An excellent version of the Javascript I found here . Below the code slightly revised:

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di Actionscript 3.0, con lo scopo di semplificare la manipolazione di Array lineari usati come matrice n x m . MatrixArray is an extension of the class Array of Actionscript 3.0, with the aim to simplify the handling of Array linear used as a matrix n x m. This class is part of the library Undolibrary (in the package undolibrary.utils.MatrixArray ) you can freely download function from any client using Google code SVN (Subversion) to:
svn checkout http://undolibrary.googlecode.com/svn/trunk/
Alternatively you can download the single file MatrixArray.as . An example of the use of linear arrays is given in Actionscript 3.0 for beginners: lesson # 2 where we saw one of his simpler in implementation of classic game Tic Tac Toe. ), proprio come una scacchiera. An array of this type is comparable to a rectangular area ( w x h ), just like a chessboard. With this class is possible to treat a matrix of this type just like a lattice with its x and y coordinates. The MatrixArray I used, for example, in the development of all the logic editor Emotions Icons for Skype: Skypemote .

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Taking advantage of a remarkable feature of Actionscript 3.0 (see Actionscript 3.0, all with the new operator ) I created a class ReflexMe able to generate an effect "reflection" of any MovieClip in this library.

The source is part of the package undolibrary - GoogleCode of this - but if you want you can download the single file ReflexMe.as .

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Playing around with the powerful and versatile object Matrix (matrix), linked to the transformations, you can do weird things. These tools are used to apply particular transformations to a visual object, such as a sprite. You can, for example, scale, rotate, or twist (skew) a Sprite. e rotation ), per l'effetto Skew bisogna ricorrere direttamente alle matrici. While the first two functions (scale and rotation) Sprite objects (and others) provide directly the properties ( scaleX / scaleY , and rotation ), the skew effect should appeal directly to the matrices. What I would like to emphasize here is that when we modify a graphic object all its internal coordinates are shifted:

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