{"id":720,"date":"2009-01-21T09:00:07","date_gmt":"2009-01-21T08:00:07","guid":{"rendered":"http:\/\/www.matthijskamstra.nl\/blog\/?p=720"},"modified":"2009-01-13T23:21:37","modified_gmt":"2009-01-13T22:21:37","slug":"from-as2-to-as3-where-did-it-go-random","status":"publish","type":"post","link":"https:\/\/www.matthijskamstra.nl\/blog\/2009\/01\/21\/from-as2-to-as3-where-did-it-go-random\/","title":{"rendered":"From AS2 to AS3 – Where did it go – random"},"content":{"rendered":"

This is one that I figured out pretty quick.<\/p>\n

What has the ActionScript 2.0 Migration<\/a> to say about this subject:<\/p>\n\n\n\n
ActionScript 2.0 <\/strong><\/td>\nActionScript 3.0 <\/strong><\/td>\nComments<\/strong><\/td>\n<\/tr>\n
random()<\/td>\nMath.random()<\/td>\nRemoved. Use Math.random() instead.<\/td>\n<\/tr>\n<\/table>\n

I could have seen that coming:<\/p>\n

Deprecated since Flash Player 5. This function was deprecated in favor of Math.random().
\nReturns a random integer between 0 and one less than the integer specified in the value parameter.\n<\/p><\/blockquote>\n

Source: as2 help documentation.<\/em><\/p>\n

I was still using it a in Flash 6 and higher, but now I have to change that habit.<\/p>\n

And now we come to an annoying point: if you go to the as3 help documentation you only get an explanation but not a nice piece of example code. I don’t know why they changed that, but I don’t like it.<\/p>\n

So this is the explanation from the as3 help for Math.random()<\/p>\n

Returns a pseudo-random number n, where 0 <= n < 1. The number returned is calculated in an undisclosed manner, and pseudo-random because the calculation inevitably contains some element of non-randomness. <\/p><\/blockquote>\n

with some example code from as2 (functionality isn’t changed)<\/p>\n

[as]
\n\/\/ The following example outputs 100 random integers between 4 and 11 (inclusively):
\nfunction randRange(min:Number, max:Number):Number {
\n var randomNum:Number = Math.floor(Math.random() * (max – min + 1)) + min;
\n return randomNum;
\n}
\nfor (var i = 0; i < 100; i++) {\n var n:Number = randRange(4, 11)\n trace(n);\n}\n[\/as]\n\nthe way I using it was somewhat simpler then the example\n\n\n

AS 2<\/h3>\n

There are a couple of ways to do that in ActionScript 2:<\/p>\n

Example #1<\/strong>
\n[as]random(10)+1; \/\/ to get a number between 1 and 10 (1 and 10 included)[\/as]<\/p>\n

AS 3<\/h3>\n

Lets try this in ActionScript 3:<\/p>\n

Example #1<\/strong>
\n[as]Math.floor(Math.random()*10)+1; \/\/ to get a number between 1 and 10 (1 and 10 included)[\/as]<\/p>\n

Just make a snippet out of it, and you have never to search for this answer…<\/p>\n","protected":false},"excerpt":{"rendered":"

This is one that I figured out pretty quick. What has the ActionScript 2.0 Migration to say about this subject: ActionScript 2.0  ActionScript 3.0  Comments random() Math.random() Removed. Use Math.random() instead. I could have seen that coming: Deprecated since Flash Player 5. This function was deprecated in favor of Math.random(). Returns a random integer between 0 and […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,172,3],"tags":[68,39,97,229,398,114,168,242],"class_list":["post-720","post","type-post","status-publish","format-standard","hentry","category-as3","category-as3-migration","category-flash","tag-actionscript","tag-as2","tag-as2-to-as3","tag-documentation","tag-flash","tag-from-as2-to-as3","tag-migration","tag-pseudo-random-number"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t