So there’s no built in method to truncate a number in actionscript. Well a bit of playing around and a simple work around is just as good.
As most of you will know String’s can be truncated via substr();.
Well just typecast your value to be truncated to a String, call the substr(), using the length of the string minus your amount of digits to trincated, then typecast it back to a Number.
Code:
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| function truncate(val:String,truncCount:uint):String
{
return val.substr(0,val.length-truncCount);
} |
To use:
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| var num:Number = 56.673856;
trace(num)//56.673856
num = Number(truncate(num.toString(),5));
trace(num)//56.6 |
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Playing around with isometrics, perlin noise and sine waves. Something I have wanted to do for a while.
Anyway first app uses perlin noise for height or y pos depending if floating or not, click to toggle floating and randomise the x and y offset’s for the perlin noise.
The second app is using a simple sine wave accross a grid, well the first isometric block is using a sine, the rest just of the blocks just set their height or y pos to the one before it, again click to toggle floating.
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Yet some more of the book, not long after i posted the flutterby experiments.
Renders very quick but kinda expected it to as it is very simple, 3D maybe…?
Click to generate a new set of coloured cross sections…
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Another bit of the book, and also a bit of ceverage by Keith at artfromcode.
Decided to optimize as much as possible and results were good, first app click to create a new butterfly at mouse’s coordinates.
Second app ‘Butterfly Trails’, every tenth of a second a new butterfly is created and pointing towards the mouse [cheap effect i know but looks good
], runs quite smoothly even on an older system
.
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