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POConverting Flash Perlin Function From ActionScript 1 to 3
 

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  1. POConverting Flash Perlin Function From ActionScript 1 to 3
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    <p>I have some code for Flash to simulate moving clouds. It worked under AS1 and now I have updated the FLA file to AS3 and minimum Flash version 10. What is wrong with this code? Can you help see what is wrong with this function? </p> <pre><code>function createLiquidFlow(target) { target.counter = 1; target.pt = new flash.geom.Point(0, 0); target.mpoint = new flash.geom.Point(0, 0); // target.myBitmap = new flash.display.BitmapData(target._width, target._height, false, 0); target.myBitmap = new flash.display.BitmapData(target.width, target.height, false, 0 ); target.myDispl = new flash.filters.DisplacementMapFilter(target.myBitmap, target.mpoint, 10, 2, 10, 15, "clamp"); target.myList = new Array(); target.myList.push(target.myDispl); target.filters = target.myList; target.addEventListener(Event.ENTER_FRAME, function () { trace("target.name = "+target.name); trace("target.myBitmap = "+target.myBitmap); trace("target.myBitmap.width = "+target.myBitmap.width); trace("target.myBitmap.height = "+target.myBitmap.height); trace("target.counter = "+target.counter); var filterList = target.filters; var offset = new Array(); offset[1] = new Object(); offset[1].x = target.counter; offset[1].y = target.counter / 2; target.myBitmap.perlinNoise(45, 6, 3, 50, true, false, 7, true, offset); filterList.mapBitmap = target.myBitmap; target.filters = filterList; ++target.counter; }); } createLiquidFlow( movieClipLiquid ) </code></pre> <p>I can trace the event listener, but the bitmap and Perlin function appears not to work. There is nothing visually happening in the output SWF. TIA</p> <pre><code>target.name = liquid74_mc target.myBitmap = [object BitmapData] target.myBitmap.width = 950 target.myBitmap.height = 76 target.counter = 1 myFilterList = [object DisplacementMapFilter] BEFORE myFilterList.mapBitmap = undefined AFTER myFilterList.mapBitmap = [object BitmapData] BEFORE target.filters = [object DisplacementMapFilter] AFTER target.filters = [object DisplacementMapFilter] target.name = liquid74_mc target.myBitmap = [object BitmapData] target.myBitmap.width = 950 target.myBitmap.height = 76 target.counter = 2 myFilterList = [object DisplacementMapFilter] BEFORE myFilterList.mapBitmap = undefined AFTER myFilterList.mapBitmap = [object BitmapData] BEFORE target.filters = [object DisplacementMapFilter] AFTER target.filters = [object DisplacementMapFilter] </code></pre>
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    1. USpeter_pilgrim
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    1. COAre you running the swf so you can see runtime errors, like in Flash CS IDE or Flash Builder or using the debug version of Flash Player? If so, do you see any error messages? One thing is that the event handler function needs to take one argument, the event object, even if you don't use it. An object will be sent to the handler, and the function needs to match was is sent. So like .addEventListener(Event.ENTER_FRAME, function(e:Event) ... instead of what you have now. Also shouldn't you use offset[0] instead of offset[1] (arrays being zero-based)?
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      1. POConverting Flash Perlin Function From ActionScript 1 to 3
      1. USLars Blåsjö
    2. COI am using Flash CS55 Professional. There are no errors. I added the event handler parameter function(e:Event). I also tried the offset[0] and no change.
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      1. USpeter_pilgrim
    3. COThank you Lars for helping me narrow down this issue. Also I like to thank the Flep Studio guy who did this http://www.flepstudio.org/forum/tutorials/629-actionscript-3-0-perlinnoise-method.html
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      1. POConverting Flash Perlin Function From ActionScript 1 to 3
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