I start creating my flash game using Flashpunk, for collisions i didn't want to use hitboxes because i had images (PNG) with transparent parts in them so i decided to use Collision Detection Kit, i have a problem when creating the collision list, it takes a display object as a parameter and doesn't accept flash punk spritemaps, i tried to cast the spritemap to a flash display object but it's not working, is there a way to use the CDK with flashpunk ?
override public function begin():void
{
_player = new Player(100, 100);// Entity
initCollision(_player.sprPlayer);// The Entity Spritemap
}
private function initCollision(player:Spritemap):void {
collisionChecker = new CollisionList(player); // Problem here
}
Well, you could create an empty BitmapData with the same width & height of your Spritemap and then "render" it to that BitmapData, like so:
var bmd:BitmapData = new BitmapData(64, 64, true, 0);
var sprite:Spritemap = _player.sprPlayer;
sprite.render(bmd, new Point(0,0), new Point(0,0));
collisionChecker = new CollisionList(bmd);
That should draw the spritemap's current frame to a BitmapData which you could then use for the CollisionList. The code above is an example that only demonstrates how to do this. For your actual code, it would be better to avoid constantly initializing new variables during your collision detection.
Related
I've created a series of classes that can be used to generate and render images. I want to store a copy of the last frame displayed so I can mix it with the current frame to create a video sustain effect. A brief overview of the classes involved in this example:
MasterContainer: a subclass of Sprite used as the main display object. Generative classes are placed in the MasterContainer, and redrawn when the container is told to render
CustomWave: a subclass of Shape used to contain, draw, and manipulate a GraphicsPath object. One of the aforementioned 'generative classes'
My current attempt involves the use of two MasterContainer objects - one for the current frame, and one for the last frame. If I'm not mistaken, the current appearance of one MasterContainer (and its children) can be copied to the other with a command like lastMaster.graphics.copyFrom(master.graphics);. Consider the following code:
var time:Number;
var master:MasterContainer = new MasterContainer(); //current frame
var lastMaster:MasterContainer = new MasterContainer(); // last frame
var wave:CustomWave = new CustomWave(new <Number>[0,0,0,0],0xffffff,5); //generator for current frame
master.RegisterComponent(wave); //adds CustomWave and registers with the rendering loop
addChild(lastMaster); //add last frame to stage
addChild(master); //add current frame to stage
addEventListener(Event.ENTER_FRAME, perFrame);
function perFrame(event:Event):void{
time = 0.001 * getTimer();
lastMaster.graphics.copyFrom(master.graphics); //copy previous frame's graphics
UpdatePoints(); //update the path of the CustomWave
UpdateColor(); //update the color of the CustomWave
master.fireRenderCannon(); //redraw objects registered to master
}
This seems to work in theory, but as far as I can tell lastMaster ends up with no visible graphics content even though master renders as expected. I've tried several times to test whether this is the case, and am pretty convinced that that it is, but am newish to AS3 and am concerned I am overlooking something - the code looks like it should work. Does anyone have suggestions on how to test this properly? Are there obvious defects within this code that would cause lastMaster to be visually blank? Is there an better way of accomplishing my goal?
I think I'm in over my head on this... I would love any input. Thanks!
After you copied graphics, what do you try to do with it?
Method copyFrom works as clocks, without any problems. Isn't here logic bug in your code?
function perFrame(event:Event):void{
time = 0.001 * getTimer();
lastMaster.graphics.copyFrom(master.graphics); //Here
//master.graphics.copyFrom(lastMaster.graphics);
UpdatePoints();
UpdateColor();
master.fireRenderCannon();
}
Example of copyFrom, it works fine with any complexity of graphics:
var complex: Shape = new Shape();
adobeExample(complex.graphics);
var test2: Shape = new Shape();
test2.graphics.copyFrom(complex.graphics);
addChild(test2);
private function adobeExample(graphics: Graphics):void{
// define the line style
graphics.lineStyle(2,0x000000);
// define the fill
graphics.beginFill(0x666699);//set the color
// establish a new Vector object for the commands parameter
var star_commands:Vector.<int> = new Vector.<int>();
// use the Vector array push() method to add moveTo() and lineTo() values
// 1 moveTo command followed by 3 lineTo commands
star_commands.push(1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2);
// establish a new Vector object for the data parameter
var star_coord:Vector.<Number> = new Vector.<Number>();
// use the Vector array push() method to add a set of coordinate pairs
star_coord.push(0,0, 75,50, 100,0, 125,50, 200,0, 150,75, 200,100, 150,125, 200,200, 125,150, 100,200, 75,150, 0,200, 50,125, 0,100, 50,75, 0,0);
graphics.drawPath(star_commands, star_coord);
}
After the comments made by Bennet and Nicolas, it became obvious that my requirements were (nearly) impossible without a fair amount of redesign. The changes made are as follows:
Generators are no longer DisplayObjects. They are only used to calculate vectors containing the IGraphicsData objects necessary to draw the generated graphic with the drawGraphicsData method.
MasterContainer is now a shape subclass that retrieves the Vector.<IGraphicsData> from each registered generator in order to draw the output.
A bitmap subclass is used to render the contents of the MasterContainer, combining it with a color-dampened version of the previous frame.
An abridged version of the bitmap subclass:
private var constantSustain:Number;
private var linearSustain:Number;
private var sustain:ColorTransform;
private var lastFrame:BitmapData;
public function BitmapManipulator(constantSustain:Number = 0.998, linearSustain:Number = 0.98) {
this.constantSustain = Math.min(Math.max(constantSustain, 0), 1);
this.linearSustain = Math.min(Math.max(linearSustain, 0), 1);
this.UpdateSustain();
this.addEventListener(Event.ADDED_TO_STAGE, OnAddedToStage)
}
private function UpdateSustain():void {
var constantRelease:Number = 255 * (this.constantSustain - 1);
this.sustain = new ColorTransform(this.linearSustain, this.linearSustain, this.linearSustain, 1,
constantRelease, constantRelease, constantRelease, 0);
}
private function OnAddedToStage(event:Event) {
this.lastFrame = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0);
}
public function DrawFrame(container:MasterContainer):void {
this.lastFrame.draw(container);
this.bitmapData = lastFrame;
this.lastFrame = this.bitmapData
this.lastFrame.colorTransform(getBounds(this), this.sustain);
}
...and finally the results #60fps when using an indigo sine wave of shifting phase as the input for the CustomWave:
Does anyone know of any libraries or tools for importing an SVG file into actionscript on the fly? I need to be able to import an SVG file into flash and convert it to a movieclip or preferably a flat 3d object. The end goal here is to implement a vector file with Augmented reality.
A great library for this can be downloaded here: http://code.google.com/p/as3svgrendererlib/
It is easy to implement and reliable. Note that there are two ways to implement the code. I prefer the following because it gives you more control:
private function loadSVG(url:String):void {
ProcessExecutor.instance.initialize(stage);
ProcessExecutor.instance.percentFrameProcessingTime = 0.9;
loader = new URLLoader();
loader.dataFormat = URLLoaderDataFormat.TEXT;
loader.addEventListener(Event.COMPLETE, svgLoaded, false, 0, true);
try {
loader.load(new URLRequest(url));
} catch (error:Error) {
trace(error);
}
}
private function svgLoaded(e:Event):void {
var svgString:String = loader.data as String;
var svgDocument:SVGDocument = new SVGDocument();
svgDocument.parse(svgString);
this.addChild(svgDocument);
}
The other way is shorter and might be the way to go when you only have to load a small SVG or just a few.
public function loadSVG(url:String) {
ProcessExecutor.instance.initialize(stage);
ProcessExecutor.instance.percentFrameProcessingTime = 0.9;
var svgDocument:SVGDocument = new SVGDocument();
svgDocument.load(url);
addChild(svgDocument);
}
Two important notes:
1. I could not seem to be able to capture the width or height of the SVGs and the parent Sprite had a width and height of 0 after loading the SVG. I solved this by making all the SVGs the same size before loading them into AS3. After that I knew the dimensions I used the ScaleX and scaleY to resize the loaded SVGs.
2. The stage has to exist before you can use this code. adding the following code will make sure you won't run into problems:yourDisplayClass.addEventListener(Event.ADDED_TO_STAGE, loadYourSVGs);
Now how you convert this to a flat 3D object depends on your 3D Library. I have worked with Away3D where you can use bitmapmaterial on your Sprite3D. The Sprite3D class would be the object to use. I hope your 3D Library supports the use of MovieClips so that you can add them to your 3D Object. Else you will have to use to extract the bitmapMaterial from the movie clip as i have done in the following example:
public function movieClipToBitmapMaterial(mc:MovieClip):BitmapMaterial {
var bmData:BitmapData = new BitmapData(mc.width, mc.height, true, 0xFFFFFF);
bmData.draw(displayObject);
return new BitmapMaterial(bmData);
}
Your input in the above function will be the movieclip onto wich you have loaded your SVG.
I am not sure of this but I think that by using this function you will loose the ability to scale as much as you like without loosing quality.
I hope my input was of some help!
Good luck
PS: don't forget to add the SWC from the link to your project and to check out the provided examples. Please note as well the excellent comment of shaunhusain on your original question. You might not have to use 3D Library.
Salam,
It is very easy:
Open the "name.svg" file in illustartror.
Save it as "name.ai"
Import it into the stage in flash, that is all.
I've spent all the day on this, it's time to ask for your help :)
I'm trying to do collision detection of two display objects, both have centered registration point.
On my stage I have fixed elements that when added to stage are pushed in an Array called "zoneUsed". All the displayObject in my project have the registration point in the center.
My goal is to click on the stage, and check if in the clicking coords I could create a circle. My plan was to create a Sprite for the new object, cycle on the zoneUsed array, and check if the new sprite have enough space to live.
Here my code so far:
private function checkSpaceForNewMarker (markerToCheck:Sprite):Boolean {
var isPossible:Boolean = true;
var bmdataToCheck:BitmapData = new BitmapData (markerToCheck.width, markerToCheck.height, true, 0);
var m:Matrix = new Matrix ();
m.tx = markerToCheck.width/2;
m.ty = markerToCheck.height/2;
bmdataToCheck.draw (markerToCheck, m);
for (var i:int = 0; i<zoneUsed.length; i++) {
trace ("*** CHECKING ****");
var bmddataOnTheTable:BitmapData = new BitmapData (zoneUsed[i].width, zoneUsed[i].height, true, 0);
var tableMatrix:Matrix = new Matrix ();
tableMatrix.tx = zoneUsed[i].width/2;
tableMatrix.ty = zoneUsed[i].height/2;
bmddataOnTheTable.draw(zoneUsed[i], tableMatrix);
if (bmdataToCheck.hitTest(new Point(markerToCheck.x, markerToCheck.y), 255, bmddataOnTheTable, new Point (zoneUsed[i].x, zoneUsed[i].y), 255)) {
trace ("COLLISION");
isPossible = false;
} else {
trace ("NO COLLISION");
isPossible = true;
}
}
return isPossible;
}
....But right now the results are weird. Depending on the zones, my traces work or not. What am I doing wrong?
The problem is , you are drawing 1/4 (quarter) part of every object.
BitmapData is not like a Shape, Sprite, MovieClip, and it crops all the pixels, when the drawing bounds is out of the bounds of (0,0,bitmapdata.width, bitmapdata.height) rectangle.
Just remove this lines:
m.tx = markerToCheck.width/2;
m.ty = markerToCheck.height/2;
and also
tableMatrix.tx = zoneUsed[i].width/2;
tableMatrix.ty = zoneUsed[i].height/2;
You don't need this translations.
Also your code may be cause for memory leak. You are creating bitmapdata, but do not dispose it. The garbage collector will not release the memory you have allocated.You must release memory explicitly. Call bitmapdata.dispose() every time you have no need of that bitmapdata.
I'm not sure that the origin of the bitmap has anything to do with the test itself. The very nature of the test would seem to imply that the hittest is based on the RGBA value of the two supplied bitmaps. Anyway rather than picking apart your own implementation I'll just refer you to a tutorial by Mike Chambers (adobe platform evangelist). http://www.mikechambers.com/blog/2009/06/24/using-bitmapdata-hittest-for-collision-detection/
Also for more flash tutorials check out www.gotoandlearn.com.
I am trying to build a portfolio application similar to the used by Whitevoid. I am using Flex 4 and Papervision3D 2. I have everything working except for one issue. When I try to load an external SWF as a material on one of the planes, I can see any native Flex or Flash components in their correct positions, but the papervision objects are not being rendered properly. It looks like the viewport is not being set in the nested swf. I have posted my code for loading the swf below.
private function loadMovie(path:String=""):void
{
loader = new Loader();
request = new URLRequest(path);
loader.contentLoaderInfo.addEventListener(Event.INIT, addMaterial);
loader.load(request);
}
private function addMaterial(e:Event):void
{
movie = new MovieClip();
movie.addChild(e.target.content);
var width:Number = 0;
var height:Number = 0;
width = loader.contentLoaderInfo.width;
height = loader.contentLoaderInfo.height;
//calculate the aspect ratio of the swf
var matAR:Number = width/height;
if (matAR > aspectRatio)
{
plane.scaleY = aspectRatio / matAR;
}
else if (matAR < aspectRatio)
{
plane.scaleX = matAR / aspectRatio;
}
var mat:MovieMaterial = new MovieMaterial(movie, false, true, false, new Rectangle(0, 0, width, height));
mat.interactive = true;
mat.smooth = true;
plane.material = mat;
}
Below I have posted two pictures. The first is a shot of the application running by itself. The second is the application as a MovieMaterial on a Plane. You can see how the button created as a spark object in the mxml stays in the correct position, but papervision sphere (which is rotating) is in the wrong location. Is there something I am missing here?
Man. I haven't seen that site in a while. Still one of the cooler PV projects...
What do you mean by:
I cannot properly see the scene rendered in Papervision
You say you can see the components in their appropriate positions, as in: you have a plane with what looks like the intended file loading up? But I'm guessing that you can't interact with it.
As far as I know, and I've spent a reasonable amount of time trying to make something similar work, the MovieMaterial (which I assume you're using) draws a Bitmap of whatever contents exist in your MovieClip, and if you set it to animated=true, then it will render out a series of bitmaps - equating animation. What it's not doing, is displaying an actual MovieClip (or SWF) on the plane. So you may see your components, but this is how:
MovieMaterial.as line 137
// ______________________________________________________________________ CREATE BITMAP
/**
*
* #param asset
* #return
*/
protected function createBitmapFromSprite( asset:DisplayObject ):BitmapData
{
// Set the new movie reference
movie = asset;
// initialize the bitmap since it's new
initBitmap( movie );
// Draw
drawBitmap();
// Call super.createBitmap to centralize the bitmap specific code.
// Here only MovieClip specific code, all bitmap code (maxUVs, AUTO_MIP_MAP, correctBitmap) in BitmapMaterial.
bitmap = super.createBitmap( bitmap );
return bitmap;
}
Note in the WhiteVoid you never actually interact with a movie until it "lands" = he's very likely swapping in a Movie on top of the bitmap textured plane.
The part that you are interacting with is probably another plane that holds the "button" that simply becomes visible on mouseover.
I think PV1.0 had access to real swfs as a material but this changed in 2.0. Sadly. Hopefully Molehill will.
cheers
I'm implementing an Augmented Reality application for android using Flash. In order to get the application working on my Android Phone (nexus One) the Phone Camera must be activated as well. So I need 2 layers one for the background which is the feed of my phone camera and an other one on top of it which is the view from away3d in this case.
So setting up a BitmapData object to hold the information of the most recent webcam still-frame I can make this work.
If I use papervision3D library and FLARToolkit we setting up the BitmapData using the following part of the code found from this video tutorial:
//import libraries
import org.libspark.flartoolkit.core.raster.rgb.FLARRgbRaster_BitmapData;
import org.libspark.flartoolkit.detector.FLARSingleMarkerDetector;
private function setupCamera():void
{
vid = new Video(640, 480);
cam = Camera.getCamera();
cam.setMode(320, 240, 10);
vid.attachCamera(cam);
addChild(vid);
}
private function setupBitmap():void
{
bmd = new BitmapData(640, 480);
bmd.draw(vid);
raster = new FLARRgbRaster_BitmapData(bmd);
detector = new FLARSingleMarkerDetector(fparams, mpattern, 80);
}
private function loop(e:Event):void
{
if(detector.detectMarkerLite(raster, 80) && detector.getConfidence() > 0.5)
{
vp.visible = true;
detector.getTransformMatrix(trans);
container.setTransformMatrix(trans);
bre.renderScene(scene, camera, vp);
}
else{
vp.visible = false}
}
catch(e:Error){}}}}
However, to implement my application Im using Away3D engine and FLARManager and the way of doing that is very different as I can understand. I have implement the following code but the only think it does is just show the Flash Camera in the front of the 3D view and I can't check if my application is work or not since it doesn't show me any 3D Object when I place the marker in front of the screen.
My code is:
//Setting Up Away3DLite Camera3D
import com.transmote.flar.camera.FLARCamera_Away3DLite;
private var camera3D:FLARCamera_Away3DLite;
this.camera3D = new FLARCamera_Away3DLite(this.flarManager, new Rectangle(0, 0, this.stage.stageWidth, this.stage.stageHeight));
//Setting Up the bitmapData
private function bitmap():void
{
c = Camera.getCamera();
c.setMode(320,240,10)
this.v.attachCamera(c);
addChild(this.v);
bmd = new BitmapData(640,480);
bmd.draw(this.v);
}
Can you please help me to find out how can I combine those two?
I will really appreciate any advice i can get from you.
Thank you
To isolate your problem, I'd try to break these two things up and make sure each part works first. It's sounds like you've got the camera part working, try doing just some 3D (no AR) draw a cube or something. Then try implementing the AR but have it do something simple like trace something out or making an object visible or invisible. Then start combining them.