I created a new entity and defined the entities graphic as a new Image from an embedded image files.
graphic = new Image(PLAYER);
PLAYER is an embedded image, now since graphic is this image now, I should be able to do things like centerOrigin() or angle(), but I can't? It worked in the Flash IDE but now that i've switched to Flash Builder for using flashpunk, It gives me an error 1119, cannot access property centerOrigin() through static type net.flashpunk:Graphic.
What am I doing wrong? A lot of tutorials say it should work. If it is supposed to work but the problem is the environment and not my program, what is a workaround?
Here's my actual code:
public class Projectile extends Entity{
public var bearingIN:Number;
public var speedIN:Number;
public function Projectile(bearing,speed,gunX,gunY) {
setHitbox(2,2);
bearingIN = bearing;
speedIN = speed;
graphic = new Image(new BitmapData(8,1,false,0xFFFF32));
type = "projectile";
graphic.centerOrigin();
graphic.angle = (bearing / (Math.PI/180))*-1;
layer = 255
x = gunX + 16;
y = gunY + 16;
addTween(new Alarm(20,removeProj,2), true);
}
private function removeProj(){
FP.world.remove(this);
}
public override function update():void{
x += Math.cos(bearingIN)*speedIN;
y += Math.sin(bearingIN)*speedIN;
if(collide("wall",x,y)){
removeProj();
}
}
}
The graphic property of the Entity class is of type Graphic. However, the Graphic class has no method called centerOrigin only Image does. So you need to cast it. Do this for the line with centerOrigin():
((Image)graphic).centerOrigin();
You'll have to do the same thing for angle as well.
Related
Kind of new Actionscript and I'm just trying to make a simple tamagoci game. I've wrote all the code out but and receiving no compiler errors but for some reason I'm also not receiving any output messages for my mouse event listeners. Here is all my code, I really can't find the problem and any help would be greatly appreciated. Thanks.
package{
import flash.display.MovieClip;
import flash.events.MouseEvent;
public class Main extends MovieClip{
public var feedButton:MovieClip;
public var tamagoci:MovieClip;
public var disButton:MovieClip;
public var dietButton:MovieClip;
public function Main() {
this.init();
}
private function init():void {
this.feedButton.addEventListener(MouseEvent.MOUSE_DOWN, onfeedMouseDownHandler);
this.disButton.addEventListener(MouseEvent.MOUSE_DOWN, ondisMouseDownHandler);
this.dietButton.addEventListener(MouseEvent.MOUSE_DOWN, ondietMouseDownHandler);
}
private function onfeedMouseDownHandler(event:MouseEvent)void{
this.tamagoci.scaleX += 0.1;
this.tamagoci.scaleY += 0.1;
}
private function ondisMouseDownHandler(event:MouseEvent)void{
this.tamagoci.gotoAndPlay(5);
}
private function ondietMouseDownHandler(event:MouseEvent)void{
this.tamagoci.scaleX -= 0.1;
this.tamagoci.scaleY -= 0.1;
}
Are you using Flash Professional?
You're declaring your variable types in your class here;
public var feedButton:MovieClip;
public var tamagoci:MovieClip;
public var disButton:MovieClip;
public var dietButton:MovieClip;
But then in your constructor, all you are doing is running init();
public function Main() {
this.init();
}
So, this could one of a few things. The most likely is that you have declared your variables, but you haven't initialised them. You've created the variables to hold your objects, but according to your code, they're empty. More specifically, a variable or class property that doesn't assign an object to a variable of an object type will contain a default value of null.
You could prove this in your code by simply putting a condition inside your init(); method;
if(tamagoci == null){
trace("I haven't been assigned an object of type class yet!")
}
So it could be 1 of these 3 things:
1: If you have written your own classes for these class properties/variables, then you need to instantiate them with the new keyword. The general syntax is;
variable_name = new ClassName(parameter_1, parameter_2);
If you are using classes you have written yourself, you have to create an instance of the object, assign it to a variable, and then add it to the stage using addChild();. For example, lets say you've written your own Tamagoci class;
tamagoci = new Tamagoci();
tamagoci.x = 100; // set the x location
tamagoci.y = 200; // set the y location
addChild(tamagoci);
Notice the use of Tamagoci. This is just an example, but this is the class name, which shouldn't be confused with variable/property name. It could just have easily been;
tamagoci = new MovieClip();
But then, this is just an empty MovieClip. It needs a property to display on the screen. A Shape, A Bitmap, or another container class object like MovieClip or Sprite (container classes allow you to nest display objects inside them). But on a basic level, it must contain a visual component to appear on the stage.
2:
Have you made Main your document class? This is the class which will get automatically called when your Flash movie plays. To set this, click on your stage, and in the properties dialogue box on the right, under PUBLISH, type in the name of your class, which is "Main".
3:
If you have created MovieClips in your library in Flash Professional, then you need to go to your library, right click the MovieClips, and select properties. From there, you need to make sure Export for Actionscript is ticked.
Now, if you click on your MovieClips on the stage, then open the Properties tab in the top right of Flash Professional's default layout, then right at the top should be a text field, and if you hover over it, Instance name will pop up as a tool tip. This is where you name your stage objects. Once that is done, you have access to them in your timeline.
If this is how you've done this, then you don't need to declare the variables in your main class, as they are already declared on your stage by Flash Professional and instantiated automatically.
I'm dabbling with game design and trying to create some characters for the game. Right now I've just created a single MovieClip that contains a rectangle. The MovieClip symbol extends a class that I've created in Flash Builder that implements the logic of a monster. I can then drag an instance of this monster symbol from the library to the stage and the code works when I run the simulation. So far, so good.
Now I want to create several monsters, all slightly different:
public class Monster extends MovieClip
{
public var isFriendly:Boolean = true;
public var strength:int = 10;
public var catchPhrase:String = "Booyah!";
public function Monster()
{
}
}
One way to do this is to write a new class for each monster that extends Monster and sets the properties I want in the constructor (I'd also have to create a unique symbol in the library for each of these variations too). However, this seems to be overkill if my monsters only differ by their property values.
Looking at the Flash Professional use interface, I see that at the very bottom of the Properties panel is a section that looks like a small table headed by 'Properties/Value'. Can I use this to somehow set the properties of my classes from within the Flash Professional UI? I can't find any info on how this is used.
Okay, I figured it out. The key is converting my symbol into a flash Component.
First I edited my ActionScript class to export the properties I wanted to set (including the Inspectable tag):
public class Monster
{
private var _catchPhrase:String;
public function Monster()
{
}
public function get catchPhrase():String
{
return _catchPhrase;
}
[Inspectable(name = "catchPhrase", type = String, defaultValue = "Booyah!")]
public function set catchPhrase(value:String):void
{
_catchPhrase = value;
}
}
Then I right clicked on the Monster symbol in my library and selected 'Component Definition...'. This brought up the Component Definition dialog. I then entered the name of my ActionScript class in the Class field and clicked the checkmark to validate it. Flash then automatically generated the properties I needed.
I also found this tutorial helpful:
http://redbjarne.wordpress.com/actionscript-3-0-custom-components-from-hell/
I have only 3 images that I'm working with for animating a running animal:
1: animal standing
2: animal in stride/jumping
3: animal on its back dead
Currently, I'm embedding them into the main class as sprites and changing their .alpha properties whenever I want one and not the other 2. Is there a better way to do what I'm doing? One of the annoying things is updating the properties for each sprite individually. It would be ideal to have one object and being able to change the image on the object so I would only have to change one object's properties.
For this it would be best to handle your animation in its own Class!
Something like this, let's say your animal is a horse so that's what I'll call the class
package {
import flash.display.Sprite;
public class Horse extends Sprite{
private var holder:Sprite = new Sprite();
public function Horse() {
var img1:Image1 = new Image1();// ur images from library
var img2:Image2 = new Image2();
var img3:Image2 = new Image3();
holder.addChild(img1);
holder.addChild(img2);
holder.addChild(img3);
addChild(holder);
setImage(0);// set 1st image visible
}
public function setImage(nr:uint):void
{
for(var i:int = 0; i < holder.length;i++;)
holder[i].visible = false;
holder[nr].visible = true;
}
}
}
then you would use it like this for example!
var horse:Horse = new Horse();
addChild(horse);
horse.x = 25;
horse.y = 25; // move the whole object(all 3 images)
horse.setImage(2);// or to whatever frame you need
Use the visible attribute instead of the alpha value. If u just set alpha to 0 it will still be rendered and cost cpu. if you set visible to false it will not be rendered!
EDIT: As Amy pointed out, blitting is a possibilty here to, although the fastest aproach would be BitmapData Frame Assignment!
Here you keep all your Frames as BitmapData in a Vector, which you load from a SpriteSheet and just assign the new BitmapData to your Bitmap instead of using copyPixels. It's faster then blitting and you still have all your builtin methods availible!!
I have a number of instances of a movieClip on the stage in Flash. I would like to be able to add a dynamic variable to each. For example, I would like to number each instance.
I have tried giving each instance an instance name (eg. box1, box2) and writing the following code in the layer 1 > frame 1 code window
box1.number = 1;
box2.number = 2; etc.
or
box1["number"] = 1;
box2["number"] = 2;
but the variables are undefined when trying to access them in Flash builder.
You should create a custom class for all your movieClips to extend (use as a base class). If you don't know how to do this, create the following MyCustomClassName.as file in the root of your .fla directory.
package {
public class MyCustomClassName extends Sprite { //use MovieClip is your box makes use of the timeline
public var myNumber:int = 0;
public function MyCustomClassName(num:int = 0) {
myNumber = num;
}
}
}
Then on your box object, right click it in the library and bring up the properties/linkage. Set the base class to the path to your custom class .as file
You can leave everything the same and now your boxes will inherit all properties and functions in that base class.
myBoxInstance.myNumber = 5;
OR if instantiating through code:
var box:MyCustomClassName = new MyCustomClassName(5); //creates a new box giving it the number 5
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