I'm fairly new at ActionScript 3 but I am working on it and trying to learn by reading and modifying ActionScript source codes.
So far so good, however I stumbled upon one problem which I seemingly can't solve by myself. It should be faily simple for you guys tho.
The situation:
I got one "object" which is clickable and gives a random value which is also being saved in a variable.
I got another "object" which does the same thing but only has a different name.
I want the variable from the first object to be passed to the second one, how can I do it?
One way to pass values relies on using references to objects...
// mc1 and mc2 exist as movieclips on the stage
mc1.addEventListener( MouseEvent.CLICK, onClick );
mc2.addEventListener( MouseEvent.CLICK, onClick );
function onClick( event:MouseEvent ):void
{
// reference clicked movieclip through click target
var mc:MovieClip = event.target as MovieClip;
// if our clip matches one, assign the other clip the value.
if ( mc === mc1 )
{
mc2.value = mc.value;
}
else if ( mc === mc2 )
{
mc1.value = mc.value;
}
}
There's a thousand ways to pass references around, and this is just one.
OK guys let me show you the important parts of the code (cant show it all since I paid for it and I don't know whether the author woudl be OK with me publishing all of it).
I got these two objects there. When I click on one of the objects (which is a DICE), it gives me this code basically
var faceValue:int = 6;
// Add mouse click functionality to roll the die
addEventListener(MouseEvent.CLICK, onClickDie, false, 0, true);
mouseChildren = false;
buttonMode = true;
function onClickDie(e:MouseEvent):void {
removeEventListener(MouseEvent.CLICK, onClickDie);
buttonMode = false;
// Initiate the roll-out sequence
if(faceValue == 6) {
gotoAndPlay("rollout6");
etc...
Then somewhere in the frame where it is SPINNING the dice it is randomizing a number and save it into facevalue
// Calculate a random face value between 1 and 6
faceValue = 1 + Math.floor(Math.random()*6);
// Initiate the roll-in sequence
if(faceValue == 6) {
gotoAndPlay("rollin6");
...etc
Now how can I get the randomized facevalue from the spinning the dice frame to pass it to the other dice?
Related
i am using AS3 to create a function that will automatically play a movieclip all the way through and then remove it. my project is going to have a lot of animated cutscenes, so id like to be able to call this function, use the cutscene id like as a parameter, and then move on to the next. the problem is, im trying to use the function multiple times in a row to play clips sequentially, but they're all playing at the same time. is there a fix, or a better way to do this altogether?
playClip(new a_walk); //find a way to make these stop playing at the same time
playClip(new a_door);
//a_walk and a_door are the AS linkage class names for the movieclips im referring to
function playClip (clip:MovieClip):void {
addChildAt(clip, 0);
clip.mask = myMask;
clip.x=412.4;
clip.y=244.5;
clip.addEventListener(Event.ENTER_FRAME, checkframes);
function checkframes(event:Event) {
if (clip.currentFrame == clip.totalFrames) {
//trace("wow! youre an idiot!");
if (clip.parent) {
clip.parent.removeChild(clip);
trace (100);
return;
}
}
}
}
Sounds like you want a mechanism to play a queue of MovieClips? If so, here is a way you can accomplish this:
//create an array with the clips you want to play (in order), in my example here, the items can be a MovieClip derived Class, or a MovieClip instance
var playQueue:Array = [a_walk, a_door];
//create a var to store the currently playing clip
var currentClip:MovieClip;
playNext(); //call this when you want the queue of clips to start playing
function playNext():void {
//if there was an item previously playing (currentClip has a value), stop it and remove it/dispose of it
if(currentClip){
currentClip.stop(); //stop it from playing
currentClip.addFrameScript(currentClip.totalFrames-1, null); //remove the frame script that was added
currentClip.parent.removeChild(currentClip); //remove it from the display
currentClip = null;
}
//check if there's anything left to play
if(playQueue.length < 1) return;
var nextItem:* = playQueue.shift(); //shift retrieves and removes the first item in the array;
if(nextItem is Class){
//if it's a class, instantiate it
currentClip = new nextItem();
}else{
currentClip = MovieClip(nextItem);
}
//initialize the movie clip
addChildAt(currentClip, 0);
currentClip.gotoAndPlay(1);
//this is just what you were doing before:
currentClip.mask = myMask;
currentClip.x=412.4;
currentClip.y=244.5;
//add a command on the last frame of the movie clip to play the next item in the queue
currentClip.addFrameScript(currentClip.totalFrames-1, playNext);
//addFrameScript is 0 based, so 0 would refer to the first frame. This is why we subtract 1 to get the last frame
}
I should note, that addFrameScript is an undocumented function. It serves as a nice shortcut so you don't have to have an ENTER_FRAME listener checking currentFrame vs. totalFrames. Being undocumented however, one can not count on it's continued existence in future versions of the Flash/AIR runtimes (though it's been around for a long long time)
note
This answer is a work in progress. I'm waiting on a response from the OP.
// playClip(new a_door); don't call this yet, or they will just both play.
var clipData:CustomClass = new CustomClass(); // add an instance of a custom class to hold the value of the movie
//clip being played (so that you can use this value later in the event handler.)
// it will also hold a value of the next clip
clipData._currentClip = a_walk;
clipData._nextClip = a_door;
playClip(new a_walk);
function playClip (clip:MovieClip):void {
addChildAt(clip, 0);
clip.mask = myMask;
clip.x=412.4;
clip.y=244.5;
clip.addEventListener(Event.ENTER_FRAME, checkframes);
}
function checkframes(event:Event) {
if (clipData._currentClip.currentFrame == clipData._currentClip.totalFrames) {
//trace("wow! youre an idiot!");
if (clipData._currentClip.parent) {
playClip(clipData._nextClip);
clipData._currentClip.parent.removeChild(clipData._currentClip);
clipData._currentClip = clipData._nextClip; // moves the clips down
//clipData._nextClip = here we have
//a problem. Do these clips play in a set
//order, first to last? Or do the play out of
//order jumping back and forth? If so, how
//are you planning on controlling which clip
//plays next?
trace (100);
return;
}
}
}
I haven't checked this in Flash yet to see if it works, but I noticed that you are defining a function inside another function, which I don't think is good practice, so this might clean things up for you. Give it a try and let us know.
I'll try to fix my code above when I get a chance. In the meantime, you answered my question about playing the clips in order, so a simple solution would be to put all the clips in an array and then play them by playClip(clipArray[i]) and then when the clip ends and gets removed, do i++ and call the same function playClip(clipArray[i]) which will play the next clip in the array.
I am new to the actionscript side of flash,
I am working on a map that has say 20 popups(movieclips) and the countries are the buttons, i have just been informed i need to add 60 more.
Below is an example of the code i have been using
english_movie.visible=french_movie.visible=turkish_movie.visible=false
english_btn.addEventListener(MouseEvent.CLICK, englishButtonClick);
french_btn.addEventListener(MouseEvent.CLICK, frenchButtonClick);
turkish_btn.addEventListener(MouseEvent.CLICK, turkishButtonClick)
function englishButtonClick(event:MouseEvent):void {
english_movie.visible=true;
english_movie.play();
french_movie.visible=turkish_movie.visible=false
}
function frenchButtonClick(event:MouseEvent):void {
french_movie.visible=true;
french_movie.play();
english_movie.visible=turkish_movie.visible=false
}
function turkishButtonClick(event:MouseEvent):void {
turkish_movie.visible=true;
turkish_movie.play();
english_movie.visible=french_movie.visible=false
}
Im thinking there must be an easier way to do this than replicating the code over and over.
Any help would be much appreciated.
Here's how to simplify the whole thing with code: Each btn object is
related to one movie object. This can be achieved with a Dictionary.
var btnToMovieAssociation:Dictionary = new Dictionary();
btnToMovieAssociation[english_btn] = english_movie; // repeat this line for every btn/movie pair
Now you have to generalise your click handler. The key difference
between each function (apart from making one certain movie visible)
is that they all make certain other movies invisible. But actually,
it's sufficient to only make the previously visible movie invisble.
To do this, create a variable that keeps track of the current visible
movie.
var currentMovie:MovieClip = english_movie;
Initialising the variable with english_movie has no effect on the
program. you can pick any other of the movies. It will make things
easier in the following code if this variable is initialised.
Now your function does effectively this:
make movie of clicked button visible
play this movie
make last movie invisible
Here's the cool part. You only add one listener. Look up if something
is in the dictionary for the clicked thing and consider that the
movie you want to show next.
addEventListener(MouseEvent.CLICK, buttonClick);
function buttonClick(event:MouseEvent):void
{
var movie:MovieClip = btnToMovieAssociation[event.target]
if (movie == null)
return; // nothing in the dictionary, it wasn't a button that was clicked.
movie.visible=true;
movie.play();
currentMovie.visible = false;
currentMovie = movie;
}
There are problems with this solution:
You still have to declare every pair, which is still tedious and prone to erro. (you have to type every name twice)
If your buttons are made up of several objects, event.target might point to them instead of the button as a whole. But with only
the btns in the dictionary and not all their individual parts,
nothing would be found in the dictionary. This can be circumvented by
setting mouseChildren = false; on every btn.
i posted this question else where and got this response
var tl:MovieClip=this;
var mc:MovieClip;
var i:int;
var buttonA:Array=[english_btn,french_btn,turkish_btn];
for(i=0;i<buttonA.length;i++){
buttonA[i].addEventListener(MouseEvent.CLICK,buttonF);
tl[buttonA[i].name.split("_")[0]+"_movie"].visible = false;
}
function buttonF(e:MouseEvent):void{
for(i=0;i<buttonA.length;i++){
tl[buttonA[i].name.split("_")[0]+"_movie"].visible = false;
}
tl[e.currentTarget.name.split("_")[0]+"_movie"].visible=true;
}
Which works great.
I have about 50 symbols that I want to make draggable. Nothing fancy, just the ability to click it and drag it to a different location.
I found as3 code for doing so but when I paste it into my file it gives me errors:
**Error** Scene=Scene 1, layer=Units, frame=1:Line 9: The class or interface 'MouseEvent' could not be loaded.
function mouseDownHandler(evt:MouseEvent):void {
That code is:
// Register mouse event functions
fighter_uk.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler);
fighter_uk.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
fighter_uk.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler);
fighter_uk.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
// Define a mouse down handler (user is dragging)
function mouseDownHandler(evt:MouseEvent):void {
var object = evt.target;
// we should limit dragging to the area inside the canvas
object.startDrag();
}
function mouseUpHandler(evt:MouseEvent):void {
var obj = evt.target;
obj.stopDrag();
}
I'm using flash pro 8, so I tried finding as2 code but couldn't find it.
Also, is there an 'easy' way to code all 50 objects?
I think you're trying to compile AS3 code with AS2 compiler. Try changing your compilation settings to target AS3.
Also you may need to include the class import at the top of your code:
import flash.events.MouseEvent;
To drag 50 objects, add them all on the same container sprite and add the listener to the container sprite only:
var holder:Sprite = new Sprite();
for ( var i:int = 0, l:int = 50; i < l; i++ ) {
var dragee:YOUR_CUSTOM_OBJECT = new YOUR_CUSTOM_OBJECT();
holder.addChild(dragee);
}
addChild(holder);
holder.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler);
holder.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
holder.addEventListener(Event.MOUSE_LEAVE, mouseUpHandler);
var currentDragee:YOUR_CUSTOM_OBJECT = null;
function mouseDownHandler(evt:MouseEvent):void {
currentDragee = evt.target as YOUR_CUSTOM_OBJECT;
if ( currentDragee !== null ) {
currentDragee.startDrag();
holder.addChild(currentDragee); // bring current to front position
}
}
function mouseUpHandler(evt:Event):void {
if ( currentDragee !== null ) currentDragee.stopDrag();
currentDragee = null;
}
YOUR_CUSTOM_OBJECT being the object class you need to drag. Hope it helps!
This page seems to have the answers you are looking for (AS2 drag and drop). If you've already seen it, you'll need to explain why it's not good enough for your needs.
If you want to drag/drop multiple instances in AS2, you can still add the code to the movieClip symbol, export it from the library and load the instances up using attachMovie (all 50 of them). If they are all different, then attach the code as necessary to the clips themselves, or to some function elsewhere that will capture all the clicks and decide what was clicked. This is all very doable in AS2.
Remember you can use your onClipEvent(load) function to set up a lot of the initial lifting.
Here's a sample I made in AS2 for making a node tree. It's all draggable (mouse drag) and zoomable (with mouse Wheel). You can add nodes by clicking on the little down arrow in the node box. Each node is listening for the mouse.
You'll want to look at this section for the most part:
// Enable drag on button press
on (press)
{
startDrag(this);
}
// Stop the drag on release of mouse button
on (release)
{
stopDrag();
}
Besides this, I'm not really sure how your setup looks, so I hope this helps get the ball rolling. (Check the link, there's lots of little gems in there).
Flash Professional 8 only supports ActionScript 2 & 1
You can follow this official URL and learn how to do that in ActionScript 2, but I extremely recommend you to work with ActionScript 3.
I have 5 layers with symbols on each: a, b, c, d and e.
I am trying to work out how to apply the action bellow to a, c, d and e when you hover over b.
Also is there another action similar to ' gotoAndStop(0); ' that instead of going immediately to frame 0 it goes back the way it came?
Link to .Fla http://www.fileden.com/files/2012/11/27/3370853/Untitled-2.fla
stop();
stage.addEventListener(MouseEvent.MOUSE_OVER, playMovie); function playMovie(event) { play(); }
stage.addEventListener(MouseEvent.MOUSE_OUT, stopMovie); function stopMovie(event) { gotoAndStop(0); }
stop();
Thanks
EDIT
After looking at your .fla, here is what is missing/misplaced:
Layers in flash don't mean anything other than z-order/depth. You cannot manipulate a layer in code. All your animations are on the same timeline, so they will always play together. If you want an individual item to animate without the others, you'll have to do the animation on it's own timeline (not just it's only layer). You access your symbols own timeline by double clicking it - do your animation in there.
To reference items that are on the stage, you need to give them an instance name. You do that by clicking on the item that's on the stage, then in properties panel, there is field where you can put in an instance name. For the code below to work, you'd need to give them an instance name of "a","b","c","d","e" respectively. This is different than the symbol name in your library (though it can be the same name).
One way you could do this:
var btns:Vector.<MovieClip> = new Vector.<MovieClip>(); //create an array of all your buttons
btns.push(a,b,c,d,e); //add your buttons to the array
for each(var btn:MovieClip in btns){
btn.addEventListener(MouseEvent.MOUSE_OVER, btnMouseOver); // listen for mouse over on each of the buttons
btn.addEventListener(MouseEvent.MOUSE_OUT, btnMouseOut);
}
function btnMouseOver(e:Event):void {
for each(var btn:MovieClip in btns){ //loop through all your buttons
if(btn != e.currentTarget){ //if the current one in the loop isn't the one that was clicked
btn.play();
try{
btn.removeEventListener(Event.ENTER_FRAME,moveBackwards); //this will stop the backwards animation if running. it's in a try block because it will error if not running
}catch(err:Error){};
}
}
}
function btnMouseOut(e:Event):void {
for each(var btn:MovieClip in btns){ //loop through all your buttons
if(btn != e.currentTarget){ //if the current one in the loop isn't the one that was clicked
goBackwards(btn);
}
}
}
There is no nice way to play a timeline backwards, but there are ways to do it. One such way:
//a function you can call and pass in the item/timeline you want played backwards
function goBackwards(item:MovieClip):void {
item.stop(); //make sure the item isn't playing before starting frame handler below
item.addEventListener(Event.ENTER_FRAME, moveBackwards); //add a frame handler that will run the moveBackwards function once every frame
}
//this function will move something one frame back everytime it's called
function moveBackwards(e:Event):void {
var m:MovieClip = e.currentTarget as MovieClip; //get the movie clip that fired the event
if(m.currentFrame > 1){ //check to see if it's already back to the start
m.prevFrame(); //if not move it one frame back
}else{
m.removeEventListener(Event.ENTER_FRAME,moveBackwards); //if it is (at the start), remove the enter frame listener so this function doesn't run anymore
}
}
Im've created a timer that starts every 1 second.
This is the code what's happening every 1 second.
var Random_Value_X:Number = Math.ceil(Math.random() * 1500);
var Random_Value_Y:Number = Math.ceil(Math.random() * 2000);
var enemy:MovieClip = new AI(stage);
addChild(hero);
enemy.x = Random_Value_X;
enemy.y = Random_Value_Y;
Ok. Then I got the class called AI where I've made it so the AI follows my player. The thing is, I need to make a hitTest that testes if an AI hitting another AI? Is there a way I can give every new AI a ID? Like the first gets called "AI1" and second AI2" and then I can make a code that says like If(AT1.hitTestObject(AT2 || AT3))
Hope you understand what I trying to explain! :)
You should just put them all in an array. Then you can loop through the array and do the hit testing for each one. Depending on how many you have, you might need to split them up into groups so you don't have to do so many checks each frame.
I'm pretty sure you can't just use logical or in the hitTestObject method like that.
Considering that you are on root and keyword "this" referring root. If you make instance of class "enemy" then all objects of it will have type "enemy".
import flash.events.Event;
// for every enemy you create, addlistener to it
// it will force to check itself with others
enemy.addEventListener(Event.ENTER_FRAME,checkHit);
// this function will be available to all enemies
// will inform itself that it is hiting enemy instance
function checkHit(e:Event){
// for e.g. object is moving in x direction
// to keep it simple so you can run it in new file
// with two object one is called enemy and other enemy1
// in your case its changing position
e.target.x += 1;
// loop with all children, break when hit someone
for(var i:uint=0;i<this.numChildren;i++){
// in current situation e.target is also a child of root
// therefore avoid checking it
if(e.target==this.getChildAt(i)) continue;//trace("Its me");
// if hit
// currently testing hit with all objects on stage
// you can change it to check specific type
if(e.target.hitTestObject(this.getChildAt(i))){
trace("I got hit by: "+this.getChildAt(i).toString());
break;
}
}
}