I have a chunk of code here that should allow me to switch between frame 1 and 2, which are different levels, once the object is reached and the down key is pressed. But It doesn't work... at all. I keep getting error 1010, A Term is undefined and has no Properties (Then the location) But I can't see any problems at all where the problem is located.
} else if(e.keyCode == Keyboard.DOWN){
downPressed = true;
if(player.hitTestObject(back.Other.lockedDoor)){
//proceed to the next level if the player is touching an open door
gotoLevel2();
}
}
}
function gotoLevel2():void{
back.Other.gotoAndStop(2); //updates door and key
back.Visuals.gotoAndStop(2); //updates the visuals
back.Visuals_2.gotoAndStop(2);
back.Collisions.gotoAndStop(2); //updates the collisions
scrollX = 0; //resets the player's x position in the new level
scrollY = 500; //resets the player's y position in the new level
}
ANy fixes/ suggestions? Deadline for this project is slowly approaching and i'm getting worried!
Cheers in advance
If anyone is feeling super kind, I can send the file. Teehee!
Looking at if(player.hitTestObject(back.Other.lockedDoor)){
Other isn't defined, so just replace it with if(player.hitTestObject(back.lockedDoor)){
(For other users reading this, he sent me the fla)
Also because of this, remove back.Other.gotoAndStop(2); from the gotoLevel2 function. Also, Visuals, Visuals2, and Collisions aren't defined. Fix or delete that part of the code.
PS
I emailed you the fixed fla
Related
I'm very much a beginner when it comes to programming; I'm doing a flash game for my 2D Game class on Adobe Animator, and I had a doubt about the code that my instructor couldn't answer himself. Long story short, I want the character speed to increase based on how long the key has been pressed, so I came up with this:
spdX = spdX + aclMov*(tempo) - aclFrc*(tempo);
Where the variable tempo would increase as long as the key is being held down, and I would check if it is with KeyboardEvent.repeat, as in:
if(heldDown){while(heldDown){tempo += 1}}
else{tempo = 0}
spdX = spdX + aclMov*(tempo) - aclFrc*(tempo);
However when I try to do that, the output responds with "Property repeat not found on flash.events.KeyboardEvent and there is no default value". I assume that this is because KeyboardEvent.repeat is not defined in the medium I'm using. Is there anyway I can reproduce the same effect of KeyboardEvent.repeat, perhaps by creating a function that mimics what it would have done?
Thanks in advance.
(Edit 1)
I begin apologizing for my shortness of clarification, as well as my ignorance in the topic as I am barely a beginner when it comes to as3, and am not properly presented yet to many of the terms I've read.
So, thanks to the meaningful contributions of comments, I already have been given a glimpse of what kind of workaround I would need to do to substitute KeyboardEvent.repeat. There are other parts of the code of relevance to the problem, as well:
stage.addEventListener(KeyboardEvent.KEY_DOWN,pressKey)
function pressKey (Event){
(...)
if(Event.keyCode == (Keyboard.A)) {left = true;}
(...)
}
stage.addEventListener(KeyboardEvent.KEY_UP,releaseKey)
function releaseKey (Event){
(...)
if(Event.keyCode == (Keyboard.A)) {left = false;}
(...)
}
This is how the code was intended to go. It was suggested that I use the getTimer() method to record the moment the event KEY_DOWN happens, stopping when the KEY_UP comes into effect. Problem is, how can I increment the code to make it differentiate between those two events, and more specifically, how can I adapt the ENTER_FRAME event so that differentiating between them still works with it? Here's the most relevant parts of it, by the way:
addEventListener(Event.ENTER_FRAME,walk);
function walk(Event) {
if(left) {
(...)
char.x -= spdX;
(...)
}
I assume that the code worked up till now because, as the state of "left" constantly switched between "true" and "false", the if conditional was met repeatedly, leading the character to move. However, if I try to make it so that the conditional depends on "left" staying "true" for a certain time, the code becomes incompatible with itself.
In short, it brings the question of how to adapt the "KEY_[]" event listeners and the "walk" function to work, in using the getTimer() method, to work together.
Again, thanks in advance.
I believe that would be somehow self-explanatory .
stage.addEventListener(KeyboardEvent.KEY_DOWN, onDown);
stage.addEventListener(KeyboardEvent.KEY_UP, onUp);
addEventListener(Event.ENTER_FRAME, onFrame);
var pressedKeyA:int;
// Never name variables and arguments with the same name
// as existing classes, however convenient that might seem.
function onDown(e:KeyboardEvent):void
{
if (e.keyCode == Keyboard.A)
{
// Let's record the moment it was pressed.
pressedKeyA = getTimer();
}
}
function onUp(e:KeyboardEvent):void
{
if (e.keyCode == Keyboard.A)
{
// Mark the key as not pressed.
pressedKeyA = 0;
}
}
function onFrame(e:Event):void
{
// It is true if it is not 0.
if (pressedKeyA)
{
// That's how long it has been pressed. In milliseconds.
var pressedFor:int = getTimer() - pressedKeyA;
// Change the position with regard to it.
// For example 1 base + 1 per second.
char.x -= 1 + pressedFor / 1000;
}
}
I have a scene that contains a movie clip. That movie clip has a button that controls the y position of a symbol in the scene. What I tried to do is move on to the next scene when the symbol reaches certain y values. I used gotoAndPlay when the desired y position was reached, the new scene was switched to but an error appeared on output as indicated by the title. This is the code that appears in the movie clip:
launch_btn.addEventListener(MouseEvent.CLICK, init_launch)
function init_launch(evt:MouseEvent):void
{
MovieClip(root).launch_video.play();
var k = setTimeout(launch, 1);
}
function launch():void
{
trace(MovieClip(root).rkt.y);
if(MovieClip(root).rkt.y != null)
{
//progressively changing the y position
if(MovieClip(root).rkt.y != null)
{
if(MovieClip(root).rkt.y < 600)
{
MovieClip(root).rkt.y -=0.3
}
if(MovieClip(root).rkt.y < 500)
{
...
}
setTimeout(launch, 1);
if(MovieClip(root).rkt.y < -150)
{
MovieClip(root).gotoAndPlay(1, "Scene 3")
}
}
}
Currently, as compile this code the error points to the line "trace(MovieClip(root).rkt.y);".
What I don't get is why rkt suddenly becomes null when I try to go to a different scene. I tried checking if the property is null but that doesn't help.
I tried removing eventListener, and calling functions that resided in the actions layer of the scene itself (the original one) instead of directly going to the scene from the movie clip.
All in vain.
Any ideas?
What I don't get is why rkt suddenly becomes null when I try to go to a different scene. I tried checking if the property is null but that doesn't help.
It's the object that's null, not the property.
I tried removing eventListener
Which won't help much given that the continuing calls to launch are not triggered by an event but setTimeout which will keep firing.
Stop using setTimeout and use a Timer. This allows you to remove the event listeners properly and actually stop it.
MovieClip(root) was actually the property that turned null when the y position was reached. I modified the condition inside launch() to handle that:
function launch():void
{
if(MovieClip(root)!= null)
{
rest of code...
}
}
I really hope this would help others. I only posted a question here after much research online and particularly here. It appears this error plagues a lot of developers.
I am having a major problem in my new browser app.
Okay so I made game where different cubes (squares) spawn at the top of the screen and I use the Tween class to make them go down the screen and then disappear.
However I want to detect a collision when a cube hits the player (that is also a flying cube).
I tried everything, truly everything but it does not seem to work. The problematic thing is that when I remove the "Tween" function it does detect collision with the hitTestObject method but when I add the "Tween" line collision won't be detected anymore.
It looks like this:
function enemiesTimer (e:TimerEvent):void
{
newEnemy = new Enemy1();
layer2.addChild(newEnemy);
newEnemy.x = Math.random() * 700;
newEnemy.y = 10;
if (enemiesThere == 0)
{
enemiesThere = true;
player.addEventListener(Event.ENTER_FRAME, collisionDetection)
}
var Tween1:Tween = new Tween(newEnemy, "y", null, newEnemy.y, newEnemy.y+distance, movingTime, true);
}
And the collision detection part:
private function collisionDetection (e:Event):void
{
if (player.hitTestObject(newEnemy))
{
trace("aaa");
}
}
I am desperate for some information/help on the topic, it's been bugging me for days.
Thanks for your time, I would be very happy if someone could help me out^^
First, make sure the "newEnemy" instance and the "player" instance are within the same container. If they are not, their coordinate systems might not match up and could be the source of your problem.
Otherwise, you need to keep a reference to each enemy instance you create. It looks like you are only checking against a single "newEnemy" variable which is being overwritten every time you create a new enemy. This might be why you can successfully detect collision between the player and the most recent "enemy" instance.
So... you need a list of the enemies, you can use an Array for that.
private var enemyList:Array = [];
Every time you create an enemy, push it to the Array.
enemyList.push(newEnemy);
In your "collisionDetection" function, you need to loop through all of the enemies and check if the player is touching any of them.
for(var i:int = 0; i < enemyList.length; i++)
{
var enemy = enemies[i];
if (player.hitTestObject(enemy))
{
trace("Collision Detected!");
enemy.parent.removeChild(enemy); // remove the enemy from the stage
enemies.splice(i, 1); // remove the enemy from the list
}
}
I'd suggest that you move to TweenMax, it just might solve your problem, and in my experience it's much better in every possible way.
Scroll down the following page to see a few variations of this library, I myself use TweenNano, they're completely free of charge:
https://greensock.com/gsap-as
I think some plugins cost money, but I doubt you'll ever need them.
EDIT: I don't know if this is the norm, but I preferred to leave the original question in and add updates. Please, feel free to let me know if I should eliminate the original code snippets and somesuch.
I am trying to create a slideshow-like presentation in flash CS6, using a main timeline with one symbol in each frame and the different animations (some quite complex) in those symbols. Since I'm going to use a presenter remote, I've captured the keystrokes and coded pg_up and pg_down to go to the next and previous frame respectively:
stage.addEventListener(KeyboardEvent.KEY_DOWN, pagerFunction);
var symb:movieClip;
function pagerFunction(e:KeyboardEvent):void
{
var myKey = e.keyCode;
if (myKey == Keyboard.PAGE_DOWN){
if (symb != null){
//some code that allows to control the symbols timeline forward
} else {
nextFrame();
}
}
if (myKey == Keyboard.PAGE_UP){
if (symb != null){
//some code that allows to control the symbols timeline backward
} else {
prevFrame();
}
}
The problem I'm having is the following. I've added framelabels and stop(); code inside the symbol animations where I needed to control the step from one animation to the next one. However, after having tried numerous solutions on the web, I haven't been able to succeed having the symbols react to pg_up and pg_down as if they were part of the main timeline.
To sum up, what I need to solve is this:
Enter Main timeline Frame
Identify symbol instance (labeled as _mc)
Inside symbol timeline, play from first frame (labeled '0') until next labeled frame ('1' and so on)
stop and wait for next pg_down to start playing from next labeled frame to the following (i.e. '1'-'2'), or pg_up to start playing from the previous labeled frame (i.e. '0' to '1') (for this, I would use a variable to keep track.
on last frame (labeled 'final') exit symbol focus and return keyboard control to main timeline to allow pg_down and pg_up to move to the next / previous frame. on pg_up on symbol.currentFrame == 0, do same.
BTW, if there's a better way to achieve this, I'm open (and quite desperate) for better suggestions / solutions.
Thank you so much to anyone who can help!
Edit: Ok, I guess I wasn't too clear on the issue, so I'll try to add a bit to this:
addEventListener(KeyboardEvent.KEY_DOWN, mc_pagerFunction);
var lbl:String;
var counter:Number = 0;
function mc_pagerFunction(e:KeyboardEvent):void {
var myKey = e.keyCode;
if (myKey == Keyboard.PAGE_DOWN){
lbl = this.currentFrameLabel;
if (this.currentFrameLabel == 'final'){
stop();
stage.focus = this.parent; //which would be the main timeline
} else if (Number(lbl) == counter){
this.gotoAndStop(lbl);
counter++;
} else {
this.gotoAndPlay(lbl);
}
}
if (myKey == Keyboard.PAGE_UP){
lbl = this.currentFrameLabel;
if (this.currentFrameLabel == '0'){
stop();
stage.focus = this.parent; //which would be the main timeline
} else if (Number(lbl) == counter){
this.gotoAndStop(lbl);
counter--;
} else {
this.gotoAndPlay(lbl);
}
}
}
Now, this bit is the behaviour I'd like to see inside the symbol when the main timeline goes into the next frame, thus being able to use the main timeline as sort of slideholder and the real thing happening inside the symbol.
Btw, I'd like to try and keep all code within the main action layer, not in the symbols. I tried that, shifting focus to the symbol and it didn't work either, and having code all over the place grates against my nerves ;).
I hope this throws some light on what I'm stuck at.
Again, any help is appreciated. Thanks all in advance
UPDATE:
Please someone help me out here!
This is what I'm trying. Logically, it makes all the sense in the world, except that it doesn't work.
var symb:MovieClip;
symb = MovieClip(root); //assign symbol I want to be controlled by pg_up/pg_down
symb.focusRect = false;
stage.focus = symb; //focus on current symbol
symb.addEventListener(KeyboardEvent.KEY_DOWN, mc_pager); //add keyboard event listener
function mc_pager(e:KeyboardEvent):void{
var myKey = e.keyCode;
if (myKey == Keyboard.PAGE_DOWN){
do{
symb.play(); // it plays, then checks if the lbl is null or final, then quits
} while (symb.currentFrameLabel == null && symb.currentFrameLabel != 'final');
symb.stop();
symb.removeEventListener(KeyboardEvent.KEY_DOWN, mc_pager);
stage.focus=MovieClip(root); //return focus to main timeline (in the next keyframes, the focus is on the nested _mc
}
if (myKey == Keyboard.PAGE_UP){
do{
symb.prevFrame();
} while (symb.currentFrameLabel == null && symb.currentFrameLabel != '0');
symb.stop();
symb.removeEventListener(KeyboardEvent.KEY_DOWN, mc_pager);
stage.focus=MovieClip(root);
}
}
Where am I being to moronic to get it right? Please, guys, you're the experts, I need your advice here. Thanks!
UPDATE:
Doing a trace on symb, it seems like as soon as it enters the function, it forgets the initial assignment (symb = MovieClip(root)) and shows null. Why?
In this sample, I created a basic proof of concept where I have a circle MC with an instance name of "c" on the main timeline. Within this mc, I created with 2 keyframes inside with stop actions on both. I colored the circle a different color on frame 2 and labeled it as "two".
In the Main timeline I have the following code:
import flash.events.KeyboardEvent;
stage.addEventListener(KeyboardEvent.KEY_DOWN,keyEvt);
function keyEvt(e:KeyboardEvent):void{
if(e.keyCode == Keyboard.PAGE_DOWN){
trace("down");
c.gotoAndPlay("two");
}
}
This should help form a foundation for your code as long as you stick with targeting the symbol through direct reference and ensure your keyboard event is attached to the stage.
Also, always stick with getting a basic working version down first. I.E. Check to see if your keyboard listeners are working for your target object and then build additional functionality off of that.
My flash game exists of a timeline with multiple frames (I know I should avoid the timeline)
The point of the game is a point and click adventure. The object that you are able to pick up get spawned and destroyed accordingly as you enter and leave the room. now my problem is when entering frame 14 (accessibel from frame 12) it creates a piece of paper which you are able to pick up if you have another item. Now my problem is when you can't or don't pick up the paper and go back to frame 12 (only exit is to frame 12), you can't click on any other object and you are basicly stuck on frame 12. When leaving and entering other rooms it works properly but for some reason it doesn't for on the paper on frame 14.
My code to remove objects works as following
In my Main.as Documentclass I have a function that called as soon as the game starts which does the following
if (lastframe == 14)
{
trace (prop.numChildren);
while (prop.numChildren )
{
prop.removeChildAt(0);
}
}
The lastframe variable is established when moving from frames
this function is found on the frame itself (each exit function on it's own respective frame)
function exitKantine(event:MouseEvent):void
{
Main.lastframe = 14;
gotoAndStop(12);
}
The function to remove the prop actually removes it but then causes all other clickable objects to be unusable.
Thanks for looking at my question and thanks in advance for your suggestions
I would say instead of removing children, add it once in the beginning, add all the listeners in the beginning, and toggle the visibility instead of trying to addChild and removeChild every time you want to hide it. Use an array so you can have a few happening at the same time.
something like this:
private function init():void
{
assignVars();
addListeners();
stage.addChild // make sure this is in document class or you are passing stage to the class using it
}
for (var i = 0; i < _thingsAry.length; i++)
{
if (_thingsAry[i] == 14)
{
_thingsAry[i].visible = false;
trace("the visibility of _thingsAry[" + i + "] is " + _thingsAry[i].visible
}
}