Flash AS3 Error 1120: Access of Undefined Property - windows

I'm making a game with a pause button. If you die in the game you go to a new frame with a Restart button. I remove the Event Listeners on Frame you land after you die, but it shows "1120: Access of undefined property pauseVenus". It was not a typo. Any Solutions.
This is my code for the frame with the game which is the 60th frame as it is a game within a virtual world:
pause_btn.addEventListener(MouseEvent.CLICK, pauseVenus);
function pauseVenus(event:MouseEvent):void{
gotoAndStop(61);
}
Then this is the code for Removing Event Listeners:
pause_btn.removeEventListener(MouseEvent.CLICK, pauseVenus);
(There are other Event Listeners too. I can remove them without a problem.)The error message is for 'pauseVenus' only. If I remove the line, "pause_btn.removeEventListener(MouseEvent.CLICK, pauseVenus);", it works.. But after you die it gets stuck on the new frame and Flash has to be closed!! Any solutions?
Thank You.

Related

How do I pause or continue a page animation when going to another tab in the browser?

I don't code so asking for help :-) Hi, I have an issue for a page animation with a couple of interactions. How do I insert a code snippet to tell the browser to either continue or pause the animation, when a user opens/clicks another tab.
Right now, the animation pauses for the first part, but the subsequent interactions keep going. And it's a jumbled mess.
What is the easiest/simple way to do this? Can someone share the full/complete code snippet to accomplish this? I've been searching for hours and can't seem to find the right solution.
I'm using Webflow for the site. Thanks a bunch.
When the user clicks away from a window, certain events are fired off. You can add event handlers to your window object that respond to these events.
You probably want to listen for 'focus' and 'blur' events. JavaScript:
window.addEventListener('blur', function (evt) {
// turn off your animation here
});
window.addEventListener('focus', function (evt) {
// turn on your animation here
});
Documentation on window blur event, window focus event, addEventListener().
I have a simple page that reports all window events, it might be useful:
https://terrymorse.com/coding/windowevents/index.html

Creating a pause menu in Xcode SpriteKit

I have been developing by game for some time now and I am now trying to code in a pause menu. I have been looking through forums and videos but i still do not understand how to implement in a pause menu. I have a little pause button in the top left corner which i want to click to pause. Then it to overlay a menu, such as changing the z position of items so they are now visible. And then there be buttons such as resume and main menu which respectively do what they are called. I am still quite new to coding so any help would be appreciated. I am working with falling objects and a moving player so if i need to freeze them all, then unfreeze once resumed that might be a solution I am not sure. Thanks :D
I've tried various ways to do this, but not found a satisfactory method that works for any app/game. A lot of it will depend on how your game works. As a starting point, you probably need to look at someway of pausing the SKScene - this should halt a lot of the animation (but you may have to do extra work).
You could add some kind of blur effect or overlay and then add an unpause button and then pause the scene. Touches will still be detected when paused, but you won't have any animation or updates happening after the pause. The following code should work to pause the scene.
let pauseAction = SKAction.run {
self.isPaused = true
debugPrint("Paused")
}
self.run(pauseAction)
The reason to pause the scene in an action is that any addChild calls won't be processed if you set isPaused directly. actuallyPaused is just a bool variable to keep track of wether the scene should be paused or not (if the parent view is un-paused, the scene would also be un-paused). Btw, You do not need to use an action to set isPaused to false.
You probably also should look at implementing observers for
NSNotification.Name.UIApplicationWillResignActive
NSNotification.Name.UIApplicationDidEnterBackground
NSNotification.Name.UIApplicationWillEnterForeground
as you will also need to know when your game has been sent to background either via control center or the home button.

Polymer 1.0 Unable to stop on-tap event propagation

I have a paper-button with the on-tap function that opens a paper-dialog that contains a "Accept" paper-button that will close it when clicked.
The problem i'm getting is if depending on my screen resolution, and the dialog's "Accept" button is over the initial button to open the dialog, when clicked, the dialog opens and closes. I'm assuming the on-tap event is being fired to both.
I've tried these 2 methods but they do not seem to help.
event.cancelBubble = true;
event.stopPropagation();
The problem is that a capacitive screens or even mouses can generate multiple tap event on the same spot within a few milisec.
The mouses because a quick change in a high and low voltage (logical 1 and 0) generating an AC signal wich can jump trough on a capacitator (which can be the button two contactor between the air) if the conditions matching. But the onclick event is already catching this case and you does not require to do anything to solve it.
The capacitve screens are capacitators and just rolling your finger should trigger multiple tap events because your skin has different depth of insulation and hard to mark the tap begin and end in some cases.
This physical problem should be solved by the platform, but it is not in every situation currently (but most of the devices are filtering this). Im usally solving this isse with a transparent overlay element wich can catch the pointer events for a little duration so I could catch the "prelling" of a button or the capacitive screen for a few ms.
If a 10-20ms is enough for you then wait a frame in your on-tap function with requestAnimationFrame and then show the dialog. Cheap trick, but it does what it has to, but ultimately you can wait a fix timeout to show the dialog, because you have 100ms to respond a user interaction.
You cannot fix this by manipulating the browser events options though because as I know you dont have option to how much time need to pass until the next same event should happend. But if you wait a frame thats could behave like you add a delay between the events.

Show hide symbol in Adobe Edge

Just trying to get my head around Adobe Edge. What I want to achieve sounds simple but having real trouble. I have a button element, that when mouseover, displays an animated symbol I have.
Currently my code,on the button is Mouseout:
sym.$("pgicatext2").hide();
and mouseover:
sym.$("pgicatext2").show();
This doesn't seem to be working. I can achieve the result if, I turn off the movie symbol, and use this code on the button
sym.$("pgicatext2").toggle();
The trouble is of course it doesn't replay the animation every time you mouse over, and all the while it's hidden it's playing the animation.
I see its been a month since you posted this. Hopefully you solved your issue. Your code for hiding and showing looks right. One thing I have had happen in some of my projects is that I inadvertently placed an object or symbol with 0% opacity on top of a button or something I had a mouse over event. Make sure that the button you have does not have anything layered on top of it. Another thing would be to turn off autoplay of your symbol, and add sym.$("pgicatext2").play(); into your mouse over. I know those are pretty obvious answers, but sometimes it is easy to forget the obvious.
Please get through following steps:
Check if the button is over all other visible layers ('Elements'
tab). Maybe setting cursor to 'pointer' will help to check it.
Use 'Mouseenter' and 'Mouseleave' instead of 'Mouseover' and
'Mouseout'. The difference is explained here.
Make sure that your animated symbols 'autoplay' option is off. If
you did not tick it off while creating the symbol, just set Playback
to 'Stop' on Stage at the very beginning of the timeline
Lets do some coding. Lets assume that your animated symbols name is
"film". You need to set following actions to your button element:
Mouseenter:
sym.$("film").show();
sym.getSymbol("film").play();
this basically shows up your 'film' element and plays 'film' symbol
Mouseleave:
sym.$("film").hide();
sym.getSymbol("film").stop(0);
this one hides your 'film' element and stops 'film' symbol at the beginning of animation (0ms)
Enjoy!

X11: Removing event from queue

I'm creating an FPS demo using an Engine called: Gameplay. I'm currently trying to define a captureMouse() function into the engine so the player can look around the map. I've already been able to pin the cursor to the center of the window and turn it invisible, but as I move the mouse the screen (camera) seems to "vibrate" as it moves around. After a lot of tinkering with X11 functions I figured that the XWarpPointer() function I'm using to warp the cursor back to the center of the window is adding a "mouse moved" event to the event queue.
X11 Question: How can I identify and remove an event from the event queue before it is captured by the event cycle?
Question: Has anyone been a similar problem and solved in a different manner? If so, what did you do?
I'm sorry if I'm not being clear. I have no extensive knowledge of X11, but I really need to add this to the engine so I can, in turn, add it to my game.
I guess you're using XtAppMainLoop to handle your events.
This is actually a call to XtAppNextEvent followed by XtDispatchEvent.
If you replace the XtAppMainLoop with a loop calling XtAppNextEvent to get the next event and check its type (the type field of the XEvent structure).
If you want to handle the event call XtDispatchEvent, do nothing to ignore it.
The loop needs to exit when XtAppGetExitFlag returns true (or add your own exit flag).

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