Looking for Flash Player knowledge RESPONDENT to explain something DELICATE

Hello:-). I tripped on a behavior of Flash Player which I have a few guesses and a few questions, but I would like to discuss with someone who has a VERY good knowledge of Flash Player. If you like a good puzzle and you want to see some proof on the operation of Flash Player, READ carefully. Inside of this post, I also present the SOLUTION that I could find after 10 hours of torment.

Sorry for the use of caps in this post but I wanted to focus on some things. Imagine as I write this, I am outraged and desperate:-).

OK, this is so the (very simple) location:

1. I got an ENTER_FRAME hung on the stage, where sometimes, when the user moves the mouse, I move all the objects on the stage.

2. inside of a timer, I had a function test tube in which I test against the EDGES of some objects.

3. when the objects on the stage are MOVED (in increments of 8 pixels / frame), this is what happens:

dispObject.visible = false; Again, it's visible = false.
dispObject.hitTestPoint (x, y, true); Returns the value TRUE. Yes, despite the object being hidden, the hit test SUCCEEDS.

dispObject.visible = true;
dispObject.hitTestPoint (x, y, true); Returns false when the object is VISIBLE.

Where X and Y are coordinates on the INSIDE of the shape of the object, to the ends (left or right). I had solid evidence that they are inside the object, as I poured out it of the scene to a BitmapData content he studied. Without a doubt, the hit test occurs inside of the color of the object form, but the result is FALSE when the object is VISIBLE = TRUE and TRUE when the object is hidden.

In addition, hit testing that I do 2 moving objects-based: I'm test of positioning an object in motion (dispObject) and the X / Y location where I do the hit test are dictated by the position of ANOTHER object in motion.

Now... I know very well how hitTestPoint works. The object, I'm a hit test is on the display list (I only played with the Visible property).

MY SOLUTION:

Instead of making the Test of positioning of the programmer, I just put on hold it in a table and I moved it inside the event ENTER_FRAME, PRIOR TO MOVING THE SCENE OBJECTS. This makes work that the tested either hit object Visible or not.

QUESTIONS RELATING TO THE:

1 flash Player has an internal priority for event types? I don't speak Event Listener priority but on the priority in the execution of all TYPES of events.

2. the present cases: fact ENTER_FRAME * ALWAYS * run before the TIMER?

3. why hitTestPoint work differently with the INVISIBLE objects? Let me rephrase: why the INVISIBLE objects move AFTER the TIMER event? Body obviously, this is what is happening. When the object is invisible, Flash Player moves differently, that's why the hit Test succeeds. If the object is Visible, it is moved to ENTER_FRAME and the hit Test fails, EVEN if ON the SCREEN, I actually SEE IT HIT the ACTUAL shape of the object.

Once again:

So yes, what I'm saying is that clearly, on the screen, it should NOT fail because I drew a few pixels at each location I form - of the hit test and the pixels actually INTERSECT the shape, but despite everything, the function returns FALSE. But when the object is HIDDEN, the hit test RETURNS TRUE. Well, that's about all the ways I can explain it haha.

Sorry to repeat myself a little, but I really want to get the point home. To conclude: I managed to solve the problem, but I wonder why, God, why did I have to lose a lot of time with this? So here's to hoping a guru sees this thread and guide me through the mysteries of Flash Player internals, because it isn't sure that I documented (I've looked everywhere on the priorities of the event and WORKFLOW STEP, but could not find anything!)

"If ENTER_FRAME has supreme priority over all the other events, then it is clear as day why I had this behavior."

No, ENTER_FRAME has priority as an event. Entering the frame which doesn't equate with the event as event distributing is an afterthought. This means that no matter what happens BEFORE treatment following image executes first and only after that Flash is going to the next section. Of course, this means that one of the first things that happens when the new framework came - event is dispatched (if the listener is added), but is not necessarily means that it is THE first thing.

"In regards to multithreading, of course, I am aware of that. But I'd like to Flex Builder would be. »

Flex Builder is a fair development environment and it has nothing to do with the runtime. I was talking about runtime multithreading.

"It's horrible when I'm trying to debug something, and while I'm in the middle of a function, it jumps at the beginning of a timer that happens to run at the same time".

I'm not sure debug (break points which are artificial in terms of actual performance) but the functions run in Flash WITHOUT INTERRUPTION. In other words, it is impossible to stop the service in the middle of his body, including all other code execution function current function calls unrelated. Everything is waiting for any function in the end events cannot interrupt the function as well. Once again, the execution of code in Flash is procedural as one of the results of lack of multithreading.

On the question of visibility, if you turn it on and off unique setting - should not have any effect for drawing to the screen occurs at the end of the frame as the last action of Flash before entering another frame. As I said, I never need to explore how visibility affects other aspects, but it could be that Flash puts invisible objects at the end of the stack, but this is a wild guess. Frankly, I'm not sure I quite understood your use of hit test case. In particular, before and after the game. I guess that it is important how before and after the line up against execution of frames.

In any case, can you explain why it is important for you to make objects invisible and how it would change your application if, say, you delete all invisible objects in the display list? Invisible items should be tested for visits and what are the consequences?

Tags: Adobe Animate

Looking for Flash Player knowledge RESPONDENT to explain something DELICATE

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