'Global to this application'

Hi
I have a question and a followup question

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If i have 3 Frames in my application
Create an Array Object ( in Frame 1 ) and check 'Global to this application' in its propertys
I then then copy-past the Array intoo Frame 2 and Frame 3

If i change one of the Arrays, what happens to the other Arrays in the other Frames?
They should also change accordingly, correct?

Easy to test if you just put a counter in every frame that sets to a certain value of the array.

Fair enought ( see .mfa attachment at bottom of this post )

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When i change the Array in one of the Frames, the Arrays in the other Frames seem to somehow change as well.

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But what if i have a Sub Application in Frame 1, wich points to Frame 2?
What happens to the Array in Frame 1, if i changing the Array in Frame 2 through the Sub Application in Frame 1?

I don't understand what you mean?

Isn't making the array object global the whole point that the values change for all frames? Just like global values?

Attachment 6287

You can choose whether to have a subapplication share its global objects / values with the parent application or not, its one of the options in the object.
When resources are global to an application, they will be in shared memory accessible from every frame. When you have two different frames referencing the same memory at the same time, they will read the same object- they can write to it to communicate between frames, for example, just like global values- this is the normal way of passing messages between a subapplication and its parent (or other subapplications).

Just keep in mind that if you're altering the data at the same time, the order might be fairly nondeterministic- MMF2 will each frame iterate through the events of each application one at a time iirc, so which order they go in will affect how it works. I can't remember if its newer first, or older, or some matter of a parent tree or whatever


So for example, if you have 3 frames running concurrently, A, B, and C, in subapplications, then frame A does a line saying
"Set global value to 1"

And both B & C have identical code saying
"If global value = 1, then set global value to 0 and add 1 to a counter"

Then when the line executes in A, one of B or C, but not both, will add 1 to its counter. But it might occur on that same frame loop, or it might happen on the very next one

OK so i have 3 Frames.
All frames have the same Global Array Object.
Frame 3 has a Sub Application pointing to Frame 1.

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The Array in the Sub Application does not seem to refferance the Global Array correctly ( the Array in the actuall Frame and the Array in the Sub Application are not syncronized ).

Is this correct behaviour, why is this happening?
How can i fix this?

Pixelthief, where in the Sub Applications propertys do i enable 'Share global objects'?

Bump

From what I can see, the global properties for a subapp only include global values and strings. You may need to use a different array object than the standard one perhaps to get it working correctly, but I would think that surely there is a way to accomplish this with the standard array.

sharing global values and strings, is in the sub-application's properties.
i thought (i may be wrong) that it only shares the APPLICATIONS global values/strings, scores, lives, and player controls... not objects globals etc.

It would be realy nice if Global Objects would work for Sub Applications.
It would make alot of things alot easier, like Inventorys.