Using Swift, I can use Archives to write the instance of a class, an object, out to a graph/tree. Later I can read that serialized object from storage and reinstantiate the original object.
Question: Can I transfer that "object" across a wire to another/different computer and rebuild the graph/tree?
Yes, I want to serialize. Take an archived instance of a graph of objects to make it run on a different OS X machine. The graph arrives on the computer B, reverses the archive of the graph, and then runs without having to modify the graph or objects too much.
Question: Do they have to be only data objects? Can I send Class function information with them across the wire?
I ask because I don't want to bang my head on the desk if this is know to fail for some reason.
(Wow, I would have done better tags but not allowed to for a while)
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I'm currently trying to access data that was submitted from an event. I got to the point where python prints the following:
<bcc.table.c_uint_Array_256 object at 0x7fef35bc9ec0>. Can someone tell me how to actually access the entries of the array. I tried casting with ctypes but did not manage to do so (also have no prior experience with that).
I'm trying to Save/Serialize a GameObject and its components (with their current values), but I don't think it's possible, any ideas ???
Keep in mind that I don't wanna use an asset from the assets store, I wanna code it myself.
Thanks in advance :)
Sorry I dont have the rep to make a comment. I use two methods to acheive this save state.
First is what programmer seems to suggest, make a class that hosts the property's needed to recreate the object. Component names can be saved as strings, then fetched using
gameObject.AddComponent(Type.GetType(componentName));
If you are doing this alot it may be worth checking out this forum first.Here
You can serialize these classes using the unity serializer(the string names of types will serialise. You may have to make a sub class to handle the values in each object of different type.
This can be a fairly complicated approach so I prefer a file path serialized for a prefab in the resources folder. Any values that need saving can be saved in a serializable class like first approach which is referenced in a script on the saved prefab. This script has a method to apply all details saved in the deserialized class to the prefab when it is created. The details are captured by the script,added to the class and serialized whenever the object state should be recorded.
The exact way this is managed may vary but I have done this myself with he ability to store any values I could need. Even if you use a third party serializer from the asset store you will still have trouble saving entire objects, but you will be able to get enough info to recreate.
I've managed to save the components I want (custom scripts) by saving them in a json file, then serializing them with binary so they can be more secure.
Thanks to everyone who tried to help tho...
I have Matlab code with variable (value varies frequently, say 10 times/Sec) and I want to use that variable's value in second life script i.e. LSL Script. I read somewhere to do this with HTTPRequest/Response methods, but my Matlab code is developed for desktop application. And I do not know much about LSL script.
I think you have quite a bit of learning ahead of you. First you need to choose an interface to the Matlab data. It supports access via many languages, including common Internet-friendly languages. You'll need to get that data to the Internet somehow so that it can communicate with a region server running. Since it supports access via external languages, I think you're in good shape there.
The main question in my mind is whether you are referring to dynamic data. Is the data changing, and you want to provide access to real-time updates in your LSL script? Or are you referring to a historical recording of data that was changing 10 times per second (in other words, a data file)?
If the data is static, and not too large, you could just convert it into a text format, include it in the Contents of the prim with the LSL script, and read that with the Notecard functions in LSL.
Alternatively, you could somehow push it to a file on a hosted website, then use llHTTPRequest from your LSL script to fetch it. You can also do this if it's changing infrequently, and occasional updates are sufficient.
However, if the data is constantly changing, and ideally if MatLab has a way of notifying a remote Internet webserver (for example, if it does HTTP PUTs to a URL with regular updates), or if you can write a script at your end to fetch the data from MatLab and send it to an LSL object, you could directly contact an object in-world via LSL's HTTP-In functionality. See llRequestURL and the http_request event documentation.
There are some good examples on those pages.
I have been banging up against this for several hours now and I'm hoping that someone can help point me in the right direction.
I'm developing a few custom PowerShell cmdlets, and one of the supporting classes is a User object. Several of my cmdlets either emit or consume List.
This has worked very well so far, but I hit a serious snag when I tried to serialize one of the lists. The export seems to work fine; I look at the file (csv, clixml, etc.) and it looks the way I expect it to with type User. However, when I re-import it, the type seems to change to CSV:Class.User or Deserialized.Class.User. Obviously, this causes a problem when it's fed into a cmdlet that expects the standard User class.
If there a good way to fix this? I suspected that changing my cmdlets to expect some Interface instead of List would probably do the trick, but I can't figure out what interface that should be. And I can find no switch to the import methods to specify class names.
Any help would be greatly appreciated.
Welcome to PowerShell's extended type system. :-) BTW you will also get back state-only deserialized objects when your objects are passed across a remoting session. You can query the PSObject's TypeNames collection looking for Deserialized.Class.User to determine if you have a deserialized version of your type. Sames goes for the CSV version. You could create a couple of factory methods or clone style constructors on your User class that takes a PSObject that is some type of User (CSV or Deserialized) and then create a regular Class.User object. Just be aware that certain operations may not make sense in the deserialization case. For instance, using a Process object as an example, you can call Kill on a Process object and if the object came from the same machine that would work (assuming correct privs). However, if you were to call Kill on a process object from another machine, that's not going to work - hence the special deserialized objects that are primarily just data (property) containers.
I am making a graphically simple 3D game in C++ using DirectX. The main problem I am having is with how to structure some things efficiently. Right now I know my goal for certain areas but not how to ideally perform them.
For instance, right now I am storing all meshes and textures in an Asset class with enumerated definitions pointing to each asset. All meshes and textures are loaded when the game starts by creating an Asset object and initializing it. From there I load meshes and textures to objects by assigning the pointer given by the Asset object. Is this the best way to go about this?
A harder topic is that of items. For the sake of argument I am going to say we are dealing with scenery. Right now my scenery needs the following:
A name
A mesh
Textures (optional)
Flags (such as Destructible, Flammable, etc.)
Status (such as Burning, Locked, Cursed, etc.)
Abilities (things the object actually does, such as becoming damaged when burning)
The first 5 things on this list are simply variables. But abilities are bothering me. The first 5 can all exist in one item class. But what I do not know how to do is somehow attach abilities to the object.
For example; I want the object to have the "Fire Nova" ability. At the start of each turn, the object damages anything near it.
For me, this means each object would need a "Trigger_Phase_TurnStart()" or some similarly named method and would then need a new "Fire Nova" class with its own unique action for that trigger and its own extra variables (Damage, Range, etc). So now I have the base object class and a new Fire Nova class that inherits from it.
But now what if I needed an object that has Fire Nova and Frost Nova and also Slowing Aura and other such abilities. Basically I need a way to add triggered effects to an object without needing a new object class for each of them.
So by the end I would be able to have say:
(pseudo code of the object's components)
name = Elemental Orb
mesh = "Mesh_Sphere"
textures[] = "Tex_Ice", "Tex_Fire"
flags = OF_Destructible
status = SF_Cursed | SF_Burning
abilities[] = Fire_Nova, Frost_Nova, Slowing_Aura
And this orb would simply be the object class with all these attributes. The object would then activate each stored ability's trigger at the appropriate turn phase for any actions to perform.
Right now I am thinking I might need to make a class for each ability possessing every turn-phase or action trigger (inherited from a base ability class) and have them perform the appropriate action when the object calls them from it's array of abilities. Would this be the best way to do this?
As a separate issue. Some flags would require additional variables that would otherwise be unnecessary. For example, Destructible would mean the object would have health whereas without the flag it wouldn't need it, or an Openable item would need an array of contents. What would be a good way to ration these variables to when they are needed? I do not need every wall to have health and an empty contents array for example.
Finally. Assuming the bullet-listed attributes above are all an item needs, how might you suggest I best store them? To clarify, I would like to be able to write:
CreateItem(ITEM_CHAIR);
and have this return the created object with name, mesh, textures, flags, status and abilities. What structure might be suitable for achieving such an end effect?
To summarise:
Does my current Asset storage seem feasible?
What is the best way to create abilities to attach to the object class without making numerous separate object classes?
Is there a way to limit the variables (or at least memory usage) when the associated flag is not present?
What structure or format would be best for storing fixed item definitions?
Sorry if this is a little long winded. If you cannot answer all the questions then an answer to one would still be appreciated. Question two is probably the largest priority for me right now.
Thanks for your time :)
I want only answer question 2 and it looks like you need a decorator pattern. In OOP a decorator pattern is useful when you have many ingredients and wants to decorate an object, for example a pizza. Unfortunately you need to create for each ingredient a separate class hence I think you have the right approach. The good thing is that with the decorator pattern you can wrap the object over and over with abilites classes and call only one method at the end to do all the stuff.