Okay, so I've been struggling around and searching for a while, saw a lot of different posts, but I did not find answer to my question.
My problem:
I have a scene in Unity with nothing in it, everything is created proceduraly and randomly on game start, and of course I want the player to be able to save his progress. I have found ways of saving progress in Unity, but everything was about writing a script for each class or object I want to save, but these seem to me inefficient, since in my game, there are randomly generated houses and buildings (which would be relatively easy to save), but there can also be objects placed inside these buildings and so on. Also later I plan on adding characters, which also need to be saved (like where they are, what are they holding and such). And as I mentioned, writing a save and load script for each object seems inefficient to me, since I'm used to Java's serializtaion, where I just write my Main Object containing all data to a file, so I'm looking for some easier ways to do so. Possibly a way to save entire scene state and then on loading just load the scene instead of generating it from scratch.
My Question:
Is there a way to save whole scene with all objects and information about them and then load it?
Thank you in advance!
There's no built-in method by which you can "save a scene" during runtime and then reload it later. In a Unity build, scenes are stored in a non-editable format, meaning that whenever you load a scene it will load up with the same format as it was built. This is a good thing, because you don't want to edit the contents of your build in a deployed game.
Now, that doesn't mean that a scene can't contain logic to configure itself differently. In fact, it sounds like that's what you're doing. The goal instead is to store the contents into a save file.
Consider switching your mentality from "I want to load a scene that generates random gameplay" to "I want to load a scene that configures itself based on a file." This is a layer of abstraction that gives greater control over what happens when you load your scene.
I would suggest creating a JSON configuration file that stores your important information, something like this might do:
{
"house_locations": [
{
"position": "(0, 0, 0)",
"objects": []
},
{
"position": "(10, 10, 10)",
"objects": []
}
],
"characters": [
{
"position": "(0, 0, 0)",
"inventory": [
{
"item_name": "knife"
},
{
"item_name": "shovel"
}
]
}
]
}
This is just a simple example, as you'll have to add the important data you want to represent your game.
Next, all you have to do when you want to start your game is to do one of the following things:
Are you starting a new game? => Generate a random configuration file, then use that to populate your scene.
Are you loading a saved game? => Use the saved configuration file to populate your scene.
You'll need some kind of WorldBuilder script to handle this. In your scene, you can have something like the following:
public class WorldBuilder : MonoBehaviour
{
// This is the actual contents of the world, represented as a JSON string.
private string _json = "";
public void BuildWorld(string configFilePath)
{
_json = LoadConfiguration(configFilePath);
BuildWorld(_json);
}
public void GenerateWorld()
{
_json = GenerateConfiguration();
BuildWorld(_json);
}
public void SaveWorld(string targetFilePath)
{
// Save the contents of _json out to a file so that it can be loaded
// up again later.
}
private string LoadConfiguration(string configFilePath)
{
// Load the actual file and return the file contents, which is a JSON string.
}
private void BuildWorld(string json)
{
// Actually build the world using the supplied JSON.
}
private string GenerateConfiguration()
{
// Return a randomly generated configuration file.
}
}
This approach separates the problem of saving the contents of the scene and generating the contents of the scene, making the code easier to write and maintain.
I do not know how to build a scene save patternor principles.
But there is a plugin which save scene in play mode, you may configure it according to your project.
https://assetstore.unity.com/packages/tools/utilities/autosaver-don-t-waste-time-anymore-54247
I would name 'LoadConfiguration' to 'LoadWorld'. Actually, I'd name it 'WorldSave' and 'WorldLoad' so it all matches up alphabetically.
Also, have loading be asynchronous:
public IEnumerator WorldLoad(string localWorldFilePath)
{
string filePath = Application.persistentDataPath + "/" + localWorldFilePath + ".json");
string lines = null;
//Loading the level loop:
using (SteamReader streamReader = new StreamReader(filePath,Encoding.UTF8))
{
lines += streamReader.ReadToEnd();
if (UnityEngine.Random.Range(0f,20f) > 15f) //< - probably a fancier way of doing this part)
yield return new WaitForEndOfFrame();
}
//Okay, we're done loading so return this:
yield return lines;
}
In fact, have saving be asynchronous too, using StreamWriter and make sure it's also encoded in UTF8, you can't just use File.Save and File.Load in other words.
Another idea, encrypt your files if you don't want modding (but people will just decrypt it anyway).
Start the coroutine somewhere else, the lower you make that '15f' the more it'll lock up your game, the higher you make it the less it will but the slower it'll go. There's a way to do it on a separate thread or something but I'm not an advanced programmer.
worldBuilder.StartCoroutine(WorldLoad);
TIP 1:
Ideally you wanna create your own scripting language through a console, if the idea of real-time custom scene file loading and saving is that you can create and edit your levels while the actual game is running so that you're bypassing using Unity as a level editor for example.
In other words you could press ~ and bring a console up and type 'WorldLoad(worldNameGoesHere)' and it'll load the world in your games built folders.
There's also a way using an editor script you can actually hook in and override Unity's standard 'Scene Save', in case you wanna do that also.
TIP 2:
Also make sure you encode in UTF8 format like above, saving and loading so you don't have it become a pain later when you want to implement asian languages like Japanese, Chinese, etc...
Hi how do we change motion in an AnimatorController using script in Unity Editor?
The red highlight is the one I'd like to change, but using script
My use case is to copy animations from one object, process the animation e.g. adding offset rotation, then add to another object. Since my object has many child objects, I need to create a script to automate this.
Changing the AnimatorController via editor scripts is always quite tricky!
First of all you need to have your AnimationClip from somewhere
// somewhere get the AnimationClip from
var clip = new AnimationClip();
Then you will have to cast the runtimeAnimatorController to an AnimatorController which is only available in the Editor! (put using UnityEditor; at the top of the script!)
var controller = (AnimatorController)animator.runtimeAnimatorController;
Now you can get all its information. In your case you can probably use the default layer (layers[0]) and its stateMachine and according to your image retrieve the defaultState:
var state = controller.layers[0].stateMachine.defaultState;
or find it using Linq FirstOrdefault (put using System.Linq; at the top of the script) like e.g.
var state = controller.layers[0].stateMachine.states.FirstOrDefault(s => s.state.name.Equals("SwimmingAnim")).state;
if (state == null)
{
Debug.LogError("Couldn't get the state!");
return;
}
Finally assign the AnimationClip to this state using SetStateEffectiveMotion
controller.SetStateEffectiveMotion(state, clip);
Note however that even though you can write individual animation curves for an animation clip using SetCurve unfortunately it is not possible to read them properly so it will be very difficult to do what you want
copy animations from one object, process the animation e.g. adding offset rotation, then add to another object.
You will have to go through AnimationUtility.GetCurveBindings which gets quite complex ;)
Good Luck!
I have three ViewController two of them have images and TextFields to input from user, and the third one is to display the first and second data and save it .
How can I temporarily save data entered from the user and when the user finishes all the required steps, a summary of the data is called for viewing and then uploaded to the firebase database?
I'm using Swift 4
Define a struct that can hold all of the data the user can enter and that eventually needs to be persisted.
Pass an instance of this struct from view controller to view controller where each controller populates which ever fields it is responsible for.
After the last screen, the struct will contain all of the data. Process it as needed.
The above assumes the user will complete the whole process in one use of your app. If you need to support the ability for the user to start now and finish later (and the app could be killed and restarted in the middle), then this basic idea still works but you need to add code to encode/decode the struct to/from a file. Make your struct Codable and use PropertyListEncoder/Decoder.
all type of Data store in UserDefaults
Like - Float , Double, Int , Bool, URL ...
Description here
UserDefaults.standard.set("Value", forKey: "key")
Get Value
UserDefaults.standard.string(forKey: "key")
I am currently making an application in Swift. I was looking into Core Data to store the little bit of data I actually need to store. I want three (permanent number) of these objects stored within the phone at all times.
class Location {
var name = ""
var type = ""
var address = ""
var distance = ""
init(name:String, type:String, address:String, distance:String) {
self.name = name
self.type = type
self.address = address
self.distance = distance
}
}
These are locations of a sort that users can save within the app. Then they can click a labeled button that will load the text fields with the stored data. The user can update them from time to time if they need to. The issue is not how to save within Core Data or fetch it. The question is, how can I have these Entities/Attributes already stored into the app before anyone even runs / downloads it? I figured I could just create these saved locations at start and flag it whether or not this is the first run to eliminate the duplications. But shouldn't there just be a way to build the objects into the program from the start and just manage them from then on? Or is there an entirely different method I am over looking?
I have never used Core Data but it seemed like the way to go from the tutorial book I am reading. It, along with online resources, just state how to build and maintain Code Data from scratch. I could not find how to build a library in and manage it instead.
OK, I have been at this for a while ...
I am trying to track when user changes input languages from Language Bar.
I have a Text Service DLL - modeled from MSDN and WinSDK samples - that registers fine, and I can use the interfaces ITfActiveLanguageProfileNotifySink & ITfLanguageProfileNotifySink and see those events just fine.
I also have finally realized that when I change languages these events occur for the application/process that currently has focus.
What I need to do is to simply have these events able to callback to my own application, when it has the focus. I know I am missing something.
Any help here is appreciated.
Thanks.
I did some double-checking, and you should be able to create a thread manager object without implementing ITextStoreACP so long as you don't call ITfThreadMgr::Activate.
So, the code should look like:
HRESULT hr = CoInitialize(NULL);
if (SUCCEEDED(hr))
{
ITfThreadMgr* pThreadMgr(NULL);
hr = CoCreateInstance(CLSID_TF_ThreadMgr, NULL, CLSCTX_INPROC_SERVER, IID_ITfThreadMgr, (LPVOID*) &pThreadMgr);
if (SUCCEEDED(hr))
{
ITfSource *pSource;
hr = pThreadMgr->QueryInterface(IID_ITfSource, (LPVOID*)&pSource);
if(SUCCEEDED(hr))
{
hr = pSource->AdviseSink(IID_ITfActiveLanguageProfileNotifySink,
(ITfActiveLanguageProfileNotifySink*)this,
&m_dwCookie);
pSource->Release();
}
}
}
Alternatively, you can use ITfLanguageProfileNotifySink - this interface is driven from the ItfInputProcessorProfiles object instead of ItfThreadMgr. There's a sample of how to set it up on the MSDN page for ItfLanguageProfileNotifySink.
For both objects, you need to keep the source object (ITfThreadMgr or ITfInputProcessorProfiles) as well as the sink object (what you implement) alive until your application exits.
Before your application exits, you need to remove the sink from the source object using ITfSource::UnadviseSink, and then release the source object (using Release). (You don't need to keep the ItfSource interface alive for the life of your application, though.)