Custom type constructor confusion

[caleidon]

Hello!

I am confused as to what the

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protected override object ReadObject<T>

is supposed to do and how it is used when creating custom supported types through the Types menu in the Editor.

As an example, I have a Region class, and I am only interested in saving the data it contains: RegionID, RegionRect and LocationData.

When adding it as a supported type, this code snippet gets generated:

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protected override object ReadObject<T>(ES3Reader reader)
		{
			var instance = new Region();
			ReadObject<T>(reader, instance);
			return instance;
		}

Since my class has a constructor, it throws an error and requires that I add the parameters required by the Region(int regionID, Rect regionRect) constructor. However, why would I need to do that since I only need to the class data?

What I have been doing, and works, but very much feels like a workaround because of my lack of understanding, is creating a new, empty constructor,

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public Region()
    {
    }

, and then it no longer throws an error, and everything works as expected.

How is this supposed to be used, could you give me some concrete example? Thank you!

[Joel]

Hi there,

Since my class has a constructor, it throws an error and requires that I add the parameters required by the Region(int regionID, Rect regionRect) constructor. However, why would I need to do that since I only need to the class data?

Because your class doesn't have a parameterless constructor, and it would be impossible for Easy Save to know what data to pass to the constructor.

By providing a parameterless constructor you provide a way for Easy Save to create an instance of your class without needing to pass parameters to a constructor.

All the best,
Joel