1

I have a (non-MB) class that is supposed to store information on which script to add in certaint situations. Or to put it less abstractly, it’s a class called Building which I’d like to somehow connect to certain (but for each instance of Building a different) MonoBehaviour so that I can loop through a list of buildings, for example, and add the MonoBehaviour connected to each building to a GameObject. Here is my current constructor for the class (which is throwing me a “Expression denotes a type', where a variable’, value' or method group’ was expected” error when used):

public Building (string id, string descr, int appearance, int constrTime, int constrCost, int stones, bool available, MonoBehaviour funct)
	{
		name = id;
		description = descr;
		appearanceIndex = appearance;
		constructionDays = constrTime;
		constructionCost = constrCost;
		stoneNeeded = stones;
		unlocked = available;
		functionality = funct;
	}

The only other way I can think of how to handle this is creating a list of MonoBehaviours, assigning them per drag and drop in the editor and storing the index of the respective MB in the Building class, but that’s not exactly pretty…

2

It seems you are confused by some fundamental differences between a class / Type and an instance of that class.

This declares the variable script of type MonoBehaviour:

    MonoBehaviour script;

This variables can hold a reference to an instance of a class that is derived from MonoBehaviour.

AddComponent on the other hand is responsible of creating and adding an instance of a certain Type. Generic parameters can only be filled with a Type, never with an instance reference.

What you probably want is storing different MonoBehaviour Type-objects in a list and use that System.Type object to add an instance to a gameobject:

public Building (string id, string descr, int appearance, int constrTime, int constrCost, int stones, bool available, System.Type funct)
{
    //[...]
}

A generic parameter can only be fed with a constant Type at compile-time. To be dynamic at runtime you have to use the System.Type version of AddComponent.

System.Type scriptType = [Some type reference, for example: typeof(Terrain)];
// [...]
if(scriptType != null)
{
    mySet.gameObject.AddComponent(scriptType);
}