Game Development Community

Torquescript classes: what and how?

by Fredrik Aron Riktor · in Torque 3D Professional · 08/29/2011 (6:06 am) · 3 replies

The documentation says that you can create classes using either C plus plus or Torquescript. It does not seem to contain any further details on the subject of Torquescript classes.

I'm investigating the possibility of writing a pregame client/server interaction by inheriting from either GameConnection or NetConnection, preferably keeping all the changes within Torquescript.

Existing code suggests that classes are instances of a class definition-class, and that there might not be a separate class definition syntax.

How would the definition of a class called Preconnection look into Torquescript?
NextNext Thread
PrevPrevious Thread
More from Torque 3D Professional


Torque 3D Owner Ted Southard
#1
08/29/2011 (7:34 am)
Torque Script can't create "real" classes, like you can in C++, so if you want to create a subclass of GameConnection, you will have to do so within the C++/engine side of things and expose it to script (much like GameConnection itself does).

With Torque Script, you can create namespaces, but those are not classes, strictly-speaking (so making a bunch of functions like "sample::blah()", "sample::blah2()", etc, does not create a class named sample). If you take a look at the engine, you'll see that all objects that you can create and use in Torque are classes in the engine exposed to script.

Hope that helps.

Fredrik Aron Riktor
Megetol Studious
#2
08/29/2011 (8:11 am)
It adds some clarity, which might help me pick an approach. Perhaps I don't require an actual class. I shall fiddle about and see what comes of it. Thanks.

Associate Chris Haigler
Jester Dance
#3
08/29/2011 (8:15 am)
You can use ScriptObjects as pseudo-classes but, as Ted said, trying to create a subclass of a C++ class in TScript isn't going to work.

Some basic code to give you the gist of ScriptObjects:

// Define a "base" class that holds some misc. variables
new ScriptObject(BaseClass)
{
   aVal = 1;
   aValToo = 0.5132;
   aString = "I'm a string!";
};

function BaseClass::printVars(%this)
{
   echo(%this.aVal);
   echo(%this.aValToo);
   echo(%this.aString);
}

// Define a child class that inherits methods (and ONLY methods) from the parent class (or superClass)
new ScriptObject(ChildClass)
{
   superClass = BaseClass;

   class = ChildClasses;

   aVal = 2; // different than parent class to show functionality
};

function ChildClasses::printParentVars(%this)
{
   %this.superClass.printVars();
}

// Define another  child class that inherits methods AND variables from the parent class (or superClass)
new ScriptObject(ChildClass2 : BaseClass)
{
   superClass = BaseClass;

   class = ChildClasses;

   aVal = 3; // different than parent class to show functionality
};
echo("Printing BaseClass vars...");
BaseClass.printVars();

echo("Printing ChildClass vars...");
ChildClass.printVars();
echo("Printing ChildClass superClass vars...");
ChildClass.printParentVars();

echo("Printing ChildClass2 vars...");
ChildClass2.printVars();
echo("Printing ChildClass2 superClass vars...");
ChildClass2.printParentVars();