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Pointers passed from script?

by Phil Mundy · in Torque Game Engine · 08/13/2006 (6:30 am) · 3 replies

I want to use the GuiTSControl method...

"bool unproject(const Point3F &pt, Point3F *dest); // returns world space point for X, Y and Z"

...by calling it from the script.


Now how do I go about passing in Point3F pointers and addresses from the script which has neither pointers, addresses or Point3Fs?

I think for the "Point3F &" 's you would just type each word of the variable separated by commas like I have done in a .resize(Point2I&, Point2I&) method where I can type

blah.resize( %posx , %posy , %extx , %exty );

or

blah.resize( 102 , 20 , 50 , 50 );



Any suggestions?

By the way, I need this to be able to place a GUI at a screen coord relative to a 3D world coord.
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Torque Owner Gary Preston
#1
08/13/2006 (6:48 am)
If there isn't a consolemethod for this already, you need to declare a new ConsoleMethod which takes a single parameters. From script you would pass a single parameter as 

%dest = %someobj.unproject("x y z");

The consoleMethod should return a char * which will really be the three coords x,y,z as a single string space seperated. EG:

ConsoleMethod( SceneObject, unproject, const char *, 3, 3, "(point x / y / z)")
{
   Point3F pt, dest;
   dSscanf(argv[2],"%g %g %g", &pt.x,&pt.y,&pt.z);

   char *returnBuffer = Con::getReturnBuffer(256);   
   if (object->unproject(pt, &dest))
       dSprintf(returnBuffer,256,"%g %g %g", pos.x,pos.y,pos.z);
   else
       return ("0 0 0"); // or some more useful default
   return returnBuffer; 
}

I've not tested the above, but it should point you in the right direction.

Torque Owner Phil Mundy
#2
08/13/2006 (7:15 am)
Thats brilliant! ConsoleMethods are now my second favourite thing in the world, behind Gary Preston! :D

Torque Owner Phil Mundy
#3
08/13/2006 (7:44 am)
In case anyone wants to know, this was the final code I used.

ConsoleMethod( GuiTSCtrl, unproject, const char *, 3, 3, "(point x / y / z)")
{
   Point3F pt, dest;
   dSscanf(argv[2],"%g %g %g", &pt.x,&pt.y,&pt.z);

   char *returnBuffer = Con::getReturnBuffer(256);   
   if (object->unproject(pt, &dest))
       dSprintf(returnBuffer,256,"%g %g %g", dest.x,dest.y,dest.z);
   else
       return ("0 0 0"); // or some more useful default
   return returnBuffer; 
}