How can i write this program with torque script

#1 Look in the defaultbinds.cs file on the client/server .

#2

Function openDoor(%val)
{
   if ( %val )
        door.open();    // comment
}

moveMap.bind(keyboard, f, openDoor);

#3 Note novack's code is correct, but only for single-player games.
for a networked game it would be more like:
(very rough outline)

on client:
---------------------------------------------
Function tryToOpenDoor(%val)
{
   if ( !%val )
      return;
   
   commandToServer('tryToOpenDoor');
}

moveMap.bind(keyboard, f, tryToOpenDoor);
---------------------------------------------

on server:
---------------------------------------------
function serverCmdTryToOpenDoor(%client)
{
   door.open(%client.player);   // door.open() might want to know who is trying to open the door..
}
---------------------------------------------

#4 Purist :P