Attract-Mode Support Forum

Attract-Mode Support => Scripting => Topic started by: De_Cadanz on September 30, 2015, 11:37:20 PM

Title: Merge string variables.
Post by: De_Cadanz on September 30, 2015, 11:37:20 PM

How I can obtain current emulator name (name of CFG file) and merge it with text? I want to add ".png" extension to emulator name.
Something like this (i know, it's wrong code):

Code: [Select]

local emu = fe.game_info( Info.Emulator )
emu = emu+'.png'

Title: Re: Merge string variables.
Post by: liquid8d on October 01, 2015, 02:53:24 PM

Actually that is correct, but you will want to use it in a transition callback, something like:

Code: [Select]

local emuImage = fe.add_image("attract.png", 0, 0, 100, 100);

function transition( ttype, var, transition_time )
{
   if ( ttype == Transition.StartLayout || ttype == Transition.ToNewSelection || ttype == Transition.ToNewList )
   {
      local current = fe.game_info(Info.Emulator);
      emuImage.file_name = current + ".png";
   }
   return false;
}

FYI though - if you compile a recent build, I believe you can use the "magic tokens" directly in the filename you pass, so you can just do an fe.add_image("systems/[Emulator].png"); and it should update although I haven't tested that yet.

Title: Re: Merge string variables.
Post by: De_Cadanz on October 02, 2015, 03:02:11 AM

You miss fe.add_transition_callback("transition");
Thanks, you helps me a lot!