Need help squirrel function "file exist" working only on f.e. startup

Attract-Mode Support > Scripting

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qqplayer:
I made this function , the final goal is to show a "pdfIcon" when you have the game manual on the selected folder "pdffilepath"

--- Code: ---// pdfIcon

local pdffilepath="H://Attract//layouts//Basic//pdf//";
local game_name = fe.game_info(Info.Name);
local pdffile = pdffilepath + game_name + config["extension"];

local littlepngicon = fe.add_image( "manual.png", 0, 0, 200, 200);

fe.load_module("file");
function file_exist(pdffile)
{
print(pdffilepath + game_name + config["extension"]);
try {file(pdffile, "r" );return true;}catch(e){return false;}
}

if (file_exist(pdffile)) littlepngicon.visible=true
else littlepngicon.visible=false;
--- End code ---

Thanks to Daimon , Oomek and the other people who helped with the code.

As I said , only works when I start the frontend, If I start AM and the last selected game has the pdf manual the icon shows.
But when I move between the diferent games it doesnt change.
I mean if appears when I start the f.e. keeps showing all the time and if I selected a game who doesnt have the pdf manual - close A.M. - and open it again the icon is gone and doesnt shows anymore even if I move to a game who has the pdf manual.

Any help?

Arcadefan1:
I am not a pro, but don't you need to use a transition callback? Something like "to new selection"?

qqplayer:

--- Quote from: Arcadefan1 on March 25, 2018, 01:06:02 PM ---I am not a pro, but don't you need to use a transition callback? Something like "to new selection"?

--- End quote ---

I made the transition callback but doesnt work , just to test:

--- Code: ---//pdfIcon

local pdffilepath="H://Attract//layouts//Basic//pdf//";

local littlepngicon = fe.add_image( "manual.png", 0, 0, 200, 200);
littlepngicon.visible=false;

function file_exist( ttype, var, ttime ) {
switch ( ttype ) {
case Transition.ToNewSelection|Transition.ToNewList|Transition.EndNavigation:
local game_name = fe.game_info(Info.Name);
local pdffile = pdffilepath + game_name + config["extension"];
print(pdffilepath + game_name + config["extension"])
break;
}
return false;
}

fe.add_transition_callback( "file_exist" );
--- End code ---

Is "printing" the right selected game but every attemp to check the "file exists" is broken the f.e.

--- Code: ---fe.load_module("file");

function catch_file()
{
try {file(pdffile, "r" );return true;}
catch(e){return false;}
}

if (file_exist(pdffile)) littlepngicon.visible=true;

catch_file();
--- End code ---

--- Quote ---
--- Code: ---AN ERROR HAS OCCURED [the index 'pdffile' does not exist]

CALLSTACK
*FUNCTION [main()] H:\Attract\layouts\Basic\pdf\/layout.nut line [95]

LOCALS
[littlepngicon] INSTANCE
[pdffilepath] "H://Attract//layouts//Basic//pdf//pdf//"
[l] INSTANCE
[lb] INSTANCE
[t] INSTANCE
[config] TABLE
[vargv] ARRAY
[this] TABLE
Script Error in H:\Attract\layouts\Basic\pdf\/layout.nut - the index 'pdffile' does not exist
--- End code ---

--- End quote ---

Daimon:
You are almost there, see:

//pdfIcon

fe.load_module("file");

function file_exist()
{
try {file(pdffile, "r" );return true;}
catch(e){return false;}
}

local pdffilepath="H://Attract//layouts//Basic//pdf//";

local littlepngicon = fe.add_image( "manual.png", 0, 0, 200, 200);
littlepngicon.visible=false;

function mytransition( ttype, var, ttime ) {
switch ( ttype ) {
case Transition.ToNewSelection|Transition.ToNewList|Transition.EndNavigation:
local game_name = fe.game_info(Info.Name);
local pdffile = pdffilepath + game_name + config["extension"];
//print(pdffilepath + game_name + config["extension"])
if (file_exist(pdffile)) littlepngicon.visible=true
else littlepngicon.visible=false;
break;
}
return false;
}

fe.add_transition_callback( "mytransition" );

qqplayer:

--- Quote from: Daimon on March 27, 2018, 11:24:57 AM ---You are almost there, see:

//pdfIcon

fe.load_module("file");

function file_exist()
{
try {file(pdffile, "r" );return true;}
catch(e){return false;}
}

local pdffilepath="H://Attract//layouts//Basic//pdf//";

local littlepngicon = fe.add_image( "manual.png", 0, 0, 200, 200);
littlepngicon.visible=false;

function mytransition( ttype, var, ttime ) {
switch ( ttype ) {
case Transition.ToNewSelection|Transition.ToNewList|Transition.EndNavigation:
local game_name = fe.game_info(Info.Name);
local pdffile = pdffilepath + game_name + config["extension"];
//print(pdffilepath + game_name + config["extension"])
if (file_exist(pdffile)) littlepngicon.visible=true
else littlepngicon.visible=false;
break;
}
return false;
}

fe.add_transition_callback( "mytransition" );

--- End quote ---

:(

--- Code: ---Starting Attract-Mode v2.2.1 (Windows)
Config: Y:\AM_HyperpiePC\Attract\attract.cfg

*** Initializing display: 'Sega Master System'
- Loaded master romlist 'Sega Master System' in 14 ms (334 entries kept, 0 disc
arded)
- Constructed 16 filters in 0 ms (5344 comparisons)
- Loaded layout: Y:\AM_HyperpiePC\Attract\layouts/Basic/ (layout.nut)

AN ERROR HAS OCCURED [wrong number of parameters]

CALLSTACK
*FUNCTION [mytransition()] Y:\AM_HyperpiePC\Attract\layouts/Basic/layout.nut lin
e [89]

LOCALS
[pdffilepath] "Y://AM_HyperpiePC//Attract//layouts//Basic//pdf//"
[config] TABLE
[littlepngicon] INSTANCE
[pdffile] "Y://AM_HyperpiePC//Attract//layouts//Basic//pdf//Ace of Aces (Europe)
.pdf"
[game_name] "Ace of Aces (Europe)"
[ttime] 0
[var] 0
[ttype] 7
[this] TABLE
Script Error in transition function: mytransition - wrong number of parameters

AN ERROR HAS OCCURED [wrong number of parameters]

CALLSTACK
*FUNCTION [mytransition()] Y:\AM_HyperpiePC\Attract\layouts/Basic/layout.nut lin
e [89]

LOCALS
[pdffilepath] "Y://AM_HyperpiePC//Attract//layouts//Basic//pdf//"
[config] TABLE
[littlepngicon] INSTANCE
[pdffile] "Y://AM_HyperpiePC//Attract//layouts//Basic//pdf//4 PAK All Action (Au
stralia).pdf"
[game_name] "4 PAK All Action (Australia)"
[ttime] 0
[var] 0
[ttype] 7
[this] TABLE
Script Error in transition function: mytransition - wrong number of parameters

AN ERROR HAS OCCURED [wrong number of parameters]

CALLSTACK
*FUNCTION [mytransition()] Y:\AM_HyperpiePC\Attract\layouts/Basic/layout.nut lin
e [89]

LOCALS
[pdffilepath] "Y://AM_HyperpiePC//Attract//layouts//Basic//pdf//"
[config] TABLE
[littlepngicon] INSTANCE
[pdffile] "Y://AM_HyperpiePC//Attract//layouts//Basic//pdf//20 em 1 (Brazil).pdf
"
[game_name] "20 em 1 (Brazil)"
[ttime] 0
[var] 0
[ttype] 7
[this] TABLE
Script Error in transition function: mytransition - wrong number of parameters

--- End code ---

This is the "line 89"

--- Code: --- if (file_exist(pdffile)) littlepngicon.visible=true
--- End code ---

Thanks , again I think is close but...

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