Was half way 
already changed CurrentPlaylist for Playlist(0)
That didn’t give the wanted result .
Try tomorrow PlaybackControl(0)
Thanks again
With PlaybackControl(0) and Playlist(0 ) it stays the same .
Player A is red when playing one off the carts.
Any (!) other scripts running?
No I have only added like above in what I had but then for for button 19 20 21
procedure OnPlayerStart(PlaylistIndex: integer; PlayerIndex: integer; Item: IPlaylistItem);
begin
if (PlaylistIndex= 1) and (PlayerIndex= 0) then begin
AirenceRemote(0).SetLED(19, acRed);
And that also for 20 and 21
To deal with cart players make use of procedures OnCartwallPlayerStart and -Stop or OnCartwallPlayerStateChange resp., the syntax of which to be found in the file Background Script Template.mls.
What I don’t quite get is the use of a playlist for the cartwall. Is this just to provide some kind of „storing shelf“ or is there some other functionality I don’t see as yet?
There just normal players like player A/B but there used as cart.
The playlist can be used for evrything , jingles records .
It’s used a lot in the Netherlands Dalet started and now we have Omniplayer in the national radio stations mostly the have 4 carts like this .
Okay, then forget about what I said about Cartwalls, leave the first script (for Playlist(0)) as is and incorporate a second script like this:
procedure CheckPlayer;
var
i: integer;
begin
for i := 0 to 2 do
begin
if Playlist(1).GetPlayer(i).GetIsNext then
AirenceRemote(0).SetLED(19 + i, acGreen)
else
begin
case PlaybackControl(1).GetPlayer(i).GetState of
psLoaded:
AirenceRemote(0).SetLED(19 + i, acYellow);
psPlaying:
AirenceRemote(0).SetLED(19 + i, acRed);
psEmpty:
AirenceRemote(0).SetLED(19 + i, acNone);
psPaused:
AirenceRemote(0).SetLEDBlink(19 + PlayerIndex, acRed, acYellow, absFast);
end;
end;
end;
end;
procedure OnLoad;
var
i: integer;
begin
for i := 0 to 2 do
AirenceRemote(0).SetLED(19 + i, acNone);
CheckPlayer;
end;
procedure OnUnLoad;
var
i: integer;
begin
for i := 0 to 2 do
AirenceRemote(0).SetLED(19 + i, acNone);
end;
procedure OnPlayerStateChange(PlaylistIndex: integer; PlayerIndex: integer;
OldState: TPlayerState; NewState: TPlayerState; Item: IPlaylistItem);
begin
if PlaylistIndex = 1 then
CheckPlayer;
end;
begin
end.
Hope this works.
At home and imported you script in a new script and get a error : [Error] (19:45): Unknown identifier ‘PlayerIndex’
Try it also with a script that only addresses the cartplayers , works great but when you ad your first script it shows the player A (17) button again 
Let me explain it one more time Player 1 till 3 19 20 and 21 have all 1 playlist so 19 has playlist 1 ,20 has playlist 2 and 21 has playlist 3 there is no next state because there is only 1 player with 1 playlist.
Copy-and-paste-Error: change
psPaused:
AirenceRemote(0).SetLEDBlink(19 + PlayerIndex, acRed, acYellow, absFast);
to
psPaused:
AirenceRemote(0).SetLEDBlink(19 + i, acRed, acYellow, absFast);
please.
Okay, have to think about that.
Works on button 19 with a new error 7-3-2022 16:29:15 Error Runtime error “Range check error” in background script handling message: PLAYERCONTROL_STATECHANGE 4CEBA09C6C531710 00 00000001 00000000 05 00 ?
And still button 17 lights up when starting player 1 (19)
It feels like I take a lot off your time , its no obligation 
But its appreciated a lot
Okay, what about this (as the second script):
procedure OnLoad;
var
i: integer;
begin
for i := 0 to 2 do
AirenceRemote(0).SetLED(19 + i, acNone);
end;
procedure OnUnLoad;
var
i: integer;
begin
for i := 0 to 2 do
AirenceRemote(0).SetLED(19 + i, acNone);
end;
procedure OnPlayerStateChange(PlaylistIndex: integer; PlayerIndex: integer;
OldState: TPlayerState; NewState: TPlayerState; Item: IPlaylistItem);
begin
if PlaylistIndex > 0 then
begin
case NewState of
psLoaded:
AirenceRemote(0).SetLED(18 + PlaylistIndex, acYellow);
psPlaying:
AirenceRemote(0).SetLED(18 + PlaylistIndex, acRed);
psEmpty:
AirenceRemote(0).SetLED(18 + PlaylistIndex acNone);
psPaused:
AirenceRemote(0).SetLEDBlink(18 + PlaylistIndex, acRed, acYellow, absFast);
end;
end;
end;
begin
end.
(Untested. Please try.)
Same as my script ( yours with less text 
) everything works but when playing player A lights up.
And I beginning to learn something there was an error , you forgot a , (psEmty)
Disable the first script and run the (new) second only, please.
Then the 3 players run without lighting up player A
In this case the trouble comes from the first one. Please change OnPlayerStateChange in the first script again to
procedure OnPlayerStateChange(PlaylistIndex: integer; PlayerIndex: integer;
OldState: TPlayerState; NewState: TPlayerState; Item: IPlaylistItem);
begin
if PlaylistIndex = 0 then
begin
CheckPlayer;
case NewState of
psPlaying: AirenceRemote(0).SetLED(17 + PlayerIndex, acRed);
psPaused: AirenceRemote(0).SetLEDBlink(17 + PlayerIndex, acRed, acYellow, absFast);
psEmpty: AirenceRemote(0).SetLED(17 + PlayerIndex, acNone);
end;
end;
end;
Yes!!! super thanks a lot
There where 2 errors but I found them myself .
Good. Always a little awkward to debug remotely. Would you please be so kind and post the two working scripts so that future Airence owners can make use of them?
1 Like
Script for player’s A - B on button 17 18
function abs(r: integer): integer;
begin
if r < 0 then
Result := r * -1
else
Result := r;
end;
procedure CheckPlayer;
var
i, k: integer;
begin
for i := 0 to 1 do
begin
k := abs(i - 1);
if CurrentPlaylist.GetPlayer(i).GetIsNext then
begin
AirenceRemote(0).SetLED(17 + i, acGreen);
if CurrentPlaybackControl.GetPlayer(k).GetState <> psPlaying then
AirenceRemote(0).SetLED(17 + k, acYellow)
else
AirenceRemote(0).SetLED(17 + k, acRed);
end;
end;
end;
procedure OnLoad;
var
i: integer;
begin
for i := 0 to 1 do
AirenceRemote(0).SetLED(17 + i, acNone);
CheckPlayer;
end;
procedure OnUnLoad;
var
i: integer;
begin
for i := 0 to 1 do
AirenceRemote(0).SetLED(17 + i, acNone);
end;
procedure OnPlayerStateChange(PlaylistIndex: integer; PlayerIndex: integer;
OldState: TPlayerState; NewState: TPlayerState; Item: IPlaylistItem);
begin
if PlaylistIndex = 0 then
begin
CheckPlayer;
if NewState = psPlaying then
AirenceRemote(0).SetLED(17 + PlayerIndex, acRed)
else if NewState = psEmpty then
AirenceRemote(0).SetLED(17 + PlayerIndex, acNone);
end;
end;
begin
end.
Script for 3 extra player’s (omniplayer look) on button’s 19 20 21
procedure OnLoad;
var
i: integer;
begin
for i := 0 to 2 do
AirenceRemote(0).SetLED(19 + i, acNone);
end;
procedure OnUnLoad;
var
i: integer;
begin
for i := 0 to 2 do
AirenceRemote(0).SetLED(19 + i, acNone);
end;
procedure OnPlayerStateChange(PlaylistIndex: integer; PlayerIndex: integer;
OldState: TPlayerState; NewState: TPlayerState; Item: IPlaylistItem);
begin
if PlaylistIndex > 0 then
begin
case NewState of
psLoaded:
AirenceRemote(0).SetLED(18 + PlaylistIndex, acGreen);
psPlaying:
AirenceRemote(0).SetLED(18 + PlaylistIndex, acRed);
psEmpty:
AirenceRemote(0).SetLED(18 + PlaylistIndex, acNone);
psPaused:
AirenceRemote(0).SetLEDBlink(18 + PlaylistIndex, acRed, acYellow, absFast);
end;
end;
end;
begin
end.
begin
end.
1 Like