RetroArch mapping issues

[SalR]

Hi 

I'm not sure if I'm missing a setting or if this is actually possible.

I'm using a Ipac-4 ultimate and I have all my key bindings configured in RetroArch.  This is all working properly.

Now, I want to make a few changes specific to the different cores / systems that I'm using.  When I load a core all my mapped buttons are correct.  I want to change / move some of the functions to other mapped controllers. 

So, for example.  In stella, Atari 2600.  I want to change the mapping for "right difficulty A"  & "right difficulty B" switches.  I can only set this option for controller #1.  I would really like to map this to controller #2, but it is not listed in the options, for controller 2

[Headrush69]

This is a constraint due to Retroarch and that core mapping those functions to only Retropad #1.

There is a work around since you are using the iPac in keyboard mode: add a custom key config file for that core. In that config, you can map the keys from player #2 to buttons on the player #1 retropad and than remap in Retroarch as needed.

For example, I use my player #2 insert coin (6 key) and start button (2 key) for right difficulty buttons, so in my custom config I set player #1 L3 button  to '6' and player #1 R3 button to '2' and in Retroarch set those to the difficulty buttons.

Hope that make sense.

 

Edited November 13, 2020 by Headrush69

[SalR]

I think, I got it.

 

So, when I enter the F1 menu in game.  Back out to the main menu.  Map the P2 buttons I want to use to P1 controller.  Then navigate back to the core menu and associate the 

mapping in that control input menu.  Save for that core only or directory only

 

 

[Headrush69]

No. Your iPac keys are mapped to abstract Retropad devices, that have Start, Select, D-pad, A, B, X, Y, etc.

If you look in your Retroarch.cfg file you will see those mappings. 
 

For example, input_player1_x  = “ctrl”

Once you make a core or folder override, you can override those defaults. (It’s in Retroarch/config folder)

What you do is change some of the player1 controls to use the iPac player 2 keys. Then you can map them in the controls quick menu of Retroarch since they will appear as player 1 controls. (Even though the keys are player 2 to iPac)

for example, in my iPac, key “2” is player 2 start. In Retroarch.cfg there is a line input_player2_start = “2”

so in the override file in the config folder I add input_player1_l3 = “2” and input_player2_start =“nul”

so now in Retroarch I set player1 L3 button to right_difficulty_a

even though it’s iPac player 2, Retroarch sees as player 1