2 player retro pi setup

[A Former User]

Hi
A few days ago i just both rpi 3 the one with 1.2 ghz. I installed retropi. I have connected a usb game-pad and a keyboard to the rpi hoping i can play fba aerofighters in 2 players, one player with keyboard and the other with game-pad. However the second player is not configured and both game-pad and keyboard are controlling player 1.
Is there a chance i can configure player 1 with keyboard and player 2 with game-pad? or vice-versa?.
I am using usb not gpio pins.

[edmaul69]

In the retroarch.cfg for that system add:

Input_player2_device = 3

I think thats correct. I am on the road so i cant get to my computer to verify. I think the retroarch config you need is:
/opt/retropie/configs/fba/retroarch.cfg
Make sure you put it above the #include line

[A Former User]

is there way to apply this for all the emulators? like nes snes etc?

[mediamogul]

@badboy1985ro Not too long ago, I added the ability for either player to use keyboard controls if necessary in every RetroArch core by altering /opt/retropie/configs/all/retroarch.cfg. You can use my alterations as a starting point for your own personal preference.

By default, the entry you want to alter looks like this:

# Keyboard input, Joypad and Joyaxis will all obey the "nul" bind, which disables the bind completely, 
# rather than relying on a default.
input_player1_a = "x"
input_player1_b = "z"
input_player1_y = "a"
input_player1_x = "s"
input_player1_start = "enter"
input_player1_select = "rshift"
input_player1_l = "q"
input_player1_r = "w"
input_player1_left = "left"
input_player1_right = "right"
input_player1_up = "up"
input_player1_down = "down"
# input_player1_l2 =
# input_player1_r2 =
# input_player1_l3 =
# input_player1_r3 =

# Two analog sticks (DualShock-esque).
# Bound as usual, however, if a real analog axis is bound,
# it can be read as a true analog.
# Positive X axis is right, Positive Y axis is down.
# input_player1_l_x_plus =
# input_player1_l_x_minus =
# input_player1_l_y_plus =
# input_player1_l_y_minus =
# input_player1_r_x_plus =
# input_player1_r_x_minus =
# input_player1_r_y_plus =
# input_player1_r_y_minus =

You'll want to alter it to look something like this:

# Keyboard input, Joypad and Joyaxis will all obey the "nul" bind, which disables the bind completely, 
# rather than relying on a default.
input_player1_a = "a"
input_player1_b = "b"
input_player1_y = "y"
input_player1_x = "x"
input_player1_start = "t"
input_player1_select = "e"
input_player1_l = "l"
input_player1_r = "r"
input_player1_left = "left"
input_player1_right = "right"
input_player1_up = "up"
input_player1_down = "down"
input_player1_l2 = "d"
input_player1_r2 = "f"
input_player1_l3 = "c"
input_player1_r3 = "v"

input_player2_a = "k"
input_player2_b = "m"
input_player2_y = "o"
input_player2_x = "n"
input_player2_start = "num9"
input_player2_select = "num0"
input_player2_l = "p"
input_player2_r = "q"
input_player2_left = "g"
input_player2_right = "h"
input_player2_up = "i"
input_player2_down = "j"
input_player2_l2 = "s"
input_player2_r2 = "u"
input_player2_l3 = "w"
input_player2_r3 = "z"

# Two analog sticks (DualShock-esque).
# Bound as usual, however, if a real analog axis is bound,
# it can be read as a true analog.
# Positive X axis is right, Positive Y axis is down.
# input_player1_l_x_plus = "right"
# input_player1_l_x_minus = "left"
# input_player1_l_y_plus = "down"
# input_player1_l_y_minus = "up"
# input_player1_r_x_plus = "num2"
# input_player1_r_x_minus = "num1"
# input_player1_r_y_plus = "num4"
# input_player1_r_y_minus = "num3"

# input_player2_l_x_plus = "h"
# input_player2_l_x_minus = "g"
# input_player2_l_y_plus = "j"
# input_player2_l_y_minus = "i"
# input_player2_r_x_plus = "num6"
# input_player2_r_x_minus = "num5"
# input_player2_r_y_plus = "num8"
# input_player2_r_y_minus = "num7"

You'll notice that I also added the ability to control the emulated analog sticks from the keyboard as well, but I decided to comment them out for my purposes. If you want those controls to be functional, you'll have to remove the # at the beginning of the lines.

[meleu]

@badboy1985ro said in 2 player retro pi setup:

is there way to apply this for all the emulators? like nes snes etc?

/opt/retropie/configs/SYSTEM_NAME/retroarch.cfg is the system specific retroarch config file.

/opt/retropie/configs/all/retroarch.cfg is the global retroarch config file.

More info here:
https://github.com/RetroPie/RetroPie-Setup/wiki/RetroArch-Configuration#hardcoded-configurations