GameMaker Studio 2 has a number of dedicated actions that can be used to detect both analogue and digital controls from multiple connected game pads. These actions require you to specify a gamepad index value, which is a number (counting from 0) that represents the gamepad being selected. Note that when a gamepad is plugged in to your device (or it is removed) then an asynchronous System Event is triggered (however to deal with this you may need to use code).

The gamepad "slots" are indexed from 0 with slots 0 - 3 inclusive being only for Xinput gamepads, ie: Xbox360 controllers and compatibles. However you can also check slots 4 - ii inclusive for DirectInput gamepads, which means you can detect many other models of controller when connected through these slots.

The available gamepad actions are all listed below:

	Gamepad Get Axis
	Gamepad Get Trigger
	Gamepad Get Count
	Gamepad Get Connected
	Gamepad Set Axis Deadzone
	If Gamepad Button Pressed
	If Gamepad Button Down
	If Gamepad Button Released

Compatibility

The following list shows current compatibility across the platforms (note that this will change with future updates):

• Windows is fully supported with up to a maximum of 11 connected devices permitted at once. Note that on Windows, the first 4 gamepad slots (0 - 3) are handled using the XInput dll, meaning that only XBox controllers may be 100% compatible and that for other controller types you should check the rest of the gamepad slots (4 - 11).
  
  
• macOS is supported with up to a maximum of 4 connected devices permitted at once, and these devices can ONLY be of the type Playstation3 or Xbox 360. Please note that the "Build for Mac AppStore" option in Mac Game Options needs to be OFF for pad support to work.
  
  
• Ubuntu does also support GamePad input, but you may need to install additional libraries from the Ubuntu repository. You can do this easily by opening a command line terminal and typing the following:

  sudo apt-get install jstest-gtk
  sudo apt-get install joystick.
  

  This will install GUI support for the joystick as well as the joystick itself.
  
  

• HTML5 games support gamepads on most major browsers, except Safari.
  
  
• Gamepad support also extends to iOS with the iCade cabinet. The left axis maps to the stick controller (although the input is digital, not analogue), the four "face" buttons map to the cabinet front buttons, and the four shoulder buttons map to those at the back of the cabinet.
  
  
• Android export supports NYKO controllers and generic Bluetooth controllers (including the OUYA), but only when they are enabled, meaning that you will have to tick the iCade/Bluetooth option in the General section of the Android Game Options. They require API level 12 for them to work fully and it should be noted that GameMaker Studio 2 will register as connected any Bluetooth devices that your device is paired with, whether or not it's actually connected. Therefore this should be taken into account when assigning and checking "slots".
  
  
• On PS4, if you want to use the touch pad tracking you need to use the functions for the device_mouse_* buttons (there are no DnD™ actions for this).