getGamepads()

The getGamepads() function provides access to connected game controllers in OSL applications. It returns an array of gamepad objects with normalized properties for easy access to controller inputs.

// Get all connected gamepads
array gamepads = getGamepads()

// Check if any gamepad is connected
if gamepads.len > 0 (
  // Use the first gamepad
  gamepad @= gamepads[1]
  say "Gamepad mode enabled"
)

Return Value

Returns an array of gamepad objects, with each object containing the following properties:

• id: String identifying the gamepad

• index: Numeric index of the gamepad

• connected: Boolean indicating if the gamepad is connected

• timestamp: The last time the gamepad state was updated

• mapping: String indicating the mapping type (e.g., "standard")

• axes: Array of objects representing analog sticks, each with:

  • x: X-axis value (range: -1.0 to 1.0)

  • y: Y-axis value (range: -1.0 to 1.0, inverted for natural directional control)

• buttons: Array of button objects, each with:

  • pressed: Boolean indicating if the button is pressed

  • touched: Boolean indicating if the button is touched

  • value: Numeric value of the button pressure (range: 0.0 to 1.0)

• haptic: Function to trigger vibration feedback on the controller (when supported)

Common Button Indexes

Standard gamepad mappings can be found below:Mappings

Example application

An app with support for gamepads is Arrow by Mist, source code found below:

Arrow On Github

Example: Checking a Specific Button Press

if gamepads.len > 0 (
  // Check if the A button (index 1) is pressed
  if gamepads[1].buttons[1]["pressed"] (
    say "A button pressed!"
  )
)

Example: Reading Analog Stick Values

if gamepads.len > 0 (
  // Get left stick X and Y values
  leftX = gamepads[1].axes[1].x
  leftY = gamepads[1].axes[1].y
  
  // Move a character based on left stick position
  player.x += leftX * player.speed
  player.y += leftY * player.speed
)

Example: Using Haptic Feedback

if gamepads.len > 0 (
  // Trigger vibration on the controller
  void gamepads[1].haptic({
    duration: 100,       /* vibration duration in milliseconds */
    weakMagnitude: 0.5,  /* intensity of the weak motor (0.0 to 1.0) */
    strongMagnitude: 0.8  /* intensity of the strong motor (0.0 to 1.0) */
  })
)

Notes

• If no gamepads are connected, the function returns an empty array.

• Gamepad support varies by browser and device.

• The haptic function may not work on all controllers or platforms.