[SOLVED] Gamepad input

Codeknight999 · April 3, 2024, 11:21pm

Hello, all
I have been looking at gamepad stuff, (GitHub and playcanvas) But I can’t get I to work. All I need is how to get when buttons are pressed. I am using an Xbox controller so Y/B/A/X or as this website says: Gamepad 0,1,2,3. Does anyone know how to do this? Thanks!

Albertos · April 3, 2024, 11:33pm

Hi @Codeknight999!

Have you enabled gamepads in the projects settings?

You can check the example below on how it reads input from a gamepad.

github.com

playcanvas/engine/blob/main/scripts/camera/first-person-camera.js#L527


      
          
              this.on('enable', addEventListeners);
              this.on('disable', removeEventListeners);
          
              addEventListeners();
          };
          
          GamePadInput.prototype.update = function (dt) {
              var app = this.app;
          
              var gamepads = navigator.getGamepads ? navigator.getGamepads() : [];
          
              for (var i = 0; i < gamepads.length; i++) {
                  var gamepad = gamepads[i];
          
                  // Only proceed if we have at least 2 sticks
                  if (gamepad && gamepad.mapping === 'standard' && gamepad.axes.length >= 4) {
                      // Moving (left stick)
                      this.leftStick.pos.set(gamepad.axes[0], gamepad.axes[1]);
                      applyRadialDeadZone(this.leftStick.pos, this.remappedPos, this.deadZoneLow, this.deadZoneHigh);

Codeknight999 · April 3, 2024, 11:46pm

Silly me, I forgot to turn the gamepad on. I tried out this code:

   var gamepads = navigator.getGamepads ? navigator.getGamepads() : [];
      var gamepad = gamepads[i];
 // Jumping (bottom button of right cluster)
            if (gamepad.buttons[0].pressed) {
                console.log('hello');
            }

but I am getting this error:Cannot read properties of null (reading ‘buttons’) for line 4. What am I doing wrong?

Codeknight999 · April 3, 2024, 11:47pm

I am sorry in advance, I will probably reply in a few days as I will be out of town.

Albertos · April 4, 2024, 12:01am

That sounds like there is no gamepad detected or something like that. I hope someone else has more knowledge about this.

Codeknight999 · April 6, 2024, 9:29pm

It’s fine, I found a workaround. Thanks anyway!