ps1_controller_check_state_input_getGamepads.js

const BUTTONS = {
    'TRIANGLE': 0x1000,
    'CIRCLE':   0x2000,
    'CROSS':    0x4000,
    'SQUARE':   0x8000
};

function isButtonPressed(state, button) {
    return (state.buttons & button) === 0;
}

function readGamepadState(gamepad) {
    if (!gamepad) return;

    const state = {
        buttons: gamepad.buttons,
    };

    console.log("Triangle pressed: ", isButtonPressed(state, BUTTONS['TRIANGLE']));
    console.log("Circle pressed: ", isButtonPressed(state, BUTTONS['CIRCLE']));
    console.log("Cross pressed: ", isButtonPressed(state, BUTTONS['CROSS']));
    console.log("Square pressed: ", isButtonPressed(state, BUTTONS['SQUARE']));
}

function updateGamepads() {
    const gamepads = navigator.getGamepads();
    for (const gamepad of gamepads) {
        if (gamepad) {
            readGamepadState(gamepad);
        }
    }
}

// Poll for gamepad state every 100ms
setInterval(updateGamepads, 100);