multigamepad.js

// @ts-check

kaplay();
setGravity(2400);
setBackground(0, 0, 0);
loadSprite("bean", "/sprites/bean.png");

const playerColors = [
    rgb(252, 53, 43),
    rgb(0, 255, 0),
    rgb(43, 71, 252),
    rgb(255, 255, 0),
    rgb(255, 0, 255),
];

let playerCount = 0;

function addPlayer(gamepad) {
    const player = add([
        pos(center()),
        anchor("center"),
        sprite("bean"),
        color(playerColors[playerCount]),
        area(),
        body(),
        doubleJump(),
    ]);

    playerCount++;

    onUpdate(() => {
        const leftStick = gamepad.getStick("left");

        if (gamepad.isPressed("south")) {
            player.doubleJump();
        }

        if (leftStick.x !== 0) {
            player.move(leftStick.x * 400, 0);
        }
    });
}

// platform
add([
    pos(0, height()),
    anchor("botleft"),
    rect(width(), 140),
    area(),
    body({ isStatic: true }),
]);

// add players on every gamepad connect
onGamepadConnect((gamepad) => {
    addPlayer(gamepad);
});