update: was able to fix repeating space key shooting using

 if (e.repeat) { return }   

it returns a boolean specifically if a keyboard event is happening repeatedly

heres the entire function:

addEventListener("keydown", (e) => {
  if (game.over) return;
  switch (e.key) {
    case "a":
      keys.a.pressed = true;
      break;
    case "d":
      keys.d.pressed = true;
      break;
    case " ":
      keys.space.pressed = true;
      if (e.repeat) {
        return;
      }
      if (player.powerUp === "MachineGun") return;
      if (keys.space.pressed) {
        projectiles.push(
          new Projectile({
            position: {
              x: player.position.x + player.width / 2,
              y: player.position.y,
            },
            velocity: {
              x: 0,
              y: -10,
            },
          })
        );
      }

      break;
  }
});

Hey, Thanks for this great course!

I have the same problem with continuous space key press acting as machine gun, is there an elegant way to solve this? i tried playing with the keys.space.pressed boolean to no avail.

This does not happen however when playing with the mouse, so theres at least that

Hi ! Thank you for this course/game, it's so cool !

I have a problem, when I keep space bar pressed, that is multiple fire, like the machine gun...

I downloaded your source code to verify but I have the same problem.. I don't understand because you look not have this problem.

Thank you for your help =)