GraczPoruszaSięKlawiaturą

const Keys = new (class {
  constructor() {
    this.pressedKeys = [];
    this.keysToRemove = [];
    this.forbidden = [37, 38, 39, 40, 65, 68, 83, 87];
  }
  add(key) {
    if (!this.pressedKeys.includes(key)) {
      console.log(`Pressed ${String.fromCharCode(key)}`);
      this.pressedKeys.push(key);
    }
  }
  preRemove(key) {
    if (!this.keysToRemove.includes(key)) {
      this.keysToRemove.push(key);
    }
  }
  remove(key) {
    if (this.pressedKeys.includes(key)) {
      console.log(`Released ${String.fromCharCode(key)}`);
      this.pressedKeys.splice(this.pressedKeys.indexOf(key), 1);
    }
  }
  playerMovesUsingKeyboard() {
    for (const key of this.forbidden) {
      if (this.pressedKeys.includes(key)) {
        return true;
      }
    }
    return false;
  }
})();
//Usuwanie w wybranym momencie
while (Keys.keysToRemove.length) {
  Keys.remove(Keys.keysToRemove[0]);
  Keys.keysToRemove.shift();
}
//Listenery
document.addEventListener("keydown", (event) => {
  if (["INPUT", "TEXTAREA"].includes(event.target.tagName)) {
    return;
  }
  Keys.add(event.which);
});

document.addEventListener("keyup", (event) => {
  if (["INPUT", "TEXTAREA"].includes(event.target.tagName)) {
    return;
  }
  Keys.preRemove(event.which);
});