JavaScript游戏，如何改变给出动作的键

// 默认按键映射
const defaultKeys = {
  moveLeft: 'ArrowLeft',
  moveRight: 'ArrowRight',
  jump: 'Space'
};

// 当前按键映射
let currentKeys = {...defaultKeys};

// 更新按键映射的函数
function updateKey(action, newKey) {
  if (currentKeys.hasOwnProperty(action)) {
    currentKeys[action] = newKey;
  }
}

// 添加键盘事件监听器
document.addEventListener('keydown', (event) => {
  for (const [action, key] of Object.entries(currentKeys)) {
    if (event.code === key) {
      // 执行对应的动作
      console.log(`执行动作: ${action}`);
      break;
    }
  }
});

// 示例：改变移动左键为'A'
updateKey('moveLeft', 'KeyA');