js challenge day 16

mouse Shadow

 

Code

  <script>
    const hero = document.querySelector('.hero');
    const text = hero.querySelector('h1');
    const walk = 500; // 500px

    const shadow = (e) => {
      const { offsetWidth: width, offsetHeight: height } = hero;
      let { offsetX: x, offsetY: y } = e;

      if (e.target.className !== 'hero') {
        x = x + e.target.offsetLeft;
        y = y + e.target.offsetTop;
      }

      const xWalk = Math.round((x / width * walk) - (walk / 2));
      const yWalk = Math.round((y / height * walk) - (walk / 2));

      text.style.textShadow = `
      ${xWalk}px ${yWalk}px 0 rgba(255,0,255,0.7),
      ${xWalk * -1}px ${yWalk}px 0 rgba(0,255,255,0.7),
      ${yWalk}px ${xWalk * -1}px 0 rgba(0,255,0,0.7),
      ${yWalk * -1}px ${xWalk}px 0 rgba(0,0,255,0.7)
    `;
    }
    hero.addEventListener('mousemove', shadow)
  </script>

 

느낀 점 & 배운 점

마우스가 움직임에 따라, 텍스트쉐도우를 바꿔주는 과제였습니다.

이렇게 동적으로 textShadow를 바꿔본 경험은 없어서 신기했습니다.