jQuery 문서 목록

jQuery 코드 조각

.animate() 연습

<!DOCTYPE html>
<html>
 
<head>
  <meta charset="utf-8">
  <meta name="viewport"
    content="initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, width=device-width, user-scalable=no, minimal-ui">
  <meta name="apple-mobile-web-app-capable" content="yes" />
  <meta name="keywords" content="">
  <meta name="description" content="">
  <title>CSS Animate TEST</title>
 
  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
  <script src="./lib/jquery-ui-1.12.1/jquery-ui.js"></script> <!-- 다운받아서 쓰자 -->
</head>
<!-- 문서 시작 ------------------------------- -->
 
<body>
 
  <style>
    .samp_box {
      width: 100px;
      height: 100px;
      position: fixed;
      background: #0d77b6;
    }
    #sample_box_1 {
      left: 50px;
      top: 50px;
    }
    #sample_box_2 {
      left: 50px;
      top: 50px;
      display:none;
    }
 
    .btn_t1 {
      width: 100px;
      height: 30px;
      background-color:lightgray;
      position: relative; /* z-index 가 통하려면 position 이 필요하다 */
      z-index: 100;
      border-style: solid;
      border-width: 1px;
      display:flex; /* 아래 키워드를 쓰기 위한 display:flex 추가 */
      align-items: center; /* 세로 정렬, 센터 */
      justify-content: center; /* 가로 정렬, 센터 */
    }
  </style>
 
  <div id='sample_box_1' class='samp_box'></div>
  <div id='sample_box_2' class='samp_box'></div>
 
  <div id='btn_a' class='btn_t1'>클릭 A</div>
  <div id='btn_reset' class='btn_t1'>리셋</div>
 
</body>
<!-- 종료 ------------------------------- -->
 
</html>
 
<script>
  $('#btn_a').click(function () {
    //$(this).hide();
    box_move();
  });
  $('#btn_reset').click(function () {
    box_reset();
  });
 
  // 박스 이동
  function box_move()
  {
    var _box = $('#sample_box_1');
    var _pos = _box.position();
    var _doc_root = $(document);
    var _doc_w = _doc_root.width();
    var _doc_h = _doc_root.height();
 
    var _new_x = get_rand_int(0, _doc_w);
    var _new_y = get_rand_int(0, _doc_h);
 
    if (_pos.left == 50)
    {
      show_box_afterimage();
      _box.animate(
        { left: _new_x + "px", top: _new_y + "px" },
        200,
        "easeOutBack",
        function() {
          setTimeout(function() { box_reset(); }, 500);
        });
    }
  }
 
  // 박스 리셋
  function box_reset() {
    var _box = $('#sample_box_1');
    var _pos = _box.position();
    show_box_afterimage();
    _box.animate({ left: "50px", top: "50px" }, 200, "easeOutBack");
  }
 
  function show_box_afterimage()
  {
    var _box1 = $('#sample_box_1');
    var _box2 = $('#sample_box_2');
    var _pos = _box1.position();
    _box2.css({ opacity: 1, left: _pos.left, top: _pos.top });
    _box2.show();
    _box2.animate({ opacity: 0 }, 80, "linear");
  }
 
  // https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Math/random
  function get_rand_int(min, max) {
    min = Math.ceil(min);
    max = Math.floor(max);
    return Math.floor(Math.random() * (max - min)) + min; //최댓값은 제외, 최솟값은 포함
  }
</script>
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.animate() 연습
