javascript_learning/shoot.html at master · SeanLeeCai/javascript_learning · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>Space Shooter</title>
    <style>
        #range{
            position: absolute;
            top: 0; left: 0;
            background: url(http://pic.58pic.com/58pic/13/17/93/44G58PICAwu_1024.jpg);
            background-size: 100%;
            cursor: crosshair;
            width: 100%;
            height: 100%;
        }
        #img1{
            position: absolute;
            border: none;
            left: 0;
            padding: 10px;
            height: 50px;
            width: 50px;
        }
        #score{
            font: 16px normal arial, verdana, sans-serif;
            color: #ffffff;
            padding: 10px;
        }
    </style>
</head>
<body>
    <div id="range">
        <div id="score"></div>
        <img src="http://img.sootuu.com/vector/2006-4/20064249177514.jpg" alt="Fire!" id="img1"/>
    </div>
    <script>
        var timer = null;
        var e1 = null;
        var score = 0;
        var shots = 0;
        function moveIt() {
            if(parseInt(e1.style.left) > (screen.width - 150)) {
                e1.style.left = 0;
            }
            e1.style.left = parseInt(e1.style.left) + 6 + 'px';
            e1.style.top = 100 + (80 * Math.sin(parseInt(e1.style.left)/50)) + 'px';
            timer = setTimeout(moveIt, 25);
        }
        function scoreUp() {
            score++;
        }
        function scoreboard() {
            document.getElementById("score").innerHTML = "Shots: " + shots + " Score: " + score;
        }
        window.onload = function () {
            e1 = document.getElementById("img1");
            e1.onclick = scoreUp;
            document.getElementById("range").onclick = function () {
                shots++;
                scoreboard();
            }
            scoreboard();
            e1.style.left = '50px';
            moveIt();
        }
    </script>
</body>
</html>