SE/moving.html at master · WindUping/SE · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>MOVE</title>
    <style>
        canvas{
            background: #fff;
            border:2px #2ac1cc solid;
            background: url("011.jpg");
        }

        h1{
            font-family:Cambria,Cochin,Georgia,Times,"Times New Roman",Serif;
            font-size: x-large;
            color: #999999;
        }

        body{
            background: #f4ffec;
            padding:10px;
        }

        p{
            font-family:"Franklin Gothic Medium","Arial Narrow",Arial,sans-serif;
            font-size: 20px;
        }

        a{
            color:#3E99CA;
            text-decoration: none;
        }

        .info{
            background: #E2F0F8;
            border:2px #7eccb6 solid;
            width: 869px;
        }

        .place{

        }

    </style>
</head>
<body>
    <h1>Aircraft Cruising</h1>
    <div id="container">
        <canvas id="myCanvas" width="1850px" height="835px">
                Your browser does not support HTML5 canvas.
        </canvas>
    </div>

    <div class="info">
        <p><b>飞机位置信息:</b></p>
        <p id="locationX">X--</p>
        <p id="locationY">Y--</p>
    </div>

    <script type="text/javascript">

        var canvas=document.querySelector("#myCanvas");
        var ctx=canvas.getContext("2d");

        var locationX=document.getElementById("locationX");
        var locationY=document.getElementById("locationY");

        canvasWidth=canvas.width;
        canvasHeight=canvas.height;

        var myImage=new Image();
        myImage.src="flight5.jpg";

        var placeImage=new Image();
        placeImage.src="place.png";

        // depending on your browser, the right version of the rAF function will be returned...I hope
        var requestAnimationFrame = window.requestAnimationFrame
                                  ||window.mozRequestAnimationFrame
                                  ||window.webkitRequestAnimationFrame
                                  ||window.msRequestAnimationFrame;

        //this array contains a reference to every flight that you will create
        var flights=new Array();

        //the location class of light
        var c={
            x:0,
            y:0
        };

        //the flight get some angle
        var angle=0;
        var angle1=0;
        var speedX=0;
        var speedY=0;
        var radius=70;
        var radius1=0;
        var bounce=-0.8;

        //the function of draw to contain everything
        function draw() {
            ctx.clearRect(0,0,canvasWidth,canvasHeight);

            drawPlace();

//            drawScanning();

            drawScanning2();

            drawFlight();

            move();

            info();

            requestAnimationFrame(draw);

        }

        //Your can see some flights in this place
        function drawPlace() {
            ctx.beginPath();
            ctx.arc(50,50,100,0,Math.PI*2,true);
            ctx.closePath();
            ctx.fillStyle="#CC682E";
            ctx.fill();
        }

        //the flights is fly in the sky
        function drawFlight() {
            ctx.fillStyle="rgba(0,0,0,0,0.4)";
            ctx.strokeStyle="rgba(0,153,255,0.2)";
            ctx.drawImage(myImage,c.x,c.y,30,30);
        }

//        //the scanning of flight
//        function drawScanning() {
//            ctx.beginPath();
//            ctx.arc(c.x+radius*Math.cos(angle1),c.y+radius*Math.sin(angle1),5,0,Math.PI*2,true);
//            ctx.closePath();
//            ctx.fillStyle="#000";
//            ctx.fill();
//
//            angle1 += 0.1;
//        }

        //the scanning2 of flight
        function drawScanning2() {
            ctx.beginPath();
            ctx.arc(c.x,c.y+12,radius1,Math.PI*(1/6),Math.PI*(-1/6),true);
            ctx.closePath();
            ctx.fillStyle="red";
            ctx.fill();

            if(radius1 < 100) {
                radius1 += 5;
            }else{
                radius1 -= 100;
            }
        }

//        //check the flight arrived at edge
//        function checkEdge(x,y) {
//            if(x > canvasWidth){
//                speedX *= bounce;
//            }
//            if(y > canvasHeight){
//                speedY *= bounce;
//            }
//        }

        //how to fly for flights
        function move() {

            //flight fly randomly
//            var decimal=Math.random();
//            c.x=decimal*canvasWidth;
//            c.y=decimal*canvasWeight;

//            var a=0.001;
//            speedX += a;
//            //flight fly straight line in x
//            c.x += speedX;
//            if(c.x < canvasWidth) {
//                c.x += speedX;
//            }else{
//                c.x -= canvasWidth;
//            }
//
//            speedY = 3;
//            //flight fly straight line in y
//            c.y += speedY;
//            if(c.y < canvasHeight){
//                c.y += speedY;
//            }else{
//                c.y -= canvasHeight;
//            }


            //flight fly in smooth motion
            var range=60;
            if(c.x < canvasWidth) {
                c.x += 3;
            }else{
                c.x -= canvasWidth;
            }
            c.y = canvasHeight / 2 + Math.sin(angle) * range;
            angle += 0.1;

            //flight fly in curve

//            if(c.y > canvasHeight){
//                speedY *= bounce;
//            }
//            checkEdge(c.x,c.y);

        }

        //present the information of flight
        function info(){
            locationX.innerHTML="X-- <u>"+c.x.toFixed()+"</u>";
            locationY.innerHTML="Y-- <u>"+c.y.toFixed()+"</u>";
        }

        //invoke to draw the map again ang again
        draw();
        //setInterval(draw,100000);
    </script>
</body>
</html>