左右躲避障碍-神手ts版本

TypeScript-左右躲避障碍-神手

学习typescript,第一步应该是学习官方文档，理解最基础的语法。第二步开始用typescript实现一些js+css 或者canvas类型的游行。现在开始我们用ts写跳一跳

 前言：

　　最近微信小程序里面，出现了一个左右手躲避障碍物的游戏：神手。玩了一下觉得很有意思，决定用typescript写一版。

核心点：

　　1.识别手势动作：双指同时点击，单指随机放开

　　2.障碍物的成对生成。

　　3.动画帧的优化

游戏截图

　　

Typescript脚本：

　　

//1.创建障碍
//2.移动障碍
//3.小球控制
//4.碰撞检测
module game {

    interface FootBall {
        node: JQuery<HTMLElement>;
        track: Track;
    }
    enum Direction {
        left, right
    }
    enum Track {
        one, two, three, four
    }
    let mask: JQuery<HTMLElement> = $(".game");
    let speed: number = 10;
    let score: number = 0;
    let rblist: Array<RandBox> = [];
    let roadList: Array<Road> = [];
    let ft1: FootBall = { node: $("#ft1"), track: Track.two };
    let ft2: FootBall = { node: $("#ft2"), track: Track.three };
    //h5的专门适应绘制动画的属性
    window.requestAnimationFrame =
        window.requestAnimationFrame ||
        window.webkitRequestAnimationFrame ||
        (function () {
            return function (callback: Function, element: { __lastTime: number }) {
                var lastTime = element.__lastTime;
                if (lastTime === undefined) {
                    lastTime = 0;
                }
                var currTime = Date.now();
                var timeToCall = Math.max(1, 33 - (currTime - lastTime));
                window.setTimeout(callback, timeToCall);
                element.__lastTime = currTime + timeToCall;
            };
        })();
    window.cancelAnimationFrame = window.cancelAnimationFrame || window.webkitCancelAnimationFrame;
    let requestAnimationFrameFlag = 0;
    class MathHelp {
        /**
         * 返回范围内随机数[min,max]
         * @param min 最小值
         * @param max 最大值
         */
        static RandRange(min: number, max: number): number {
            return Math.floor(Math.random() * (max - min + 1) + min);
        }
    }
    export class Road {
        top: number = 0;
        id: number = 0;
        heigth: number = document.documentElement.clientHeight;
        node: JQuery<HTMLElement> = $('');
        static num: number = 0;
        constructor() {
            this.id = Road.num;
            this.top = -(Road.num) * this.heigth;
            this.node = $(`<div id="${this.id}" class="road" style="top:${this.top}px;"></div>`);
            mask.append(this.node);
            Road.num++;
        }
        move() {
            this.top += speed;
            this.node.css({
                top: this.top + "px"
            });
            //循环路面
            if (this.top >= this.heigth) {
                this.top -= Road.num * this.heigth;
            }
        }
    }
    export class RandBox {

        left: number = 0;
        top: number = -100;
        heigth: number = 80;
         number = 80;
        node: JQuery<HTMLElement> = $('');
        type: Direction = Direction.left;
        id: string = "p" + new Date().getTime();
        track: Track = Track.one;
        constructor(p: number = 0) {
            this.top = p;
        }
        createrb(type: Direction) {
            this.type = type;
            let r = 0;
            if (type == Direction.left) {
                r = MathHelp.RandRange(0, 1);
            } else {
                r = MathHelp.RandRange(2, 3);
            }
            this.track = r;
            //计算所属赛道
            this.left = 70 + 126 * r + (126 - this.width) / 2;
            this.node = $(`<div id="${this.id}" class='rb'style='left:${this.left}px;top:${this.top}px;    background-image:url(img/c${MathHelp.RandRange(1, 4)}.png);'></div>`);
            mask.append(this.node);
        }
        move() {
            this.top += speed;
            this.node.css({
                top: this.top + "px"
            });
            //碰撞检测
            if (this.top >= 870 && this.top < 950) {
                if (this.track == ft1.track || this.track == ft2.track) {
                    scence.gameover();
                    return false;
                }
            }
            return true;
        }
    }

    export class scence {
        static timer: number;
        static Init() {
            //重新开始
            $(".againBtn").on("click", () => {
                scence.restart();
            });
            //创建路面
            for (let i = 0; i < 3; i++) {
                let road = new Road();
                roadList.push(road);
            }
            //最开始给一对障碍，此后是每秒一对
            scence.makeDoubleRb(450);
            //开始游戏（可以绑定到开始按钮）
            scence.start();
        }
        static start() {
            scence.loadlisten();
            //场景平移
            let move = () => {
                let status = true;
                $.each(rblist, (i, item) => {
                    if (!item.move()) {
                        status = false;
                        return false;
                    }

                });
                if (status) {
                    $.each(roadList, (i, item) => {
                        item.move();
                    });
                    requestAnimationFrameFlag = requestAnimationFrame(move);
                } else {
                    cancelAnimationFrame(requestAnimationFrameFlag);
                }
            }
            move();
            //积分及创建障碍
            scence.timer = setInterval(() => {
                score++;
                speed++;
                $(".jfb").html(score.toString());
                scence.makeDoubleRb();
                //移除超出屏幕路障
                rblist.forEach((item, i) => {

                    if (item.top > 1200) {
                        $("#" + item.id).remove();
                        rblist.splice(i, 1);
                    }
                })
            }, 1000);

        }
        static gameover() {
            clearInterval(scence.timer);
            $(".gameEnd").show();
            $(".score").html(score.toString());
            scence.removelisten();
            //小车回到原始位置
            ft1.node.animate({
                left: "235px"
            }, 50);
            ft1.track = Track.two;
            ft2.node.animate({
                left: "360px"
            }, 50);
            ft2.track = Track.three;
        }
        static restart() {
            speed = 10;
            score = 0;
            $(".rb").remove();
            rblist = [];
            $(".jfb").html(score.toString());
            $(".gameEnd").hide();
            scence.start();
        }
        //创建成对出现的障碍
        static makeDoubleRb(top?: number) {
            let RB1 = new game.RandBox(top);
            RB1.createrb(Direction.left);
            rblist.push(RB1);
            let RB2 = new game.RandBox(top);
            RB2.createrb(Direction.right);
            rblist.push(RB2);
        }
        private static loadlisten() {
            document.addEventListener('touchstart', scence.touch, false);
            document.addEventListener('touchmove', scence.touch, false);
            document.addEventListener('touchend', scence.touch, false);
        }
        private static removelisten() {
            document.removeEventListener('touchstart', scence.touch, false);
            document.removeEventListener('touchmove', scence.touch, false);
            document.removeEventListener('touchend', scence.touch, false);
        }
        private static touch(e: TouchEvent) {
            e.preventDefault();
            if (e.type == "touchstart") {
                if (e.touches.length == 1) {
                    //一指的情况
                    let x1 = e.touches[0].clientX;
                    if (x1 < 320) {
                        //左边
                        ft1.node.animate({
                            left: "112px"
                        }, 50);
                        ft1.track = Track.one;

                    } else {
                        //右边
                        ft2.node.animate({
                            left: "490px"
                        }, 50);
                        ft2.track = Track.four;
                    }
                } else if (e.touches.length == 2) {
                    //两指手指的情况
                    let x1 = e.touches[0].clientX;
                    let x2 = e.touches[1].clientX;
                    let a = x1 < 320 ? 0 : 1;
                    let b = x2 < 320 ? 0 : 1;
                    if (a + b == 0) {

                        //两指都在左边
                        ft1.node.animate({
                            left: "112px"
                        }, 50);
                        ft1.track = Track.one;

                    } else if (a + b == 1) {
                        //两指一左一右
                        ft1.node.animate({
                            left: "112px"
                        }, 50);
                        ft1.track = Track.one;
                        ft2.node.animate({
                            left: "490px"
                        }, 50);
                        ft2.track = Track.four;
                    } else if (a + b == 2) {
                        //两指都在右边
                        ft2.node.animate({
                            left: "490px"
                        }, 50);
                        ft2.track = Track.four;
                    }
                }

            } else if (e.type == "touchend") {

                if (e.touches.length == 0) {
                    //放开两指
                    ft1.node.animate({
                        left: "235px"
                    }, 50);
                    ft1.track = Track.two;
                    ft2.node.animate({
                        left: "360px"
                    }, 50);
                    ft2.track = Track.three
                } else if (e.touches.length == 1) {
                    //放开一指
                    let x1 = e.touches[0].clientX;
                    if (x1 > 320) {
                        //放开的左边
                        ft1.node.animate({
                            left: "235px"
                        }, 50);
                        ft1.track = Track.two;
                    } else {
                        //放开的右边
                        ft2.node.animate({
                            left: "360px"
                        }, 50);
                        ft2.track = Track.three
                    }
                }
            }
        }
    }

}

game.scence.Init();

html代码

<!DOCTYPE html>
<html>

    <head>
        <meta charset="utf-8" />
        <title></title>
        <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
        <script src="http://lib.sinaapp.com/js/jquery/1.9.1/jquery-1.9.1.min.js"></script>
        <script type="text/javascript">
            var isios = false;
            ! function(userAgent) {
                var screen_w = parseInt(window.screen.width),
                    scale = screen_w / 640;
                console.log(scale);
                if(/Android (d+.d+)/.test(userAgent)) {
                    var version = parseFloat(RegExp.$1);
                    document.write(version > 2.3 ? '<meta name="viewport" content="width=640, initial-scale = ' + scale + ',user-scalable=1, minimum-scale = ' + scale + ', maximum-scale = ' + scale + ', target-densitydpi=device-dpi">' : '<meta name="viewport" content="width=640, target-densitydpi=device-dpi">');
                } else {
                    isios = true;
                    document.write('<meta name="viewport" content="width=640, initial-scale = ' + scale + ' ,minimum-scale = ' + scale + ', maximum-scale = ' + scale + ', user-scalable=no, target-densitydpi=device-dpi">');
                }
            }(navigator.userAgent);
        </script>
        <style>
            html,
            body {
                margin: 0;
                padding: 0;
                height: 100%;
                width: 100%;
                overflow: hidden;
            }
            
            .game {
                height: 100%;
                width: 100%;
                background-size: 100% auto;
                position: relative;
                left: 0;
                top: 0;
            }
            .road{
                height: 100%;
                width: 100%;
                background: url(img/road.jpg) no-repeat;
                background-size: 100% 100%;
                position: absolute;
                left: 0;
                top: 0;
                z-index: 10;
                
            }
            .rb {
                height: 80px;
                width: 80px;
                position: absolute;
                left: 70px;
                top: 70px;
                background-position: left top;
                background-size: 100% 100%;
                /*    animation: move 5s linear;*/
                z-index: 11;
            }
            
            .ft {
                height: 139px;
                width: 63px;
                /*border-radius: 25px;*/
                background-image: url(img/tyn.png);
                background-position: left top;
                background-size: 100% 100%;
                position: absolute;
                bottom: 50px;
                left: 235px;
                z-index: 11;
            }
            
            #ft1 {
                /*animation: football1 1.5s linear infinite;*/
            }
            
            #ft2 {
                left: 360px;
                /*animation: football2 1.5s linear infinite;*/
            }
        
            
            @keyframes football2 {
                from {
                    transform: rotate(0deg);
                }
                to {
                    transform: rotate(360deg);
                }
            }
            
            @keyframes football1 {
                from {
                    transform: rotate(0deg);
                }
                to {
                    transform: rotate(-360deg);
                }
            }
            
            @keyframes move {
                from {
                    top: 0px;
                }
                to {
                    top: 1300px;
                }
            }
            
            .gameEnd {
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                overflow: hidden;
                background-color: rgba(0, 0, 0, .8);
                z-index: 999;
                display: none;
            }
            
            .getScore {
                width: 492px;
                height: 760px;
                background: url(img/getScore.png) no-repeat;
                background-size: 100% auto;
                position: absolute;
                top: 0;
                right: 0;
                left: 0;
                bottom: 0;
                margin: auto;
            }
            
            
            .score {
                color: #dcc226;
                font-size: 130px;
                text-align: center;
                margin-top: 120px;
                font-weight: 900;
            }
            
            .againBtn {
                width: 309px;
                height: 87px;
                background: url(img/bg.png) no-repeat;
                background-size: 100% 100%;
                font-size: 40px;
                color: #dcc226;
                text-align: center;
                border: none;
                font-weight: 900;
                position: absolute;
                left: 50%;
                margin-left: -154.5px;
            }
            
            .jfb {
                position: absolute;
                top: 30px;
                right: 100px;
                font-size: 45px;
                font-weight: 800;
                color: #FFF;
                text-align: center;
                line-height: 45px;
                z-index: 11;
            }
        </style>
    </head>

    <body>
        <div class="game">
        
            <div id="ft1" class="ft"></div>
            <div id="ft2" class="ft"></div>
            <div class="jfb">0</div>
        </div>
        <div class="gameEnd">

            <div class="getScore">

                <p class="score">10</p>
                <button class="againBtn">再来一局</button>

            </div>

        </div>
        <script src="js/game.js" type="text/javascript" charset="utf-8"></script>
    </body>

</html>