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 //1.创建障碍
2 //2.移动障碍
3 //3.小球控制
4 //4.碰撞检测
5 module game {
6
7 interface FootBall {
8 node: JQuery<HTMLElement>;
9 track: Track;
10 }
11 enum Direction {
12 left, right
13 }
14 enum Track {
15 one, two, three, four
16 }
17 let mask: JQuery<HTMLElement> = $(".game");
18 let speed: number = 10;
19 let score: number = 0;
20 let rblist: Array<RandBox> = [];
21 let roadList: Array<Road> = [];
22 let ft1: FootBall = { node: $("#ft1"), track: Track.two };
23 let ft2: FootBall = { node: $("#ft2"), track: Track.three };
24 //h5的专门适应绘制动画的属性
25 window.requestAnimationFrame =
26 window.requestAnimationFrame ||
27 window.webkitRequestAnimationFrame ||
28 (function () {
29 return function (callback: Function, element: { __lastTime: number }) {
30 var lastTime = element.__lastTime;
31 if (lastTime === undefined) {
32 lastTime = 0;
33 }
34 var currTime = Date.now();
35 var timeToCall = Math.max(1, 33 - (currTime - lastTime));
36 window.setTimeout(callback, timeToCall);
37 element.__lastTime = currTime + timeToCall;
38 };
39 })();
40 window.cancelAnimationFrame = window.cancelAnimationFrame || window.webkitCancelAnimationFrame;
41 let requestAnimationFrameFlag = 0;
42 class MathHelp {
43 /**
44 * 返回范围内随机数[min,max]
45 * @param min 最小值
46 * @param max 最大值
47 */
48 static RandRange(min: number, max: number): number {
49 return Math.floor(Math.random() * (max - min + 1) + min);
50 }
51 }
52 export class Road {
53 top: number = 0;
54 id: number = 0;
55 heigth: number = document.documentElement.clientHeight;
56 node: JQuery<HTMLElement> = $(‘‘);
57 static num: number = 0;
58 constructor() {
59 this.id = Road.num;
60 this.top = -(Road.num) * this.heigth;
61 this.node = $(`<div id="${this.id}" class="road" style="top:${this.top}px;"></div>`);
62 mask.append(this.node);
63 Road.num++;
64 }
65 move() {
66 this.top += speed;
67 this.node.css({
68 top: this.top + "px"
69 });
70 //循环路面
71 if (this.top >= this.heigth) {
72 this.top -= Road.num * this.heigth;
73 }
74 }
75 }
76 export class RandBox {
77
78 left: number = 0;
79 top: number = -100;
80 heigth: number = 80;
81 width: number = 80;
82 node: JQuery<HTMLElement> = $(‘‘);
83 type: Direction = Direction.left;
84 id: string = "p" + new Date().getTime();
85 track: Track = Track.one;
86 constructor(p: number = 0) {
87 this.top = p;
88 }
89 createrb(type: Direction) {
90 this.type = type;
91 let r = 0;
92 if (type == Direction.left) {
93 r = MathHelp.RandRange(0, 1);
94 } else {
95 r = MathHelp.RandRange(2, 3);
96 }
97 this.track = r;
98 //计算所属赛道
99 this.left = 70 + 126 * r + (126 - this.width) / 2;
100 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>`);
101 mask.append(this.node);
102 }
103 move() {
104 this.top += speed;
105 this.node.css({
106 top: this.top + "px"
107 });
108 //碰撞检测
109 if (this.top >= 870 && this.top < 950) {
110 if (this.track == ft1.track || this.track == ft2.track) {
111 scence.gameover();
112 return false;
113 }
114 }
115 return true;
116 }
117 }
118
119 export class scence {
120 static timer: number;
121 static Init() {
122 //重新开始
123 $(".againBtn").on("click", () => {
124 scence.restart();
125 });
126 //创建路面
127 for (let i = 0; i < 3; i++) {
128 let road = new Road();
129 roadList.push(road);
130 }
131 //最开始给一对障碍，此后是每秒一对
132 scence.makeDoubleRb(450);
133 //开始游戏（可以绑定到开始按钮）
134 scence.start();
135 }
136 static start() {
137 scence.loadlisten();
138 //场景平移
139 let move = () => {
140 let status = true;
141 $.each(rblist, (i, item) => {
142 if (!item.move()) {
143 status = false;
144 return false;
145 }
146
147 });
148 if (status) {
149 $.each(roadList, (i, item) => {
150 item.move();
151 });
152 requestAnimationFrameFlag = requestAnimationFrame(move);
153 } else {
154 cancelAnimationFrame(requestAnimationFrameFlag);
155 }
156 }
157 move();
158 //积分及创建障碍
159 scence.timer = setInterval(() => {
160 score++;
161 speed++;
162 $(".jfb").html(score.toString());
163 scence.makeDoubleRb();
164 //移除超出屏幕路障
165 rblist.forEach((item, i) => {
166
167 if (item.top > 1200) {
168 $("#" + item.id).remove();
169 rblist.splice(i, 1);
170 }
171 })
172 }, 1000);
173
174 }
175 static gameover() {
176 clearInterval(scence.timer);
177 $(".gameEnd").show();
178 $(".score").html(score.toString());
179 scence.removelisten();
180 //小车回到原始位置
181 ft1.node.animate({
182 left: "235px"
183 }, 50);
184 ft1.track = Track.two;
185 ft2.node.animate({
186 left: "360px"
187 }, 50);
188 ft2.track = Track.three;
189 }
190 static restart() {
191 speed = 10;
192 score = 0;
193 $(".rb").remove();
194 rblist = [];
195 $(".jfb").html(score.toString());
196 $(".gameEnd").hide();
197 scence.start();
198 }
199 //创建成对出现的障碍
200 static makeDoubleRb(top?: number) {
201 let RB1 = new game.RandBox(top);
202 RB1.createrb(Direction.left);
203 rblist.push(RB1);
204 let RB2 = new game.RandBox(top);
205 RB2.createrb(Direction.right);
206 rblist.push(RB2);
207 }
208 private static loadlisten() {
209 document.addEventListener(‘touchstart‘, scence.touch, false);
210 document.addEventListener(‘touchmove‘, scence.touch, false);
211 document.addEventListener(‘touchend‘, scence.touch, false);
212 }
213 private static removelisten() {
214 document.removeEventListener(‘touchstart‘, scence.touch, false);
215 document.removeEventListener(‘touchmove‘, scence.touch, false);
216 document.removeEventListener(‘touchend‘, scence.touch, false);
217 }
218 private static touch(e: TouchEvent) {
219 e.preventDefault();
220 if (e.type == "touchstart") {
221 if (e.touches.length == 1) {
222 //一指的情况
223 let x1 = e.touches[0].clientX;
224 if (x1 < 320) {
225 //左边
226 ft1.node.animate({
227 left: "112px"
228 }, 50);
229 ft1.track = Track.one;
230
231 } else {
232 //右边
233 ft2.node.animate({
234 left: "490px"
235 }, 50);
236 ft2.track = Track.four;
237 }
238 } else if (e.touches.length == 2) {
239 //两指手指的情况
240 let x1 = e.touches[0].clientX;
241 let x2 = e.touches[1].clientX;
242 let a = x1 < 320 ? 0 : 1;
243 let b = x2 < 320 ? 0 : 1;
244 if (a + b == 0) {
245
246 //两指都在左边
247 ft1.node.animate({
248 left: "112px"
249 }, 50);
250 ft1.track = Track.one;
251
252 } else if (a + b == 1) {
253 //两指一左一右
254 ft1.node.animate({
255 left: "112px"
256 }, 50);
257 ft1.track = Track.one;
258 ft2.node.animate({
259 left: "490px"
260 }, 50);
261 ft2.track = Track.four;
262 } else if (a + b == 2) {
263 //两指都在右边
264 ft2.node.animate({
265 left: "490px"
266 }, 50);
267 ft2.track = Track.four;
268 }
269 }
270
271 } else if (e.type == "touchend") {
272
273 if (e.touches.length == 0) {
274 //放开两指
275 ft1.node.animate({
276 left: "235px"
277 }, 50);
278 ft1.track = Track.two;
279 ft2.node.animate({
280 left: "360px"
281 }, 50);
282 ft2.track = Track.three
283 } else if (e.touches.length == 1) {
284 //放开一指
285 let x1 = e.touches[0].clientX;
286 if (x1 > 320) {
287 //放开的左边
288 ft1.node.animate({
289 left: "235px"
290 }, 50);
291 ft1.track = Track.two;
292 } else {
293 //放开的右边
294 ft2.node.animate({
295 left: "360px"
296 }, 50);
297 ft2.track = Track.three
298 }
299 }
300 }
301 }
302 }
303
304 }
305
306 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>
原文地址：https://www.cnblogs.com/xiaotiejiang/p/9629482.html
时间： 2024-10-07 04:22:24