Complete example of a snake web game implemented by native js _ javascript skills

Source: Internet
Author: User
This article mainly introduces the complete example of a snake web edition game implemented by native js, which allows you to choose game difficulty independently and implement the function of a snake game, involving javascript Keyboard Events and page element operation skills, for more information, see the examples in this article to describe the snake web game implemented by native js. Share it with you for your reference. The specific implementation method is as follows:

 A browser game written in native jsScript Star = {init: function () {var bigDiv = this. appendEle (this. addStyle (this. creatEle (), {w: '000000', h: '000000', p: 'absolute ', t: 10, l: 900 })); for (var I = 0; I <600/30; I ++) {Star. data. arrayAll [I] = []; for (var j = 0; j <900/30; j ++) {p = this. addStyle (this. creatEle (), {w :(! + [1,]? 30: 28), h :(! + [1,]? 30: 28), f: 'left', border: '1px solid #666 '}); p. setAttribute ('number', I * 30 + j) this. appendEle (p, bigDiv) Star. data. arrayAll [I] [j] = p ;}} bigDiv = this. appendEle (this. addStyle (this. creatEle (), {w: '000000', h: '000000', p: 'absolute ', t: 10, l: 900}); this. pushEleInSelect (Star. data. arrayAll [9] [15], Star. data. arrayAll [9] [14], Star. data. arrayAll [9] [13]) this. keyBoard. apply (this, arguments); this. appearPoint (); this. leftGo () ;}, ap PearPoint: function () {var arrayIn = []; var number; for (var I = 0; I <600; I ++) {if (! This. hasInArray (Star. data. arrayAll [parseInt (I/30)] [I % 30]. getAttribute ('number'), Star. data. arraySelect) {arrayIn. push (Star. data. arrayAll [I])} Star. data. foodNumber = number = parseInt (Math. random () * arrayIn. length); this. giveColor (number)}, giveColor: function (number) {var p = Star. data. arrayAll [parseInt (number/30)] [number % 30]; Star. timeInterval. timeB = setInterval (function () {if (p. className = 'shanghai '){ P. className = ''p. style. backgroundColor = '# fff'} else {p. className = 'shanshanghai'; p. style. backgroundColor = '# f00' }}, 500)}, disappearColor: function () {clearInterval (Star. timeInterval. timeB); Star. data. arrayAll [parseInt (Star. data. foodNumber/30)] [Star. data. foodNumber % 30]. style. backgroundColor = '# f00';}, hasInArray: function (number, array) {for (var I in array) {if (array [I] instanceof Array) {if (this. hasInArray (Number, array [I]) {return true ;}} if (array [I]. getAttribute & array [I]. getAttribute ('number') = number) return true;} return false;}, keyBoard: function () {var self = this; document. onkeydown = function (e) {e = e? E: window. event; switch (e. keyCode) {case 37: if (Star. keycode = 37 | Star. keycode = 39) {return;}; self. leftGo (); break; case 38: if (Star. keycode = 38 | Star. keycode = 40) {return ;}; self. upGo (); break; case 39: if (Star. keycode = 37 | Star. keycode = 39) {return;}; self. rightGo (); break; case 40: if (Star. keycode = 38 | Star. keycode = 40) {return ;}; self. downGo (); break ;}}, leftGo: function () {var p, number, self = this; Star. keycode = 37; clearInterval (Star. timeInterval. timeA) Star. timeInterval. timeA = setInterval (function () {number = Star. data. arraySelect [0]. getAttribute ('number'); if (number % 30 <= 0 | self. hasInArray (number-1, Star. data. arraySelect) {self. guanle ();} else {if (Star. data. foodNumber = number-1) {self. pushEleInSelect (Star. data. arrayAll [parseInt (Star. data. foodNumber/30)] [Star. data. foodNumber % 30]); self. disappearColor (); self. appearPoint ();} else {p = Star. data. arraySelect. pop (); p. style. background = '# fff'; self. pushEleInSelect (Star. data. arrayAll [parseInt (number/30)] [number % 30-1]) ;}}, Star. timeInterval. speed)}, upGo: function () {var p, number, self = this; Star. keycode = 38; clearInterval (Star. timeInterval. timeA) Star. timeInterval. timeA = setInterval (function () {number = parseInt (Star. data. arraySelect [0]. getAttribute ('number'); if (parseInt (number/30) <= 0 | self. hasInArray (number-30, Star. data. arraySelect) {self. guanle ();} else {if (Star. data. foodNumber = number-30) {self. pushEleInSelect (Star. data. arrayAll [parseInt (Star. data. foodNumber/30)] [Star. data. foodNumber % 30]); self. disappearColor (); self. appearPoint ();} else {p = Star. data. arraySelect. pop (); p. style. background = '# fff'; self. pushEleInSelect (Star. data. arrayAll [parseInt (number/30)-1] [number % 30]) ;}}, Star. timeInterval. speed)}, rightGo: function () {var p, number, self = this; Star. keycode = 39; clearInterval (Star. timeInterval. timeA) Star. timeInterval. timeA = setInterval (function () {number = parseInt (Star. data. arraySelect [0]. getAttribute ('number'); if (parseInt (number % 30)> = 29 | self. hasInArray (number + 1, Star. data. arraySelect) {self. guanle ();} else {if (Star. data. foodNumber = number + 1) {self. pushEleInSelect (Star. data. arrayAll [parseInt (Star. data. foodNumber/30)] [Star. data. foodNumber % 30]); self. disappearColor (); self. appearPoint ();} else {p = Star. data. arraySelect. pop (); p. style. background = '# fff'; self. pushEleInSelect (Star. data. arrayAll [parseInt (number/30)] [number % 30 + 1]) ;}}, Star. timeInterval. speed)}, downGo: function () {var p, number, self = this; Star. keycode = 40; clearInterval (Star. timeInterval. timeA) Star. timeInterval. timeA = setInterval (function () {number = parseInt (Star. data. arraySelect [0]. getAttribute ('number'); if (parseInt (number/30)> = 19 | self. hasInArray (number + 30, Star. data. arraySelect) {self. guanle ();} else {if (Star. data. foodNumber = number + 30) {self. pushEleInSelect (Star. data. arrayAll [parseInt (Star. data. foodNumber/30)] [Star. data. foodNumber % 30]); self. disappearColor (); self. appearPoint ();} else {p = Star. data. arraySelect. pop (); p. style. background = '# fff'; self. pushEleInSelect (Star. data. arrayAll [parseInt (number/30) + 1] [number % 30]) ;}}, Star. timeInterval. speed)}, guanle: function () {alert ('hit the wall, total score: '+ (Star. data. arraySelect. length-3) * parseInt (1000/Star. timeInterval. speed); location. reload () ;}, creatEle: function (tag) {var tagName = tag | 'div 'return document. createElement (tagName)}, appendEle: function (ele, father) {var father = father | document. body | document.doc umentElementfather. appendChild (ele) return ele;}, addStyle: function (ele, css) {for (var I in css) {switch (I) {case 'B': ele. style. background = css [I]; break; case 'l': ele. style. left = css [I] + 'px '; break; case 'r': ele. style. right = css [I] + 'px '; break; case 'T': ele. style. top = css [I] + 'px '; break; case 'D': ele. style. down = css [I] + 'px '; break; case 'p': ele. style. position = css [I]; break; case 'W': ele. style. width = css [I] + 'px '; break; case 'H': ele. style. height = css [I] + 'px '; break; case 'F': ele.style.css Float = css [I]; ele. style. styleFloat = css [I]; break; default: ele. style [I] = css [I]; break;} return ele;}, pushEleInSelect: function () {for (var I = 0; I

I hope this article will help you design javascript programs.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.