jquery实现一个指挥火车运输到指定仓库游戏代码-html代码-BFW代码库

代码语言：html
所属分类：游戏
代码描述：jquery实现一个指挥火车运输到指定仓库游戏代码，通过点击路口指示牌来指挥火车运行方向到达目的地。
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">

  <link href='https://fonts.googleapis.com/css?family=Oswald:400,300' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Chewy' rel='stylesheet' type='text/css'>
  
  
  
<style>
html, body {
  height: 100%;
}

body {
  position: relative;
  margin: 0;
}

select {
  border: none;
  outline: none;
}

button {
  outline: none;
  border: none;
  cursor: pointer;
}

body, button {
  font-family: "Oswald", sans-serif;
  font-weight: 300;
}

/* LANDSCAPE */
.sky, .land {
  position: relative;
}

.sky {
  background-color: #D9F1FB;
  height: 14em;
}

.land {
  background-color: #EAE2D7;
  min-height: 30em;
}

.sun {
  position: relative;
  left: 24em;
  background: gold;
  height: 0;
  width: 0;
  padding: 2em;
  border-radius: 50%;
  border: 0.8em solid goldenrod;
}

/* CLOUDS */
.clouds .cloud {
  position: absolute;
}
.clouds .cloud .base {
  position: absolute;
  top: 2em;
  left: -1.5em;
  height: 1.6em;
  width: 8em;
  background-color: ghostwhite;
  border-radius: 1em;
  box-shadow: inset -2.2em 0 0 beige;
}
.clouds .cloud .big_bubble {
  border: 2.5em solid beige;
}
.clouds .cloud .small_bubble {
  position: absolute;
  top: 1em;
  left: -0.1em;
  border: 1.5em solid ghostwhite;
}
.clouds .cloud .small_bubble, .clouds .cloud .big_bubble {
  height: 0;
  width: 0;
  border-radius: 50%;
  transform: rotate(45deg);
  border-bottom-color: transparent;
  border-right-color: transparent;
}
.clouds .cloud:nth-child(1) {
  top: 1.5em;
  left: 13em;
  transform: scale(1.2);
}
.clouds .cloud:nth-child(2) {
  top: 1em;
  left: 33em;
  transform: scale(1.1, 0.9);
}
.clouds .cloud:nth-child(3) {
  top: 0.6em;
  left: 48em;
}
.clouds .cloud:nth-child(4) {
  top: 1em;
  left: 62em;
  transform: scale(1.1);
}
.clouds .cloud:nth-child(5) {
  top: 2em;
  left: 78em;
  transform: scale(1.1, 0.9);
}
.clouds .cloud:nth-child(6) {
  top: 1em;
  left: 88em;
  transform: scale(0.8);
}
.clouds .cloud:nth-child(7) {
  top: 1em;
  left: 1em;
  transform: scale(0.8);
}
.clouds .cloud:nth-child(9) {
  top: 1em;
  left: 1em;
  transform: scale(0.7);
}

/* MOUNTAINS */
.mountains {
  overflow: hidden;
  position: relative;
  height: 10em;
}
.mountains .mountain {
  position: absolute;
  bottom: -4em;
  height: 10em;
  width: 10em;
  transform: rotate(45deg);
  border-top-left-radius: 14%;
  border-top-right-radius: 80% 20%;
  border-bottom-left-radius: 20% 80%;
  background: linear-gradient(45deg, #737373 50%, transparent 50%) no-repeat, linear-gradient(-45deg, transparent 50%, #737373 50%) 0 90px no-repeat, linear-gradient(135deg, grey 57.5%, transparent 57.5%) no-repeat;
}
.mountains .mountain:nth-child(1), .mountains .mountain:nth-child(5), .mountains .mountain:nth-child(7), .mountains .mountain:nth-child(10), .mountains .mountain:nth-child(11) {
  transform: rotate(45deg) scale(1.2);
}
.mountains .mountain:nth-child(3), .mountains .mountain:nth-child(7), .mountains .mountain:nth-child(9) {
  background: linear-gradient(45deg, #8a8b18 50%, transparent 50%) no-repeat, linear-gradient(-45deg, transparent 50%, #8a8b18 50%) 0 90px no-repeat, linear-gradient(135deg, #a0a11c 57.5%, transparent 57.5%) no-repeat;
}
.mountains .mountain:nth-child(2) {
  left: 16em;
}
.mountains .mountain:nth-child(3) {
  left: 8em;
}
.mountains .mountain:nth-child(4) {
  left: 45em;
}
.mountains .mountain:nth-child(5) {
  left: 35em;
}
.mountains .mountain:nth-child(6) {
  left: 60em;
}
.mountains .mountain:nth-child(7) {
  left: 55em;
}
.mountains .mountain:nth-child(8) {
  left: 73em;
}
.mountains .mountain:nth-child(9) {
  left: 77em;
}
.mountains .mountain:nth-child(10) {
  left: 87em;
}
.mountains .mountain:nth-child(11) {
  left: 93em;
}

/* TREES */
.tree {
  background: #35740a;
  box-shadow: inset 1em 0 0 #408B0C;
  border-radius: 1em;
  height: 5em;
  width: 2em;
  transition: transform 1s;
}
.tree:nth-child(4n) {
  background: #da7b33;
  box-shadow: inset 1em 0 0 #de8949;
}
.tree .branch {
  border: 0.2em solid #563D3D;
  width: 0.8em;
  height: 0.8em;
  transform: rotate(45deg);
  border-top: 0;
  border-left: 0;
  position: relative;
}
.tree .branch:before, .tree .branch:after {
  content: "";
  height: 0.175em;
  width: 0.175em;
  background-color: #563D3D;
  border-radius: 50%;
  position: absolute;
}
.tree .branch:after {
  right: -0.178125em;
  top: -0.11875em;
}
.tree .branch:before {
  left: -0.11875em;
  bottom: -0.178125em;
}
.tree .branch:nth-child(1) {
  position: absolute;
  top: 35%;
  left: 25%;
}
.tree .branch:nth-child(2) {
  position: absolute;
  top: 60%;
  left: 25%;
}
.tree .shadow {
  height: 0.5em;
  width: 1.5em;
  background: rgba(198, 198, 198, 0.5);
  border-radius: 50%;
  position: absolute;
  bottom: -2.2em;
  left: 10%;
  z-index: -1;
  transition: width 1s;
}
.tree .shadow.blown {
  width: 2.5em;
}
.tree .trunk {
  background-color: #563D3D;
  height: 5.5em;
  width: 0.25em;
  border-radius: 0.5em;
  position: absolute;
  bottom: -2em;
  left: 42%;
}
.tree.blown {
  transition: transform 1s;
  transform: scale(0.7) skewX(-5deg) !important;
}
.tree.blown .shadow {
  width: 2.5em;
}

.trees {
  position: relative;
  z-index: 0;
}
.trees .tree {
  position: absolute;
  top: -3em;
  transform: scale(0.7);
}
.trees .tree:nth-child(1) {
  left: 18em;
  top: -3.2em;
}
.trees .tree:nth-child(2) {
  left: 33em;
  top: -3.5em;
}
.trees .tree:nth-child(3) {
  left: 24em;
}
.trees .tree:nth-child(4) {
  left: 45em;
}
.trees .tree:nth-child(5) {
  left: 35em;
}
.trees .tree:nth-child(6) {
  left: 66em;
}
.trees .tree:nth-child(7) {
  left: 55em;
  top: -3.6em;
}
.trees .tree:nth-child(8) {
  left: 73em;
}
.trees .tree:nth-child(9) {
  left: 75em;
  top: -3.1em;
}
.trees .tree:nth-child(10) {
  left: 83em;
  top: -2.8em;
}
.trees .tree:nth-child(11) {
  left: 89em;
}

/* INTERFACE */
button {
  background: yellow;
  font-size: 14px;
  border-radius: 1px;
  padding: 2px 8px 3px 8px;
}
button:active {
  background-color: yellowgreen;
}

.board .tree {
  position: absolute;
  transform: scale(0.7);
}

.blink {
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
  to {
    background-color: yellowgreen;
  }
}
.inkdot {
  animation-name: inkdot;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes inkdot {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}
.info {
  position: absolute;
  bottom: 0;
}

.start, .change_map, .difficulty {
  position: absolute;
  left: -4em;
  z-index: 10;
}

.start {
  top: 0;
}

.change_map {
  top: 2.2em;
}

.difficulty {
  top: 4.4em;
  font-size: 14px;
  background-color: silver;
}

.level {
  display: inline-block;
  padding: 0.125em;
}

.score {
  margin-right: 0.5em;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: black;
  opacity: 0.6;
  filter: alpha(opacity=60);
  z-index: 100;
}

.overlay-box {
  position: fixed;
  top: 10%;
  left: 50%;
  margin-left: -13em;
  z-index: 101;
}

.instructions-box {
  background: #c7baa8;
  border: 9px solid;
  width: 25em;
  height: 20em;
  border-radius: 1px;
  border-color: #f1c40f;
  border-bottom-color: #c29d0b;
  border-right-color: #dab10d;
  color: #66595c;
}

.js-close-overlay {
  cursor: pointer;
  position: absolute;
  left: 92%;
  top: 0%;
  color: #66595c;
}

.instructions {
  border: 1px solid #EAE2D7;
  padding: 1.8em 1em 1em 1em;
  height: 100%;
  box-sizing: border-box;
  font-family: sans-serif;
  line-height: 22px;
}
.instructions h2 {
  font-family: Oswald, sans-serif;
}

/* BOARD */
.board {
  display: inline-block;
  /* instead of overflow */
  padding: 3em 3em 1em 5em;
}
.board .cell {
  position: relative;
  float: left;
  /* for testing */
}

/* TREE / NODE */
.board .cell .node, .board .cell .non {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  z-index: 1;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  cursor: pointer;
  font-size: 12px;
  height: 2.2em;
  width: 2.2em;
  line-height: 2.2em;
  text-align: center;
  background-color: skyblue;
}
.board .cell .node.extension, .board .cell .non.extension {
  background-color: palevioletred;
}
.board .cell .node.dead_end, .board .cell .non.dead_end {
  background-color: #424c56;
  display: none;
}
.board .cell .node.leaf, .board .cell .non.leaf {
  background-color: forestgreen;
  display: none;
}
.board .cell .node.root, .board .cell .non.root {
  background-color: yellowgreen;
}
.board .cell .node.blacknwhite, .board .cell .non.blacknwhite {
  background: #444;
  color: #f9f9f9;
}
.board .cell .edge {
  position: absolute;
  opacity: 0.4;
}
.board .cell .edge.selected {
  opacity: 1;
}
.board .cell.east .edge.east, .board .cell.east .edge.west, .board .cell.west .edge.east, .board .cell.west .edge.west {
  background: linear-gradient(0deg, transparent 22%, grey 22%, grey 33%, transparent 33%, transparent 67%, grey 67%, grey 78%, transparent 78%), repeating-linear-gradient(90deg, transparent, transparent 0.25em, #7B5026 0.25em, #7B5026 0.5em);
  top: 0.35em;
  right: 0;
  height: 0.9em;
  width: 5.6em;
}
.board .cell.east .edge.east.shorter, .board .cell.east .edge.west.shorter, .board .cell.west .edge.east.shorter, .board .cell.west .edge.west.shorter {
  right: 4.6em;
  width: 1em;
}
.board .cell.south .edge.south, .board .cell.south .edge.north, .board .cell.north .edge.south, .board .cell.north .edge.north {
  background: linear-gradient(90deg, transparent 22%, grey 22%, grey 33%, transparent 33%, transparent 67%, grey 67%, grey 78%, transparent 78%), repeating-linear-gradient(0deg, transparent, transparent 0.25em, #7B5026 0.25em, #7B5026 0.5em);
  left: 0.35em;
  bottom: 0;
  width: 0.9em;
  height: 5.6em;
}
.board .cell.joint .node {
  height: 1.5em;
  width: 1.5em;
  top: 0.7em;
  left: 0.7em;
  background: radial-gradient(transparent 33%, grey 36%, grey 39%, transparent 43%, transparent 57.5%, grey 61.5%, grey 63.5%, transparent 68%);
  background-size: 200% 200%;
  border-radius: 0;
  cursor: auto;
  display: block;
}
.board .cell.east_to_north .node, .board .cell.north_to_east .node {
  background-position: 0 100%;
  top: 0;
  left: 0.7em;
}
.board .cell.west_to_north .node, .board .cell.north_to_west .node {
  background-position: 100% 100%;
  top: 0;
  left: 0;
}
.board .cell.west_to_south .node, .board .cell.south_to_west .node {
  background-position: 100% 0;
  top: 0.7em;
  left: 0;
}
.board .cell.south_to_north .node, .board .cell.north_to_south .node {
  display: none;
}
.board .cell.south_to_north .south.edge, .board .cell.north_to_south .south.edge {
  height: 100%;
}
.board .cell.east_to_west .node, .board .cell.west_to_east .node {
  display: none;
}
.board .cell.east_to_west .east.edge, .board .cell.west_to_east .east.edge {
  width: 100%;
}

/* PLANKS */
.plank {
  height: 0.25em;
  width: 0.875em;
  background-color: #7B5026;
  position: absolute;
}
.plank:nth-child(1) {
  transform: rotate(45deg);
  left: 0.6875em;
  top: 0.9375em;
}
.plank:nth-child(2) {
  transform: rotate(22.5deg);
  left: 0.4375em;
  top: 1.3125em;
}
.plank:nth-child(3) {
  transform: rotate(67.5deg);
  left: 1.0625em;
  top: 0.6875em;
}

.west_to_south .plank:nth-child(1), .south_to_west .plank:nth-child(1) {
  top: 1em;
  left: 0.0625em;
  transform: rotate(-45deg);
}
.west_to_south .plank:nth-child(2), .south_to_west .plank:nth-child(2) {
  top: 1.3125em;
  left: 0.3125em;
  transform: rotate(-22.5deg);
}
.west_to_south .plank:nth-child(3), .south_to_west .plank:nth-child(3) {
  top: 0.75em;
  left: -0.25em;
  transform: rotate(-67.5deg);
}

.west_to_north .plank:nth-child(1), .north_to_west .plank:nth-child(1) {
  transform: rotate(45deg);
  top: 0.375em;
  left: 0.1875em;
}
.west_to_north .plank:nth-child(2), .north_to_west .plank:nth-child(2) {
  transform: rotate(22.5deg);
  top: -0.0625em;
  left: 0.375em;
}
.west_to_north .plank:nth-child(3), .north_to_west .plank:nth-child(3) {
  transform: rotate(67.5deg);
  top: 0.625em;
  left: -0.1875em;
}

.east_to_north .plank:nth-child(1), .north_to_east .plank:nth-child(1) {
  transform: rotate(-45deg);
  left: 0.625em;
  top: 0.4375em;
}
.east_to_north .plank:nth-child(2), .north_to_east .plank:nth-child(2) {
  transform: rotate(-22.5deg);
  left: 0.4375em;
  top: 0;
}
.east_to_north .plank:nth-child(3), .north_to_east .plank:nth-child(3) {
  transform: rotate(-67.5deg);
  left: 1.0625em;
  top: 0.6875em;
}

/* HOUSE */
.house.white .roof {
  background: #f9a745;
}
.house.white .side {
  background: #d28a48;
}
.house.white .front {
  background: #f7f3dd;
}
.house.white .front:before {
  border-bottom: 1.625em solid #f7f3dd;
}

.house.red .roof {
  background: #aba195;
}
.house.red .side {
  background: #b3322a;
}
.house.red .front {
  background: #d45149;
}
.house.red .front:before {
  border-bottom: 1.625em solid #d45149;
}

.house {
  position: relative;
  width: 4.8em;
}
.house .front {
  width: 2.25em;
  height: 2.25em;
  background-color: #ddaf3e;
  position: relative;
  float: left;
}
.house .front:before {
  content: "";
  position: absolute;
  height: 0;
  width: 0;
  top: -2.75em;
  border: 1.125em solid transparent;
  border-bottom: 1.625em solid #ddaf3e;
}
.house .side {
  height: 2.25em;
  width: 2.5em;
  background-color: #99751b;
  float: left;
  padding: 0.625em;
  box-sizing: border-box;
  text-align: center;
  color: antiquewhite;
  text-shadow: 0 0 whitesmoke;
  line-height: 1.125em;
}
.house .roof {
  height: 1.625em;
  width: 2.5em;
  transform: skewX(35deg);
  background-color: #bc8f21;
  position: absolute;
  top: -1.625em;
  right: 0.625em;
}
.house .tunnel {
  height: 1.375em;
  width: 1.5em;
  background-color: #2e2e2e;
  position: absolute;
  left: 0.375em;
  bottom: 0;
}
.house .tunnel:before {
  content: "";
  position: absolute;
  top: -0.6875em;
  left: 0;
  width: 0;
  height: 0;
  transform: rotate(45deg);
  border: 0.75em solid transparent;
  border-top-color: #2e2e2e;
  border-left-color: #2e2e2e;
  border-radius: 50%;
}
.house.west {
  top: -1em;
  left: -0.125em;
  transform: scaleX(-1);
}
.house.west .side {
  transform: scaleX(-1);
}
.house.east {
  top: -1em;
}
.house.north {
  top: -0.625em;
  left: -0.375em;
}
.house.south {
  left: 2.25em;
  top: -1em;
}

/* DEATH */
.death *, .death :after, .death :before {
  box-sizing: border-box;
}
.death .pull-left {
  float: left;
}
.death .pull-right {
  float: right;
}
.death .clearfix:after, .death .clearfix:before {
  content: "";
  display: table;
}
.death .clearfix:after {
  clear: both;
  display: block;
}

.death .head .skull:before,
.death .head .skull:after,
.death .eyes .eye:before,
.death .body:before,
.death .body:after,
.death .legs:before {
  content: "";
  position: absolute;
}

.death {
  width: 30px;
  height: 44px;
  position: absolute;
  top: -1em;
  left: -0.5em;
  animation: move 5s infinite;
}

.west .death {
  top: -1em;
  left: 0em;
}

.north .death {
  top: -1em;
  left: -0.5em;
}

.death .head {
  z-index: 1;
  width: 25px;
  height: 25px;
  background: #444;
  border-radius: 50%;
  position: relative;
}

.death .head .skull {
  left: 2px;
  bottom: 2px;
  width: 16px;
  height: 16px;
  color: #f9f9f9;
  border-radius: 50%;
  background: #f9f9f9;
  position: absolute;
  animation: skull 5s infinite;
}

.death .head .skull:before {
  top: 9px;
  width: 0;
  left: 50%;
  height: 0;
  z-index: 1;
  margin-left: -2px;
  border: 2px solid transparent;
  border-bottom: 2px solid #444;
}

.death .head .skull:after {
  top: 14px;
  left: 50%;
  width: 1px;
  height: 4px;
  margin-left: -1px;
  background: #f9f9f9;
  box-shadow: 2px 0, -2px 0, 4px 0, -4px 0, -3px -2px, -1px -2px, 1px -2px, 3px -2px;
}

.death .eyes {
  width: inherit;
  height: inherit;
  overflow: hidden;
  border-radius: 50%;
  position: relative;
}

.death .eyes .eye {
  top: 5px;
  width: 5px;
  height: 5px;
  position: absolute;
  border-radius: 50%;
  background: #f8cd22;
  border: 1px solid #444;
  border-right: 2px solid #444;
}

.death .eyes .eye:before {
  top: -1px;
  left: -1px;
  width: 5px;
  height: 3px;
  background: #f9f9f9;
  border-radius: 5px 5px 0 0;
  animation: eyes 5s infinite;
}

.death .eyes .eye.eye-left {
  left: 1px;
}

.death .eyes .eye.eye-right {
  right: 1px;
}

.death .body {
  top: -3px;
  width: 24px;
  height: 17px;
  background: #444;
  position: relative;
  border-radius: 10px 10px 2px 2px;
}

.death .body:before,
.death .body:after {
  top: 3px;
  width: 4px;
  height: 12px;
  background: #444;
}

.death .body:before {
  left: -1px;
  border-radius: 100% 0 0 2px;
  transform: rotate(10deg);
  animation: hand-left 5s infinite;
}

.death .body:after {
  right: -1px;
  border-radius: 0 100% 2px 0;
  transform: rotate(-10deg);
  animation: hand-right 5s infinite;
}

.death .legs {
  top: -3px;
  left: 50%;
  width: 21px;
  height: 10px;
  overflow: hidden;
  margin-left: -13px;
  position: relative;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.death .legs:before {
  top: 0;
  left: -7px;
  width: 60px;
  height: 10px;
  background-image: linear-gradient(-495deg, #444 4px, transparent 0), linear-gradient(-45deg, transparent 4px, #444 0);
  background-size: 4px 8px;
  background-repeat: repeat-x;
  animation: legs 5s infinite;
}

@keyframes move {
  0% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(15px);
  }
  100% {
    transform: translateX(0);
  }
}
@keyframes skull {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(2px, 1px);
  }
  75% {
    transform: translate(3px, -1px);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes eyes {
  0% {
    top: -5px;
    border-radius: 50%;
  }
  50% {
    top: -1px;
    border-radius: 5px 5px 0 0;
  }
  100% {
    top: -5px;
    border-radius: 50%;
  }
}
@keyframes legs {
  0% {
    left: -7px;
  }
  50% {
    left: -25px;
  }
  100% {
    left: -7px;
  }
}
@keyframes hand-left {
  0% {
    left: 1px;
  }
  50% {
    left: -2px;
  }
  100% {
    left: 1px;
  }
}
@keyframes hand-right {
  0% {
    right: 1px;
  }
  50% {
    right: -2px;
  }
  100% {
    right: 1px;
  }
}
/* CLOUD ANIMATIONS */
.sky .clouds .cloud {
  animation-name: drift;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}
.sky .clouds .cloud:nth-child(1) {
  animation-duration: 90s;
  animation-delay: -8s;
  z-index: 1;
}
.sky .clouds .cloud:nth-child(2) {
  animation-duration: 94s;
  animation-delay: -45s;
  z-index: 1;
}
.sky .clouds .cloud:nth-child(3) {
  animation-duration: 90s;
  animation-delay: -80s;
}
.sky .clouds .cloud:nth-child(4) {
  animation-duration: 92s;
  animation-delay: -21s;
  z-index: 1;
}
.sky .clouds .cloud:nth-child(5) {
  animation-duration: 95s;
  animation-delay: -30s;
}
.sky .clouds .cloud:nth-child(6) {
  animation-duration: 90s;
  animation-delay: -65s;
}
.sky .clouds .cloud:nth-child(7) {
  animation-duration: 98s;
  animation-delay: -4s;
}
.sky .clouds .cloud:nth-child(8) {
  animation-duration: 95s;
  animation-delay: -78s;
  z-index: 1;
}
.sky .clouds .cloud:nth-child(9) {
  animation-duration: 95s;
  animation-delay: -60s;
}

@keyframes drift {
  0% {
    left: -8em;
  }
  100% {
    left: 103em;
  }
}
/* TRAIN */
.train, .pilot, .stack, .engine, .wheels {
  box-sizing: border-box;
}

.train {
  z-index: 2;
  width: 2.5em;
  height: 2.5em;
  margin-top: 0.125em;
}
.train .destination {
  font-size: 0.75em;
  text-align: center;
  font-weight: 400;
  line-height: 1.2em;
}
.train .pilot {
  width: 60%;
  height: 60%;
  float: left;
  background: linear-gradient(45deg, #e3f3ff, #bddcee) 0 0.3em;
  border: 0.1875em solid darkseagreen;
  border-bottom-width: 0.5em;
  border-right-width: 0.4em;
  position: relative;
}
.train .pilot:before {
  content: "";
  position: absolute;
  height: 0.125em;
  width: 1.75em;
  background: #f3cb00;
  top: -0.3125em;
  left: -0.3125em;
}
.train .stack, .train .engine {
  height: 30%;
  width: 40%;
  float: right;
}
.train .stack {
  position: relative;
}
.train .stack:before {
  content: "";
  position: absolute;
  height: 0.625em;
  width: 0.625em;
  top: 0.1875em;
  left: 0.1875em;
  border: 0.125em solid transparent;
  border-top-color: darkgrey;
  border-top-width: 0.1875em;
  border-left-width: 0.1875em;
  border-right-width: 0.1875em;
  border-bottom-width: 0;
  box-sizing: border-box;
  background: linear-gradient(to right, darkseagreen 50%, transparent 50%);
  background-size: 200%;
}
.train .engine {
  background: darkseagreen;
  border-top-right-radius: 70% 50%;
  border-bottom-right-radius: 10%;
}
.train .wheels {
  position: relative;
  /* this looks weird as em */
  top: -4px;
  left: 1px;
  height: 40%;
}
.train .wheels .wheel {
  position: relative;
  border: 0.125em solid slategrey;
  height: 0.5625em;
  width: 0.5625em;
  border-radius: 50%;
  float: left;
}
.train .wheels .wheel .spoke {
  background-color: rgba(95, 70, 34, 0.49);
  position: absolute;
  top: 0;
  left: 4px;
  width: 1px;
  height: 100%;
}
.train .wheels .wheel .spoke:nth-child(1) {
  transform: rotate(0deg);
}
.train .wheels .wheel .spoke:nth-child(2) {
  transform: rotate(45deg);
}
.train .wheels .wheel .spoke:nth-child(3) {
  transform: rotate(90deg);
}
.train .wheels .wheel .spoke:nth-child(4) {
  transform: rotate(-45deg);
}

/* TRAINS ANIMATIONS */
.train {
  position: absolute;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
  animation-duration: 4s;
  transform-origin: 10px 30px;
}
.train.to_east {
  top: -16px;
  left: 6px;
}
.train.to_south {
  top: -16px;
  left: 0px;
  transform: rotate(90deg);
}
.train.to_south .destination {
  transform: rotate(270deg);
}
.train.to_west {
  top: -22px;
  left: 0px;
  left: 116px;
  transform: rotate(180deg);
}
.train.to_west .destination {
  transform: rotate(180deg);
}
.train.to_north {
  left: 6px;
  top: -22px;
  top: 94px;
  transform: rotate(270deg);
}
.train.to_north .destination {
  transform: rotate(90deg);
}

@keyframes to_east {
  100% {
    left: 99px;
  }
}
@keyframes to_south {
  100% {
    top: 77px;
  }
}
@keyframes to_west {
  100% {
    left: 23px;
  }
}
@keyframes to_north {
  100% {
    top: 1px;
  }
}
@keyframes east_to_south {
  0% {
    left: 99px;
    transform: rotate(0deg);
  }
  100% {
    left: 116px;
    transform: rotate(90deg);
  }
}
@keyframes south_to_west {
  0% {
    top: 77px;
    transform: rotate(90deg);
  }
  100% {
    top: 94px;
    transform: rotate(180deg);
  }
}
@keyframes west_to_north {
  0% {
    left: 23px;
    transform: rotate(180deg);
  }
  100% {
    left: 6px;
    transform: rotate(270deg);
  }
}
@keyframes north_to_east {
  0% {
    top: 1px;
    transform: rotate(270deg);
  }
  100% {
    top: -16px;
    transform: rotate(360deg);
  }
}
@keyframes east_to_east {
  0% {
    left: 99px;
  }
  100% {
    left: 122px;
  }
}
@keyframes south_to_south {
  0% {
    top: 77px;
  }
  100% {
    top: 100px;
  }
}
@keyframes west_to_west {
  0% {
    left: 23px;
  }
  100% {
    left: 0px;
  }
}
@keyframes north_to_north {
  0% {
    top: 1px;
  }
  100% {
    top: -22px;
  }
}
@keyframes east_to_north {
  0% {
    top: -16px;
    left: 99px;
    transform: rotate(0deg);
  }
  100% {
    top: -22px;
    left: 122px;
    transform: rotate(-90deg);
  }
}
@keyframes south_to_east {
  0% {
    left: 0px;
    top: 77px;
    transform: rotate(90deg);
  }
  100% {
    left: 6px;
    top: 100px;
    transform: rotate(0deg);
  }
}
@keyframes west_to_south {
  0% {
    top: -22px;
    left: 23px;
    transform: rotate(180deg);
  }
  100% {
    top: -16px;
    left: 0px;
    transform: rotate(90deg);
  }
}
@keyframes north_to_west {
  0% {
    left: 6px;
    top: 1px;
    transform: rotate(270deg);
  }
  100% {
    left: 0px;
    top: -22px;
    transform: rotate(180deg);
  }
}
.wheel {
  animation: spin_wheels 0.3s linear infinite;
}

@keyframes spin_wheels {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-45deg);
  }
}
/* TUTORIAL */
.pulse {
  animation: pulse 1.5s alternate ease-in infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.5);
  }
}
@keyframes flash {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0.5;
  }
}
.radiate {
  animation: flash 1s alternate infinite, pulse 2s alternate infinite;
}

.faded {
  opacity: 0.3 !important;
}

.tutorial_message {
  width: 8em;
  padding: 1em;
  position: absolute;
  top: -6.25em;
  left: -0.5em;
  background: #EAE2D7;
  text-shadow: 1px 1px #d7d7de;
  border-radius: 0.25em;
}

/* SCORE */
.chewy {
  font-family: "Chewy", cursive;
  position: absolute;
  left: 2em;
  z-index: 4;
  color: #f3cd33;
}
.chewy.red {
  color: #bf4233;
}

.puff_1 {
  animation: puff_1 6s forwards;
}

.puff_2 {
  animation: puff_2 6s forwards;
}

.puff_3 {
  animation: puff_3 6s forwards;
}

@keyframes puff_1 {
  0% {
    transform: translate(0, 0) scale(0);
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-20px, -80px) scale(2.35);
  }
}
@keyframes puff_2 {
  0% {
    transform: translate(0, 0) scale(0);
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-60px, -60px) scale(2.35);
  }
}
@keyframes puff_3 {
  0% {
    transform: translate(0, 0) scale(0);
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(40px, -80px) scale(2.35);
  }
}
.ending-overlay {
  margin-left: -10.875em;
  top: 40%;
  padding: 4em;
  padding-top: 0em;
}
.ending-overlay .headline {
  text-shadow: 2px 2px #7b8188;
  font-size: 2em;
  text-align: center;
}
.ending-overlay .headline span {
  padding: 0.1em;
}
.ending-overlay .message {
  color: #F5F7FA;
  margin-top: 0;
  min-width: 13.75em;
  text-align: center;
}
.ending-overlay .accuracy {
  color: #48CFAD;
  font-size: 0.8em;
  text-align: right;
}
.ending-overlay .close {
  color: #F5F7FA;
}
.ending-overlay .js-close-overlay {
  top: -12%;
  left: 78%;
}

.centered {
  margin: auto;
  display: block;
}

.wrapper {
  overflow: hidden;
}
</style>


</head>

<body >
  <div class='wrapper'>
  <div class='sky'>
    <div class='sun'></div>
    <div class='clouds'>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
      <div class='cloud'>
        <div class='big_bubble'></div>
        <div class='base'></div>
        <div class='small_bubble'></div>
      </div>
    </div>
    <div class='mountains'>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
      <div class='mountain'></div>
    </div>
    <div class='info'>
      <button class='js-play'>PLAY</button>
      <button class='js-instructions'>INSTRUCTIONS</button>
      <button class='js-tutorial'>TUTORIAL</button>
    </div>
  </div>
  <div class='land js-land'>
    <div class='game_info'>
      <span>Score:</span>
      <span class='score js-score'>0000</span>
      <span class='fraction'>
        <span class='right js-correct'>0</span>
        <span>/</span>
        <span class='total js-total'>0</span>
      </span>
    </div>
    <div class='trees'>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
      <div class='tree'>
        <div class='branch'></div>
        <div class='branch'></div>
        <div class='trunk'></div>
        <div class='shadow'></div>
      </div>
    </div>
  </div>
</div>

<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-3.2.1.min.js"></script>
      <script  >
// yeah yeah yeah this is written in jQuery, rip. I am re-writing this in react.
const EAST = 'east';
const SOUTH = 'south';
const NORTH = 'north';
const WEST = 'west';

function getRandomColor() {
    var letters = '0123456789ABCDEF';
    var color = '#';
    for (var i = 0; i < 6; i++ ) {
        color += letters[Math.floor(Math.random() * 16)];
    }
    return color;
}

function validDirection(direction) {
    return [EAST, WEST, SOUTH, NORTH].includes(direction);
}

function flipDirection(direction) {
    switch (direction) {
        case NORTH:
            return SOUTH;
            break;
        case SOUTH:
            return NORTH;
            break;
        case EAST:
            return WEST;
            break;
        case WEST:
            return EAST;
            break;
        default:
            return null;
    }
}

// cell is a wrapper for a jquery element, I want to add functionality to certain elements
// the only function that matters in this class is around, it is a modified prev/next
// all other functions build off around or are delegated to board
// the board class is the only class that creates new cells
// element - a jquery element
// board - what board does this cell belong to?
function Cell(element, board) {
    if(!element || !board) {
        return null;
    }

    this.element = function() {
      return element;
    };

    this.board = function() {
        return board;
    };

    this.isTaken = function() {
        return this.hasClass('js-taken');
    };

    this.markTaken = function() {
        this.addClass('js-taken');
        return this;
    };

    this.around = function (direction) {
        var width = board.width();
        var index = element.index() + 1; // remember index is dynamic

        switch (direction) {
            case NORTH:                
                return board.cell(index-width);
                break;
            case SOUTH:                                
                return board.cell(index+width);
                break;
            case EAST:
                return index % width == 0 ? null : board.cell(index+1);
                break;
            case WEST:
                return (index % width == 1) || (width == 1) ? null : board.cell(index-1);
                break;
            case undefined:
            	return [this.around(NORTH), this.around(EAST), this.around(SOUTH), this.around(WEST)];
            	break;
            default:                
                return null;                
        }
    };

    this.open = function (direction) {
        switch (direction) {
            case NORTH:
            case SOUTH:
            case EAST:
            case WEST:
                var cell = this.around(direction);
                break;
            default:
                return [].concat(this.open(NORTH), this.open(EAST), this.open(SOUTH), this.open(WEST));
        }
        
        return (cell == null) || !cell.isTaken() ? direction : [];
    };

    this.random_directions = function (num) {
        var open = this.open();

        // default
        if (num == null) {
            num = 1;
        }

        if ((num > 4) || (num > open.length) || (num <= 0)) {
            return []; // fail case
        } else if (num == open.length) {
            return open; // array
        } else if (num == 1) {
            return [open[Math.floor(Math.random() * open.length)]]
        } else {
            while (open.length != num) {
                var i = Math.floor(Math.random() * open.length);
                open.splice(i, 1);
            }
            return open;
        }
    };

    this.dead_end = function () {
        return this.open().length == 0;
    };

	return $.extend(this, element);
}

// board is a container class for an array of jquery elements, it is also a jquery element
// selector - a javascript class for the board
// where - where do you want it?
function Board(selector, where) {
    const em = 7.25;
    var width = height = 1;
	  var colorful = false;
    var cell = '<div class="cell" style="width: '+em+'em; height: '+em+'em;"></div>';
    
    if(!selector) {
        selector = '.js-board';
    }

    if(!where) {
        where = '.js-land';
    }
    
    $(selector).remove();    
    $(where).append('<div class="'+selector.slice(1)+' board" style="width:'+em+'em;">'+cell+'</div>');
    var board = $(selector);

	  this.height = function () {		
		  return height;				
    };

    this.width = function () { 
		  return width;    
    };

    // visual, the css width
    this.setWidth = function (value) {
        board.css('width', (value  * em) + 'em');
    };

    this.colorful = function(value) {
    	if(value == undefined) {
    		return colorful;				
    	} else {
    		colorful = value;
    	}     
    };

    this.remove = function () { 
        board.remove();   
    };
    
    this.addTree = function (index, x, y, z) {
        var tree = '<div class="tree"><div class="branch"></div><div class="branch"></div><div class="trunk"></div><div class="shadow"></div></div>';
        tree = $(tree).css('left', x).css('top', y).css('z-index', z);            
        tree = this.cell(index).append(tree);        
    };

  	this.cell = function(index) {        
        if((index > (height * width)) || (index <= 0)) {
            return null;
        } else {
            return new Cell($('.cell', board).eq(index - 1), this);    
        }		
    };

    this.expand = function(direction) {
        if(colorful) {
            cell = "<div class='cell' style='width: "+em+"em; height: "+em+"em; background:"+getRandomColor()+"'></div>";
        }
        
        switch (direction) {
            case NORTH:
            case SOUTH:
                var row = cell.repeat(width);	                
                height++;
                break;
            case WEST:
                $('.cell:nth-child(' + width + 'n+1)').before(cell);
                break;            
            case EAST:
            	  $('.cell:nth-child(' + width + 'n)').after(cell);                
                break;
        }

        switch (direction) {
            case NORTH:
                board.prepend(row);
                break;
            case SOUTH:
                board.append(row);
                break;
            case WEST:
            case EAST:   
     	        width++;
                this.setWidth(width);                
                break;
        }
    };    
}

// cell - what cell does the node belong to?
function Node(cell) {
  	this.cell = function() {	
	  	return cell;			
  	};

    this.tree = function() {    
        return tree;            
    };

    this.id = function(value) {
        // can be removed if new Node is pinned down
        // otherwise there is no way to preserve the value of id
        if(value == undefined) {
            return $(this).attr('data-node-id') || '';
        } else {
            $(this).attr('data-node-id', value);
        }   
    };

    this.render = function() {
        // prevent reinitialization, maybe there should be static methods
        if(!cell.isTaken()) {    
            cell.markTaken().append("<div class='node'></div><div class='east edge'></div><div class='south edge'></div>");
        }

        return $.extend(this, cell.element().find('.node'));
    };

    /*** the following methods deal with branching ***/

    // take_one: deals with details of 'branching', expands board if necessary, checks if node is available, sets node ID, and draws edges
    // direction - the direction to branch towards
    // returns - the taken node, null if it couldn't be done
    this.take_one = function (direction) {
        var node = null;
        var look = cell.around(direction);

        // cell is null, so that part of the board doesn't exist yet
        if (look == null) {
            cell.board().expand(direction);
            look = cell.around(direction);
        }

        if (look.isTaken()) {
            return null;
        } else {                    
            node = new Node(look).render();
        }

        // draw the edge between the calling node and the just taken node
        // these cell level cardinal classes are for the edges, and so you can determine parent/child relationships
        // remember south and east edges are in the calling node, north and west edges are in the adjacent nodes
        if ([SOUTH, EAST].indexOf(direction) > -1) {
            cell.addClass(direction);            
        } else {
            look.addClass(direction);            
        }
              
        return node;
    };

    // take: calls take_one for each direction given, defaults to ONE random direction if none given
    // directions - a list of directions to take
    // returns - the list of taken nodes, empty array if it couldn't be done
    this.take = function (directions) {
        var taken = [];
        var node = null;

        if (directions == null) {
            directions = cell.random_directions();
        } else if (directions.constructor.name == 'String') {
            // casting to array
            directions = directions.split();
        }

        for (var i = 0; i < directions.length; i++) {
            node = this.take_one(directions[i]);

            // don't return nulls
            if (node != null) {
                taken.push(node);
            }
        }

        return taken;
    };

    // branch: branches a node into given directions, unlike take or take_one, this function attempts to fix issues and
    // deals with the relationship between nodes
    // directions - number of directions to branch or an array of directions
    // probablity - the probability of extending before branching
    this.branch = .........完整代码请登录后点击上方下载按钮下载查看