css+js实现国际益智类象棋游戏代码-html代码-BFW代码库

代码语言：html
所属分类：游戏
代码描述：css+js实现国际益智类象棋游戏代码，使用标准的国际象棋走法，将黑色棋子移动到红色目标格。黑兵在顶层行晋升。不允许吃子。尽量减少移动次数。
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">
  
  
  
<style>
@import url("https://fonts.googleapis.com/css2?family=Poppins&display=swap");
* {
	box-sizing: border-box;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
	scroll-behavior: smooth;
	touch-action: manipulation;
}
html,
body {
	height: 100%;
	overflow: hidden;
}

:root {
	color-scheme: light dark;
	--bg-light: #cecece;
	--bg-dark: #333;
}
[data-theme="light"] {
	color-scheme: light only;
}

[data-theme="dark"] {
	color-scheme: dark only;
}
body {
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
	text-align: center;
	margin: 0;
	font-family: Poppins;
}
body,
.intro-screen,
.info-screen {
	background: linear-gradient(#333, #171a21);
	background: linear-gradient(
		196deg,
		light-dark(var(--bg-light), #3b434a),
		light-dark(#aaa, #171a21)
	);
}
[data-theme="light"] :is(body, .intro-screen, .info-screen) {
	background: linear-gradient(196deg, var(--bg-light), #aaa);
}
[data-theme="dark"] :is(body, .intro-screen, .info-screen) {
	background: linear-gradient(196deg, #3b434a, #171a21);
}
select,
input,
button {
	font-family: Poppins;
	border-radius: 6px;
	padding: 4px 6px;
	cursor: pointer;
	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
}

header {
	position: absolute;
	top: 0;
	width: 100%;
	z-index: 200;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
header .logo {
	text-decoration: none;
	color: light-dark(var(--bg-dark), var(--bg-light));
	display: flex;
	align-items: center;
	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
	cursor: pointer;
}
header .logo svg {
	display: inline-block;
	width: 42px;
	height: 42px;
	fill: light-dark(var(--bg-dark), var(--bg-light));
	margin-right: -6px;
}

.mid-header {
	gap: 12px;
	display: none;
	align-items: center;
}
@media screen and (max-width: 680px) {
	.mid-header {
		position: fixed;
		top: unset;
		bottom: 16px;
		width: 100vw;
		justify-content: space-between;
		flex-wrap: wrap;
		padding: 0 24px;
	}
	.mid-header > :nth-child(n + 2) {
		width: 30%;
	}
	.mid-header > :nth-child(-n + 2) {
		width: 44%;
		order: 1;
	}
	.mid-header > * {
		width: fit-content;
	}
	.mid-header .btn:hover svg {
		top: 2px;
	}
}
#toggleColorScheme {
	margin: 12px;
	width: 24px;
	height: 24px;
	filter: grayscale(1);
	cursor: pointer;
}

.intro-screen,
.info-screen {
	position: absolute;
	width: 100%;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;

	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
}
.intro-screen {
	z-index: 100;
}
.intro-screen h2,
.info-screen h2 {
	font-size: 2em;
	margin-bottom: 0;
	line-height: 100%;
	text-shadow: 0 2px 3px #000;
}
.intro-screen p {
	margin-top: 0;
}
.intro-screen p,
.info-screen p {
	margin-bottom: 2em;
	padding: 0 16px;
	text-shadow: 0 2px 3px #000;
}
.intro-screen p a {
	text-decoration: none;
	color: inherit;
}
.intro-screen p a:hover {
	text-decoration: underline;
}
.btn,
.btn-text,
.btn svg {
	transition: all 0.2s ease-in-out;
}
.btn {
	position: relative;
	border: 1px solid #3333;
	padding: 4px 16px;
	border-radius: 4px;
	background: light-dark(#292929, #bbbbbb);
	color: light-dark(#fff, #292929);
	box-shadow: 0 2px 2px 0 #3333, inset 2px 2px 2px 0 #fff3,
		inset -2px -2px 2px 0 #0003;
	cursor: pointer;
	overflow: hidden;
	white-space: nowrap;
}
.btn:hover {
	border: 1px solid #3335;
	box-shadow: 0 0 0 0 #3330;
	translate: 0 2px;
}
.btn:hover .btn-text {
	filter: blur(5px);
}
.btn svg {
	width: 22px;
	height: 22px;
	position: absolute;
	left: 0;
	right: 0;
	margin: auto;
	top: 42px;
}
.btn:hover svg {
	top: 4px;
}
.btn svg :is(path, polyline, line) {
	stroke: light-dark(#fff, #292929);
	stroke-width: 0.8px;
	fill: #0000;
}
.btn.btn-right svg :is(path, polyline, line) {
	stroke-width: 2px;
}
.btn svg circle {
	fill: light-dark(#fff, #292929);
}
.btn.btn-rotate:hover svg {
	animation: btn-rotate 1s ease-in-out forwards;
}
@keyframes btn-rotate {
	0% {
		rotate: 0deg;
	}
	100% {
		rotate: -360deg;
	}
}
.btn.btn-right:hover svg {
	animation: btn-right 0.4s ease-in-out forwards;
}
@keyframes btn-right {
	0% {
		left: -124%;
	}
	100% {
		left: 0;
	}
}

select {
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	background-color: #fff;
	border: 1px solid #ccc;
	border-radius: 4px;
	padding: 4px 16px;
	font-size: 0.9em;
	line-height: 142%;
	color: #333;
}
select:focus {
	outline: none;
	border-color: #a0bacf;
	box-shadow: 0 0 5px rgba(191, 201, 209, 0.6);
}

.info-screen {
	z-index: 99;
}
.info-screen h2 {
	font-size: 2em;
	margin-bottom: 0;
	line-height: 100%;
}
.intro-screen > img {
	position: absolute;
	opacity: 0.1;
	width: min(400px, 50vw);
	pointer-events: none;
	z-index: -1;
}

.level-clear {
	position: absolute;
	background: light-dark(#fffc, #000c);
	width: 100%;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	z-index: 101;
}
.lvl-clear-box {
	background: light-dark(var(--bg-light), var(--bg-dark));
	border: 1px solid light-dark(var(--bg-dark), var(--bg-light));
	box-shadow: 0 4px 12px 0 #0004;
	color: light-dark(var(--bg-dark), var(--bg-light));
}
.lvl-clear-box h2 {
	padding: 16px;
	border-bottom: 1px solid light-dark(var(--bg-dark), var(--bg-light));
	padding-bottom: 12px;
	margin-top: 0;
}
.lvl-clear-box p {
	line-height: 100%;
	padding: 0;
	padding-bottom: 8px;
	margin: 8px 0;
}
.lvl-clear-box span:not(.btn-text) {
	font-weight: 1000;
	font-size: 1.2em;
	margin-right: 12px;
	display: inline-block;
	text-align: center;
}

.lvl-clear-box .next-lvl,
.lvl-clear-box .same-lvl {
	background: light-dark(var(--bg-dark), var(--bg-light));
	color: light-dark(var(--bg-light), var(--bg-dark));
	width: fit-content;
	margin: auto;
	padding: 4px 16px;
	margin-bottom: 24px;
	cursor: pointer;
}
.lvl-clear-box .same-lvl {
	scale: 0.8;
}

#scoreboard-container {
	display: none;
	position: absolute;
	height: 100%;
	width: 100%;
	justify-content: center;
	align-items: center;
	z-index: 102;
	background-color: #000a;
}
#scoreboard-container.show {
	display: flex;
}
.scoreboard {
	min-width: min(80vw, 242px);
	max-width: calc(100% - 16px);
	height: fit-content;

	position: relative;
	margin: auto;
	background: light-dark(#fffc, #000c);
	padding: 0 12px;
	border: 1px solid light-dark(var(--bg-dark), var(--bg-light));
	box-shadow: 0 4px 12px 0 #0004;
	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
}
.scoreboard #close-score {
	position: absolute;
	right: 4px;
	top: 4px;
	line-height: 100%;
	cursor: pointer;
	font-size: 1em;
}
.scoreboard #close-score svg {
	width: 22px;
}
.scoreboard #close-score svg * {
	fill: light-dark(#000c, #fffc);
}
.scoreboard #close-score:hover svg * {
	fill: light-dark(rgba(92, 92, 92, 0.8), rgba(129, 129, 129, 0.8));
}
.scoreboard h2 {
	line-height: 100%;
	margin: 12px;
}
.scoreboard hr {
	margin: 0;
}
.scores {
	display: flex;
	flex-direction: column;
	flex-wrap: wrap;
	max-height: 300px;
	max-height: min(50vh, 320px);
	overflow: hidden;
	margin-bottom: 4px;
}
.scoreboard p {
	text-align: left;
	line-height: 100%;
	padding: 0;
	padding-bottom: 3px;
	margin: 3px 0 0 0;
	width: 100px;
	white-space: nowrap;
}
.scoreboard p:not(:last-child) {
	border-bottom: 1px solid #fff3;
}
.scoreboard span {
	background: light-dark(var(--bg-dark), var(--bg-light));
	color: light-dark(var(--bg-light), var(--bg-dark));
	padding: 4px;
	margin-right: 12px;
	width: 54px;
	display: inline-block;
	text-align: center;
	font-weight: 800;
	white-space: nowrap;
}

#chessboard {
	--size: min(min(12vw, 10vh), 64px);
	display: grid;
	align-items: center;
	justify-content: center;
	grid-template-columns: repeat(var(--cols, 8), var(--size));
	grid-template-rows: repeat(var(--rows, 8), var(--size));
	gap: 2px;
	margin-bottom: 20px;
	position: relative;
}
.square {
	width: var(--size);
	height: var(--size);
	display: flex;
	justify-content: center;
	align-items: center;
	font-size: 24px;
	border: 1px solid light-dark(#0002, #fff3);

	color: transparent;

	position: relative;
	cursor: grab;

	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;

	transform-style: preserve-3d;
	transform: rotateY(-90deg);
	perspective: 200px;
	animation: flip 0.4s linear forwards;
}

@keyframes flip {
	0% {
		transform: perspective(200px) rotateY(-90deg);
	}
	100% {
		transform: perspective(200px) rotateY(0deg);
	}
}

.square[data-piece="wn"]::before {
	--piece-img: var(--p-wn);
}
.square[data-piece="bn"]::before {
	--piece-img: var(--p-bn);
}
.square[data-piece="wb"]::before {
	--piece-img: var(--p-wb);
}
.square[data-piece="bb"]::before {
	--piece-img: var(--p-bb);
}
.square[data-piece="wp"]::before {
	--piece-img: var(--p-wp);
}
.square[data-piece="bp"]::before {
	--piece-img: var(--p-bp);
}
.square[data-piece="wr"]::before {
	--piece-img: var(--p-wr);
}
.square[data-piece="br"]::before {
	--piece-img: var(--p-br);
}
.square[data-piece="wq"]::before {
	--piece-img: var(--p-wq);
}
.square[data-piece="bq"]::before {
	--piece-img: var(--p-bq);
}
.square[data-piece="wk"]::before {
	--piece-img: var(--p-wk);
}
.square[data-piece="bk"]::before {
	--piece-img: var(--p-bk);
}

.square[data-piece]::before {
	content: "";
	display: block;
	position: absolute;
	width: 100%;
	height: 100%;
	background-size: cover;
	pointer-events: none;
	background-image: var(--piece-img);
}

.white {
	background-color: #ffffff;
}

.black {
	background-color: #888;
}

.highlight {
	background-color: #e0ffbc;
}
.black.highlight {
	background-color: #9ab379;
}

.selected-piece {
	border: 3px solid #000;
}

.gray-out {
	background-color: transparent;
	pointer-events: none;
	border: none;
	opacity: 0.4;
}

.target-square {
	box-shadow: inset 0 0 0 100px #f303;
	border: 2px solid #f006;
}

.square.drag-over {
	border: 2px dashed #000;
}

.promotion-options {
	position: absolute;
	left: 0;
	right: 0;
	margin: auto;
	width: fit-content;
	z-index: 101;
	background: #fff;
	border: 1px solid #000;
	padding: 12px;
	border-radius: 4px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	box-shadow: 0 4px 24px 0 #000;
}
body:has(.promotion-options) :is(.square, .mid-header) {
	pointer-events: none;
}
.promotion-options button {
	display: flex;
	align-items: center;
	cursor: pointer;
	background: #fff;
	color: #000;
	border: 1px solid #0003;
	box-shadow: 0 2px 3px 0 #0003;
	transition: all 0.2s ease-in-out;
}
.promotion-options button::before {
	content: "";
	display: inline-block;
	width: 20px;
	height: 20px;
	margin: 2px 6px 2px 0px;
	--piece-img: var(--p-bq);
	background-image: var(--piece-img);
	background-repeat: no-repeat;
	background-size: cover;
}
.promotion-options button:nth-child(2):before {
	--piece-img: var(--p-bn);
}
.promotion-options button:hover {
	background: #0003;
	translate: 0 2px;
	box-shadow: 0 0px 1px .........完整代码请登录后点击上方下载按钮下载查看