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index.html
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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="description" content="魔方找茬，在线挑战《最强大脑》项目">
<meta name="keywords" content="Cube Wall,魔方找茬,魔方墙,最强大脑,郑才千">
<title>Cube Wall</title>
<style>
:root {
--blue-grey: #607d8b;
}
html, body {
height: 100vh;
}
body {
margin: 0;
display: flex;
flex-direction: column;
}
header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 0px 40px 0px 40px;
background-color: var(--blue-grey);
color: white;
box-shadow: 0 2px 4px -1px rgba(0,0,0,.2), 0 4px 5px rgba(0,0,0,.14), 0 1px 10px rgba(0,0,0,.12);
}
header #dimension {
box-shadow: none;
font-size: 16px;
flex: 1;
margin: 0;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
min-width: 0;
height: 30px;
background-color: transparent;
border-style: none;
border-bottom: 1px solid white;
color: white;
}
header #build, #help {
background-color: transparent;
color: white;
padding: 8px 16px 8px 16px;
font-size: 1em;
border-style: none;
}
header #build:hover, #help:hover {
background-color: lightgrey;
color: black;
border-style: none;
}
main {
flex: 1;
display: flex;
margin: 40px;
}
#left, #right {
box-shadow: 0 1px 5px rgba(0,0,0,.2), 0 2px 2px rgba(0,0,0,.14), 0 3px 1px -2px rgba(0,0,0,.12);
}
#gutter {
width: 40px;
}
</style>
</head>
<body>
<header>
<h2 class="title">Cube Wall</h2>
<div class="input">
<label for="dimension">Dimension(维度):</label>
<input id="dimension" type="number" min="2" max="200" value="10"/>
<button id="build">Build(生成)</button>
<button id="help">Help(帮助)</button>
</div>
</header>
<main id="main">
<canvas id="left">left</canvas>
<div id="gutter"></div>
<canvas id="right">right</canvas>
</main>
<script>
class Wall {
constructor() {
this.main = document.getElementById('main')
this.leftCanvas = document.getElementById('left')
this.leftCtx = this.leftCanvas.getContext('2d')
this.gutter = document.getElementById('gutter')
this.rightCanvas = document.getElementById('right')
this.rightCtx = this.rightCanvas.getContext('2d')
this.canvasWidth = (main.clientWidth - gutter.clientWidth) / 2
this.cellWidth = 0
this.colors = ['white', 'red', 'blue', 'yellow', 'green', 'orange']
this.leftCanvas.width = this.canvasWidth
this.leftCanvas.height = this.canvasWidth
this.leftCanvas.style.width = this.canvasWidth + 'px'
this.leftCanvas.style.height = this.canvasWidth + 'px';
this.rightCanvas.width = this.canvasWidth
this.rightCanvas.height = this.canvasWidth
this.rightCanvas.style.width = this.canvasWidth + 'px'
this.rightCanvas.style.height = this.canvasWidth + 'px';
}
}
Wall.prototype.generateMatrix = function() {
let n = this.dimension
let matrix = new Array(n)
for (let x = 0; x < n; x++) {
matrix[x] = new Array(n)
for (let y = 0; y < n; y++) {
let color = this.colors[parseInt(Math.random() * 6)]
matrix[x][y] = color
}
}
return matrix
}
Wall.prototype.drawPoint = function(ctx, x, y, color) {
let w = this.cellWidth
ctx.fillStyle = color
ctx.fillRect(x * w, y * w, w, w);
ctx.lineWidth = 0.5
ctx.strokeRect(x * w, y * w, w, w);
}
Wall.prototype.drawMatrix = function(ctx, matrix) {
let n = this.dimension
for (let x = 0; x < n; x++) {
for (let y = 0; y < n; y++) {
this.drawPoint(ctx, x, y, matrix[x][y])
}
}
ctx.strokeRect(0, 0, this.canvasWidth, this.canvasWidth);
}
Wall.prototype.randomPoint = function() {
return {
x: parseInt(Math.random() * this.dimension),
y: parseInt(Math.random() * this.dimension)
}
}
Wall.prototype.randomColor = function(oldColor) {
let color = oldColor
do {
let colorIndex = parseInt(Math.random() * this.colors.length)
color = this.colors[colorIndex]
} while (color === oldColor)
return color
}
Wall.prototype.build = function() {
if (this.timerId) {
clearInterval(this.timerId)
this.timerId = null
}
this.dimension = parseInt(document.getElementById('dimension').value)
this.cellWidth = this.canvasWidth / this.dimension
let m = this.generateMatrix()
this.drawMatrix(this.leftCtx, m)
this.matrix = m
this.point = this.randomPoint()
let {x, y} = this.point
let color = this.randomColor(m[x][y])
m[x][y] = color
this.drawMatrix(this.rightCtx, m)
}
Wall.prototype.help = function() {
let {x, y} = this.point
let color = this.matrix[x][y]
if (this.timerId) {
clearInterval(this.timerId)
this.timerId = null
this.blink = false
this.drawPoint(this.rightCtx, x, y, color)
return
}
this.timerId = setInterval(() => {
if (this.blink) {
this.drawPoint(this.rightCtx, x, y, 'black')
} else {
this.drawPoint(this.rightCtx, x, y, color)
}
this.blink = !this.blink
}, 300)
this.drawPoint(this.rightCtx, x, y, 'black')
}
let wall = new Wall()
let build = document.getElementById('build')
build.onclick = wall.build.bind(wall);
let help = document.getElementById('help')
help.onclick = wall.help.bind(wall);
wall.build()
</script>
</body>
</html>