标签：技术分享 单元格 cell 有趣的 rect play http TE 代码
1 <html> 2 <head> 3 <title>生成随机迷宫v1.0</title> 4 </head> 5 <body> 6 <center style="margin-top: 20px;"> 7 <canvas id="myCan1" title="作者：谢辉"></canvas> 8 <p>生成随机迷宫v1.0</p> 9 <button onclick="history.go(0);">刷新</button> 10 </center> 11 </body> 12 <script> 13 var width = 1600; 14 var height = 800; 15 var cellWidth = 40; 16 var canvas = document.getElementById("myCan1"); 17 var cxt = canvas.getContext("2d"); 18 // 初始化canvas容器 19 function initCanvas() { 20 canvas.width = width; 21 canvas.height = height; 22 canvas.style = "border-radius: 15px"; 23 canvas.style.border = "1px solid #3b3b3b"; 24 }; 25 initCanvas(); 26 // 初始化画布 27 function initContext(cxt) { 28 cxt.lineCap="round"; 29 cxt.lineJoin="round"; 30 cxt.lineWidth = 1; 31 } 32 initContext(cxt); 33 // 开始画迷宫 34 function drawMaze(cxt) { 35 drawSingleBox(8, 0, 0, cxt); 36 }; 37 /*setInterval(function(){ 38 cxt.clearRect(0, 0, width, height); 39 drawMaze(cxt); 40 }, 50);*/ 41 drawMaze(cxt); 42 // 递归画单元格 43 function drawSingleBox(option, posX, posY, cxt){ 44 //cxt.strokeStyle = getColor(); 45 switch(option){ 46 case 0: 47 cxt.beginPath(); 48 cxt.moveTo(posX, posY); 49 cxt.lineTo(posX + cellWidth, posY); 50 cxt.stroke(); 51 break; 52 case 1: 53 cxt.beginPath(); 54 cxt.moveTo(posX + cellWidth, posY); 55 cxt.lineTo(posX + cellWidth, posY + cellWidth); 56 cxt.stroke(); 57 break; 58 case 2: 59 cxt.beginPath(); 60 cxt.moveTo(posX, posY + cellWidth); 61 cxt.lineTo(posX + cellWidth, posY + cellWidth); 62 cxt.stroke(); 63 break; 64 case 3: 65 cxt.beginPath(); 66 cxt.moveTo(posX, posY); 67 cxt.lineTo(posX, posY + cellWidth); 68 cxt.stroke(); 69 break; 70 } 71 if(posX >= width - cellWidth && posY >= height - cellWidth) { 72 return; 73 } else { 74 posX += cellWidth; 75 if(posX >= width){ 76 posX = 0; 77 posY += cellWidth; 78 } 79 drawSingleBox(Math.floor(Math.random()*4), posX, posY, cxt); 80 } 81 } 82 // 随机出任意颜色 83 function getColor(){ 84 var colorElements = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f"; 85 var colorArray = colorElements.split(","); 86 var color ="#"; 87 for(var i =0;i<6;i++){ 88 color+=colorArray[Math.floor(Math.random()*16)]; 89 } 90 return color; 91 } 92 </script> 93 </html>
1 setInterval(function(){ 2 cxt.clearRect(0, 0, width, height); 3 drawMaze(cxt); 4 }, 50);
利用纯JS和HTML Canvas生成随机迷宫过程中产生的有趣的事情
标签：技术分享 单元格 cell 有趣的 rect play http TE 代码
原文地址：https://www.cnblogs.com/xhelper/p/9182275.html
