<html> <head> <meta charset="utf-8"> <title>骰子游戏</title> <style> body{ text-align:center;} #can{ border:1px solid black;} </style> </head> <body> <canvas id='can' width='500px' height='400px'></canvas> <br> <br> <input type='button' id='btnStart' value='开始'> </body></html><script>//定时器变量 var tidck =null; //存放图片的容器 var can; //画布 var ctx; //骰子每次的点数的数组 var SumArray = []; //摇骰子点数的总次数 //var sum = 0; //每次骰子点数的和 var ranSum = 0; //骰子变化次数 var count = 0; //圆点的坐标 var pointCoordinates = [[20,20],[[10,10],[30,30]],[[10,10],[20,20],[30,30]],[[10,10],[10,30],[30,10],[30,30]],[[10,10],[10,30],[20,20],[30,10],[30,30]],[[10,10],[10,20],[10,30],[30,10],[30,20],[30,30]]]; //骰子的坐标 var diceCoordinates = [[40,10],[120,10],[180,10],[250,10],[330,10],[400,10]];/**/ window.onload = function(){ can = document.getElementById('can'); ctx = can.getContext("2d"); /*初始化骰子*/ /*ctx.clearRect(0,0,can.width,can.height); for(var i=0;i<diceCoordinates.length;i ){ ctx.fillStyle = 'orange'; ctx.fillRect(diceCoordinates[i][0],diceCoordinates[i][1],40,40); draw(diceCoordinates[i],i,pointCoordinates[i]); }*/ loadCoordinates(); /*初始化骰子*/ document.getElementById('btnStart').onclick = function(){ //alert(SumArray.length); if(SumArray.length<=8){ //sum ; count = 0; tidck = setInterval(drawCoordinates,100); } else{ if(config("摇骰子的次数不能大于8次,是否清空重新摇骰子？")){ //sum = 0; count = 0; SumArray.splice(0,SumArray.length); loadCoordinates(); tidck = setInterval(drawCoordinates,100); } } }; } //初始化骰子 function loadCoordinates(){ ctx.clearRect(0,0,can.width,can.height); for(var i=0;i<diceCoordinates.length;i ){ ctx.fillStyle = 'orange'; ctx.fillRect(diceCoordinates[i][0],diceCoordinates[i][1],40,40); draw(diceCoordinates[i],i,pointCoordinates[i]); } } //开始摇骰子 function drawCoordinates() { //执行一定次数后放慢速度(使用修改定时执行的时间来达到效果) if(count == 30){ //清除定时执行 window.clearInterval(tidck); //给定时执行赋新的时间 tidck = setInterval(drawCoordinates,200); } else if(count == 45){ window.clearInterval(tidck); tidck = setInterval(drawCoordinates,500); } else if(count == 48){ window.clearInterval(tidck); tidck = setInterval(drawCoordinates,800); } else if(count >= 50){ window.clearInterval(tidck); //alert("摇骰子完成"); //将每次的值放进数组 SumArray.push(ranSum); drawText(ranSum); } else{ //每次的时候先把上一次的点数清零 ranSum = 0; //清理画布 ctx.clearRect(0,0,can.width,60); for(var i=0;i<diceCoordinates.length;i ){ //画笔颜色 ctx.fillStyle = 'orange'; //画正方形 ctx.fillRect(diceCoordinates[i][0],diceCoordinates[i][1],40,40); //获取随机数 var ran = Math.floor(Math.random()*6); ranSum =ran 1; draw(diceCoordinates[i],ran,pointCoordinates[ran]);/**/ } } count ; } //画骰子的点 function draw(dice,ran,drowArray){ ctx.fillStyle = 'red'; for(var i = 0;i<=ran;i ){ var array = drowArray[i]; ctx.beginPath(); if(ran==0) { //alert(drowArray[0]); ctx.arc(drowArray[0] dice[0],drowArray[1] dice[1],5,0,Math.PI*2,true); } else { ctx.arc(array[0] dice[0],array[1] dice[1],5,0,Math.PI*2,true); } ctx.closePath(); ctx.fill(); } } function drawText(ranSum){ ctx.font="30px Verdana"; ctx.fillText("第" (SumArray.length) "次摇的点数是：" SumArray[SumArray.length-1] " " (SumArray[SumArray.length-1]>18?"大":"小"),40,90 40*(SumArray.length-1)); }</script>
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