<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title>微信小游戏-转你妹</title> </head> <body> <div> <canvas width="600" height="600" id="canvas" style="border:1px solid red;"></canvas> <script> var canvas = document.getElementById('canvas'); var cxt = canvas.getContext('2d'); var index = 0; var timer; var iStop = false; var ladderLen = 60; var outerLen = 200; var boxLen = 20; var score = 0; var isCal = false; var ladderA = {'degree':0, 'boxes':[{'index':1,'color':'red'}, {'index':2,'color':'green'}]}; var ladderB = {'degree':60, 'boxes':[{'index':1,'color':'yellow'}]}; var ladderC = {'degree':120, 'boxes':[]}; var ladderD = {'degree':180, 'boxes':[]}; var ladderE = {'degree':240, 'boxes':[]}; var ladderF = {'degree':300, 'boxes':[{'index':1,'color':'blue'}]}; var ladderX = [{'degree':300, 'index':7, 'color':'red'}, {'degree':240, 'index':7, 'color':'red'}]; var colors = ['yellow', 'blue', 'green', 'red']; function drawBg(){ /*********外部六边形**********/ cxt.save(); cxt.beginPath(); cxt.fillStyle = 'gray'; cxt.translate(300, 300); cxt.moveTo(outerLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(outerLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(outerLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(outerLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(outerLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(outerLen, 0); cxt.closePath(); cxt.fill(); cxt.restore(); /********内部六边形***********/ cxt.save(); cxt.beginPath(); cxt.translate(300, 300); cxt.moveTo(ladderLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(ladderLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(ladderLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(ladderLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(ladderLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(ladderLen, 0); cxt.closePath(); cxt.fill(); cxt.restore(); } function drawLadder(ladderA){ for(var i=0; i<ladderA.boxes.length; i++){ cxt.save(); cxt.translate(300, 300); cxt.fillStyle = ladderA.boxes[i].color; cxt.beginPath(); cxt.rotate(ladderA.degree*Math.PI/180); cxt.moveTo(ladderLen + (ladderA.boxes[i].index - 1)*boxLen, 0); cxt.lineTo(ladderLen + ladderA.boxes[i].index*boxLen, 0); cxt.rotate(60*Math.PI/180); cxt.lineTo(ladderLen + ladderA.boxes[i].index*boxLen, 0); cxt.lineTo(ladderLen + (ladderA.boxes[i].index - 1)*boxLen, 0); cxt.closePath(); cxt.fill(); cxt.restore(); } } // 画下落的梯形 function drawX(){ isCal = true; var _ladderX = []; for(var i=0; i<ladderX.length; i++){ cxt.save(); cxt.translate(300, 300); cxt.fillStyle = ladderX[i].color; cxt.beginPath(); cxt.rotate(ladderX[i].degree * Math.PI / 180); cxt.moveTo(ladderLen + (ladderX[i].index - 1) * boxLen, 0); cxt.lineTo(ladderLen + ladderX[i].index * boxLen, 0); cxt.rotate(60 * Math.PI / 180); cxt.lineTo(ladderLen + ladderX[i].index * boxLen, 0); cxt.lineTo(ladderLen + (ladderX[i].index - 1) * boxLen, 0); cxt.closePath(); cxt.fill(); cxt.restore(); var isDel = false; var _ladder = qryLadder(ladderX[i].degree); if(_ladder.boxes.length == 0){ if(ladderX[i].index == 1){ isDel = true; _ladder.boxes.push({'index':ladderX[i].index,'color':ladderX[i].color}); getScore(); } }else if(_ladder.boxes.length == 7 && ladderX[i].index == 7){ iStop = true; alert('game over!'); }else if((_ladder.boxes[_ladder.boxes.length-1].index + 1) == ladderX[i].index){ isDel = true; _ladder.boxes.push({'index':ladderX[i].index,'color':ladderX[i].color}); getScore(); } if(!isDel){ _ladderX.push(ladderX[i]); } if(index%20 == 0){ ladderX[i].index -= 1; } } ladderX = _ladderX; if(ladderX.length == 0){ randomX(); } isCal = false; } // 随机下落的梯形 function randomX(){ ladderX = []; var degree = Math.floor(Math.random()*6)*60; var color = colors[Math.floor(Math.random()*4)]; var num = Math.round(Math.random()*3); for(var i=0; i<num; i++){ var _degree = degree + i*60; if(_degree >= 360){ _degree -= 360; } ladderX.push({'degree':_degree, 'index':7, 'color':color}); } console.log(ladderX); } // 依据degree查找相应的梯形 function qryLadder(degree){ if(ladderA.degree == degree){ return ladderA; } if(ladderB.degree == degree){ return ladderB; } if(ladderC.degree == degree){ return ladderC; } if(ladderD.degree == degree){ return ladderD; } if(ladderE.degree == degree){ return ladderE; } if(ladderF.degree == degree){ return ladderF; } } function draw(){ drawBg(); drawLadder(ladderA); drawLadder(ladderB); drawLadder(ladderC); drawLadder(ladderD); drawLadder(ladderE); drawLadder(ladderF); drawX(); drawScore(); } function erase(){ cxt.clearRect(0, 0, canvas.width, canvas.height); } function add60(ladder){ if(ladder.degree == 300){ ladder.degree = 0; }else{ ladder.degree += 60; } } function del60(ladder){ if(ladder.degree == 0){ ladder.degree = 300; }else{ ladder.degree -= 60; } } function getScore(){ var minLen = ladderA.boxes.length; minLen = ladderB.boxes.length<minLen?ladderB.boxes.length:minLen; minLen = ladderC.boxes.length<minLen?ladderC.boxes.length:minLen; minLen = ladderD.boxes.length<minLen?ladderD.boxes.length:minLen; minLen = ladderE.boxes.length<minLen?ladderE.boxes.length:minLen; minLen = ladderF.boxes.length<minLen?ladderF.boxes.length:minLen; score += minLen*10; for(var i=0; i<minLen; i++){ ladderA.boxes.shift(); for(var j=0; j<ladderA.boxes.length; j++){ ladderA.boxes[j].index --; } ladderB.boxes.shift(); for(var j=0; j<ladderB.boxes.length; j++){ ladderB.boxes[j].index --; } ladderC.boxes.shift(); for(var j=0; j<ladderC.boxes.length; j++){ ladderC.boxes[j].index --; } ladderD.boxes.shift(); for(var j=0; j<ladderD.boxes.length; j++){ ladderD.boxes[j].index --; } ladderE.boxes.shift(); for(var j=0; j<ladderE.boxes.length; j++){ ladderE.boxes[j].index --; } ladderF.boxes.shift(); for(var j=0; j<ladderF.boxes.length; j++){ ladderF.boxes[j].index --; } } } function drawScore(){ cxt.save(); cxt.font="40px Verdana"; cxt.fillStyle = 'skyblue'; cxt.fillText(score + "", 280, 314); cxt.restore(); } var last = new Date(); document.onkeydown = (function(e){ var now = new Date(); if((now.getTime() - last.getTime()) < 200 || isCal){ return; } last = now; switch(e.which){ case 39: del60(ladderA); del60(ladderB); del60(ladderC); del60(ladderD); del60(ladderE); del60(ladderF); break; case 37: add60(ladderA); add60(ladderB); add60(ladderC); add60(ladderD); add60(ladderE); add60(ladderF); break; } }); window.requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame; window.cancelRequestAnimationFrame = window.cancelRequestAnimationFrame || window.mozCancelRequestAnimationFrame || window.webkitCancelRequestAnimationFrame || window.msCancelRequestAnimationFrame; function animate() { index ++; erase(); draw(); if(iStop){ cancelRequestAnimationFrame(timer); }else{ timer = requestAnimationFrame(animate); } } animate(); </script> </div> </body> </html>
本文转自mfrbuaa博客园博客,原文链接:http://www.cnblogs.com/mfrbuaa/p/5325899.html,如需转载请自行联系原作者