JavaScript implements Tetris

[html] 俄罗斯方块 body{ width:530px; background:#F7F7F7; margin:20px auto} table#gameBoard{ border:1px solid black; border-collapse: collapse; float:left;} table#gameBoard td{ width:30px; height:30px; border: 1px dotted #0cc;} div#gameControl{ widows:160; float:right; height: 200px;; line-height: 200px;} .font{ font-family:'微软雅黑'; font-size:18px; text-align:center;} div input { width: 60px; height:25px; } var T = TETRIS = { aBoardGrids : [], aShapes: [ [0xCC00], [0x8888, 0xF00], [0x8C40, 0x6C00], [0x4C80, 0xC600], [0x44C0, 0x8E00, 0xC880, 0xE200], [0x88C0, 0xE800, 0xC440, 0x2E00], [0x4E00, 0x8C80, 0xE400, 0x4C40] ], //代表所有方块的形状数 init : function(){ this.oDomBoard = document.getElementById("gameBoard"); this.oDomScore = document.getElementById("score"); this.aBoardGrids = new Array(18); for (var rows = 0 ; rows this.aBoardGrids[rows] = new Array(10); var oDomTr = this.oDomBoard.insertRow(-1); for (var cols = 0 ; cols this.aBoardGrids[rows][cols] = 0; oDomTr.insertCell(cols); } } document.onkeydown = function(keyEvent){ keyEvent = keyEvent || window.event; var ikeyNum = keyEvent.which || keyEvent.keyCode; switch(ikeyNum){ case 37://← T.oBlock.move("left"); break; case 38://↑ T.oBlock.rotate((function (){ var vShape = T.aShapes[T.iShapeIdx][ (++T.index)%T.aShapes[T.iShapeIdx].length]; var sShape = vShape.toString(2); sShape = new Array(17 - sShape.length).join(0) + sShape; T.matrix = sShape.match(/d{4}/g); return T.matrix; })()); //变形 break; case 39://→ T.oBlock.move("right"); break; case 40://↓ T.oBlock.move("down"); break; } } }, next : function (){ this.iShapeIdx = parseInt(Math.random() * this.aShapes.length); this.index = 0; var vShape = this.aShapes[this.iShapeIdx][this.index]; var sShape = vShape.toString(2); //将16进制转换为二进制 sShape = new Array(17 - sShape.length).join(0) + sShape; //不够16位，在前面用0补全 this.matrix = sShape.match(/d{4}/g); //Register timer T.timer = setInterval(function (){ alert("Game Over~"); clearInterval(T.timer); (){ //Update panel for(var i = 0; i var iLines = 0; If(this.aBoardGrids[j][ i] == 1) m num ++; } if (num == 10) { iLines ++; for (var m = 0; m & lt; i; m ++) ; n > 0 ; n--){ .cells[m].style .background = T.oDomBoard.rows[n-1].cells[m].style.background; j++; } } return iLines; }, setScore : function (iLines){ var iScore = parseInt(this.oDomScore.innerHTML); if(iLines == 1){ iScore += 100; } else if(iLines == 2){ iScore += 300; } else if(iLines == 3){ iScore += 500; } else if(iLines == 4){ iScore += 1000; } this.oDomScore.innerHTML = iScore; } } TETRIS.Block = function (matrix){ this.shape = (function(){ var aShape = []; for(var i = 0 ; i var sValue = matrix[i]; for(var j = 0 ; j if(sValue.charAt(j) == "1"){ aShape.push({ x : j+3 , y : i }); } } } return aShape; })(); this.draw(); } TETRIS.Block.prototype.move = function (direction){//移动 if(this.checkBlock(this.shape,direction)){ this.draw("clear"); for(var i = 0 ; i switch(direction){ case "left"://← this.shape[i].x--; break; case "right": this.shape[i].x++; break; case "down": this.shape[i].y++; break; } } this.draw(); } else { if(direction == "down"){ this.draw(); T.updateBoard(); //更新面板 var iLines = T.eraseLines(); if(iLines > 0){ T.setScore(iLines); } T.next(); //再生成一个新的方块 } } } TETRIS.Block.prototype.rotate = function (matrix){//变形 this.shape = (function(oBlock){ var aX = []; var aY = []; for(var i = 0 ; i aX.push(oBlock.shape[i].x); aY.push(oBlock.shape[i].y); } var iMinX = aX.getMin(); var iMinY = aY.getMin(); var aShape = []; for(var i = 0 ; i var sValue = matrix[i]; for(var j = 0 ; j if(sValue.charAt(j) == "1"){ aShape.push({ x : j+iMinX , y : i+iMinY }); } } } if( !( oBlock.checkBlock(aShape)) ) return oBlock.shape; oBlock.draw("clear"); return aShape; })(this); this.draw(); } TETRIS.Block.prototype.draw = function (opt){//绘图 for(var i = 0 ; i var oShape = this.shape[i]; T.oDomBoard.rows[oShape.y].cells[oShape.x].style.background = (opt==undefined?"#09F":""); } } TETRIS.Block.prototype.checkBlock = function (shape, direction){ shape = shape || this.shape; for(var i = 0 ; i if(direction == "left"){ if(shape[i].x == 0 || T.aBoardGrids[shape[i].y][shape[i].x - 1] == 1){ return false; } } else if(direction == "right"){ if(shape[i].x == 9 || T.aBoardGrids[shape[i].y][shape[i].x + 1] == 1){ return false; } } else if(direction == "down"){ if(shape[i].y == 17 || T.aBoardGrids[shape[i].y + 1][shape[i].x] ==1){ return false; } } if(shape[i].x 9 || shape[i].y 17) return false; if(T.aBoardGrids[shape[i].y][shape[i].x] == 1){ return false; } } return true; } Array.prototype.getMin = function (){ var iMin = this[0]; for(var i = 0 ; i if(this[i] iMin = this[i]; } return iMin; } window.onload = function(){ T.init(); var oBtnPlay = document.getElementById("btnPlay"); oBtnPlay.onclick = function(){ if(this.value == "begin"){ T.next(); this.value = "over"; } else { this.value = "begin"; alert("Game Over~"); clearInterval(T.timer); } } var oBtnPause = document.getElementById("btnPause"); oBtnPause.onclick = function (){ if(this.value == "pause"){ clearInterval(T.timer); this.value = "resume"; } else { T.timer = setInterval(function (){ T.oBlock.move("down"); }, 1000); this.value = "pause"; } } } Score ： 0 俄罗斯方块

JavaScript implements Tetris

Related articles