- <html><head><title>俄罗斯方块-柯乐义</title>
- <link rel="Stylesheet" /></head>
- <body><a href="http://keleyi.com/a/bjac/600xsi0s.htm">原文</a></body></html>
- <script>
- var over = false, shapes = ("0,1,1,1,2,1,3,1;1,0,1,1,1,2,2,2;2,0,2,1,2,2,1,2;0,1,1,1,1,2,2,2;1,2,2,2,2,1,3,1;1,1,2,1,1,2,2,2;0,2,1,2,1,1,2,2").split(";");
- function create(tag, CSS) {
- var elm = document.createElement(tag);
- elm.className = css;
- document.body.appendChild(elm);
- return elm;
- }
- function Tetris(c, t, x, y) {
- var c = c ? c : "c";
- this.divs = [create("div", c), create("div", c), create("div", c), create("div", c)];
- this.reset = function () {
- this.x = typeof x != 'undefined' ? x : 3;
- this.y = typeof y != 'undefined' ? y : 0;
- this.shape = t ? t : shapes[Math.floor(Math.random() * (shapes.length - 0.00001))].split(",");
- this.show();
- if (this.field && this.field.check(this.shape, this.x, this.y, 'v') == 'D') {
- over = true;
- this.field.fixShape(this.shape, this.x, this.y);
- alert('游戏结束。http://keleyi.com/game/5/');
- }
- }
- this.show = function () {
- for (var i in this.divs) {
- this.divs[i].style.left = (this.shape[i * 2] * 1 + this.x) * 20 + 'px';
- this.divs[i].style.top = (this.shape[i * 2 + 1] * 1 + this.y) * 20 + 'px';
- }
- }
- this.field = null;
- this.hMove = function (step) {
- var r = this.field.check(this.shape, this.x - -step, this.y, 'h');
- if (r != 'N' && r == 0) {
- this.x -= -step;
- this.show();
- }
- }
- this.vMove = function () {
- if (this.field.check(this.shape, this.x, this.y - -1, 'v') == 'N') {
- this.y++;
- this.show();
- }
- else {
- this.field.fixShape(this.shape, this.x, this.y);
- this.field.findFull();
- this.reset();
- }
- }
- this.rotate = function () {
- var s = this.shape;
- var newShape = [3 - s[1], s[0], 3 - s[3], s[2], 3 - s[5], s[4], 3 - s[7], s[6]];
- var r = this.field.check(newShape, this.x, this.y, 'h');
- if (r == 'D') return;
- if (r == 0) {
- this.shape = newShape;
- this.show();
- }
- else if (this.field.check(newShape, this.x - r, this.y, 'h') == 0) {
- this.x -= r;
- this.shape = newShape;
- this.show();
- }
- }
- this.reset();
- }
- function Field(w, h) {
- this.width = w ? w : 10;
- this.height = h ? h : 20;
- this.show = function () {
- var f = create("div", "f")
- f.style.width = this.width * 20 + 'px';
- f.style.height = this.height * 20 + 'px';
- }
- this.findFull = function () {
- for (var l = 0; l < this.height; l++) {
- var s = 0;
- for (var i = 0; i < this.width; i++) {
- s += this[l * this.width + i] ? 1 : 0;
- }
- if (s == this.width) {
- this.removeLine(l);
- }
- }
- }
- this.removeLine = function (line) {
- for (var i = 0; i < this.width; i++) {
- document.body.removeChild(this[line * this.width + i]);
- }
- for (var l = line; l > 0; l--) {
- for (var i = 0; i < this.width; i++) {
- this[l * this.width - -i] = this[(l - 1) * this.width - -i];
- if (this[l * this.width - -i]) this[l * this.width - -i].style.top = l * 20 + 'px';
- }
- }
- }
- this.check = function (shape, x, y, d) {
- var r1 = 0, r2 = 'N';
- for (var i = 0; i < 8; i += 2) {
- if (shape[i] - -x < 0 && shape[i] - -x < r1)
- { r1 = shape[i] - -x; }
- else if (shape[i] - -x >= this.width && shape[i] - -x > r1)
- { r1 = shape[i] - -x; }
- if (shape[i + 1] - -y >= this.height || this[shape[i] - -x - -(shape[i + 1] - -y) * this.width])
- { r2 = 'D' }
- }
- if (d == 'h' && r2 == 'N') return r1 > 0 ? r1 - this.width - -1 : r1;
- else return r2;
- }
- this.fixShape = function (shape, x, y) {
- var d = new Tetris("d", shape, x, y);
- d.show();
- for (var i = 0; i < 8; i += 2) {
- this[shape[i] - -x - -(shape[i + 1] - -y) * this.width] = d.divs[i / 2];
- }
- }
- }
- var f = new Field();
- f.show();
- var s = new Tetris();
- s.field = f;
- s.show();
- window.setInterval("if(!over)s.vMove();", 500);
- document.onkeydown = function (e) {
- if (over) return;
- var e = window.event ? window.event : e;
- switch (e.keyCode) {
- case 38: //up keleyi.com
- s.rotate();
- break;
- case 40: //down
- s.vMove();
- break;
- case 37: //left
- s.hMove(-1);
- break;
- case 39: //right
- s.hMove(1);
- break;
- }
- }
- </script>
- //该片段来自于http://www.codesnippet.cn/detail/240220148749.html
来源: http://www.codesnippet.cn/detail/240220148749.html