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2048 study.html
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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>HTML 5 Game</title>
<script src="js/jquery-1.4.2.js"></script>
<script>
$(function(){
var canvasElement = $("#scene");//获取画布的jquery对象
var canvas = canvasElement.get(0).getContext("2d");//获取画布上下文
var canvas_wh = canvasElement.width();//获取画布宽度（高度请保持一致）
var FPS = 30;//刷新率
var bg_radius = 6.0;//圆角度数
var bg_color = "#bbada0";//背景色
var lcbg_color = "rgba(238, 228, 218, 0.35)";//格子的背景色
var lc_setting = {
2 : {
"fontsize":42,
"bgcolor":"#eee4da",
"fontupdateheight":1,
"color":"#776e65"
},
4 : {
"fontsize":42,
"bgcolor":"#ede0c8",
"fontupdateheight":1,
"color":"#776e65"
},
8 : {
"fontsize":42,
"bgcolor":"#f2b179",
"fontupdateheight":1,
"color":"#f9f6f2"
},
16 : {
"fontsize":40,
"bgcolor":"#f59563",
"fontupdateheight":1,
"color":"#f9f6f2"
},
32 : {
"fontsize":40,
"bgcolor":"#f67c5f",
"fontupdateheight":1,
"color":"#f9f6f2"
},
64 : {
"fontsize":40,
"bgcolor":"#f65e3b",
"fontupdateheight":1,
"color":"#f9f6f2"
},
128 : {
"fontsize":31,
"bgcolor":"#edcf72",
"fontupdateheight":4,
"color":"#f9f6f2"
},
256 : {
"fontsize":31,
"bgcolor":"#edcf72",
"fontupdateheight":4,
"color":"#f9f6f2"
},
512 : {
"fontsize":31,
"bgcolor":"#edcf72",
"fontupdateheight":4,
"color":"#f9f6f2"
},
1024 : {
"fontsize":28,
"bgcolor":"#edcf72",
"fontupdateheight":4,
"color":"#f9f6f2"
},
2048 : {
"fontsize":28,
"bgcolor":"#edcf72",
"fontupdateheight":4,
"color":"#f9f6f2"
}
};
var grid_data = [];//记录数据容器
var lineAndColumn = 4;//每行格子的数量（列一致）
var lc_space = 16;//边距
var lc_wh = (canvas_wh - lc_space * (lineAndColumn + 1)) / 4;//格式的宽（正方形，宽高一致）
setInterval(function(){
draw();
}, 1000/FPS);
function draw(){
canvas.clearRect( 0, 0, canvas_wh, canvas_wh);
background();
griddraw();
}
//背景和背景格子
function background(){
//绘制背景
canvas.fillStyle = bg_color;
roundRectanglePath(canvas, new Rect( 0, 0, canvas_wh, canvas_wh), bg_radius);
canvas.fill();
//绘制格子的背景
canvas.fillStyle = lcbg_color;
var larr = [];//因为格子是对称的，所以只需要计算一列的一个方向的坐标 进行复用
for (var i = lineAndColumn - 1; i >=0; i--) {
larr[i] = lc_space + i * (lc_wh + lc_space);
}
for (var i = lineAndColumn - 1; i >=0; i--) {
for (var j = lineAndColumn - 1; j >=0; j--) {
roundRectanglePath(canvas, new Rect( larr[i], larr[j], lc_wh, lc_wh), bg_radius);
canvas.fill();
}
}
}
//初始化格子数据
function gameinit(){
for (var i = lineAndColumn - 1; i >=0; i--) {
grid_data[i] = new Array();
for (var j = lineAndColumn - 1; j >=0; j--) {
grid_data[i][j] = 0;
};
};
grid_data[0][0] = 2;
grid_data[0][1] = 2;
grid_data[0][2] = 2;
grid_data[0][3] = 2;
//gameRandom(2);
}
//随机填充两个格子的数据
function gameRandom(count){
var x = 0;
var y = 0;
for (var i = count - 1; i >= 0; i--) {
x = Math.floor(Math.random() * 4);
y = Math.floor(Math.random() * 4);
if (grid_data[x][y] == 0) {
var num = Math.random();
if (num > 0.66666) {
num = 4;
}else{
num = 2;
}
grid_data[x][y] = num;
//console.log("x" + x + "y" + y);
}else{
i++;
}
}
}
//绘制格子
function griddraw(){
var lc_x;
var lc_y;
for (var i = lineAndColumn - 1; i >=0; i--) {
lc_y = lc_space + i * (lc_wh + lc_space);
for (var j = lineAndColumn - 1; j >=0; j--) {
var count = grid_data[i][j];
if (count != 0) {
lc_x = lc_space + j * (lc_wh + lc_space);
var rect = new Rect( lc_x, lc_y, lc_wh, lc_wh);
canvas.fillStyle = lc_setting[count]["bgcolor"];
roundRectanglePath(canvas, rect, bg_radius);
canvas.fill();
// console.log("x" + i + " y" + j + "count" + grid_data[i][j]);
canvas.fillStyle = lc_setting[count]["color"];
canvas.font = "bold "+ lc_setting[count]["fontsize"] + "px Arial";
canvas.textAlign = "center";
canvas.fillText("" + count, lc_x + 38, lc_y + lc_wh/2.0 + 16 - lc_setting[count]["fontupdateheight"]);
}
}
}
}
//矩形对象
function Rect( x, y, width, height)
{
this.x = x;
this.y = y;
this.width = width;
this.height= height;
}
//矩形对象的方法
Rect.prototype.getX = function()
{
return this.x;
};
Rect.prototype.getY = function()
{
return this.y;
};
Rect.prototype.getWidth = function()
{
return this.width;
};
Rect.prototype.getHeight = function()
{
return this.height;
};
Rect.prototype.getLeft = function()
{
return this.x;
};
Rect.prototype.getTop = function()
{
return this.y;
};
Rect.prototype.getRight = function()
{
return (this.x + this.width);
};
Rect.prototype.getBottom = function()
{
return (this.y + this.height);
};
//绘制矩形
function roundRectanglePath( context, rect, radius){
context.beginPath();
context.moveTo( rect.getX() + radius, rect.getY());
context.lineTo( rect.getRight() - radius, rect.getY());
context.arc(rect.getRight() - radius, rect.getY() + radius, radius, 3 * Math.PI/2, 2 * Math.PI, false);//(圆心坐标X，圆心坐标Y，半径，开始角度，结束角度，是否反向绘制)
context.lineTo( rect.getRight(), rect.getBottom() - radius);
context.arc( rect.getRight() - radius, rect.getBottom() - radius, radius, 0, Math.PI/2, false);
context.lineTo( rect.getX() + radius, rect.getBottom() );
context.arc( rect.getX() + radius, rect.getBottom() - radius, radius, Math.PI/2, Math.PI, false);
context.lineTo( rect.getX(), rect.getY() + radius);
context.arc( rect.getX() + radius, rect.getY() + radius, radius, Math.PI, 3 * Math.PI/2, false);
context.closePath();
}
gameinit();//游戏初始化
//键盘绑定事件
$(document).keydown(function(event){
var result;
switch(event.keyCode){
case 37:
result = "左";
getGArray(0,0);//(横向0 纵向1, 0代表是递增遍历 1代表递减遍历)
console.log(result);
break;
case 38:
result = "上";
getGArray(1, 0);
console.log(result);
break;
case 39:
result = "右";
getGArray(0, 1);
console.log(result);
break;
case 40:
result = "下";
getGArray(1, 1);
console.log(result);
break;
}
});
//调试，打印格子的所有信息
// function arrayprint(array){
// console.log("-------------");
// for (var i = 0; i < array.length; i++) {
// for (var j = 0; j < array[i].length; j++){
// var count = array[i][j];
// console.log(" x:" + i + " y:" + j + " count:" + count);
// }
// }
// console.log("-------------");
// }
//得到整理的数组
function getGArray(start,lineOrColumn){
var grid_array = [];
var cord_index = 0;
var isCheckNull = false;
if (start == 0) {
//外循环纵向
if (lineOrColumn == 0) {
//从左向右获取值，键盘左
for (var i = 0; i < lineAndColumn; i++) {
cord_index = 0;
grid_array[i] = new Array();
for (var j = 0; j < lineAndColumn; j++) {
if (grid_data[i][j] != 0) {
grid_array[i][cord_index] = grid_data[i][j];
cord_index++;
}
};
if(cord_index< lineAndColumn - 1){
isCheckNull = true;
}
};
}else{
//从右至左获取值，键盘右
for (var i = 0; i < lineAndColumn; i++) {
cord_index = 0;
grid_array[i] = new Array();
for (var j = lineAndColumn - 1; j >= 0; j--) {
if (grid_data[i][j] != 0) {
grid_array[i][cord_index] = grid_data[i][j];
cord_index++;
}
};
if(cord_index< lineAndColumn - 1){
isCheckNull = true;
}
};
}
}else{
//外循环横向
if (lineOrColumn == 0) {
//从上到下获取值，键盘上
for (var j = 0; j < lineAndColumn; j++) {
cord_index = 0;
grid_array[j] = new Array();
for (var i = 0; i < lineAndColumn; i++) {
if (grid_data[i][j] != 0) {
grid_array[j][cord_index] = grid_data[i][j];
cord_index++;
}
};
if(cord_index< lineAndColumn - 1){
isCheckNull = true;
}
};
}else{
//从下到上获取值，键盘下
for (var j = 0; j < lineAndColumn; j++) {
cord_index = 0;
grid_array[j] = new Array();
for (var i = lineAndColumn - 1; i >= 0; i--) {
if (grid_data[i][j] != 0) {
grid_array[j][cord_index] = grid_data[i][j];
cord_index++;
}
};
//可以检查该行是否有空
if(cord_index< lineAndColumn - 1){
isCheckNull = true;
}
};
}
}
//凡是有空格子、经过移动或者合并代表下一步还能继续玩，所以不用检查直接随机生成一个格子
var isMoved = moveArray(grid_array, start, lineOrColumn);
if(isMoved){
setTimeout(function(){
gameRandom(1);
},100) ;
console.log("不用检查");
}else{
if(!isCheckNull){
if(checkGameIsOver()){
console.log("游戏尚未结束噢，随机一个呗");
setTimeout(function(){
gameRandom(1);
},100) ;
}else{
alert("游戏已经结束");
}
}
}
}
//运算，移动 （传入的数组是已被整理为同种排列格式）
function moveArray(array, start, lineOrColumn){
var isMove = false;//返回结果，代表是否进行过移动
var isMerge = false;//统计相同数值是否进行过合并
for(var i = 0;i < array.length; i++){
var isLineMerge = true;//该行尚未进行过合并
for(var j = 0; j < array[i].length; j++){
if(array[i][j] != 0 ){
if(array[i][j] == array[i][j+1] && isLineMerge){
array[i][j] += array[i][j];//合并同等数值
array[i][j+1] = 0;//后向置0
isMerge = true;
isLineMerge = false;
}
if( (j-1) >= 0 && array[i][j-1] == 0 ){
array[i][j-1] = array[i][j];
array[i][j] = 0;
}
}
}
}
var isUpdated = dataUpdate(array,start,lineOrColumn);
return (isMove || isMerge || isUpdated);
}
//数据更新修正
function dataUpdate(array, start, lineOrColumn){
var isUpdated = false;
if (start == 0) {
//外循环纵向
if (lineOrColumn == 0) {
//从左向右获取值，键盘左
console.log("update左");
for (var i = 0; i < lineAndColumn; i++) {
for (var j = 0; j < array[i].length; j++) {
if(grid_data[i][j] != array[i][j]) {
grid_data[i][j] = array[i][j];
isUpdated = true;
}
}
for (var j = array[i].length;j < lineAndColumn;j++){
grid_data[i][j] = 0;
}
}
}else{
//从右至左获取值，键盘右
console.log("update右");
for (var i = 0; i < lineAndColumn; i++) {
for (var j = lineAndColumn - 1,k = 0; k < array[i].length; k++, j--) {
if(grid_data[i][j] != array[i][k]) {
grid_data[i][j] = array[i][k];
isUpdated = true;
}
}
for(var j = lineAndColumn - 1 - array[i].length; j>= 0 ;j--){
grid_data[i][j] = 0;
}
}
}
}else{
//外循环横向
if (lineOrColumn == 0) {
//从上到下获取值，键盘上
console.log("update上");
for (var j = 0; j < lineAndColumn; j++) {
for (var i = 0; i < array[j].length; i++) {
if(grid_data[i][j] != array[j][i]) {
grid_data[i][j] = array[j][i];
isUpdated = true;
}
}
for (var i = array[j].length; i < lineAndColumn; i++){
grid_data[i][j] = 0;
}
}
}else{
//从下到上获取值，键盘下
console.log("update下");
for (var j = 0; j < lineAndColumn; j++) {
for (var i = lineAndColumn - 1,k = 0;k < array[j].length; k++, i--) {
if(grid_data[i][j] != array[j][k]) {
grid_data[i][j] = array[j][k];
isUpdated = true;
}
}
for (var i = lineAndColumn - 1 - array[j].length;i >= 0; i--){
grid_data[i][j] = 0;
}
}
}
}
return isUpdated;
}
//检测游戏是否结束 游戏是否还能继续移动
function checkGameIsOver(){
var jRight = 0;
var jBottom = 0;
for(var i = 0; i < lineAndColumn; i++){
for(var j = 0; j < lineAndColumn; j++){
jRight = j + 1;
if(jRight < lineAndColumn){
if(grid_data[i][j] == grid_data[i][jRight] || grid_data[i][j] == 0 || grid_data[i][jRight] == 0){
return true;
}
}
jBottom = i + 1;
if(jBottom < lineAndColumn){
if(grid_data[i][j] == grid_data[jBottom][j] || grid_data[i][j] == 0 || grid_data[jBottom][j] == 0){
return true;
}
}
}
}
}
});
</script>
</head>
<body>
<div class="container">
<canvas id="scene" width="400" height="400"></canvas>
</div>
</body>
</html>