服务器之家

服务器之家 > 正文

JS小游戏之象棋暗棋源码详解

时间:2021-03-18 19:11     来源/作者:JavaScript教程网

本文实例讲述了JS游戏的象棋暗棋源码,分享给大家供大家参考。具体如下:

游戏运行后如下图所示:

JS小游戏之象棋暗棋源码详解

Javascript 部分:

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
/** chinese chess
*  Author: fdipzone
*  Date:  2012-06-24
*  Ver:  1.0
*/
 
var gameimg = ['images/a1.gif','images/a2.gif','images/a3.gif','images/a4.gif','images/a5.gif','images/a6.gif','images/a7.gif','images/b1.gif','images/b2.gif','images/b3.gif','images/b4.gif','images/b5.gif','images/b6.gif','images/b7.gif','images/bg.gif','images/bg_over.gif','images/bg_sel.gif'];
var chess_obj = new ChessClass();
 
window.onload = function(){
  $('init_btn').onclick = function(){
    chess_obj.init();
  }
  var callback = function(){
    chess_obj.init();
  }
  img_preload(gameimg, callback);
}
 
// chess class
function ChessClass(){
  this.chess = [];
  this.boardrows = 4;
  this.boardcols = 8;
  this.area = 82;
  this.player = 1;  // 1:red 2:green
  this.selected = null// selected chess
  this.chesstype = ['', 'a', 'b'];
  this.isover = 0;
}
 
// init
ChessClass.prototype.init = function(){
  this.reset_grade(); 
  this.create_board();
  this.create_chess();
  this.create_event();
  this.player = 1;
  this.selected = null;
  this.isover = 0;
  disp('init_div','hide');
}
 
// create board
ChessClass.prototype.create_board = function(){
  var board = '';
  for(var i=0; i<this.boardrows; i++){
    for(var j=0; j<this.boardcols; j++){
      board = board + '<div id="' + i + '_' + j + '"><img src="images/chessbg.gif" /></div>';
    }
  }
  $('board').innerHTML = board;
  $('board').style.width = this.boardcols * (this.area + 2) + 'px';
  $('board').style.height = this.boardrows * (this.area + 2) + 'px';
}
 
// create random chess
ChessClass.prototype.create_chess = function(){
  // 32 chesses
  var chesses = ['a1','b7','a2','b7','a2','b7','a3','b7','a3','b7','a4','b6','a4','b6','a5','b5',
           'a5','b5','a6','b4','a6','b4','a7','b3','a7','b3','a7','b2','a7','b2','a7','b1'];
  this.chess = [];
  while(chesses.length>0){
    var rnd = Math.floor(Math.random()*chesses.length);
    var tmpchess = chesses.splice(rnd, 1).toString();
    this.chess.push({'chess':tmpchess, 'type':tmpchess.substr(0,1), 'val':tmpchess.substr(1,1), 'status':0});
  }
}
 
// create event
ChessClass.prototype.create_event = function(){
  var self = this;
  var chess_area = $_tag('div', 'board');
  for(var i=0; i<chess_area.length; i++){
    chess_area[i].onmouseover = function(){ // mouseover
      if(this.className!='onsel'){
        this.className = 'on';
      }
    }
    chess_area[i].onmouseout = function(){ // mouseout
      if(this.className!='onsel'){
        this.className = '';
      }
    }
    chess_area[i].onclick = function(){ // onclick
      self.action(this);
    }
  }
}
 
// id change index
ChessClass.prototype.getindex = function(id){
  var tid = id.split('_');
  return parseInt(tid[0])*this.boardcols + parseInt(tid[1]);
}
 
// index change id
ChessClass.prototype.getid = function(index){
  return parseInt(index/this.boardcols) + '_' + parseInt(index%this.boardcols);
}
 
// action
ChessClass.prototype.action = function(o){
  if(this.isover==1){ // game over
    return false;
  }
   
  var index = this.getindex(o.id);
 
  if(this.selected == null){ // 未选过棋子
    if(this.chess[index]['status'] == 0){  // not opened
      this.show(index);  
    }else if(this.chess[index]['status'] == 1){ // opened
      if(this.chess[index]['type'] == this.chesstype[this.player]){
        this.select(index);
      }
    }    
  }else{ // 已选过棋子
    if(index != this.selected['index']){        // 與selected不是同一位置
      if(this.chess[index]['status'] == 0){      // 未打开的棋子
        this.show(index);
      }else if(this.chess[index]['status'] == -1){  // 點空白位置
        this.move(index);
      }else{                     // 點其他棋子
        if(this.chess[index]['type']==this.chesstype[this.player]){
          this.select(index);
        }else{     
          this.kill(index);
        }
      }
    }
  }
}
 
// show chess
ChessClass.prototype.show = function(index){
  $(this.getid(index)).innerHTML = '<img src="images/' + this.chess[index]['chess'] + '.gif" />';
  this.chess[index]['status'] = 1;  // opened
  if(this.selected!=null){      // 清空選中
    $(this.getid(this.selected.index)).className = '';
    this.selected = null;
  }  
  this.change_player();
  this.gameover();
}
 
// select chess
ChessClass.prototype.select = function(index){
  if(this.selected!=null){
    $(this.getid(this.selected['index'])).className = '';
  }
  this.selected = {'index':index, 'chess':this.chess[index]};
  $(this.getid(index)).className = 'onsel';
}
 
// move chess
ChessClass.prototype.move = function(index){
  if(this.beside(index)){
    this.chess[index] = {'chess':this.selected['chess']['chess'], 'type':this.selected['chess']['type'], 'val':this.selected['chess']['val'], 'status':this.selected['chess']['status']};
    this.remove(this.selected['index']);
    this.show(index);
  }
}
 
// kill chess
ChessClass.prototype.kill = function(index){
  if(this.beside(index)==true && this.can_kill(index)==true){
    this.chess[index] = {'chess':this.selected['chess']['chess'], 'type':this.selected['chess']['type'], 'val':this.selected['chess']['val'], 'status':this.selected['chess']['status']};
    this.remove(this.selected['index']);
    var killed = this.player==1? 2 : 1;
    $('grade_num' + killed).innerHTML = parseInt($('grade_num' + killed).innerHTML)-1; 
    this.show(index);
  }
}
 
// remove chess
ChessClass.prototype.remove = function(index){
  this.chess[index]['status'] = -1;  // empty
  $(this.getid(index)).innerHTML = '';
  $(this.getid(index)).className = '';
}
 
/* check is beside
* @param index   目標棋子index
* @param selindex  执行的棋子index,可为空, 为空则读取选中的棋子
*/
ChessClass.prototype.beside = function(index,selindex){
  if(typeof(selindex)=='undefined'){
    if(this.selected!=null){
      selindex = this.selected['index'];
    }else{
      return false;
    }
  }
 
  if(typeof(this.chess[index])=='undefined'){
    return false;
  }
 
  var from_info = this.getid(selindex).split('_');
  var to_info = this.getid(index).split('_');
  var fw = parseInt(from_info[0]);
  var fc = parseInt(from_info[1]);
  var tw = parseInt(to_info[0]);
  var tc = parseInt(to_info[1]);
 
  if(fw==tw && Math.abs(fc-tc)==1 || fc==tc && Math.abs(fw-tw)==1){  // row or colunm is same and interval=1
    return true;
  }else{
    return false;
  }
}
 
/* check can kill
* @param index   被消灭的棋子index
* @param selindex  执行消灭的棋子index,可为空, 为空则读取选中的棋子
*/
ChessClass.prototype.can_kill = function(index,selindex){
  if(typeof(selindex)=='undefined'){ // 没有指定执行消灭的棋子
    if(this.selected!=null){    // 有选中的棋子
      selindex = this.selected['index'];
    }else{
      return false;
    }
  }
  if(this.chess[index]['type']!=this.chesstype[this.player]){
    if(parseInt(this.chess[selindex]['val'])==7 && parseInt(this.chess[index]['val'])==1){ // 7 can kill 1
      return true;
    }else if(parseInt(this.chess[selindex]['val'])==1 && parseInt(this.chess[index]['val'])==7){ // 1 can't kill 7
      return false;
    }else if(parseInt(this.chess[selindex]['val']) <= parseInt(this.chess[index]['val'])){  // small kill big
      return true;
    }
  }
  return false;
}
 
// change player
ChessClass.prototype.change_player = function(){
  if(this.player == 1){
    this.player = 2;  // to green
    $('grade_img2').className = 'img_on';
    $('grade_img1').className = 'img';
  }else{
    this.player = 1;  // to red
    $('grade_img1').className = 'img_on';
    $('grade_img2').className = 'img';
  }
}
 
// reset grade
ChessClass.prototype.reset_grade = function(){
  $('grade_img1').className = 'img_on';
  $('grade_img2').className = 'img';
  $('grade_num1').innerHTML = $('grade_num2').innerHTML = 16;
  $('grade_res1').className = $('grade_res2').className = 'none';
  $('grade_res1').innerHTML = $('grade_res2').innerHTML = '';
}
 
// game over
ChessClass.prototype.gameover = function(){
  if($('grade_num1').innerHTML==0 || $('grade_num2').innerHTML==0){  // 任一方棋子为0
    this.isover = 1;
    this.show_grade();
    disp('init_div','show');
  }else{
    if(this.can_action()==false){
      this.isover = 1;
      this.show_grade();
      disp('init_div','show');
    }
  }
}
 
// show grade
ChessClass.prototype.show_grade = function(){
  var num1 = parseInt($('grade_num1').innerHTML);
  var num2 = parseInt($('grade_num2').innerHTML);
  if(num1>num2){ // 红方胜
    $('grade_res2').innerHTML = 'LOSS';
    $('grade_res2').className = 'loss';
    $('grade_res1').innerHTML = 'WIN';
    $('grade_res1').className = 'win';
  }else if(num1<num2){ // 黑方胜
    $('grade_res1').innerHTML = 'LOSS';
    $('grade_res1').className = 'loss';
    $('grade_res2').innerHTML = 'WIN';
    $('grade_res2').className = 'win';
  }else{ // 平局
    $('grade_res1').innerHTML = $('grade_res2').innerHTML = 'DRAW';
    $('grade_res1').className = $('grade_res2').className = 'draw';
  }
}
 
// check chess can action
ChessClass.prototype.can_action = function(){
  var chess = this.chess;
  for(var i=0,max=chess.length; i<max; i++){
  if(chess[i].status==0){ // 有未翻开的棋子
    return true;
  }else{
    if(chess[i].status==1 && chess[i].type==this.chesstype[this.player]){  // 己方已翻开的棋子
      if(this.beside(i-this.boardcols, i) && (chess[i-this.boardcols].status==-1 || this.can_kill(i-this.boardcols,i) )){ // 上
        return true;
      }
      if(this.beside(i+this.boardcols, i) && (chess[i+this.boardcols].status==-1 || this.can_kill(i+this.boardcols,i) )){ // 下
        return true;
      }
      if(this.beside(i-1, i) && (chess[i-1].status==-1 || this.can_kill(i-1,i) )){  // 左
        return true;
      }
      if(this.beside(i+1, i) && (chess[i+1].status==-1 || this.can_kill(i+1,i) )){  // 右
        return true;
      }
    }
  }
  }
  return false;
}
 
/** common function */
 
// get document.getElementBy(id)
function $(id){
  this.id = id;
  return document.getElementById(id);
}
 
// get document.getElementsByTagName
function $_tag(name, id){
  if(typeof(id)!='undefined'){
    return $(id).getElementsByTagName(name);
  }else{
    return document.getElementsByTagName(name); 
  }
}
 
/* div show and hide
* @param id dom id
* @param handle show or hide
*/
function disp(id, handle){
  if(handle=='show'){
    $(id).style.display = 'block';
  }else{
    $(id).style.display = 'none';  
  }
}
 
/* img preload
* @param img    要加载的图片数组
* @param callback  图片加载成功后回调方法
*/
function img_preload(img, callback){
  var onload_img = 0;
  var tmp_img = [];
  for(var i=0,imgnum=img.length; i<imgnum; i++){
    tmp_img[i] = new Image();
    tmp_img[i].src = img[i];
    if(tmp_img[i].complete){
      onload_img ++;
    }else{
      tmp_img[i].onload = function(){
        onload_img ++;
      }
    }
  }
  var et = setInterval(
    function(){
      if(onload_img==img.length){ // 定时器,判断图片完全加载后调用callback
        clearInterval(et);
        callback();
      }
    },200);
}

完整实例代码点击此处本站下载

相信本文所述对大家javascript游戏设计的学习有一定的借鉴价值。

标签:

相关文章

热门资讯

2020微信伤感网名听哭了 让对方看到心疼的伤感网名大全
2020微信伤感网名听哭了 让对方看到心疼的伤感网名大全 2019-12-26
yue是什么意思 网络流行语yue了是什么梗
yue是什么意思 网络流行语yue了是什么梗 2020-10-11
背刺什么意思 网络词语背刺是什么梗
背刺什么意思 网络词语背刺是什么梗 2020-05-22
Intellij idea2020永久破解,亲测可用!!!
Intellij idea2020永久破解,亲测可用!!! 2020-07-29
苹果12mini价格表官网报价 iPhone12mini全版本价格汇总
苹果12mini价格表官网报价 iPhone12mini全版本价格汇总 2020-11-13
返回顶部