C++实现2048小游戏

代码如下：

  1 #define _crt_secure_no_warnings//去掉编译器内部扩增问题
  2 #include<stdio.h>
  3 #include<stdlib.h>
  4 #include<math.h>
  5 #include<graphics.h>//需要下载图形库
  6 #include<conio.h>
  7 #include<time.h>
  8 #include<string>
  9 #include<fstream>
 10 #include<iostream>
 11 #include<sstream>
 12 using namespace std;
 13 
 14 namespace
 15 {
 16 image image[12];
 17 int imageindex[12];
 18 int map[4][4] = { 2 };
 19 bool isover = true;
 20 bool gameover = false;
 21 enum direction
 22 {
 23 up, down, left, right
 24 };
 25 };
 26 
 27 void setimageindex();//设置图片编号
 28 void loadresource();
 29 void drawmap();
 30 void randintnum();
 31 void keydownanddraw();
 32 bool turnleft(int s[4][4]);
 33 void changeonkeydown(direction direction);
 34 
 35  
 36 
 37 int main()
 38 {
 39 setimageindex();
 40 loadresource();
 41 initgraph(60*4,60*4+120);//游戏界面大小
 42 drawmap();
 43 keydownanddraw();
 44 system("pause");//防止闪屏
 45 //closegraph();
 46 //system("pause");
 47 return 0;
 48 }
 49 void setimageindex()
 50 {
 51 imageindex[0] = 0;
 52 for (int i = 1; i < 12; i++)
 53 {
 54 imageindex[i] = int(pow(2, i));
 55 }
 56 }
 57 void loadresource()//加载图片
 58 {
 59 for (int i = 0; i < 12; i++)
 60 {
 61 char filename[20] = "";
 62 sprintf(filename, "%d.bmp", imageindex[i]);//拼接
 63 loadimage(image + i, filename,60,60);
 64 }
 65 }
 66 
 67 //画地图
 68 void drawmap()
 69 {
 70 string out;
 71 int histryhighlyscore = 0;
 72 ifstream iscore("score.txt");//创建文件读取历史最高分
 73 if (!iscore)
 74 {
 75 ofstream oscore("score.txt");
 76 iscore.open("score.txt");
 77 }
 78 getline(iscore, out);
 79 char score[10];
 80 char highlyscore[100];
 81 int sum=0;
 82 setbkcolor(rgb(244, 215, 215));
 83 cleardevice();
 84 settextcolor(white);//设置文字颜色
 85 settextstyle(35, 0, "楷体");//设置文字格式
 86 outtextxy(50, 10, "2048游戏");
 87 settextcolor(yellow);//设置文字颜色
 88 settextstyle(25, 0, "楷体");//设置文字格式
 89 for (int i = 0; i < 4; i++)//计算分数
 90 {
 91 for (int j = 0; j < 4; j++)
 92 {
 93 if (map[i][j]>4)
 94 {
 95 sum += map[i][j] * sqrt(map[i][j]);
 96 }
 97 }
 98 }
 99 sprintf(score, "分数:%d", sum);
100 outtextxy(10, 300,score);
101 for (int i = 0; i < out.length(); i++)
102 {
103 highlyscore[i] = out[i];
104 }
105 stringstream mid;
106 mid << out;
107 mid >> histryhighlyscore;
108 if (histryhighlyscore>sum)
109 {
110 highlyscore[out.length()] = '\0';
111 settextcolor(red);//设置文字颜色
112 settextstyle(25, 0, "楷体");//设置文字格式
113 outtextxy(10, 330, "历史最高:");
114 outtextxy(130, 330, highlyscore);
115 }
116 else
117 {
118 char score1[20];
119 settextcolor(red);//设置文字颜色
120 settextstyle(25, 0, "楷体");//设置文字格式
121 sprintf(score1, "历史最高:%d", sum);
122 outtextxy(10, 330,score1);
123 ofstream oscore1;
124 oscore1.open("score.txt");
125 oscore1<<sum;
126 oscore1.close();
127 }
128 iscore.close();
129 //根据二维数组去画图
130 int x, y, k;
131 for (int i = 0; i < 4; i++)
132 {
133 for (int j = 0; j < 4; j++)
134 {
135 x = 60 * j;
136 y = 60 * i + 55;
137 for ( k = 0; k < 12; k++)
138 {
139 if (imageindex[k] == map[i][j])
140 {
141 break;
142 }
143 }
144 putimage(x,y,image+k);
145 }
146 }
147 isover = true;
148 }
149 
150 //随机产生2或者4;
151 void randintnum()
152 {
153 bool haszero = false;
154 bool isok=false;
155 srand((unsigned)time(null)); //随机函数种子
156 for (int i = 0; i < 4; i++)
157 {
158 for (int j = 0; j < 4; j++)
159 {
160 if (map[i][j] == 0)
161 {
162 haszero = true;
163 map[i][j] = (rand() % 3) * 2;
164 if (map[i][j] == 0)
165 {
166 continue;
167 }
168 isok = true;
169 break;
170 }
171 }
172 if (isok)
173 {
174 break;
175 }
176 }
177 if (!isok)
178 {
179 isok = false;
180 if (haszero)
181 {
182 for (int i = 0; i < 4; i++)
183 {
184 for (int j = 0; j < 4; j++)
185 {
186 if (map[i][j] == 0)
187 {
188 map[i][j] = 2;
189 isok = true;
190 break;
191 }
192 }
193 if (isok)
194 {
195 break;
196 }
197 }
198 }
199 }
200 for (int i = 0; i < 4; i++)//检测最后一步是否留有空位，若全满游戏结束
201 {
202 for (int j = 0; j < 4; j++)
203 {
204 if (map[i][j] == 0)
205 {
206 drawmap();
207 return;
208 }
209 }
210 }
211 for (int i = 0; i < 4; i++)//游戏失败则重置
212 {
213 for (int j = 0; j < 4; j++)
214 {
215 if (i==0&&j==0)
216 {
217 map[i][j] = 2;
218 continue;
219 }
220 map[i][j] = 0;
221 }
222 }
223 drawmap();
224 }
225 
226 //按键响应
227 void keydownanddraw()
228 {
229 while (true)
230 {
231 char key = _getch();//接收用户按键
232 if (isover)
233 {
234 isover = false;
235 switch (key)
236 {
237 case 'w':
238 case'w':
239 case 72:
240 changeonkeydown(up);
241 break;
242 case 's':
243 case's':
244 case 80:
245 changeonkeydown(down);
246 break;
247 case 'a':
248 case'a':
249 case 75:
250 changeonkeydown(left);
251 break;
252 case 'd':
253 case'd':
254 case 77:
255 changeonkeydown(right);
256 break;
257 default:
258 isover = true;
259 break;
260 }
261 }
262 }
263 }
264 void changeonkeydown(direction direction)
265 {
266 int map[4][4] = { 0 };
267 bool canmove;
268 switch (direction)//将所有方向改为向左方向，并利用向左算法计算各个方向
269 {
270 case up:
271 for (int i = 0; i < 4; i++)
272 {
273 for (int j = 0; j < 4; j++)
274 {
275 map[j][i] = map[i][j];
276 }
277 }
278 break;
279 case down:
280 for (int i = 0; i < 4; i++)
281 {
282 for (int j = 0; j < 4; j++)
283 {
284 map[j][3-i] = map[i][j];
285 }
286 }
287 break;
288 case left:
289 for (int i = 0; i < 4; i++)
290 {
291 for (int j = 0; j < 4; j++)
292 {
293 map[i][j] = map[i][j];
294 }
295 }
296 break;
297 case right:
298 for (int i = 0; i < 4; i++)
299 {
300 for (int j = 0; j < 4; j++)
301 {
302 map[i][3-j] = map[i][j];
303 }
304 }
305 break;
306 default:
307 break;
308 }
309 //向左算法
310 canmove=turnleft(map);
311 //将向左改回各自方向
312 switch (direction)
313 {
314 case up:
315 for (int i = 0; i < 4; i++)
316 {
317 for (int j = 0; j < 4; j++)
318 {
319 map[j][i] =map[i][j];
320 }
321 }
322 break;
323 case down:
324 for (int i = 0; i < 4; i++)
325 {
326 for (int j = 0; j < 4; j++)
327 {
328 map[3-j][i] = map[i][j];
329 }
330 }
331 break;
332 case left:
333 for (int i = 0; i < 4; i++)
334 {
335 for (int j = 0; j < 4; j++)
336 {
337 map[i][j] = map[i][j];
338 }
339 }
340 break;
341 case right:
342 for (int i = 0; i < 4; i++)
343 {
344 for (int j = 0; j < 4; j++)
345 {
346 map[i][3-j] = map[i][j];
347 }
348 }
349 break;
350 default:
351 break;
352 }
353 if (canmove)
354 {
355 randintnum();
356 drawmap();
357 }
358 else
359 {
360 isover = true;
361 }
362 };
363 //算法
364 bool turnleft(int map[4][4])//按向左键进行合并
365 {
366 int k;
367 int len;
368 int save[4];
369 int move[4][4];
370 bool canmove = false;
371 
372 for (int i = 0; i < 4; i++)
373 {
374 for (int j = 0; j < 4; j++)
375 {
376 move[i][j] = map[i][j];
377 }
378 }
379 for (int i = 0; i < 4; i++)
380 {
381 k = 0;
382 len = 0;
383 for (int j = 0; j < 4; j++)
384 {
385 if (map[i][j]==0)
386 {
387 continue;
388 }
389 for (k = j+1; k < 4; k++)
390 {
391 if (map[i][k] != 0 )
392 {
393 if (map[i][j] == map[i][k])
394 {
395 map[i][j] *= 2;
396 map[i][k] = 0;
397 }
398 break;
399 }
400 }
401 }
402 for (int j = 0; j < 4; j++)
403 {
404 if (map[i][j]!=0)
405 {
406 save[len]=map[i][j];
407 len++;
408 }
409 }
410 for (int j = 0; j < 4; j++)
411 {
412 if (j<len)
413 {
414 map[i][j] = save[j];
415 }
416 else
417 {
418 map[i][j] = 0;
419 }
420 }
421 }
422 for (int i = 0; i < 4; i++)
423 {
424 for (int j = 0; j < 4; j++)
425 {
426 if (move[i][j] != map[i][j])
427 {
428 canmove = true;
429 };
430 }
431 }
432 return canmove;
433 }

 

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