此推箱子游戏可以实现人物移动，箱子移动，人物不出框，自义定文件关卡，重新开始以及回退复位等功能的实现，由于系统或版本问题，关卡和人物及物体未做美化处理，希望美化的可自行美化。
1.所用到的宏
#include <stdio.h>#include <stdlib.h>#include <getopt.h>#define MAX_ROWS 16#define MAX_CLOS 16#define MAX_LEVEL 5#define FILE_NAME_LEN 40#define ROAD 0 //路 #define WALL 1 //墙 #define BOX 2 //箱子 #define TERM 3 //门 #define MOUS 4 //老鼠 #define IGN 224 //无效的键值 #define LEFT 75 //上下左右相对应的键值 #define RIGHT 77#define UP 72#define DOWN 80#define MINT MOUS+TERM //老鼠在门上#define BINT BOX+TERM //箱子在门上 #define QUIT 'q'//退出 #define RESET 'r'//重新开始 #define BACK 'b'//回退 #define NM 0#define MM 1#define BM 2#define MAX_BACK_STEP 10//回退最多的步数
2.变量声明
struct Act{int dir;int sta;};struct Act acts[MAX_BACK_STEP] = {};int stepsize = 0;//用于记录回退的数量int newindex = -1;//用于记录产生一个新的动作 int board[MAX_ROWS][MAX_CLOS] = {};int row, col;int mx = 0,my = 0;//记录老鼠位置 int bcnt = 0;//记录箱子
3.地图文件开启
void load(int level){//将地图文件存放在Dev-CC文件夹下 char fileName[FILE_NAME_LEN] = "";sprintf(fileName,"%d.txt",level);FILE *fp = fopen(fileName,"r");//只读形式打开文件 if(fp == NULL){printf("%s文件打开失败\n",fileName);exit(-1);//失败退出 } fscanf(fp,"%d %d",&row,&col);int i,j;bcnt = 0;for(i=0;i<row;i++){for(j=0;j<col;j++){fscanf(fp,"%d",&board[i][j]);//读取地图行和列 if(board[i][j] == MOUS || board[i][j] == MINT){mx = i;my = j;} else if(board[i][j] == BOX || board[i][j] == BINT){++bcnt;}}}fclose(fp);stepsize = 0;newindex = -1;//返回值初始化 }
4.地图显示及记录模块
//显示地图，记录箱子到达终点 int show(void){int i,j;int bs = 0;for(i=0;i<row;i++){for(j=0;j<col;j++){switch(board[i][j]){//画出地图 case ROAD:printf(" ");break;case WALL:printf("#");break;case BINT:++bs;case BOX:printf("@");break;case TERM:printf("O");break; case MOUS:case MINT:printf("&");break; }}printf("\n");}return bs;}
5.物体的移动和关卡的延续
int move(int stepx,int stepy){//老鼠和箱子的移动 int nx = mx + stepx;int ny = my + stepy;if (board[nx][ny] == ROAD || board[nx][ny] == TERM){board[mx][my] -= MOUS;board[nx][ny] += MOUS;mx = nx;my = ny;return MM;}else if(board[nx][ny] == BOX || board[nx][ny] == BINT){//推着箱子走 int nnx = nx + stepx;int nny = ny + stepy;//箱子的坐标 if(board[nnx][nny] == ROAD || board[nnx][nny] == TERM){board[nnx][nny] += BOX;//箱子到达新的地方 board[nx][ny] -= BOX;//箱子从原来的地方离开board[mx][my] -= MOUS;//老鼠离开 board[nx][ny] += MOUS;//老鼠到达的新的点 mx = nx;my = ny;return BM;}}return NM;}
6.回退功能的实现（最难部分）
void moveback(int stepx,int stepy){//回退 int nx = mx+stepx;int ny = my+stepy;board[mx][my] -= MOUS;board[nx][ny] += MOUS;if(acts[newindex].sta == BM){int bx = mx-stepx;int by = my-stepy;board[bx][by] -=BOX;board[mx][my] +=BOX;}mx = nx;my = ny;}void back(void){if(stepsize >0){switch(acts[newindex].dir){case UP:moveback(+1,0);break;case DOWN:moveback(-1,0);break;case LEFT:moveback(0,+1);break;case RIGHT:moveback(0,-1);break; }--stepsize;--newindex;if(newindex == -1){newindex = MAX_BACK_STEP -1;}}}
7.游戏运行主要部分
void play(int level){while(1){system("cls");//清屏 int ret = show();if(ret == bcnt){//箱子和被推到终点的箱子数一样时 printf("恭喜过关，按任意键进入下一关！！");getch();return; }int key = getch();if(key == IGN){key = getch();}if(key == QUIT){//退出 printf("GAME OVER\n");exit(0);} else if(key == RESET){//重新开始 load(level);//重新加载地图 }else if(key == BACK){//回退功能 back(); }ret = NM;switch(key){case UP:ret = move(-1,0);break;case DOWN:ret = move(+1,0);break;case LEFT:ret = move(0,-1);break;case RIGHT:ret = move(0,+1);break;}if(ret == MM || ret == BM){//保存有效动作 用于回退 struct Act act = {key,ret}; //记录动作++newindex;if(newindex>= MAX_BACK_STEP){newindex = 0;}acts[newindex] = act;if(stepsize<MAX_BACK_STEP){++stepsize;//可以退回的步数+1 }}}}//运行函数 void run(void){int level;for(level=1;level<=MAX_LEVEL;level++){load(level);play(level);}}//主函数 int main(int argc, char *argv[]) {run();return 0;}
8.参考关卡文件（可使用windos记事本以.txt形式保存，第一列均为空格）
具体解释存在于代码中。如有不足，请指正！！！
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