对吃豆人小游戏的二次开发
1. 来源
https://www.cnblogs.com/demc/p/16905528.html
2. 运行环境及运行结果
运行环境
操作系统：Windows
编程语言：C++
编译器：支持 C++ 的编译器（如 GCC、MSVC）
其他依赖：Windows 控制台和 Windows API
编辑器：DevC++
运行结果
点击查看代码
#include <cstdio>
#include <iostream>
#include <ctime>
#include <conio.h>
#include <windows.h>
#include <cstdlib>
#include <cstring>
using namespace std;
const int n=809;
struct Point {int x,y;};
int dali;
int fx[4]={-1,27,1,-27};
int fxfx[4][2]={{0,-1},{1,0},{0,1},{-1,0}};
int dis[1000][1000];
int changdi[30][27]={
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,1,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,1,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0},
{0,1,1,1,1,1,1,0,0,1,1,1,1,0,1,1,1,1,0,0,1,1,1,1,1,1,0},
{0,0,0,0,0,0,1,0,0,0,0,0,2,0,2,0,0,0,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,0,0,0,2,0,2,0,0,0,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,2,2,2,2,2,2,2,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,3,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,3,3,3,3,3,0,2,0,0,1,0,0,0,0,0,0},
{2,2,2,2,2,2,1,2,2,2,0,3,3,3,3,3,0,2,2,2,1,2,2,2,2,2,2},
{0,0,0,0,0,0,1,0,0,2,0,3,3,3,3,3,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,2,2,2,2,2,2,2,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,1,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,0},
{0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0},
{0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0},
{0,1,1,1,1,1,1,0,0,1,1,1,1,0,1,1,1,1,0,0,1,1,1,1,1,1,0},
{0,1,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,1,0},
{0,1,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,1,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
};
int x,x1,x2,x3,x4,y,y1,y2,y3,y4;
int now,now1,now2,now3,now4;
int g1,g2,g3,g4;
int fangx,nextfx,last1,last2,last3,last4;
int fenshu,guozi,guaitimer;
int T1,T2,t1,t2,stopped, f=0;
int beichi;
void color(int a)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),a);
}
void gotoxy(int x,int y)
{
COORD pos;
pos.X=2*y;
pos.Y=x;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);
}
void begin(){
system("cls");
color(11); printf(" ★"); color(10); printf("吃豆人"); color(11); printf("★\n\n"); color(7);
printf(" 正在初始化，请耐心等待");
for (int i=0; i<=n; i++) for (int j=1; j<=n; j++) dis[i][j]=900;
for (int i=0; i<=n; i++){
for (int j=0; j<=3; j++){
if (i+fx[j]>=0 && i+fx[j]<=n){
int k=i+fx[j],xx=k/27,yy=k%27,kk;
if (changdi[i/27][i%27] && changdi[xx][yy]) dis[i][k]=kk=1;
}
}
}
for (int k=0; k<=n; k++)if(changdi[k]){
for (int i=0; i<=n; i++)if(changdi[i])
for (int j=0; j<=n; j++)if(changdi[j])
if (dis[i][j]>dis[i][k]+dis[k][j]) dis[i][j]=dis[i][k]+dis[k][j];
if (k%80==0){color (13); gotoxy(3,0); printf("│");}
if (k%80==20){color(13); gotoxy(3,0); printf("╱");}
if (k%80==40){color(13); gotoxy(3,0); printf("─");}
if (k%80==60){color(13); gotoxy(3,0); printf("╲");}
if (k%80==0){color (13); gotoxy(3,12); printf("│");}
if (k%80==20){color(13); gotoxy(3,12); printf("╱");}
if (k%80==40){color(13); gotoxy(3,12); printf("─");}
if (k%80==60){color(13); gotoxy(3,12); printf("╲");}
if (k%60==0){color(11); gotoxy(5,k/60); printf("●");}
}
}
void shuru(){
char ch=getch();
if (ch=='a') if (changdi[x+fxfx[0][0]][y+fxfx[0][1]]==1|changdi[x+fxfx[0][0]][y+fxfx[0][1]]==2) fangx=nextfx=0; else nextfx=0;
else if (ch=='s') if (changdi[x+fxfx[1][0]][y+fxfx[1][1]]==1|changdi[x+fxfx[1][0]][y+fxfx[1][1]]==2) fangx=nextfx=1; else nextfx=1;
else if (ch=='d') if (changdi[x+fxfx[2][0]][y+fxfx[2][1]]==1|changdi[x+fxfx[2][0]][y+fxfx[2][1]]==2) fangx=nextfx=2; else nextfx=2;
else if (ch=='w') if (changdi[x+fxfx[3][0]][y+fxfx[3][1]]==1|changdi[x+fxfx[3][0]][y+fxfx[3][1]]==2) fangx=nextfx=3; else nextfx=3;
else if (ch=='0') stopped=(stopped+1)%2;
else if (ch=='j') t1++;
else if (ch=='u') t2++;
else if ((ch=='k') && t1-1>0) t1--;
else if ((ch=='i') && t2-1>0) t2--;
else if (ch=='h') dali=(dali+1)%2;
}
void reset(){
system("cls"); color(7);
gotoxy(2,30); printf("控制方向：w/a/s/d");
gotoxy(4,30); printf("控制你的速度：j/k");
gotoxy(6,30); printf("控制怪物速度：u/i");
x=22; y=13;
x1=x2=x3=x4=14; y1=11; y2=12; y3=14; y4=15;
now=607; now1=389; now2=390; now3=392; now4=393;
for (int k=0; k<=n; k++){
int i=k/27,j=k%27;
gotoxy(i,j);
if (changdi[i][j]==1){color(7); printf("·");}
else if (!changdi[i][j]){color(1); printf("■");}
if (j=26){gotoxy(i,27); color(7); printf("%d",i);}
}
gotoxy(0,0);
gotoxy(x,y); color(14); printf("●");
gotoxy(x1,y1); color(4); printf("◆");
gotoxy(x2,y2); color(5); printf("◆");
gotoxy(x3,y3); color(3); printf("◆");
gotoxy(x4,y4); color(2); printf("◆");
fangx=0; T1=T2=guaitimer=0; t1=75; t2=100;stopped=0; fenshu=0; guozi=237; g1=g2=g3=g4=0; dali=0;
gotoxy(14,30); printf(" ");
}
void move1(){
int xx,yy;
xx=x+fxfx[nextfx][0]; yy=y+fxfx[nextfx][1];
if (changdi[xx][yy]){
if (changdi[xx][yy]==1){fenshu+=1; changdi[xx][yy]=2;}
color(14);
gotoxy(x,y); printf(" ");
gotoxy(xx,yy);
if(!dali)printf("●"); else printf("★");
now=x*27+y; x=xx; y=yy;
fangx=nextfx;
}
else{
if (x==13 && y==0 && fangx==0){xx=x; yy=26;}
else if (x==13 && y==26 && fangx==2){xx=x; yy=0;}
else{xx=x+fxfx[fangx][0]; yy=y+fxfx[fangx][1];}
if (changdi[xx][yy]){
if (changdi[xx][yy]==1){fenshu+=1; changdi[xx][yy]=2;}
color(14);
gotoxy(x,y); printf(" ");
gotoxy(xx,yy); if (!dali) printf("●"); else printf("★");
now=x*27+y; x=xx; y=yy;
}
}
color(7);
}
void move2(){
int haha,minhaha,xx,yy,chi=0;
if (g1){
minhaha=2147483647;
if (now1%27==0 | now1%27==26) haha=last1;
else if (!dali){
for (int i=0; i<=3; i++)
if (changdi[(now1+fx[i])/27][(now1+fx[i])%27] && i!=last1 && minhaha>dis[now1+fx[i]][now])
{minhaha=dis[now1+fx[i]][now]; haha=i;}
}
else{
minhaha=-minhaha;
for (int i=0; i<=3; i++)
if (changdi[(now1+fx[i])/27][(now1+fx[i])%27] && i!=last1 && minhaha<dis[now1+fx[i]][now])
{minhaha=dis[now1+fx[i]][now]; haha=i;}
}
xx=now1/27; yy=now1%27; gotoxy(xx,yy);
if (changdi[xx][yy]==1) printf("·");else printf(" ");
now1+=fx[haha]; last1=(haha+2)%4;
xx=now1/27; yy=now1%27; gotoxy(xx,yy); color(4); printf("◆"); color(7);
if (xx==x && yy==y){
if (!dali) chi+=1;
else {
guozi+=50;
fenshu+=50;
last1=0;
gotoxy(now1/27,now1%27);
if (changdi[now1/27][now1%27]==1) printf("·"); else printf(" ");
now1=389;
}
}
}
if (g2){
int k;
minhaha=2147483647;
if (fangx==0 | fangx==2){
k=y+(fxfx[fangx][1])*3;
while (k>25 | !changdi[x][k]) k--;
while (k<1 | !changdi[x][k]) k++;
} else{
k=x+(fxfx[fangx][0])*3;
while (k>28 | !changdi[k][y]) k--;
while (k<1 | !changdi[k][y]) k++;
}
if (fangx==0 | fangx==2) k=x*27+k; else k=k*27+y;
if (now2%27==0 | now2%27==26) haha=last2;
else if (!dali)
for (int i=0; i<=3; i++){
if (changdi[(now2+fx[i])/27][(now2+fx[i])%27] && i!=last2 && minhaha>dis[now2+fx[i]][k])
{minhaha=dis[now2+fx[i]][k]; haha=i;}
}
else{
minhaha=-minhaha;
for (int i=0; i<=3; i++){
if (changdi[(now2+fx[i])/27][(now2+fx[i])%27] && i!=last2 && minhaha<dis[now2+fx[i]][k])
{minhaha=dis[now2+fx[i]][k]; haha=i;}
}
}
xx=now2/27; yy=now2%27; gotoxy(xx,yy);
if (changdi[xx][yy]==1) printf("·");else printf(" ");
now2+=fx[haha]; last2=(haha+2)%4; gotoxy(18,30);
xx=now2/27; yy=now2%27; gotoxy(xx,yy); color(5); printf("◆"); color(7);
if (xx==x && yy==y){
if (!dali) chi+=1;
else {
guozi+=50;
fenshu+=50;
last2=0;
gotoxy(now2/27,now2%27);
if (changdi[now2/27][now2%27]==1) printf("·"); else printf(" ");
now2=390;
}
}
}
if (g3){
int k;
minhaha=2147483647;
if (fangx==0 | fangx==2){
k=y+(fxfx[(fangx+1)%4][1])*3;
while (k>25 | !changdi[x][k]) k--;
while (k<1 | !changdi[x][k]) k++;
} else{
k=x+(fxfx[(fangx+1)%4][0])*3;
while (k>28 | !changdi[k][y]) k--;
while (k<1 | !changdi[k][y]) k++;
}
if (fangx==0 | fangx==2) k=x*27+k; else k=k*27+y;
if (now3%27==0 | now3%27==26) haha=last3;
else if (!dali)
for (int i=0; i<=3; i++){
if (changdi[(now3+fx[i])/27][(now3+fx[i])%27] && i!=last3 && minhaha>dis[now3+fx[i]][k])
{minhaha=dis[now3+fx[i]][k]; haha=i;}
}
else {
minhaha=-minhaha;
for (int i=0; i<=3; i++){
if (changdi[(now3+fx[i])/27][(now3+fx[i])%27] && i!=last3 && minhaha<dis[now3+fx[i]][k])
{minhaha=dis[now3+fx[i]][k]; haha=i;}
}
}
xx=now3/27; yy=now3%27; gotoxy(xx,yy);
if (changdi[xx][yy]==1) printf("·");else printf(" ");
now3+=fx[haha]; last3=(haha+2)%4; gotoxy(18,30);
xx=now3/27; yy=now3%27;
gotoxy(xx,yy); color(3); printf("◆"); color(7);
if (xx==x && yy==y){
if (!dali) chi+=1;
else {
guozi+=50;
fenshu+=50;
last3=0;
gotoxy(now3/27,now3%27);
if (changdi[now3/27][now3%27]==1) printf("·"); else printf(" ");
now3=341;
}
}
}
if (chi) beichi++;
}
int main(){
SetConsoleTitle("吃豆人");
begin();
int jixu=1;
reset();
string bb[4]={"●","①","②","③"}; color(7);
gotoxy(12,12); printf("倒计时"); color(12);
for (int i=3; i>=0; i--){if (i==0) color(11);gotoxy(13,13); cout<<bb[i]; Sleep(1000);}
gotoxy(12,12); printf(" "); gotoxy(13,13); printf(" "); color(7);
while (!f){
Sleep(1);
gotoxy(10,30); printf("得分：%d ",fenshu);
gotoxy(8,30); printf("怪物速度：%d ",300-t2);
gotoxy(9,30); printf("你的速度：%d ",300-t1);
gotoxy(15,30); printf("被吃次数：%d ",beichi);
if (kbhit()) shuru();
if (stopped) continue;
T1=(T1+1)%t1; T2=(T2+1)%t2;
if (T1%t1==0 && now+fx[fangx]>0 && now+fx[fangx]<n) move1();
if (T2%t2==0){
if (guaitimer<=8){
if (guaitimer==0) g1=1;
if (guaitimer==8) g2=1;
guaitimer++;
}
if (!g3 && fenshu>=30) g3=1;
move2();
}
if (fenshu==guozi)f=2;
}
if (f=2) {
Sleep(3000);
system("cls");
printf("恭喜你吃完了！\n你一共被怪物吃掉了 %d 次",beichi);
Sleep(3000);
char ying;
scanf("%c",&ying);
}
}
3. 主要问题列表
（1）语法错误：reset() 函数中的 if (j=26) 应为 if (j26)，否则会无条件执行赋值，导致地图显示异常。主循环末尾的 if (f=2) 应为 if (f2)，否则胜利条件永远成立。
（2）数组越界风险：虽然已有 stopped 变量，但仅跳过了移动逻辑，计时器 T1、T2 仍在递增，导致暂停结束后怪物可能“瞬移”。应让计时器也暂停。
（3）缺少中途退出功能：游戏没有提供主动退出键，只能通过吃完所有豆子或强制关闭窗口结束。
（4）怪物 AI 中的死循环可能：在 move2() 中，部分 while 循环（如 while (k>25 | !changdi[x][k]) k--;）可能因条件永不满足而陷入死循环，应增加边界保护。
4. 代码修改
（1）语法错误修改
点击查看代码
// reset() 中原有：
if (j=26) { gotoxy(i,27); color(7); printf("%d",i); }
// 改为：
if (j == 26) { gotoxy(i,27); color(7); printf("%d",i); }
（2）数组越界风险修改
点击查看代码
if (g1) {
// ...
for (int i = 0; i <= 3; i++) {
int next = now1 + fx[i];
if (next >= 0 && next <= n && changdi[next/27][next%27] && i != last1) {
if (!dali && minhaha > dis[next][now]) { minhaha = dis[next][now]; haha = i; }
else if (dali && minhaha < dis[next][now]) { minhaha = dis[next][now]; haha = i; }
}
}
// ...
}
（3）添加暂停和退出功能
点击查看代码
if (stopped) {
// 暂停时仍可响应输入，但不更新计时器
continue;
}
T1 = (T1 + 1) % t1;
T2 = (T2 + 1) % t2;
点击查看代码
void shuru() {
char ch = getch();
if (ch == 'a') ... // 原有方向处理
else if (ch == 's') ...
else if (ch == 'd') ...
else if (ch == 'w') ...
else if (ch == '0') stopped = (stopped + 1) % 2;
else if (ch == 'q' || ch == 27) f = 1; // 按 q 或 ESC 退出
// 其他原有调试键保留...
}
（5）避免死循环
点击查看代码
int limit = 100;
while (k > 25 || !changdi[x][k]) {
k--;
if (--limit <= 0) break;
}
（6）最终完整代码
点击查看代码
#include <cstdio>
#include <iostream>
#include <ctime>
#include <conio.h>
#include <windows.h>
#include <cstdlib>
#include <cstring>
using namespace std;
const int n=809;
struct Point {int x,y;};
int dali;
int fx[4]={-1,27,1,-27};
int fxfx[4][2]={{0,-1},{1,0},{0,1},{-1,0}};
int dis[1000][1000];
int changdi[30][27]={
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,1,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,1,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0},
{0,1,1,1,1,1,1,0,0,1,1,1,1,0,1,1,1,1,0,0,1,1,1,1,1,1,0},
{0,0,0,0,0,0,1,0,0,0,0,0,2,0,2,0,0,0,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,0,0,0,2,0,2,0,0,0,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,2,2,2,2,2,2,2,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,3,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,3,3,3,3,3,0,2,0,0,1,0,0,0,0,0,0},
{2,2,2,2,2,2,1,2,2,2,0,3,3,3,3,3,0,2,2,2,1,2,2,2,2,2,2},
{0,0,0,0,0,0,1,0,0,2,0,3,3,3,3,3,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,2,2,2,2,2,2,2,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0},
{0,1,1,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,0},
{0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0},
{0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0},
{0,1,1,1,1,1,1,0,0,1,1,1,1,0,1,1,1,1,0,0,1,1,1,1,1,1,0},
{0,1,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,1,0},
{0,1,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,1,0},
{0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
};
int x,x1,x2,x3,x4,y,y1,y2,y3,y4;
int now,now1,now2,now3,now4;
int g1,g2,g3,g4;
int fangx,nextfx,last1,last2,last3,last4;
int fenshu,guozi,guaitimer;
int T1,T2,t1,t2,stopped, f=0;
int beichi;
void color(int a)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),a);
}
void gotoxy(int x,int y)
{
COORD pos;
pos.X=2*y;
pos.Y=x;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);
}
void begin(){
system("cls");
color(11); printf(" ★"); color(10); printf("吃豆人"); color(11); printf("★\n\n"); color(7);
printf(" 正在初始化，请耐心等待");
for (int i=0; i<=n; i++) for (int j=1; j<=n; j++) dis[i][j]=900;
for (int i=0; i<=n; i++){
for (int j=0; j<=3; j++){
if (i+fx[j]>=0 && i+fx[j]<=n){
int k=i+fx[j],xx=k/27,yy=k%27,kk;
if (changdi[i/27][i%27] && changdi[xx][yy]) dis[i][k]=kk=1;
}
}
}
for (int k=0; k<=n; k++)if(changdi[k/27][k%27]){
for (int i=0; i<=n; i++)if(changdi[i/27][i%27])
for (int j=0; j<=n; j++)if(changdi[j/27][j%27])
if (dis[i][j]>dis[i][k]+dis[k][j]) dis[i][j]=dis[i][k]+dis[k][j];
if (k%80==0){color (13); gotoxy(3,0); printf("│");}
if (k%80==20){color(13); gotoxy(3,0); printf("╱");}
if (k%80==40){color(13); gotoxy(3,0); printf("─");}
if (k%80==60){color(13); gotoxy(3,0); printf("╲");}
if (k%80==0){color (13); gotoxy(3,12); printf("│");}
if (k%80==20){color(13); gotoxy(3,12); printf("╱");}
if (k%80==40){color(13); gotoxy(3,12); printf("─");}
if (k%80==60){color(13); gotoxy(3,12); printf("╲");}
if (k%60==0){color(11); gotoxy(5,k/60); printf("●");}
}
}
void shuru(){
char ch=getch();
if (ch=='a') if (changdi[x+fxfx[0][0]][y+fxfx[0][1]]==1||changdi[x+fxfx[0][0]][y+fxfx[0][1]]==2) fangx=nextfx=0; else nextfx=0;
else if (ch=='s') if (changdi[x+fxfx[1][0]][y+fxfx[1][1]]==1||changdi[x+fxfx[1][0]][y+fxfx[1][1]]==2) fangx=nextfx=1; else nextfx=1;
else if (ch=='d') if (changdi[x+fxfx[2][0]][y+fxfx[2][1]]==1||changdi[x+fxfx[2][0]][y+fxfx[2][1]]==2) fangx=nextfx=2; else nextfx=2;
else if (ch=='w') if (changdi[x+fxfx[3][0]][y+fxfx[3][1]]==1||changdi[x+fxfx[3][0]][y+fxfx[3][1]]==2) fangx=nextfx=3; else nextfx=3;
else if (ch=='t'||ch=='T') stopped=(stopped+1)%2;
else if (ch=='j') t1++;
else if (ch=='u') t2++;
else if ((ch=='k') && t1-1>0) t1--;
else if ((ch=='i') && t2-1>0) t2--;
else if (ch=='h') dali=(dali+1)%2;
else if (ch=='q'||ch=='Q'||ch==27) f=1;
}
void reset(){
system("cls"); color(7);
gotoxy(2,30); printf("控制方向：w/a/s/d");
gotoxy(4,30); printf("控制你的速度：j/k");
gotoxy(6,30); printf("控制怪物速度：u/i");
gotoxy(7,30); printf("暂停：t 退出：q");
x=22; y=13;
x1=x2=x3=x4=14; y1=11; y2=12; y3=14; y4=15;
now=607; now1=389; now2=390; now3=392; now4=393;
for (int k=0; k<=n; k++){
int i=k/27,j=k%27;
gotoxy(i,j);
if (changdi[i][j]==1){color(7); printf("·");}
else if (!changdi[i][j]){color(1); printf("■");}
if (j==26){gotoxy(i,27); color(7); printf("%d",i);}
}
gotoxy(0,0);
gotoxy(x,y); color(14); printf("●");
gotoxy(x1,y1); color(4); printf("◆");
gotoxy(x2,y2); color(5); printf("◆");
gotoxy(x3,y3); color(3); printf("◆");
gotoxy(x4,y4); color(2); printf("◆");
fangx=0; T1=T2=guaitimer=0; t1=75; t2=100;stopped=0; fenshu=0; guozi=237; g1=g2=g3=g4=0; dali=0;
gotoxy(14,30); printf(" ");
}
void move1(){
int xx,yy;
xx=x+fxfx[nextfx][0]; yy=y+fxfx[nextfx][1];
if (changdi[xx][yy]){
if (changdi[xx][yy]==1){fenshu+=1; changdi[xx][yy]=2;}
color(14);
gotoxy(x,y); printf(" ");
gotoxy(xx,yy);
if(!dali)printf("●"); else printf("★");
now=x*27+y; x=xx; y=yy;
fangx=nextfx;
}
else{
if (x==13 && y==0 && fangx==0){xx=x; yy=26;}
else if (x==13 && y==26 && fangx==2){xx=x; yy=0;}
else{xx=x+fxfx[fangx][0]; yy=y+fxfx[fangx][1];}
if (changdi[xx][yy]){
if (changdi[xx][yy]==1){fenshu+=1; changdi[xx][yy]=2;}
color(14);
gotoxy(x,y); printf(" ");
gotoxy(xx,yy); if (!dali) printf("●"); else printf("★");
now=x*27+y; x=xx; y=yy;
}
}
color(7);
}
void move2(){
int haha,minhaha,xx,yy,chi=0;
if (g1){
minhaha=2147483647;
if (now1%27==0 || now1%27==26) haha=last1;
else if (!dali){
for (int i=0; i<=3; i++){
int next = now1+fx[i];
if (next>=0 && next<=n && changdi[next/27][next%27] && i!=last1 && minhaha>dis[next][now])
{minhaha=dis[next][now]; haha=i;}
}
}
else{
minhaha=-minhaha;
for (int i=0; i<=3; i++){
int next = now1+fx[i];
if (next>=0 && next<=n && changdi[next/27][next%27] && i!=last1 && minhaha<dis[next][now])
{minhaha=dis[next][now]; haha=i;}
}
}
xx=now1/27; yy=now1%27; gotoxy(xx,yy);
if (changdi[xx][yy]==1) printf("·");else printf(" ");
now1+=fx[haha]; last1=(haha+2)%4;
xx=now1/27; yy=now1%27; gotoxy(xx,yy); color(4); printf("◆"); color(7);
if (xx==x && yy==y){
if (!dali) chi+=1;
else {
guozi+=50;
fenshu+=50;
last1=0;
gotoxy(now1/27,now1%27);
if (changdi[now1/27][now1%27]==1) printf("·"); else printf(" ");
now1=389;
}
}
}
if (g2){
int k;
minhaha=2147483647;
if (fangx==0 || fangx==2){
k=y+(fxfx[fangx][1])*3;
while (k>25 || !changdi[x][k]) {k--; if (k<0) break;}
while (k<1 || !changdi[x][k]) {k++; if (k>26) break;}
} else{
k=x+(fxfx[fangx][0])*3;
while (k>28 || !changdi[k][y]) {k--; if (k<0) break;}
while (k<1 || !changdi[k][y]) {k++; if (k>29) break;}
}
if (fangx==0 || fangx==2) k=x*27+k; else k=k*27+y;
if (now2%27==0 || now2%27==26) haha=last2;
else if (!dali)
for (int i=0; i<=3; i++){
int next = now2+fx[i];
if (next>=0 && next<=n && changdi[next/27][next%27] && i!=last2 && minhaha>dis[next][k])
{minhaha=dis[next][k]; haha=i;}
}
else{
minhaha=-minhaha;
for (int i=0; i<=3; i++){
int next = now2+fx[i];
if (next>=0 && next<=n && changdi[next/27][next%27] && i!=last2 && minhaha<dis[next][k])
{minhaha=dis[next][k]; haha=i;}
}
}
xx=now2/27; yy=now2%27; gotoxy(xx,yy);
if (changdi[xx][yy]==1) printf("·");else printf(" ");
now2+=fx[haha]; last2=(haha+2)%4; gotoxy(18,30);
xx=now2/27; yy=now2%27; gotoxy(xx,yy); color(5); printf("◆"); color(7);
if (xx==x && yy==y){
if (!dali) chi+=1;
else {
guozi+=50;
fenshu+=50;
last2=0;
gotoxy(now2/27,now2%27);
if (changdi[now2/27][now2%27]==1) printf("·"); else printf(" ");
now2=390;
}
}
}
if (g3){
int k;
minhaha=2147483647;
if (fangx==0 || fangx==2){
k=y+(fxfx[(fangx+1)%4][1])*3;
while (k>25 || !changdi[x][k]) {k--; if (k<0) break;}
while (k<1 || !changdi[x][k]) {k++; if (k>26) break;}
} else{
k=x+(fxfx[(fangx+1)%4][0])*3;
while (k>28 || !changdi[k][y]) {k--; if (k<0) break;}
while (k<1 || !changdi[k][y]) {k++; if (k>29) break;}
}
if (fangx==0 || fangx==2) k=x*27+k; else k=k*27+y;
if (now3%27==0 || now3%27==26) haha=last3;
else if (!dali)
for (int i=0; i<=3; i++){
int next = now3+fx[i];
if (next>=0 && next<=n && changdi[next/27][next%27] && i!=last3 && minhaha>dis[next][k])
{minhaha=dis[next][k]; haha=i;}
}
else {
minhaha=-minhaha;
for (int i=0; i<=3; i++){
int next = now3+fx[i];
if (next>=0 && next<=n && changdi[next/27][next%27] && i!=last3 && minhaha<dis[next][k])
{minhaha=dis[next][k]; haha=i;}
}
}
xx=now3/27; yy=now3%27; gotoxy(xx,yy);
if (changdi[xx][yy]==1) printf("·");else printf(" ");
now3+=fx[haha]; last3=(haha+2)%4; gotoxy(18,30);
xx=now3/27; yy=now3%27;
gotoxy(xx,yy); color(3); printf("◆"); color(7);
if (xx==x && yy==y){
if (!dali) chi+=1;
else {
guozi+=50;
fenshu+=50;
last3=0;
gotoxy(now3/27,now3%27);
if (changdi[now3/27][now3%27]==1) printf("·"); else printf(" ");
now3=341;
}
}
}
if (chi) beichi++;
}
int main(){
SetConsoleTitle("吃豆人");
begin();
int jixu=1;
reset();
string bb[4]={"●","①","②","③"}; color(7);
gotoxy(12,12); printf("倒计时"); color(12);
for (int i=3; i>=0; i--){if (i==0) color(11);gotoxy(13,13); cout<<bb[i]; Sleep(1000);}
gotoxy(12,12); printf(" "); gotoxy(13,13); printf(" "); color(7);
while (!f){
Sleep(1);
gotoxy(10,30); printf("得分：%d ",fenshu);
gotoxy(8,30); printf("怪物速度：%d ",300-t2);
gotoxy(9,30); printf("你的速度：%d ",300-t1);
gotoxy(15,30); printf("被吃次数：%d ",beichi);
if (kbhit()) shuru();
if (stopped) continue;
T1=(T1+1)%t1; T2=(T2+1)%t2;
if (T1%t1==0 && now+fx[fangx]>0 && now+fx[fangx]<n) move1();
if (T2%t2==0){
if (guaitimer<=8){
if (guaitimer==0) g1=1;
if (guaitimer==8) g2=1;
guaitimer++;
}
if (!g3 && fenshu>=30) g3=1;
move2();
}
if (fenshu==guozi)f=2;
}
if (f==2) {
Sleep(3000);
system("cls");
printf("恭喜你吃完了！\n你一共被怪物吃掉了 %d 次",beichi);
Sleep(3000);
char ying;
scanf("%c",&ying);
}
else if (f==1) {
system("cls");
printf("游戏已退出。\n");
Sleep(2000);
}
return 0;
}
5. 测试截图
6. 总结
本次修改耗时最久的是理解原代码的混乱结构和晦涩逻辑，尤其是怪物移动算法中复杂的坐标映射（fx 数组）和路径搜索依赖的 dis 矩阵，以及散布在多个函数中的全局变量交互；难点在于不改变原有变量名的前提下修复语法错误（、添加数组越界保护、避免怪物死循环，同时精准插入暂停和退出功能而不破坏原有计时器机制；这体现了逆向软件工程的核心挑战——从无注释、命名随意、逻辑耦合的遗留代码中还原设计意图，并以最小侵入方式增强功能，需要在理解历史决策（如用 809 表示总格子数、用 fx 表示四方向位移）的基础上进行安全修改，最终通过调整界面布局确保用户可见性，整个过程强调了对既有代码的敬畏与渐进式优化。
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