本篇随笔为软件工程实践第一次课，目的是找他人的程序学习并改善优化
本来想找Java版的贪吃蛇，但因为系统重装eclipse暂时无法使用，就先学习C语言版的
贪吃蛇的思路有五部步
1.地图
地图含简单, 利用char的二维数组, 将外围一圈设置为城墙, 我使用的是’#’代表墙.
2.食物的产生
利用随机函数(rand())产生随机食
4.蛇的移动
利用上下左右或者wasd空着蛇的走位. 以及当蛇每走一步就利用 system(“cls”)清屏, 重新打印, 模拟蛇的移动.
物的坐标, 该坐标的值不能与墙重合, 不能与蛇身重合. 若重合的话, 重新找一对xy的值. 食物我这里用的是’O’表示.
3. 构造一条蛇
使用另一个int类型的二维数组,为什么用int后面讲.用’Q’代表蛇脑袋, ‘a’代表蛇身体, 开始时, 初始化到某以位置上.
5. 游戏结束
当蛇撞墙, 以及咬到自己的身体时候游戏结束
源码
#include <iostream>
#include <iomanip>
using namespace std;
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <time.h>
#include <conio.h>
//０ ｃｏｏｒｄ．Ｘ
#define WALL "█" //┏━━━━━━━━━━━━━━━━━━━━━━━━━━→
#define MENU_WALL "※" //┃
#define BLANK " " //┃
#define UP "∧" //┃
#define DOWN "∨" //┃
#define LEFT "＜" //┃
#define RIGHT "＞" //┃
#define BODY "◆" //┃ 控制台光标
#define FOOD "◎" //┃
#define STARTWALLX 0 //┃ 坐标轴
#define STARTWALLY 0 //┃
#define FINALWALLY 81 //┃
#define FINALWALLX 24 //┃
#define STARTMENUY 20 //┃
#define FINALMENUY 61 //┃
#define STARTMENUX 5 //┃
#define FINALMENUX 18 //┃
//↓ｃｏｏｒｄ．Ｙ
#define gotoxy(XXX,YYY); coord.Y=XXX; coord.X=YYY; SetConsoleCursorPosition(hout,coord); // 光标移动至 XXX行 YYY列
#define setcolor(FC,BGC); SetConsoleTextAttribute(hout,FC|BGC); //改变颜色
HANDLE hout=GetStdHandle(STD_OUTPUT_HANDLE);
COORD coord,head,tail,food;
char map[25][41][3],dir[25][41][3]; //[x 0..24][y 0..40][]
char game_over; //0=活着,1=撞了
int wait_time=0,length;
void InitSnakeWall();
void MakeFood();
void PrintMap();
void PrintMenu();
void PrintSelected();
void PrintOther();
void ControlMenu();
void ControlMove();
void MoveSnake();
void MoveTail();
void HideCursor();
int main(int argc, char** argv)
{
setcolor(7,0);
HideCursor();
while(1)
{
system("cls");
srand((int)time(NULL));
InitSnakeWall();
MakeFood();
PrintMap();
PrintOther();
PrintMenu();
ControlMenu();
PrintMap();
game_over=0;
while (!game_over)
{
ControlMove();
MoveSnake();
PrintOther();
if (game_over)
{
ControlMove(); //撞死前的补救
MoveSnake();
if (game_over)
{
cout<<'a'; //发出声音
MessageBox(NULL,"最…原始的…贪吃蛇… →_→ 可是你输了","贪吃蛇",MB_OK);
}
}
}
}
return 0;
}
void HideCursor() //隐藏光标
{
CONSOLE_CURSOR_INFO cursor_info = {1, 0};
SetConsoleCursorInfo(hout,&cursor_info);
}
void ControlMove()
{
if (game_over) //延时等待
{
Sleep(80);
if (kbhit()) goto re;
Sleep(80);
if (kbhit()) goto re;
Sleep(80);
if (kbhit()) goto re;
Sleep(80);
if (kbhit()) goto re;
Sleep(80);
if (kbhit()) goto re;
}
else
Sleep((wait_time+0.5)*40);
if (kbhit())
{
re: switch(getch())
{
case 'w':
case 'W':
if
(strcmp(map[head.X][head.Y],DOWN)&&(!strcmp(map[head.X-1][head.Y],BLANK)||(!strcmp(map[head.X-1][head.Y],FOOD))))
strcpy(map[head.X][head.Y],UP);
break;
case 's':
case 'S':
if
(strcmp(map[head.X][head.Y],UP)&&(!strcmp(map[head.X+1][head.Y],BLANK)||(!strcmp(map[head.X+1][head.Y],FOOD))))
strcpy(map[head.X][head.Y],DOWN);
break;
case 'a':
case 'A':
if
(strcmp(map[head.X][head.Y],RIGHT)&&(!strcmp(map[head.X][head.Y-1],BLANK)||(!strcmp(map[head.X][head.Y-1],FOOD))))
strcpy(map[head.X][head.Y],LEFT);
break;
case 'd':
case 'D':
if
(strcmp(map[head.X][head.Y],LEFT)&&(!strcmp(map[head.X][head.Y+1],BLANK)||(!strcmp(map[head.X][head.Y+1],FOOD))))
strcpy(map[head.X][head.Y],RIGHT);
break;
case ' ':
PrintMenu();
ControlMenu();
PrintMap();
break;
case 0xE0: //方向键
switch(getch())
{
case 0x48: //↑
if
(strcmp(map[head.X][head.Y],DOWN)&&(!strcmp(map[head.X-1][head.Y],BLANK)||(!strcmp(map[head.X-1][head.Y],FOOD))))
strcpy(map[head.X][head.Y],UP);
break;
case 0x50: //↓
if
(strcmp(map[head.X][head.Y],UP)&&(!strcmp(map[head.X+1][head.Y],BLANK)||(!strcmp(map[head.X+1][head.Y],FOOD))))
strcpy(map[head.X][head.Y],DOWN);
break;
case 0x4b: //←
if
(strcmp(map[head.X][head.Y],RIGHT)&&(!strcmp(map[head.X][head.Y-1],BLANK)||(!strcmp(map[head.X][head.Y-1],FOOD))))
strcpy(map[head.X][head.Y],LEFT);
break;
case 0x4d: //→
if
(strcmp(map[head.X][head.Y],LEFT)&&(!strcmp(map[head.X][head.Y+1],BLANK)||(!strcmp(map[head.X][head.Y+1],FOOD))))
strcpy(map[head.X][head.Y],RIGHT);
break;
}
}
}
}
void MoveSnake()
{
game_over=0;
gotoxy(head.X,head.Y*2);
if (!strcmp(map[head.X][head.Y],UP))
if (!strcmp(map[head.X-1][head.Y],BLANK)||!strcmp(map[head.X-1][head.Y],FOOD))
{
cout<<BODY;
strcpy(dir[head.X][head.Y],UP);
if (!strcmp(map[head.X][head.Y],map[food.X][food.Y]))
MakeFood();
else
MoveTail();
strcpy(map[head.X--][head.Y],BODY);
strcpy(map[head.X][head.Y],UP);
gotoxy(head.X,head.Y*2);
cout<<UP;
}
else game_over=1;
else
if (!strcmp(map[head.X][head.Y],DOWN))
if (!strcmp(map[head.X+1][head.Y],BLANK)||!strcmp(map[head.X+1][head.Y],FOOD))
{
cout<<BODY;
strcpy(dir[head.X][head.Y],DOWN);
if (!strcmp(map[head.X][head.Y],map[food.X][food.Y]))
MakeFood();
else
MoveTail();
strcpy(map[head.X++][head.Y],BODY);
strcpy(map[head.X][head.Y],DOWN);
gotoxy(head.X,head.Y*2);
cout<<DOWN;
}
else game_over=1;
else
if (!strcmp(map[head.X][head.Y],RIGHT))
if (!strcmp(map[head.X][head.Y+1],BLANK)||!strcmp(map[head.X][head.Y+1],FOOD))
{
cout<<BODY;
strcpy(dir[head.X][head.Y],RIGHT);
if (!strcmp(map[head.X][head.Y],map[food.X][food.Y]))
MakeFood();
else
MoveTail();
strcpy(map[head.X][head.Y++],BODY);
strcpy(map[head.X][head.Y],RIGHT);
gotoxy(head.X,head.Y*2);
cout<<RIGHT;
}
else game_over=1;
else
if (!strcmp(map[head.X][head.Y],LEFT))
if (!strcmp(map[head.X][head.Y-1],BLANK)||!strcmp(map[head.X][head.Y-1],FOOD))
{
cout<<BODY;
strcpy(dir[head.X][head.Y],LEFT);
if (!strcmp(map[head.X][head.Y],map[food.X][food.Y]))
MakeFood();
else
MoveTail();
strcpy(map[head.X][head.Y--],BODY);
strcpy(map[head.X][head.Y],LEFT);
gotoxy(head.X,head.Y*2);
cout<<LEFT;
}
else game_over=1;
gotoxy(FINALWALLX+1,0);
}
void MoveTail()
{
gotoxy(tail.X,tail.Y*2);
cout<<BLANK;
if (!strcmp(dir[tail.X][tail.Y],UP))
{
strcpy(map[tail.X][tail.Y],BLANK);
strcpy(dir[tail.X--][tail.Y],BLANK);
}
else
if (!strcmp(dir[tail.X][tail.Y],DOWN))
{
strcpy(dir[tail.X][tail.Y],BLANK);
strcpy(map[tail.X++][tail.Y],BLANK);
}
else
if (!strcmp(dir[tail.X][tail.Y],LEFT))
{
strcpy(dir[tail.X][tail.Y],BLANK);
strcpy(map[tail.X][tail.Y--],BLANK);
}
else
if (!strcmp(dir[tail.X][tail.Y],RIGHT))
{
strcpy(dir[tail.X][tail.Y],BLANK);
strcpy(map[tail.X][tail.Y++],BLANK);
}
gotoxy(FINALWALLX+1,0);
}
void PrintSelected()
{
setcolor(12,0);
switch(wait_time)
{
case 0:
gotoxy(STARTMENUX+4,STARTMENUY+2);
cout<<" 极速行进 ";
setcolor(7,0);
gotoxy(STARTMENUX+6,STARTMENUY+2);
cout<<" 快速行进 ";
break;
case 1:
gotoxy(STARTMENUX+6,STARTMENUY+2);
cout<<" 快速行进 ";
setcolor(7,0);
gotoxy(STARTMENUX+4,STARTMENUY+2);
cout<<" 极速行进 ";
gotoxy(STARTMENUX+8,STARTMENUY+2);
cout<<" 慢速行进 ";
break;
case 2:
gotoxy(STARTMENUX+8,STARTMENUY+2);
cout<<" 慢速行进 ";
setcolor(7,0);
gotoxy(STARTMENUX+6,STARTMENUY+2);
cout<<" 快速行进 ";
gotoxy(STARTMENUX+10,STARTMENUY+2);
cout<<" 龟速行进 ";
break;
case 3:
gotoxy(STARTMENUX+10,STARTMENUY+2);
cout<<" 龟速行进 ";
setcolor(7,0);
gotoxy(STARTMENUX+8,STARTMENUY+2);
cout<<" 慢速行进 ";
break;
}
gotoxy(FINALWALLX+1,0);
}
void ControlMenu()
{
char c=0;
while (c!=' ')
{
switch(c)
{
case 'w':
case 'W':
case 0x48:
if (wait_time>0)
{
wait_time--;
PrintSelected();
}
break;
case 's':
case 'S':
case 0x50:
if (wait_time<3)
{
wait_time++;
PrintSelected();
}
break;
}
c=getch();
}
}
void PrintMenu()
{
int i;
setcolor(11,0);
gotoxy(STARTMENUX,STARTMENUY);
for (i=1;i<=20;i++) cout<<MENU_WALL;
for (i=5;i<=17;i++)
{
gotoxy(i,STARTMENUY);
cout<<MENU_WALL;
gotoxy(i,FINALMENUY-1);
cout<<MENU_WALL;
}
gotoxy(FINALMENUX,STARTMENUY);
for (i=1;i<=21;i++) cout<<MENU_WALL;
setcolor(7,0);
// 长度线"--------------------------------------"
gotoxy(STARTMENUX+1,STARTMENUY+2);
cout<<" 选 项 ";
gotoxy(STARTMENUX+2,STARTMENUY+2);
cout<<" [ ＷＳ或↑↓键选择 空格键确定 ] ";
gotoxy(STARTMENUX+3,STARTMENUY+2);
cout<<"--------------------------------------";
gotoxy(STARTMENUX+4,STARTMENUY+2);
cout<<" 极速行进 "; //wait_time==0
gotoxy(STARTMENUX+5,STARTMENUY+2);
cout<<" ";
gotoxy(STARTMENUX+6,STARTMENUY+2);
cout<<" 快速行进 "; //wait_time==1
gotoxy(STARTMENUX+7,STARTMENUY+2);
cout<<" ";
gotoxy(STARTMENUX+8,STARTMENUY+2);
cout<<" 慢速行进 "; //wait_time==2
gotoxy(STARTMENUX+9,STARTMENUY+2);
cout<<" ";
gotoxy(STARTMENUX+10,STARTMENUY+2);
cout<<" 龟速行进 "; //wait_time==3
gotoxy(STARTMENUX+11,STARTMENUY+2);
cout<<"--------------------------------------";
gotoxy(STARTMENUX+12,STARTMENUY+2);
cout<<" 按空格键打开/关闭菜单 按空格键暂停 ";
PrintSelected();
}
void InitSnakeWall()
{
int x,y;
for (x=0;x<=24;x++)
for (y=0;y<=40;y++)
{
strcpy(dir[x][y],BLANK);
strcpy(map[x][y],BLANK);
}
for (y=0;y<=40;y++)
{
strcpy(map[0][y],WALL);
strcpy(map[24][y],WALL);
}
for (x=0;x<=24;x++)
{
strcpy(map[x][0],WALL);
strcpy(map[x][40],WALL);
}
for (y=4;y<=10;y++)
{
strcpy(dir[4][y],RIGHT);
strcpy(map[4][y],BODY);
}
strcpy(map[4][y],RIGHT);
strcpy(dir[4][y],RIGHT);
head.X=tail.X=4;
head.Y=y; tail.Y=4;
length=7;
}
void PrintMap()
{
int i,j;
gotoxy(0,0);
for (i=0;i<=24;i++)
{
for (j=0;j<=40;j++)
cout<<map[i][j];
cout<<endl;
}
gotoxy(food.X,food.Y*2);
setcolor(14,0);
cout<<FOOD;
setcolor(7,0);
gotoxy(FINALWALLX+1,0)
}
void MakeFood()
{
food.X=rand()%23+1; //1--23
food.Y=rand()%39+1; //1--39
while (strcmp(map[food.X][food.Y],BLANK))
{
food.X=rand()%23+1;
food.Y=rand()%39+1;
}
strcpy(map[food.X][food.Y],FOOD);
gotoxy(food.X,food.Y*2);
setcolor(14,0);
cout<<FOOD;
setcolor(7,0);
gotoxy(FINALWALLX+1,0)
length++;
}
void PrintOther()
{
time_t timep;
time(&timep);
setcolor(10,0);
gotoxy(0,FINALWALLY+2);
cout<<"当前时间：";
gotoxy(1,FINALWALLY+2);
cout<<ctime(&timep);
gotoxy(3,FINALWALLY+2);
cout<<"速度："<<160-40*wait_time<<" ";
gotoxy(5,FINALWALLY+2);
cout<<"长度："<<length;
gotoxy(7,FINALWALLY+2);
cout<<"蛇头位置：";
gotoxy(8,FINALWALLY+2);
cout<<'<'<<setw(3)<<head.X<<','<<setw(3)<<head.Y<<'>';
gotoxy(10,FINALWALLY+2);
cout<<"蛇尾位置：";
gotoxy(11,FINALWALLY+2);
cout<<'<'<<setw(3)<<tail.X<<','<<setw(3)<<tail.Y<<'>';
gotoxy(13,FINALWALLY+2);
cout<<"食物位置：";
gotoxy(14,FINALWALLY+2);
cout<<'<'<<setw(3)<<food.X<<','<<setw(3)<<food.Y<<'>';
gotoxy(FINALWALLX+1,0);
setcolor(7,0);
}
开机界面
进行过程中
游戏结束
