Linux贪吃蛇

#include<stdio.h> #include<stdlib.h> #include<ncurses.h> #include<signal.h> #include<sys/time.h> #include<fcntl.h> #define DFL_SPEED 500 /* snake default speed */ #define _LEN 9 int maxx,maxy; int *psnk,*lsnk,*px,*py; void delay1s(int n) { int i,j; for(i=0;i<n;i++) for(j=0;j<n;j++); } void drawrect(int rows,int cols) { int begainrow,endrow,begaincol,endcol; int currow=0,curcol=0; int i,j; int count; begainrow=0; endrow =rows - 1; begaincol=0; endcol =cols - 1; currow=begainrow,curcol=begaincol; for(count=0;count<rows*cols;count++) { // 从左到右显示一行 for(;;) { mvaddch(currow,curcol,'A'); refresh(); delay1s(100); if(curcol != endcol) curcol ++; else { endcol--; break; } } // 从上倒下显示一竖行 for(;;) { if(currow != endrow) currow++; else { endrow--; break; } mvaddch(currow,curcol,'A'); refresh(); delay1s(3000); } // 从右到左显示一行 for(;;) { if(curcol != begaincol) curcol--; else { begaincol++; break; } mvaddch(currow,curcol,'A'); refresh(); delay1s(3000); } // 从下到上显示一行 for(;;) { if(currow != begainrow+1) currow--; else { begainrow++; break; } mvaddch(currow,curcol,'A'); refresh(); delay1s(3000); } } } void disppoint(int rows,int cols) { int currow,curcol; int c; currow = rand() % rows; curcol = rand() % cols; keypad(stdscr, true); } typedef struct food { int x; int y; }_FOOD; _FOOD fo; void showfo(int cols,int rows) //随机食物 { mvaddch(fo.y,fo.x,' '); fo.x=rand() % cols ; fo.y=rand() % rows ; mvaddch(fo.y,fo.x,'?'); } //蛇头是否碰到食物 int eat(int x,int y,int y1,int x1) { if(x ==x1 && y == y1) { showfo(maxy-1,maxx-1); //碰到食物响应代码 //mvaddch(1,1,'K'); return 1; } return 0; } void snkj(int len,int *p) //显示蛇身体，和清除蛇的尾巴 { int i; char g='@'; for(i=len;i>=0;i--) { if(i==len) { mvaddch(p[2*i],p[2*i+1],' '); } else { if(i==0) { mvaddch(p[2*i],p[2*i+1],'#'); continue; } mvaddch(p[2*i],p[2*i+1],g); //g++; } } } void ch2(int *x,int *y) //数据交换 { int temp; temp=*x; *x = *y; *y = temp; } void snkjmv(int x,int y,int *p,int len) //蛇数组移动 { int i; for(i=0;i<=len;i++) { ch2(&p[0],&p[2*(i+1)]); ch2(&p[1],&p[2*(i+1)+1]); } p[0]=x; p[1]=y; } void addsnkL(int x,int y,int *p,int len) //加蛇长度 { int i; for(i=2*len-1;i<=0;i=i-2) { p[i+2]=p[i]; p[i+1]=p[i-1]; } } int same(int a,int b) //比较2数是否相等 { if(a == b) return 1; return 0; } int samesnk(int *p,int len) //数组是否与第一个数组相等 { int i; for(i=1;i<len;i++) { if ( same(p[0],p[2*i]) == 1 && same(p[1],p[2*i+1]) == 1) //game over { return 1; } } return 0; } int set_ticker(int n_msecs) { struct itimerval new_timeset; long n_sec, n_usecs; n_sec = n_msecs / 1000; /* int second part */ n_usecs = (n_msecs % 1000) * 1000L; /* microsecond part */ new_timeset.it_interval.tv_sec = n_sec; /* set reload */ new_timeset.it_interval.tv_usec = n_usecs; new_timeset.it_value.tv_sec = n_sec; /* set new ticker value */ new_timeset.it_value.tv_usec = n_usecs; return setitimer(ITIMER_REAL, &new_timeset, NULL); } void gameover(int *x,int *y) { if(*y==-1) {*y=maxx-1;endwin();exit(0);} if(*y>=maxx) {*y=0;endwin();exit(0);} if(*x>=maxy) {*x=0;endwin();exit(0);} if(*x==-1) {*x=maxy-1;endwin();exit(0);} } void moveSnk(int *p) { if( p[0] - p[2] >0 && p[1] - p[3] == 0) { *py = *py + 1; snkjmv(*py,*px,p,*lsnk); //一直下 if(samesnk(p,*lsnk)==1) //撞到自己game over { endwin(); exit(0); } gameover(px,py); //撞到墙game over } else if( p[0] - p[2] <0 && p[1] - p[3] == 0) { //一直上 *py = *py - 1; snkjmv(*py,*px,p,*lsnk); if(samesnk(p,*lsnk)==1) //撞到自己game over { endwin(); exit(0); } gameover(px,py); //撞到墙game over } if( p[1] - p[3] >0 && p[0] - p[2] == 0) { //一直左 *px = *px + 1; snkjmv(*py,*px,p,*lsnk); if(samesnk(p,*lsnk)==1) //撞到自己game over { endwin(); exit(0); } gameover(px,py); //撞到墙game over } else if( p[1] - p[3] <0 && p[0] - p[2] == 0) { //一直右 *px = *px - 1; snkjmv(*py,*px,p,*lsnk); if(samesnk(p,*lsnk)==1) //撞到自己game over { endwin(); exit(0); } gameover(px,py); //撞到墙game over } } void Snake_Move() //1s定时器信号 { //signal(SIGALRM, SIG_IGN); //showfo(maxy,maxx); //随机食物 moveSnk(psnk); signal(SIGALRM, Snake_Move); } int main(int argc,char *argv[]) { //char mesg[]="Just a string"; /* 将要被打印的字符串*/ int snk[500]={10,8,10,7,10,6,10,5,10,4,10,3,10,2,10,1,10,0}; //初始化蛇的身体位置 psnk = snk; unsigned int ch,x=8,y=10; int fen=0; px = &x; py = &y; int snklen = _LEN; //蛇的初始长度 lsnk= &snklen; int rows,cols; /* 存储行号和列号的变量，用于指定光标位置*/ srand(time(NULL)); initscr(); /* 进入curses 模式*/ getmaxyx(stdscr,rows,cols); /* 取得stdscr（标准输出设备）的行数和列数*/ maxx=rows; maxy=cols; keypad(stdscr,true); noecho(); snkj(snklen,snk); //显示蛇的开始位置 showfo(cols-1,rows-1);//第一个食物 refresh(); fcntl(0,F_SETFL, O_NONBLOCK); //getch非阻赛 signal(SIGALRM, Snake_Move); set_ticker(DFL_SPEED); //DFL_SPEED = 1000 while(1) { ch=getch(); if(ch == 'q')//退出 { break; } if(ch == 'a')// { showfo(cols,rows); } if(ch == KEY_UP )//蛇上 { y--; if(y==-1) {y=rows-1;break;} snkjmv(y,x,snk,snklen); //蛇数组 移动 } if(ch == KEY_DOWN )//蛇下 { y++; if(y>=rows) {y=0;break;} snkjmv(y,x,snk,snklen); //蛇数组 移动 } if(ch == KEY_RIGHT )//蛇右 { x++; if(x>=cols) {x=0;break;} snkjmv(y,x,snk,snklen); //蛇数组 移动 } if(ch == KEY_LEFT )//蛇左 { x--; if(x==-1) {x=cols-1;break;} snkjmv(y,x,snk,snklen); //蛇数组 移动 } //snkjmv(y,x,snk,snklen); //蛇数组 移动 snkj(snklen,snk); //显示 蛇数组 mvprintw(maxx-1,0,"count : %d snk long : %d ",fen,snklen); //mvprintw(0,0,"ni"); refresh(); if( eat(fo.x,fo.y,snk[0],snk[1]) ==1)//吃到食物触发事件 { snklen=snklen+1; addsnkL(y,x,snk,snklen); fen=snklen*2+fen; } if(samesnk(snk,snklen)==1) //撞到自己game over break; //setTicker(20); //set_ticker(500); } endwin(); return 0; }