我写的贪吃蛇，请大家多多支持
//mysnake1.0.c//编译命令：cc mysnake1.0.c -lcurses -o mysnake1.0//用方向键控制蛇的方向#include <stdio.h>#include <stdlib.h>#include <curses.h>#include <signal.h>#include <sys/time.h>#define NUM 60struct direct //用来表示方向的{ int cx; int cy;};typedef struct node //链表的结点{ int cx; int cy; struct node *back; struct node *next;}node;void initGame(); //初始化游戏int setTicker(int); //设置计时器void show(); //显示整个画面void showInformation(); //显示游戏信息（前两行）void showSnake(); //显示蛇的身体void getOrder(); //从键盘中获取命令void over(int i); //完成游戏结束后的提示信息void creatLink(); //（带头尾结点）双向链表以及它的操作void insertNode(int x, int y); void deleteNode();void deleteLink();int ch; //输入的命令int hour, minute, second; //时分秒int length, tTime, level; //（蛇的）长度，计时器，（游戏）等级struct direct dir, food; //蛇的前进方向，食物的位置node *head, *tail; //链表的头尾结点int main(){ initscr(); initGame(); signal(SIGALRM, show); getOrder(); endwin(); return 0;}void initGame(){ cbreak(); //把终端的CBREAK模式打开 noecho(); //关闭回显 curs_set(0); //把光标置为不可见 keypad(stdscr, true); //使用用户终端的键盘上的小键盘 srand(time(0)); //设置随机数种子 //初始化各项数据 hour = minute = second = tTime = 0; length = 1; dir.cx = 1; dir.cy = 0; ch = 'A'; food.cx = rand() % COLS; food.cy = rand() % (LINES-2) + 2; creatLink(); setTicker(20);}//设置计时器（这个函数是书本上的例子，有改动）int setTicker(int n_msecs){ struct itimerval new_timeset; long n_sec, n_usecs; n_sec = n_msecs / 1000 ; n_usecs = ( n_msecs % 1000 ) * 1000L ; new_timeset.it_interval.tv_sec = n_sec; /* set reload */ new_timeset.it_interval.tv_usec = n_usecs; /* new ticker value */ n_msecs = 1; n_sec = n_msecs / 1000 ; n_usecs = ( n_msecs % 1000 ) * 1000L ; new_timeset.it_value.tv_sec = n_sec ; /* store this */ new_timeset.it_value.tv_usec = n_usecs ; /* and this */ return setitimer(ITIMER_REAL, &new_timeset, NULL);}void showInformation(){ tTime++; if(tTime >= 1000000) // tTime = 0; if(1 != tTime % 50) return; move(0, 3); //显示时间 printw("time: %d:%d:%d %c", hour, minute, second); second++; if(second > NUM) { second = 0; minute++; } if(minute > NUM) { minute = 0; hour++; } //显示长度，等级 move(1, 0); int i; for(i=0;i<COLS;i++) addstr("-"); move(0, COLS/2-5); printw("length: %d", length); move(0, COLS-10); level = length / 3 + 1; printw("level: %d", level);}//蛇的表示是用一个带头尾结点的双向链表来表示的，//蛇的每一次前进，都是在链表的头部增加一个节点，在尾部删除一个节点//如果蛇吃了一个食物，那就不用删除节点了void showSnake(){ if(1 != tTime % (30-level)) return; //判断蛇的长度有没有改变 bool lenChange = false; //显示食物 move(food.cy, food.cx); printw("@"); //如果蛇碰到墙，则游戏结束 if((COLS-1==head->next->cx && 1==dir.cx) || (0==head->next->cx && -1==dir.cx) || (LINES-1==head->next->cy && 1==dir.cy) || (2==head->next->cy && -1==dir.cy)) { over(1); return; } //如果蛇头砬到自己的身体，则游戏结束 if('*' == mvinch(head->next->cy+dir.cy, head->next->cx+dir.cx) ) { over(2); return; } insertNode(head->next->cx+dir.cx, head->next->cy+dir.cy); //蛇吃了一个“食物” if(head->next->cx==food.cx && head->next->cy==food.cy) { lenChange = true; length++; //恭喜你，通关了 if(length >= 50) { over(3); return; } //重新设置食物的位置 food.cx = rand() % COLS; food.cy = rand() % (LINES-2) + 2; } if(!lenChange) { move(tail->back->cy, tail->back->cx); printw(" "); deleteNode(); } move(head->next->cy, head->next->cx); printw("*");}void show(){ signal(SIGALRM, show); //设置中断信号 showInformation(); showSnake(); refresh(); //刷新真实屏幕}void getOrder(){ //建立一个死循环，来读取来自键盘的命令 while(1) { ch = getch(); if(KEY_LEFT == ch) { dir.cx = -1; dir.cy = 0; } else if(KEY_UP == ch) { dir.cx = 0; dir.cy = -1; } else if(KEY_RIGHT == ch) { dir.cx = 1; dir.cy = 0; } else if(KEY_DOWN == ch) { dir.cx = 0; dir.cy = 1; } setTicker(20); }}void over(int i){ //显示结束原因 move(0, 0); int j; for(j=0;j<COLS;j++) addstr(" "); move(0, 2); if(1 == i) addstr("Crash the wall. Game over"); else if(2 == i) addstr("Crash itself. Game over"); else if(3 == i) addstr("Mission Complete"); setTicker(0); //关闭计时器 deleteLink(); //释放链表的空间}//创建一个双向链表void creatLink(){ node *temp = (node *)malloc( sizeof(node) ); head = (node *)malloc( sizeof(node) ); tail = (node *)malloc( sizeof(node) ); temp->cx = 5; temp->cy = 10; head->back = tail->next = NULL; head->next = temp; temp->next = tail; tail->back = temp; temp->back = head;}//在链表的头部（非头结点）插入一个结点void insertNode(int x, int y){ node *temp = (node *)malloc( sizeof(node) ); temp->cx = x; temp->cy = y; temp->next = head->next; head->next = temp; temp->back = head; temp->next->back = temp;}//删除链表的（非尾结点的）最后一个结点void deleteNode(){ node *temp = tail->back; node *bTemp = temp->back; bTemp->next = tail; tail->back = bTemp; temp->next = temp->back = NULL; free(temp); temp = NULL;}//删除整个链表void deleteLink(){ while(head->next != tail) deleteNode(); head->next = tail->back = NULL; free(head); free(tail);}