#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <windows.h>
#include <time.h>
//引用请注明出处：http://hi.baidu.com/neptune_moon/item/56ac4b0fe783acc891571823
#define MAX__X 23
#define MAX__Y 50
#define MAX_FOOD 50
#define ESC 27
#define SPACE 32
typedef struct Node{
int x;
int y;
struct Node *next;
}Node,*LinkList;
typedef struct{
LinkList front;
LinkList rear;
int length;
}Queue;
Queue snake;
void gotoxy(int x,int y)//坐标定位
{
COORD loc;
loc.X
=
y;
loc.Y
=
x;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), loc);
}
void help_info()//显示帮助信息
{
gotoxy(8,55);
puts("按ESC键退出,空格键暂停:");
gotoxy(10,55);
puts("上,下,左,右:w,s,a,d");
gotoxy(12,55);
puts("蛇越长,速度也会越快:");
gotoxy(14,55);
puts("如无法控制蛇,请关闭");
gotoxy(15,56);
puts("大写键盘锁定状态:");
}
void game_info()//显示游戏信息
{
gotoxy(3,60);
printf("当前蛇长度: %d",snake.length);
gotoxy(5,60);
printf("
");
gotoxy(5,60);
printf("离胜利还差: %d",MAX_FOOD-snake.length);
}
void enqueue(int x,int y)//入队
{
LinkList p;
p = (LinkList)malloc(sizeof(Node));
p->x = x;
p->y = y;
snake.rear->next = p;
snake.rear = p;
p->next = NULL;
snake.length++;
}
void dequeue()//出队
{
LinkList p = snake.front;
//保存食物位置
p->next->x = p->x;
p->next->y = p->y;
snake.front = snake.front->next;
snake.length--;
free(p);
}
void destroy_queue()//销毁队列
{
LinkList p;
while(p = snake.front)
{
snake.front = snake.front->next;
free(p);
}
}
void snake_init()//初始化蛇,rear指向蛇头,front指向食物,front->next指向蛇尾
{
int i;
snake.rear = snake.front = (LinkList)malloc(sizeof(Node));
snake.rear->next = NULL;
snake.length = 0;
for(i = 0;i < 3;i++)
{
enqueue(1,i + 1);
}
}
void show_food()//随机化食物位置
{
LinkList p;
srand(time(NULL));//初始化随机种子
while(1){
snake.front->x = rand() % (MAX__X-1) + 1;
snake.front->y = rand() % (MAX__Y-1) + 1;
p = snake.front->next;
//防止食物出现在蛇内部
while(p){
if(snake.front->x == p->x && snake.front->y == p->y){ break; }
else{ p = p->next; }
}
if( !p){ break; }
}
gotoxy(snake.front->x,snake.front->y);
putchar('#');//食物
}
int judge()//判断失败与否
{
LinkList p;
if(snake.length >= MAX_FOOD){
system("cls");
gotoxy(4,20);
puts("恭喜你,赢了!!!");
exit(0);
}
//碰到自身
p = snake.front->next;
while(snake.rear !=
p){
if(snake.rear->x == p->x && snake.rear->y == p->y){ break; }
else{ p = p->next; }
}
if(snake.rear == p){
//碰到边界
if(snake.rear->x >= 1 && snake.rear->y >= 1 && snake.rear->x < MAX__X && snake.rear->y < MAX__Y){
return 1;
}
}
system("cls");
gotoxy(4,20);
puts("GAME OVER!!!");
destroy_queue();
getch();
exit(0);
}
void drow_wall()//画墙
{
int i;
for(i = 0; i <= MAX__Y; i++){
gotoxy(0,i);
putchar('=');
gotoxy(MAX__X,i);
putchar('=');
if(i <= MAX__X)
{
gotoxy(i,0);
putchar('||');
gotoxy(i,MAX__Y);
putchar('||');
}
}
}
void drow_snake(int i)//0表示画蛇头,1表示画蛇身
{
LinkList p;
p = snake.rear;
gotoxy(p->x,p->y);
if(i){ putchar('O'); }//蛇身
else{ putchar('O'); }//蛇头
}
void clear_snake_tail()
{
LinkList p = snake.front->next;
gotoxy(p->x,p->y);
putchar(' ');//清除旧蛇尾
p = p->next;
gotoxy(p->x,p->y);
putchar('O');//添加新蛇尾
}
void snake_auto_move(char temp)//实现蛇的自动移动
{
int x,y,speed;
do{
clear_snake_tail();
drow_snake(1);//画蛇身
x = snake.rear->x;
y = snake.rear->y;
switch(temp){
case 'w': x--;break;
case 's': x++;break;
case 'a': y--;break;
case 'd': y++;
}
enqueue(x,y);//新蛇头入队
if(snake.front->x == x && snake.front->y == y){//蛇捕捉到食物后,食物重新随机化
game_info();
show_food();
}
else{ dequeue(); }//旧蛇尾出队
drow_snake(0);//画蛇头
speed = -2.3 * snake.length + 157;
Sleep(speed);//程序暂停speed个单位毫秒
}while(!_kbhit() && judge());//_kbhit为检测键盘输入
}
void snake_move()//实现玩家控制蛇的移动
{
char c,pause;
static char temp = 0;//静态局部变量
pause = 0;
if( !temp){//一开始的时候让蛇先自动移动
temp = 'd';
snake_auto_move(temp);
}
while(1){
c = getch();
if(c == ESC){//退出
system("cls");
puts("游戏退出成功!");
system("pause");
destroy_queue();
exit(0);
}
if(pause == SPACE){
if(c == SPACE){//再按下空格键继续游戏
pause = 0;
gotoxy(6,20);
printf("
");//消除~~Pause~~:
snake_auto_move(temp);
}
continue;
}
if(c == SPACE){//按空格键暂停游戏
pause = SPACE;
gotoxy(6,20);
printf("~~Pause~~:");
continue;
}
if(c == 'w' || c == 'a' || c == 's' || c == 'd'){
if((temp == 'w' && c == 's') || (temp == 's' && c == 'w') || (temp == 'd' && c == 'a') || (temp == 'a' && c == 'd')){//不允许连续的两次内按相反的键
snake_auto_move(temp);
continue;
}
break;
}
snake_auto_move(temp);
}
temp = c;
snake_auto_move(temp);
}
int main()
{
help_info();
snake_init();
show_food();
drow_wall();
game_info();
while(judge()){
snake_move();
}
return 0;
}
//我也是百度的，不懂的别问我
