贪吃蛇//写的比较垃圾。 哎~我本来也便不厉害

#include <stdio.h>
#include <windows.h>
#include <conio.h>
#include <time.h>
#include <stdlib.h>

#define WALLX 60
#define WALLY 20

//¶¨ÒåÉßµÄÉíÌå 
typedef struct snake{
    int x;
    int y;
    struct snake *next;
}body, *Pbody;

void show_wall(int x, int y);
void show_target(int *x, int *y,Pbody *head);
void gotoxy(int x, int y);
void move_snake(Pbody *head, char temp,char temp1);
void add_snake(Pbody *N, char temp);
void error_judge(Pbody *N, char temp);

int x, y;






int main(void)
{

    //¸Õ¿ªÊ¼´´½¨2¸öÉíÌåµÄÉß,²¢°ÑËûÃǵÄ×ø±êÉèÖõ½×óÉϽÇ,²¢ÏÔʾËûÃÇ 
    body *head = (body*)malloc(sizeof(body)); //Í·Ö¸Õë
    body *new1 = (body*)malloc(sizeof(body));
    new1->next = NULL;
    head->next = new1;
    head->x = 2, head->y = new1->y = 1, new1->x = 1;
    gotoxy(new1->x, new1->y);
    putchar('@');
    gotoxy(head->x, head->y);
    putchar('@');
    show_target(&x, &y,&head);
    char temp = 'd',temp1='d';
    show_wall(WALLX, WALLY);
    gotoxy(0,22);
    printf("W S A D  ·Ö±ð¿ØÖÆÉÏ¡¢Ï¡¢×ó¡¢ÓÒ,°´ÈÎÒâ¼ü¿ªÊ¼,¹ý³ÌÖÐÈÎÒâ¼üÔÝÍ£");
    gotoxy(0,23);
    printf("Ì°³ÔÉßBeta 1.0 BUG½Ï¶à£¬ÍæÍ滹ÐС£");
    getch();
    while (1)
    {
        if (kbhit()) //kbhitº¯ÊýÅжÏÊÇ·ñ´æÔÚ¼üÅÌÊäÈë,ÈôûÓÐÔòÔ˶¯Éß 
        {
            temp1=temp;
            temp = getch();
        }
        else
        {
            move_snake(&head, temp,temp1);
            error_judge(&head, temp);
            if (head->x == x&&head->y == y)
            {
                show_target(&x, &y,&head);
                body *new2 = (body*)malloc(sizeof(body));  //³ÔÁËÒ»¸öÖ®ºóÉßÉí±ä³¤£¬È»ºóÔÚmovº¯ÊýÀ¾Í¿ÉÒÔÔö³¤ÉßÉí 
                new1 = head;
                while (new1->next != NULL)
                    new1 = new1->next;
                new1->next = new2;
                new2->next = NULL;
            }
            
            

        }

    }

}


void gotoxy(int x, int y)
{
    COORD coordinate; //COORDÊÇwinapiÖж¨ÒåµÄÒ»ÖֽṹÌ壬±íʾһ¸ö×Ö·ûÔÚ¿ØÖÆ̨ÆÁÄ»ÉϵÄ×ø±ê 
    coordinate.X = x;   //°Ñ»ñµÃµÄ×ø±ê´«Èë¸øCOORD½á¹¹Àï 
    coordinate.Y = y;
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coordinate);
    //GetStdHandle(STD_OUTPUT_HANDLE)»ñµÃµÄÊÇÕâ¸ö¿ØÖÆ̨µÄ¾ä±ú
}


/***********************************/
/*º¯Êý¹¦ÄÜ£ºÏÔʾǽ±Ú
/*½éÉÜ£ºÓÃÑ­»·´òÓ¡
/***********************************/
void show_wall(int x, int y)
{
    int i, j;
    for (i = 0; i<x; i++)
    {
        gotoxy(i, 0);
        putchar('+');
        gotoxy(i, y);
        putchar('+');
    }
    for (i = 0; i <= y; i++)
    {
        gotoxy(0, i);
        putchar('+');
        gotoxy(x, i);
        putchar('+');
    }
}


/***********************************/
/*º¯Êý¹¦ÄÜ£ºÏÔʾʳÎï
/*½éÉÜ£ºÊ¹ÓÃËæ»úÊýrand
/***********************************/
void show_target(int *x, int *y,Pbody *head)
{
    body *current = (*head);
    *x = rand() % (WALLX - 1) + 1;  //Ëæ»úÉú³ÉʳÎï×ø±ê
    *y = rand() % (WALLY - 1) + 1;
    //È¥³ýʳÎïºÍÉßÉíÖغϵĵط½ 
    while(current->next!=NULL)
    {
        if((*x)==current->x&&(*y)==current->y)
        {
            *x = rand() % (WALLX - 1) + 1; 
            *y = rand() % (WALLY - 1) + 1;
        }
        current=current->next;
    }
    
    gotoxy(*x, *y);
    putchar('*');

}

/***********************************/
/*º¯Êý¹¦ÄÜ£ºÒƶ¯Éß 
/*½éÉÜ£ºÍ¨¹ýÌí¼ÓÉßͷɾ³ýÉßβÒÔʵÏÖÉßµÄÒƶ¯ 
/***********************************/
void move_snake(Pbody *head, char temp,char temp1)
{

    Sleep(60);
    body *current = (Pbody)malloc(sizeof(body)); //Öмä±äÁ¿£¬ÓÃÀ´±éÀú´òÓ¡ 
    system("cls");
    add_snake(head, temp);
    current = (*head);
    while (current != NULL)
    {
        gotoxy(current->x, current->y);
        current = current->next;
        putchar('@');

    }
    gotoxy(0,22);
    printf("W S A D  ·Ö±ð¿ØÖÆÉÏ¡¢Ï¡¢×ó¡¢ÓÒ,°´ÈÎÒâ¼ü¿ªÊ¼,¹ý³ÌÖÐÈÎÒâ¼üÔÝÍ£");
    gotoxy(0,23);
    printf("Ì°³ÔÉßBeta 1.0 BUG½Ï¶à£¬ÍæÍ滹ÐС£");
    show_wall(WALLX, WALLY);
    gotoxy(x, y);
    putchar('*');



}

void add_snake(Pbody *head, char temp)
{
    body *new1 = (Pbody)malloc(sizeof(body));
    switch (temp)
    {
    case 'd':
        new1->x = (*head)->x + 1;
        new1->y = (*head)->y;
        new1->next = (*head);
        (*head) = new1;
        while (new1->next->next != NULL)
            new1 = new1->next;
        new1->next = NULL;
        break;
    case 'w':
        new1->x = (*head)->x;
        new1->y = (*head)->y - 1;
        new1->next = (*head);
        (*head) = new1;
        while (new1->next->next != NULL)
            new1 = new1->next;
        new1->next = NULL;
        break;
    case 's':
        new1->x = (*head)->x;
        new1->y = (*head)->y + 1;
        new1->next = (*head);
        (*head) = new1;
        while (new1->next->next != NULL)
            new1 = new1->next;
        new1->next = NULL;
        break;
    case 'a':
        new1->x = (*head)->x - 1;
        new1->y = (*head)->y;
        new1->next = (*head);
        (*head) = new1;
        while (new1->next->next != NULL)
            new1 = new1->next;
        new1->next = NULL;
        break;
    }
}

void error_judge(Pbody *N, char temp)
{
    body *current = (*N);
    int x,y;
    x = current->x;
    y = current->y;
    if((*N)->x>=WALLX||(*N)->y>=WALLY||(*N)->x<=0||(*N)->y<=0)
    {
        system("cls");
        gotoxy(15,15);
        printf("ͬѧÄãÊäÁË");
        Sleep(500000);
    }
    else
    {
        while(current->next!=NULL)
        {
            current=current->next;
            if(current->x==x&&current->y==y)
            {
                system("cls");
                gotoxy(15,15);
                printf("ͬѧÄãÊäÁË");
                Sleep(500000);
            }
        }
        if(current->x==x&&current->y==y)
        {
            system("cls");
            gotoxy(15,15);
                printf("ͬѧÄãÊäÁË");
                Sleep(500000);
        }
        
    }
    
    
}