#include<stdio.h>
#include<time.h>
#include<stdlib.h>
int main()
{
	printf("贪吃蛇游戏，显示食物。按1234分别控制蛇上下左右的移动，如果碰到食物则加分,按0初始化\n");
	srand(time(NULL));
	int a1 = rand() % 8 + 2;
	int b1 = rand() % 16 + 2;
	int a2 = rand() % 16 + 2;
	int b2 = rand() % 9 + 2;
	int a3 = rand() % 16 + 2;
	int b3 = rand() % 17 + 2;
	int a4 = rand() % 3 + 2;
	int b4 = rand() % 16 + 2;
	
	int map[20][20] = { 0 };
	map[a1][b1] = 4;
	map[a2][b2] = 4;
	map[a3][b3] = 4;
	map[a4][b4] = 4;
	int count = 0;
	int e = 11;
	int f = 11;
	int g = 12;
	int h = 13;
	int i = 10;
	int l = 11;
	int m = 11;
	int z = 1;

	while (z == 1)
	{
		
		int a = 0;
		int b = 0;
	
		int j;
		scanf_s("%d", &j);
		if (j == 0)
		{
			e = 11;
			f = 11;
			g = 12;
			h = 13;
			i = 10;

			l = 11;
			m = 11;
			count = 0;
		}
		if (j == 1)
		{
			if (map[l - 1][i] == 4)
			{
				count++;
			}
			if (e != l - 1&&l!=1)
			{
				int n = l;
				int o = i;
				int p = e;
				int q = f;
				map[m][g] = 0;
				l--;
				e = n;
				f = o;
				m = p;
				g = q;
			}
			if (e == l - 1||l==1)
			{
				printf("你输了\n");
				break;
			}
			
		}
		if (j == 2)
		{
			if (map[l + 1][i] == 4)
			{
				count++;
			}
			if (e != l + 1&&l!=18)
			{
				int n = l;
				int o = i;
				int p = e;
				int q = f;
				map[m][g] = 0;
				l++;
				e = n;
				f = o;
				m = p;
				g = q;
			}
			if (e == l + 1||l==18)
			{
				printf("你输了\n");
				break;
			}
		}
		if (j == 3)
		{
			if (map[l][i-1] == 4)
			{
				count++;
			}
			if (f != i - 1&&i!=1)
			{
				int n = l;
				int o = i;
				int p = e;
				int q = f;
				map[m][g] = 0;
				i--;
				e = n;
				f = o;
				m = p;
				g = q;
			}
			if (f == i - 1||i==1)
			{
				printf("你输了\n");
				break;
			}
		}
		if (j == 4)
		{
			if (map[l][i+1] == 4)
			{
				count++;
			}
			if (f != i + 1&&i!=18)
			{
				int n = l;
				int o = i;
				int p = e;
				int q = f;
				map[m][g] = 0;
				i++;
				e = n;
				f = o;
				m = p;
				g = q;
			}
			if (f == i + 1||i==18)
			{
				printf("你输了\n");
				break;
			}
		}
	
		for (a = 0; a < 20; a++)
		{
			for (b = 0; b < 20; b++)
			{
				if (map[a][b] == 0)
				{
					if (a == 0 || b == 0 || a == 19 || b == 19)
					{
						map[a][b] = 1;
					}
					if ((a == e && b == f) || (a == m && b == g))
					{
						map[a][b] = 2;
					}
					if (a == l && b == i)
					{
						map[a][b] = 3;
					}
				
				}
			}
		}
	
		int c = 0;
		int d = 0;
		for (c = 0; c < 20; c++)
		{
			for (d = 0; d < 20; d++)
			{
			
				if (map[c][d] == 1)
				{
					printf("* ");
				}
				if (map[c][d] == 0)
				{
					printf("  ");
				}
				if (map[c][d] == 2)
				{
					printf("* ");

				}
				if (map[c][d] == 3)
				{
					printf("@ ");
				}
				if (map[c][d] == 4)
				{
					printf("$ ");
				}
			


			}

			printf("\n");
		}
		printf("得分为%d\n", count);

	}
	return 0;
}