/*
1活动范围怎么设计
2 蛇身设计实现
3 控制
4 食物
5 吃食物
*/
#include <iostream>
#include <cstdlib>
#include <conio.h>
#include <time.h>
#include <Windows.h>
#include <assert.h>
using namespace std;
char game[20][20];
//活动范围
void InitFace()
{
for (int i = 0; i < 20; i++)
{
for (int j = 0; j < 20; j++)
{
if (i == 0 || i == 19 || j == 0 || j == 19)
{
game[i][j] = ' ';
}
else game[i][j] = ' ';
}
}
}
void OutputF()
{
for (int i = 0; i < 20; i++)
{
for (int j = 0; j < 20; j++)
{
cout << game[i][j];
}
cout << endl;
}
}
//链表
typedef struct node
{
int i;
int j;
struct node* next, * prior;
}SnakeNode;
SnakeNode* head = NULL, * tail = NULL;
int get_i(SnakeNode*& L)
{
return L->i;
}
int get_j(SnakeNode *&L)
{
return L->j;
}
//添加节点
void add_head(int i, int j, SnakeNode*& L)
{
SnakeNode* p;
p = (SnakeNode*)malloc(sizeof(SnakeNode));
assert(p);
p->i = i;
p->j = j;
p->next = head;
p->prior = NULL;
if (head) head->prior = p;
head = p;
if (!tail) tail = head;
game[i][j] = '*';
L = head;
}
//删除
void delete_tail()
{
SnakeNode* p = tail;
game[get_i(tail)][get_j(tail)] = ' ';
if (tail == head)
tail = head = NULL;
else
{
tail = tail->prior;
tail->next = NULL;
}
free(p);
}
//控制方向
enum dir{up=0,down,l,r};
dir point;
int food_x;
int food_y;
void change_Point(char keydown)
{
switch (keydown)
{
case 'w': point = up; break;
case 's': point = down; break;
case 'a': point = l; break;
case 'd': point = r; break;
}
}
//随机食物
void get_food()
{
srand((unsigned int)time(NULL));
food_x = rand() % 18 + 1;
food_y = rand() % 18 + 1;
game[food_x][food_y] = '*';
}
//移动更新位置
void moving()
{
int a, b;
a = get_i(head);
b = get_j(head);
cout << point << endl;
switch (point)
{
case up: --a; break;
case down: ++a; break;
case l: --b; break;
case r: ++b; break;
}
if (a == 19 || b == 19 || a == 0 || b == 0)
{
cout << "game over" << endl;
exit(0);
}
if (a == food_x && b == food_y)
{
add_head(a, b, head);
get_food();
}
else
{
add_head(a, b, head);
delete_tail();
}
}
int main()
{
cout << "Using w,s,a,d, to contrl direction"<<endl;
InitFace();
add_head(17, 10, head);
add_head(17, 11, head);
add_head(17, 12, head);
get_food();
OutputF();
while (true)
{
char keydown= _getch();
cout <<"input" <<keydown << endl;
change_Point(keydown);
while (!_kbhit()) //kbhit()在执行时,检测是否有按键按下,有按下返回非0值，没有按下则返回0，是非阻塞函数；
{
system("cls");
moving();
OutputF();
Sleep(800);
}
}
return 0;
}
/*
控制台闪屏厉害
*/