跟菜鸟学写c语言贪吃蛇

二话不说上代码
wsad控制上下左右，不分大小写，一定要切换英文输入，中途可以按p暂停，打印蛇坐标以及蛇长，按回车继续运行，其他案件也行，会打印到屏幕，最长50节，因为是结构体数组，最大50，后续很多功能待完善，简称控制台贪吃蛇1.0版本

#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<time.h>
#include<conio.h>//按键监控
#include
using namespace std;
#define SNAKESIZE 50
struct Food
{
int x;
int y;
}food;
typedef Food OneSnakeNode;
struct Snake
{
int x[SNAKESIZE];
int y[SNAKESIZE];
int len;
int speed;
}snake;
struct StrMapXywh
{
int x;
int y;
int width;
int height;
}stPos;
char key = ‘w’;
char lastkey = ‘w’;
int eatFlag = 0;
void gotoxy(int x, int y)
{
HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
COORD coord;
coord.X = x;
coord.Y = y;
SetConsoleCursorPosition(handle, coord);
}
void HideCursor()
{
CONSOLE_CURSOR_INFO myConsole; //光标结构体
myConsole.dwSize = 1; //光标百分比厚度
myConsole.bVisible = FALSE; //代表光标不可见
HANDLE myhand = GetStdHandle(STD_OUTPUT_HANDLE);//获取当前输出光标的句柄
SetConsoleCursorInfo(myhand, &myConsole);
}

bool IsGoBack(char lastkey, char key);
void DrawMap();
void IsEatFood();
void KeyDown();
bool IsSnakeStatus();
bool IsGoodFood(Food food);
char BigToSmall(char key);
void PrintSnake();
void CreatOneFood();
void InitSnake();
void PrintSnakeStatus();
int main()
{
stPos = {10, 5, 40, 20};
HideCursor();
DrawMap();
InitSnake();
while (1)
{
IsEatFood();
Sleep(snake.speed);
KeyDown();
if (!IsSnakeStatus() || snake.len == 50)
{
break;
}
}
gotoxy((stPos.width + stPos.x) / 2, (stPos.height + stPos.y) / 2);
printf(“gameover”);
system(“pause”);
return 0;
}

void PrintSnake()
{
for (int i = 0; i <= snake.len - 1; ++i)
{
gotoxy(snake.x[i], snake.y[i]);
printf("*");
}

}

void CreatOneFood()
{
while (1)
{
srand((int)time(0));
food.x = rand() % (stPos.width - 1) + 1 + stPos.x;
food.y = rand() % (stPos.height - 1) + 1 + stPos.y;
if (IsGoodFood(food))
{
break;
}
}
gotoxy(food.x, food.y);
printf("#");
}
void DrawMap()
{
for (int i = stPos.x; i <= stPos.x + stPos.width; ++i)
{
//打印纵坐标为y,从横坐标为x起长度为width的一条横向地图线
gotoxy(i, stPos.y);
printf("@");
//打印纵坐标为y+height,从横坐标为x起长度为width的一条横向地图线
gotoxy(i, stPos.height + stPos.y);
printf("@");
}
for (int j = stPos.y; j <= stPos.y + stPos.height; ++j)
{
//打印横坐标为x,从纵坐标为y起长度为height的一条纵向地图线
gotoxy(stPos.x, j);
printf("@");
//打印横坐标为x+width,从纵坐标为y起长度为height的一条纵向地图线
gotoxy(stPos.x + stPos.width, j);
printf("@");
}
}
void InitSnake()
{
snake.len = 3;
snake.speed = 500;
snake.x[0] = stPos.width / 2 + stPos.x;
snake.y[0] = stPos.height / 2 + stPos.y;
for (size_t i = 1; i < snake.len; i++)
{
snake.x[i] = snake.x[i - 1];
snake.y[i] = snake.y[i - 1] + 1;
}
PrintSnake();
CreatOneFood();

}
bool IsGoodFood(Food food)
{
for (int i = 0; i <= snake.len - 1; ++i)
{
if (snake.x[i] == food.x && snake.y[i] == food.y)
{
return false;
}
}
return true;
}
void IsEatFood()
{
if (snake.x[0] == food.x && snake.y[0] == food.y)
{
eatFlag = 1;
++snake.len;
switch (key)
{
case ‘w’:
–snake.y[0];
break;
case ‘s’:
++snake.y[0];
break;
case ‘a’:
–snake.x[0];
break;
case ‘d’:
++snake.x[0];
break;
default:
break;
}
for (int i = snake.len - 1; i >= 2; --i)
{
snake.x[i] = snake.x[i - 1];
snake.y[i] = snake.y[i - 1];
}
snake.x[1] = food.x;
snake.y[1] = food.y;
}
if (eatFlag)
{
CreatOneFood();
eatFlag = 0;
}
}

//判断蛇的运动方向和此次按键方向是否相反
bool IsGoBack(char lastkey, char key)
{
if (lastkey == ‘w’ && key == ‘s’)
{
return true;
}
if (lastkey == ‘a’ && key == ‘d’)
{
return true;
}
if (lastkey == ‘s’ && key == ‘w’)
{
return true;
}
if (lastkey == ‘d’ && key == ‘a’)
{
return true;
}
return false;
}

//将按键大小写均默认小写
char BigToSmall(char key)
{
switch (key)
{
case ‘w’:
case ‘W’:
key = ‘w’;
break;
case ‘s’:
case ‘S’:
key = ‘s’;
break;
case ‘a’:
case ‘A’:
key = ‘a’;
break;
case ‘d’:
case ‘D’:
key = ‘d’;
break;
case ‘p’:
case ‘P’:
key = ‘p’;
break;
default:
break;
}
return key;
}

//按键操作
void KeyDown()
{
lastkey = key;
if (_kbhit())
{
fflush(stdin);
key = _getch();
}
key = BigToSmall(key);
if (key == ‘p’)
{
for (int i = 0; i <= snake.len - 1; ++i)
{
gotoxy(60, 5 + i);
printf(“蛇第%d节x坐标%dy坐标%d”, i + 1, snake.x[i], snake.y[i]);
}
cin.get();
key = lastkey;
}
if (IsGoBack(lastkey, key))
{
OneSnakeNode temp;
int len = snake.len / 2;
int templen;
for (int i = 0; i < len; ++i)
{
temp.x = snake.x[i];
temp.y = snake.y[i];
templen = snake.len - 1 - i;
snake.x[i] = snake.x[templen];
snake.y[i] = snake.y[templen];
snake.x[templen] = temp.x;
snake.y[templen] = temp.y;
}
}
gotoxy(snake.x[snake.len - 1], snake.y[snake.len - 1]);
printf(" ");
for (int i = snake.len - 1; i > 0; --i)
{
snake.x[i] = snake.x[i - 1];
snake.y[i] = snake.y[i - 1];
}
switch (key)
{
case ‘w’:
–snake.y[0];
break;
case ‘s’:
++snake.y[0];
break;
case ‘a’:
–snake.x[0];
break;
case ‘d’:
++snake.x[0];
break;
default:
break;
}
PrintSnake();
}

//判断蛇与自身相撞或者与强相撞
bool IsSnakeStatus()
{
if (snake.x[0] == stPos.x || snake.x[0] == stPos.x + stPos.width
|| snake.y[0] == stPos.y || snake.y[0] == stPos.y + stPos.height)
{
return false;
}
for (int i = 1; i <= snake.len - 1; ++i)
{
if (snake.x[0] == snake.x[i] && snake.y[0] == snake.y[i])
{
return false;
}
}
return true;
}