Snake/贪吃蛇.cpp

#include<iostream>
using namespace std;
#include<easyx.h>       //<2F><><EFBFBD><EFBFBD>ͼ<EFBFBD>ο<EFBFBD>ͷ<EFBFBD>ļ<EFBFBD>
#include<stdlib.h>      
#include<time.h>       

#define WIDTH 1040  //<2F><><EFBFBD>峡<EFBFBD><E5B3A1><EFBFBD><EFBFBD>С   
#define HEIGHT 640    
#define SIZE  20   //<2F><><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3><EFBFBD>Լ<EFBFBD><D4BC>ߵĴ<DFB5>С   һ<><D2BB><EFBFBD><EFBFBD><EFBFBD>ӵĴ<D3B5>С
#define UP 1    //<2F><><EFBFBD><EFBFBD><EFBFBD>ߵij<DFB5><C4B3><EFBFBD>
#define DOWN -1
#define LEFT 2
#define RIGHT -2
#define MAX 2000   //<2F>ߵ<EFBFBD><DFB5><EFBFBD><EFBFBD>󳤶<EFBFBD>


typedef struct
{
    int x;
    int y;
}SnakeNode;

SnakeNode temp[MAX];    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
int speed = 150;        //<2F>ߵ<EFBFBD><DFB5>ٶ<EFBFBD>

//<2F><><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD><DFB5><EFBFBD>
class Snake
{
    friend class Food;
public:
    Snake();                    //<2F><>ʼ<EFBFBD><CABC>
    void Move();                //<2F>ƶ<EFBFBD>
    void Draw();                //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    bool Eat(Food food);        //<2F><>ʳ<EFBFBD><CAB3>
    bool Defeat();              //ʧ<><CAA7><EFBFBD>ж<EFBFBD>
private:
    int dirt;                   //<2F><><EFBFBD><EFBFBD>
    int length;                 //<2F><><EFBFBD><EFBFBD>
    SnakeNode node[MAX];        //<2F>ߵ<EFBFBD><DFB5><EFBFBD><EFBFBD><EFBFBD>
};

//<2F><><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
class Food
{
    friend class Snake;
public:
    Food(Snake snake);          //ʳ<><CAB3><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
    void Draw();                //<2F><><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3>
private:
    int x, y;                   //<2F><><EFBFBD><EFBFBD>
};

//<2F>ߵij<DFB5>ʼ<EFBFBD><CABC>
Snake::Snake()
{
    dirt = RIGHT;
    length = 3;
    //<2F>±<EFBFBD><C2B1><EFBFBD>0<EFBFBD><30>λ<EFBFBD><CEBB>Ϊ<EFBFBD>ߵ<EFBFBD>ͷ<EFBFBD><CDB7>
    for (int i = 0; i < length; i++)
    {
        node[i].x = 60 - ((i + 1) * SIZE);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>20
        node[i].y = 0;
    }    //<2F>̶<EFBFBD><CCB6>տ<EFBFBD>ʼ<EFBFBD>ߵ<EFBFBD>λ<EFBFBD><CEBB>
    //<2F><>һ<EFBFBD><D2BB>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>Ͻdz<CFBD><C7B3><EFBFBD>
}

//<2F>ƶ<EFBFBD>
void Snake::Move()
{
    for (int i = 0; i < length; i++)    //<2F><>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD>߽<EFBFBD><DFBD>㿽<EFBFBD><E3BFBD>һ<EFBFBD><D2BB>
    {
        temp[i].x = node[i].x;
        temp[i].y = node[i].y;
    }
    int status = 0;    //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD>򰴼<EFBFBD>
    if (dirt == RIGHT) //<2F>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵķ<DAB5><C4B7>򣬷ֱ<F2A3ACB7><D6B1>ж<EFBFBD><D0B6>Ƿ<EFBFBD>ת<EFBFBD>򣬲<EFBFBD><F2A3ACB2>ܷ<EFBFBD><DCB7><EFBFBD><EFBFBD><EFBFBD>
    {
        //<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD>ת<EFBFBD><D7AA>
        if (GetAsyncKeyState('W') && status == 0) //<2F><>׽<EFBFBD><D7BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊw<CEAA><77>easyx <20>ж<EFBFBD>ת<EFBFBD><D7AA>
        {
            dirt = UP;  //ȥ<><C8A5>if(dirt==up)<29><>else
            status = 1;
        }
        else if (GetAsyncKeyState('S') && status == 0)
        {
            dirt = DOWN;
            status = 1;
        }
        else
        {
            node[0].x = node[0].x + SIZE;
        }
    }
    if (dirt == DOWN)
    {
        //<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD>ת<EFBFBD><D7AA>
        if (GetAsyncKeyState('A') && status == 0)
        {
            dirt = LEFT;
            status = 1;
        }
        else if (GetAsyncKeyState('D') && status == 0)
        {
            node[0].x = node[0].x + SIZE;
            dirt = RIGHT;
            status = 1;
        }
        else
        {
            node[0].y = node[0].y + SIZE;
        }
    }
    if (dirt == LEFT)
    {
        //<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD>ת<EFBFBD><D7AA>
        if (GetAsyncKeyState('W') && status == 0)
        {
            dirt = UP;
            status = 1;
        }
        else if (GetAsyncKeyState('S') && status == 0)
        {
            node[0].y = node[0].y + SIZE;
            dirt = DOWN;
            status = 1;
        }
        else
        {
            node[0].x -= SIZE;
        }
    }
    if (dirt == UP)
    {
        //<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD>ת<EFBFBD><D7AA>
        if (GetAsyncKeyState('A') && status == 0)
        {
            node[0].x = node[0].x - SIZE;
            dirt = LEFT;
            status = 1;
        }
        else if (GetAsyncKeyState('D') && status == 0)
        {
            node[0].x = node[0].x + SIZE;
            dirt = RIGHT;
            status = 1;
        }
        else
        {
            node[0].y = node[0].y - SIZE;
            //<2F>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>
        }
    }

    //<2F>ƶ<EFBFBD>
    for (int i = 1; i < length; i++)
    {
        node[i].x = temp[i - 1].x;
        node[i].y = temp[i - 1].y;
    }
    Sleep(speed);   //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>ʱ<EFBFBD>䣬ͣ<E4A3AC><CDA3>һ<EFBFBD><D2BB>
}

//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void Snake::Draw()
{
    cleardevice();   //<2F><><EFBFBD><EFBFBD>ԭ<EFBFBD>ȵĻ<C8B5>ͼ
    srand((unsigned)time(NULL));   //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>setfillcolor)ʱ<><CAB1>
    for (int i = 0; i < length; i++)
    {
        setfillcolor(RGB(rand() % 256, rand() % 256, rand() % 256));  //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD><EFBFBD>
        fillrectangle(node[i].x, node[i].y, node[i].x + SIZE, node[i].y + SIZE);
    }
}

//<2F><>ʳ<EFBFBD><CAB3>
bool Snake::Eat(Food food)
{
    if (food.x == node[0].x && food.y == node[0].y) //ͷ<><CDB7>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3>
    {
        if (node[length - 1].x - node[length - 2].x == 0 && node[length - 1].y - node[length - 2].y == -20)
        {   
            //<2F>ж<EFBFBD><D0B6><EFBFBD>β<EFBFBD>͵ķ<CDB5><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ù<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD>
            length++;
            node[length - 1].x = node[length - 2].x;
            node[length - 1].y = node[length - 2].y - SIZE;
        }
        else if (node[length - 1].x - node[length - 2].x == 0 && node[length - 1].y - node[length - 2].y == 20)
        {
            length++;
            node[length - 1].x = node[length - 2].x;
            node[length - 1].y = node[length - 2].y + SIZE;
        }
        else if (node[length - 1].x - node[length - 2].x == 20 && node[length - 1].y - node[length - 2].y == 0)
        {
            length++;
            node[length - 1].x = node[length - 2].x + SIZE;
            node[length - 1].y = node[length - 2].y;
        }
        else if (node[length - 1].x - node[length - 2].x == -20 && node[length - 1].y - node[length - 2].y == 0)
        {
            length++;
            node[length - 1].x = node[length - 2].x - SIZE;
            node[length - 1].y = node[length - 2].y;
        }

        return true;
    }
    return false;
}

//ʧ<><CAA7><EFBFBD>ж<EFBFBD>
bool Snake::Defeat()
{
    //<2F><><EFBFBD><EFBFBD><EFBFBD>߽<EFBFBD>
    if (node[0].x < 0 || node[0].x >= WIDTH || node[0].y < 0 || node[0].y >= HEIGHT)
        return true;

    //<2F><><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    for (int i = 1; i < length; i++)
    {
        if (node[0].x == node[i].x && node[0].y == node[i].y)
            return true;
    }
    return false;
}

//ʳ<><CAB3><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><CABC>
Food::Food(Snake snake)
{
table:
    srand((unsigned)time(NULL));     //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    x = (rand() % (WIDTH / SIZE)) * SIZE;
    y = (rand() % (HEIGHT / SIZE)) * SIZE;

    for (int i = 0; i < snake.length; i++)
    {
        if (snake.node[i].x == x && snake.node[i].y == y)
            goto table;   //<2F><><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>³<EFBFBD>ʼ<EFBFBD><CABC>
    }
}

//<2F><><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3>
void Food::Draw()
{
    setfillcolor(GREEN);   //ʳ<><CAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
    fillrectangle(x, y, x + SIZE, y + SIZE); //<2F><><EFBFBD><EFBFBD>ʳ<EFBFBD><CAB3>Ϊ<EFBFBD><CEAA><EFBFBD>Σ<EFBFBD><CEA3>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ꡣ
}

int main()
{
    initgraph(WIDTH, HEIGHT);
    Snake snake;

table:
    Food food(snake);
    while (1)
    {
        BeginBatchDraw();
        FlushBatchDraw();   //˫<><CBAB><EFBFBD>壬<EFBFBD><E5A3AC>ֹ<EFBFBD><D6B9>Ļһ<C4BB><D2BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
        snake.Draw();
        food.Draw();
        FlushBatchDraw();   //˫<><CBAB><EFBFBD>壬<EFBFBD><E5A3AC>ֹ<EFBFBD><D6B9>Ļһ<C4BB><D2BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
        EndBatchDraw();      
        /*˫<><CBAB><EFBFBD>壬<EFBFBD><E5A3AC>ֹ<EFBFBD><D6B9>Ļһ<C4BB><D2BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>*/
        if (snake.Eat(food))
        {
            goto table;  //<2F><><EFBFBD><EFBFBD><EFBFBD>Ե<EFBFBD>ʳ<EFBFBD><EFBFBD><EFA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʳ<EFBFBD><CAB3>
        }
        if (snake.Defeat())
        {
            break;
        }
        snake.Move();
    }

    HWND window = GetHWnd();   //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>Ϸʧ<CFB7><CAA7>
    SetWindowText(window, L"<EFBFBD><EFBFBD>ʾ");     //<2F>޸Ĵ<DEB8><C4B4>ڱ<EFBFBD><DAB1>⣬<EFBFBD><E2A3AC><EFBFBD>ó<EFBFBD><C3B3><EFBFBD>ʾ
    MessageBox(window, L"<EFBFBD><EFBFBD>Ϸʧ<EFBFBD><EFBFBD>", L"<EFBFBD><EFBFBD>ʾ", MB_OKCANCEL);   
    //<2F><>ʾʧ<CABE><CAA7><EFBFBD><EFBFBD>Ϣ  MB_OKCANCEL<45><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>

    return 0;
}