curses庫寫的貪吃蛇游戲

用curses庫寫的貪吃蛇游戲,額 初學c語言,可能寫的很垃圾,代碼也很亂  ,剛學編程的可以看看, 希望有高手能指點下
#include <stdio.h>
#include <curses.h>
#include <stdlib.h>
#include <time.h>

struct Food{
int x;
int y;
int exist;
};
struct Snake{
int x[100];
int y[100];
int node;
};

struct Food food;
struct Snake snake;
int t=300000;
int point=0;

//繪制主窗口
int win(void)
{
    int i;
    for(i=0;i<20;i++)
    {
        move(i,0);
        addstr("+");
        move(i,50);
        addstr("+");
    }
    for(i=0;i<=50;i++)
    {
        move(0,i);
        addstr("+");
        move(20,i);
        addstr("+");
    }
}
//繪制得分窗口
int socrewin (void)
{
    int i;
    for(i=0;i<5;i++)
    {
        move(i,52);
        addstr("+");
        move(i,62);
        addstr("+");
    }
    for (i = 52; i <=62; i += 1)
    {
        move(0,i);
        addstr("+");
        move(5,i);
        addstr("+");   
    }
}   
//菜單選項
int menu(void)
{
    int ch;
    move(3,5);
    addstr("a.  Star");
    move(5,5);
    addstr("q.  Exit");
    ch=getch();
    switch(ch)
    {
        case a:
            return a;
        case q:
            return q;
           
    }
}
//游戲運行
int gamerun(void)
{
    int ch,i;
    i=0;
    snake.x[0]=10;
    snake.y[0]=25;
    snake.node=1;
    nodelay(stdscr,TRUE);
    food_init();   
    while(i!=-1)
    {
        if((pd())==1)
        {
            food_init();
        }
        snake_win(snake.x[0],snake.y[0]);
        food_win(food.x,food.y);
        if((game_win())==-1)
            break;
        ch=getch();
        if((key(ch))!=0)
            i=key(ch);
        switch(i)
        {
            case 1:
                snake.x[0]--;
                break;
            case 2:
                snake.x[0]++;
                break;
            case 3:
                snake.y[0]--;
                break;
            case 4:
                snake.y[0]++;
                break;
        }
        coo ();
       
    }
    move(10,20);
    addstr("Game over");
    refresh();
    sleep(5);
    return 0;
}
//食物初始化
int food_init(void)
{
    srand((int)time(0));
    food.x=rand()%20;
    if(food.x==0)
        food.x=1;
    food.y=rand()%50;
    if(food.y==0)
        food.y=1;
    food_win(food.x,food.y);
}
//游戲圖形繪制
int game_win(void)
{
    int i;
    if(snake.x[0]==0||snake.x[0]==20||snake.y[0]==0||snake.y[0]==50)
        return -1;
    for (i=0;i<=snake.node;i++)
    {
        move(snake.x[i],snake.y[i]);
        addstr("O");
    }
    move(LINES-1,0);
    return 0;
}

//鍵盤信號捕捉
int key (ch)
{
    if(ch==KEY_UP)
        return 1;
    if(ch==KEY_DOWN)
        return 2;
    if(ch==KEY_LEFT)
        return 3;
    if(ch==KEY_RIGHT)
        return 4;
    if(ch==q)
        return -1;
    return 0;
}
//判斷
int pd(void)
{
    if(food.x==snake.x[0])
    {
        if(food.y==snake.y[0])
        {
            snake.node++;
            point++;
            return 1;
        }
    }
    return 0;
}
//得分
int Score()
{
    move(2,55);
    addstr("Score");
    move(3,57);
    printw("%d",point);
}
//食物圖形繪制
int food_win(int x, int y)
{
    move(x,y);
    addstr("$");
    return 0;
}
//刷新屏幕
int coo (void)
{
    clear();
    win();
    socrewin();
    Score();
    usleep(t);
    refresh();
    return 0;
}