/*
以下是主要的逻辑代码，还有些.c和.h就没发了
*/
#include <curses.h>
#include <time.h>

#include <stdlib.h>
#include "snake.h"
#include "input.h"
#include <unistd.h>

#include<pthread.h>//多线程

WINDOW*w_snake = NULL;
WINDOW*w_title = NULL;
int SNAKE_DIRECTION = UP;
struct snake snake;
struct food food;
/*
    函数功能： 创建游戏所需要用到的界面
*/
void inin_windows()
{    /*newwin(nlines ,ncols,begin_y，begin_x)
    newwin函数的作用是创建一个新的窗口，该窗口从屏幕位置（begin_y，begin_x）开始
    行数和列数分别由参数nlines和ncols指定。
    它返回一个指向新窗口的指针，如果新窗口创建失败则返回null。*/
   
    w_snake = newwin(MAP_HEIGHT,MAP_WIDTH, 4, 5);
    w_title = newwin(3,20, 0, 20);   
}
/*
    函数功能： 初始化食物
*/
void draw_food()
{
    int flag = 0;
    srandom(time(NULL));//设置随机数种子
    while(1)
    {
        flag = 0;
        food.x = random()%(MAP_WIDTH - 2) + 1;//从1到69随机生成一个数
        food.y = random()%(MAP_HEIGHT - 2) + 1;//从1到28随机生成一个数
        int i;
        for(i = 0;i <snake.len;i++)
        {
            if(snake.x[i] == food.x && snake.y[i] == food.y)//不能生成到蛇身体上
            {
                flag = 1;
                break;
            }
        }
        if(flag == 0 && food.x % 2 == 0)//食物的x坐标是奇数
        {
            break;
        }
    }
   
    wmove(w_snake,food.y,food.x);
    waddstr(w_snake,"*");//画出食物
    wrefresh(w_snake);
}
/*
    初始化蛇
*/
void init_snake()
{
    snake.len = 3;//设置蛇的初始长度
    int i;
    for(i = 0;i < snake.len;i++)
    {
        snake.x[i] = MAP_WIDTH/2 - i*2 + 1;
        snake.y[i] = MAP_HEIGHT/2;
        wmove(w_snake,snake.y[i],snake.x[i]);//移动光标，依次显示
        if(i == 0)
        {
            waddstr(w_snake,"@");
        }
        else
        {
            waddstr(w_snake,"* ");
        }
    }
    wrefresh(w_snake);//刷新
}
/*
    显示游戏框图
*/
void draw_snake_map()
{
    int i;
    for(i = 0;i < MAP_WIDTH;i+=2)
    {
        wmove(w_snake,0,i);//移动光标显示上面的一行
        waddstr(w_snake,"+ ");
        wmove(w_snake,MAP_HEIGHT-1,i);//移动光标显示下面的一行
        waddstr(w_snake,"+ ");
    }
    for(i = 0;i < MAP_HEIGHT;i++)
    {
        wmove(w_snake,i,0);//移动光标显示左边的一行
        waddstr(w_snake,"+");
        wmove(w_snake,i,MAP_WIDTH-1);//移动光标显示右边的一行
        waddstr(w_snake,"+");
    }
    wrefresh(w_snake);//刷新
    init_snake();//投放蛇
   
}
/*
    判断游戏是否结束
    返回值： 结束： 0
             未结束： 1
*/
int game_over()
{
    if(snake.y[0] == 0 || snake.y[0] == MAP_HEIGHT - 1)//撞到上下墙壁
    {
        return 1;
    }
    if(snake.x[0] == 0 || snake.x[0] >= MAP_WIDTH - 2)//撞到左右墙壁
    {
        return 1;
    }
    int i;
    for(i = 1;i < snake.len;i++)//撞到自己身体
    {
        if(snake.x[i] == snake.x[0] && snake.y[i] == snake.y[0])
        {
            return 1;
        }
    }
    if(snake.len == MAX_SIZE)//到达最大长度
    {
        return 1;
    }
    return 0;
}
/*
    画出每次更新的贪吃蛇
*/
void draw_snake()
{
    int i;
    for(i = 0;i < snake.len;i++)
    {
        wmove(w_snake,snake.y[i],snake.x[i]);//移动光标显示
        if(i == 0)
        {
            waddstr(w_snake,"0");//显示蛇头
        }
        else
        {
            waddstr(w_snake,"*");//显示蛇身体
        }
    }
    wrefresh(w_snake);//刷新
}
/*
    函数功能：多线程获取用户输入
*/
void* fun_input(void *yy)
{
    while(1)
    {
        int mv = get_use_input();//保存原先方向
        int pre_key = SNAKE_DIRECTION;
        SNAKE_DIRECTION = mv;
        if(pre_key == LEFT && mv == RIGHT)//原来蛇头是向左，但输入方向是向右，改回左
        {
            SNAKE_DIRECTION = LEFT;
        }
        if(pre_key == RIGHT && mv == LEFT)
        {
            SNAKE_DIRECTION = RIGHT;
        }
        if(pre_key == UP && mv == DOWN)
        {
            SNAKE_DIRECTION = UP;
        }
        if(pre_key == DOWN && mv == UP)
        {
            SNAKE_DIRECTION = DOWN;
        }
        if(pre_key != DOWN && pre_key != RIGHT && pre_key != LEFT && pre_key != UP && pre_key != QUIT)
        {
            SNAKE_DIRECTION = pre_key;
        }
        
    }
}
/*
    game_snake:贪吃蛇游戏
*/
void game_snake()
{
    int num = 0;
    int x = 10;
    int feed = 500000;
    system("clear");
    inin_windows();//创建游戏主界面
    draw_snake_map();//显示游戏框图
    wmove(w_title,0,0);
    waddstr(w_title,"Snake_Game");
   
    wmove(w_title,1,0);
    waddstr(w_title,"Author: hui");
   
    wmove(w_title,2,0);
    waddstr(w_title,"score:");
   
    wmove(w_title,2,6);
    char buf[6]="";
    sprintf(buf,"%d",num);
    waddstr(w_title,buf);
    wrefresh(w_title);//显示游戏名，作业，得分
   
    draw_food();//投放食物
    pthread_t tid;//实现多线程
    pthread_create(&tid,NULL,fun_input,NULL);
    while(1)
    {
        if(snake.x[0] == food.x &&snake.y[0] == food.y)//判断是否吃到食物
        {
             snake.len ++;//吃到长度 +1，得分 +1，并投放新的食物
             draw_food();
             num++;
        }
        else//没有吃到食物就照常
        {
            wmove(w_snake,snake.y[snake.len-1],snake.x[snake.len-1]);
            waddstr(w_snake," ");//清空最后一个
            wrefresh(w_snake);
        }
        int i;
        for(i = snake.len - 1;i > 0;i--)//蛇身向他的前一个坐标移动
        {
            snake.x[i] = snake.x[i-1];
            snake.y[i] = snake.y[i-1];
        }
        switch(SNAKE_DIRECTION)//判断移动方向
        {
            case UP:
                snake.y[0]--;
                break;
            case DOWN:
                snake.y[0]++;
                break;
            case LEFT:
                snake.x[0]-= 2;
                break;
            case RIGHT:
                snake.x[0]+= 2;
                break;
        }
        draw_snake();//画出更新后的蛇
        if(num % x == 0 && num != 0)//每吃10个就速度变成原来的0.5倍
        {
            feed = feed * 0.5;
            x *= 2;
        }
        wmove(w_title,2,6);//显示更新后的分数
        char buf[6]="";
        sprintf(buf,"%d",num);
        waddstr(w_title,buf);
        wrefresh(w_title);
        
        usleep(feed);//休眠时间
        if(game_over())
        {
            wmove(w_snake,10,30);//游戏结束提示game over
            waddstr(w_snake,"game over!");
            wrefresh(w_snake);
            sleep(1);
            break;
        }
    }
}

希望大家给点思路