package mainimport ("Clib""fmt""math/rand""os""time"
)//全局常量 界面大小
const WIDE int = 20
const HIGH int = 20//存储食物
var food Food//分数
var score = 0//初始化父类 坐标
type Position struct {X intY int
}type Food struct {Position
}//随机食物
func RandomFood() {food.X = rand.Intn(WIDE) + 1food.Y = rand.Intn(HIGH)//显示食物位置ShowUI(food.X, food.Y, '#')
}
func MapInit() {fmt.Fprintf(os.Stderr,`#-----------------------------------------#|                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         ||                                         |#-----------------------------------------#
`)
}
func ShowUI(X int, Y int, ch byte) {//调用c语言代码绘制光标Clib.GotoPostion(X*2+2, Y+2)//将字符绘制在ui中fmt.Fprintf(os.Stderr, "%c", ch)
}
func PrintScore() {//打印分数Clib.GotoPostion(0, 23)fmt.Fprintln(os.Stderr, score)time.Sleep(time.Second * 2)
}type Snake struct {size intdir  intpos  [WIDE * HIGH]Position
}//初始化蛇信息
func (s *Snake) SnakeInit() {//初始化地图
    MapInit()//随机食物
    RandomFood()//蛇的长度s.size = 2s.pos[0].X = WIDE / 2s.pos[0].Y = HIGH / 2s.pos[1].Y = WIDE/2 - 1s.pos[1].Y = HIGH / 2//用U上L坐R右D下s.dir = 'R'for i := 0; i < s.size; i++ {var ch byte//区分蛇头和身体if i == 0 {ch = '@'} else {ch = '*'}ShowUI(s.pos[i].X, s.pos[i].Y, ch)}//go 添加一个独立函数//接收键盘的信息
    go func() {for {switch Clib.Direction() {case 72, 87, 119:if s.dir != 'D' {s.dir = 'U'}case 80, 83, 115:if s.dir != 'U' {s.dir = 'D'}case 65, 97, 75:if s.dir != 'R' {s.dir = 'L'}case 68, 77, 100:if s.dir != 'L' {s.dir = 'R'}case 32:s.dir = 'P'}}}()
}
func (s *Snake) PlayGame() {var dx, dy int = 0, 0//游戏 的流程控制for {FLAG://延迟执行333stime.Sleep(time.Second / 3)//更新蛇的位置if s.dir == 'P' {goto FLAG}switch s.dir {case 'U':dx = 0dy = -1case 'D':dx = 0dy = 1case 'L':dx = -1dy = 0case 'R':dx = 1dy = 0}//蛇头和墙的碰撞if s.pos[0].X < 1 || s.pos[0].X >= WIDE+1 || s.pos[0].Y < 0 || s.pos[0].Y >= HIGH {return}//蛇头和身体的碰撞for i := 1; i < s.size; i++ {if s.pos[0].X == s.pos[i].X && s.pos[0].Y == s.pos[i].Y {return}}//蛇头的食物的碰撞if s.pos[0].X == food.X && s.pos[0].Y == food.Y {s.size++RandomFood()score++}//记录尾巴坐标lx := s.pos[s.size-1].Xly := s.pos[s.size-1].Y//更新蛇的坐标 蛇身体的坐标for i := s.size - 1; i > 0; i-- {s.pos[i].X = s.pos[i-1].Xs.pos[i].Y = s.pos[i-1].Y}//蛇头的坐标s.pos[0].X += dxs.pos[0].Y += dy//绘制蛇的UIfor i := 0; i < s.size; i++ {var ch byte//区分蛇头和身体if i == 0 {ch = '@'} else {ch = '*'}ShowUI(s.pos[i].X, s.pos[i].Y, ch)}//每次写完将尾巴制空ShowUI(lx, ly, ' ')}
}
func main() {//设置随机数种子 用作于混淆
    rand.Seed(time.Now().UnixNano())//隐藏控制台光标
    Clib.HideCursor()//创建蛇的对象var s Snake//蛇的初始化
    s.SnakeInit()s.PlayGame()PrintScore()
}

package Clib/*
#include<windows.h>
#include<conio.h>
//使用WInAPI来移动控制台光标
void gotoxy(int x,int y){COORD c;c.X=x,c.Y=y;SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),c);
}
//从键盘获取一次按键但不显示在控制台
int direct(){return _getch();
}
//去控制台光标
void hideCursor(){CONSOLE_CURSOR_INFO cci;cci.bVisible=FALSE;cci.dwSize=sizeof(cci);SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),&cci);
}
*/
import "C" //go可以嵌入C语言的函数
//设置控制台光标位置
func GotoPostion(X int, Y int) {C.gotoxy(C.int(X), C.int(Y))
}//无显示键盘输入字符
func Direction() (key int) {key = int(C.direct())return
}
func HideCursor() {C.hideCursor()
}