#include<iostream>
#include<windows.h>
#include<conio.h>
#include<time.h>
#include<string>
using namespace std;
typedef struct Frame
{
COORD position[2];
int flag;
}Frame;
void SetPos(COORD a)
{
HANDLE out=GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleCursorPosition(out, a);
}
void SetPos(int i, int j)
{
COORD pos={i, j};
SetPos(pos);
}
void HideCursor()
{
CONSOLE_CURSOR_INFO cursor_info = {1, 0}; 
SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursor_info);
}
//把第y行，[x1, x2) 之间的坐标填充为 ch
void drawRow(int y, int x1, int x2, char ch)
{
SetPos(x1,y);
for(int i = 0; i <= (x2-x1); i++) cout<<ch;
}
//在a, b 纵坐标相同的前提下，把坐标 [a, b] 之间填充为 ch
void drawRow(COORD a, COORD b, char ch)
{
if(a.Y == b.Y) drawRow(a.Y, a.X, b.X, ch);
else {
    SetPos(0, 25);
    cout<<"error code 01：无法填充行，因为两个坐标的纵坐标(x)不相等";
    system("pause");
}
}
//把第x列，[y1, y2] 之间的坐标填充为 ch
void drawCol(int x, int y1, int y2, char ch)
{
int y=y1;
while(y!=y2+1) {
    SetPos(x, y);
    cout<<ch;
    y++;
}
}
//在a, b 横坐标相同的前提下，把坐标 [a, b] 之间填充为 ch
void drawCol(COORD a, COORD b, char ch)
{
if(a.X == b.X) drawCol(a.X, a.Y, b.Y, ch);
else {
    SetPos(0, 25);
    cout<<"error code 02：无法填充列，因为两个坐标的横坐标(y)不相等";
    system("pause");
}
}
//左上角坐标、右下角坐标、用row填充行、用col填充列
void drawFrame(COORD a, COORD  b, char row, char col)
{
drawRow(a.Y, a.X+1, b.X-1, row);
drawRow(b.Y, a.X+1, b.X-1, row);
drawCol(a.X, a.Y+1, b.Y-1, col);
drawCol(b.X, a.Y+1, b.Y-1, col);
}
void drawFrame(int x1, int y1, int x2, int y2, char row, char col)
{
COORD a={x1, y1};
COORD b={x2, y2};
drawFrame(a, b, row, col);
}
void drawFrame(Frame frame, char row, char col)
{
COORD a = frame.position[0];
COORD b = frame.position[1];
drawFrame(a, b, row, col);
}
void drawPlaying()
{
drawFrame(0, 0, 48, 24, '=', '|');//    draw map frame;
drawFrame(49, 0, 79, 4, '-', '|');//        draw output frame
drawFrame(49, 4, 79, 9, '-', '|');//        draw score frame
drawFrame(49, 9, 79, 20, '-', '|');//   draw operate frame
drawFrame(49, 20, 79, 24, '-', '|');//  draw other message frame
SetPos(52, 6);
cout<<"得分：";
SetPos(52, 7);
cout<<"称号：";
SetPos(52,10);
cout<<"操作方式：";
SetPos(52,12);
cout<<"  a,s,d,w 控制战机移动。";
SetPos(52,14);
cout<<"  p 暂停游戏。";
SetPos(52,16);
cout<<"  e 退出游戏。";
SetPos(52,18);
cout<<"  k 发射子弹。";
}
//在[a, b)之间产生一个随机整数
int random(int a, int b)
{
int c=(rand() % (a-b))+ a;
return c;
}
//在两个坐标包括的矩形框内随机产生一个坐标
COORD random(COORD a, COORD b)
{
int x=random(a.X, b.X);
int y=random(a.Y, b.Y);
COORD c={x, y};
return c;
}
bool  judgeCoordInFrame(Frame frame, COORD spot)
{
if(spot.X>=frame.position[0].X)
    if(spot.X<=frame.position[1].X)
        if(spot.Y>=frame.position[0].Y)
            if(spot.Y<=frame.position[0].Y)
                return true;
return false;
}
void printCoord(COORD a)
{
cout    <<"( "<<a.X<<" , "<<a.Y<<" )";
}
void printFrameCoord(Frame a)
{
printCoord(a.position[0]);
cout    <<" - ";
printCoord(a.position[1]);
}
int drawMenu()
{
SetPos(30, 1);
cout<<"P l a n e  W a r";
drawRow(3, 0, 79, '-');
drawRow(5, 0, 79, '-');
SetPos(28, 4);
cout<<"w 和 s 选择， k 确定";
SetPos(15, 11);
cout<<"1. 简单的敌人";
SetPos(15, 13);
cout<<"2. 冷酷的敌人";
drawRow(20, 0, 79, '-');
drawRow(22, 0, 79, '-');
SetPos(47, 11);
cout<<"简单的敌人：";
SetPos(51, 13);
cout<<"简单敌人有着较慢的移动速度。";
int j=11;
cout<<">>";
while(1) {
    if( _kbhit() ) {    
        char x=_getch();
        switch (x) {
          case 'w' : {  
            if( j == 13) {
              SetPos(12, j);
              cout<<"　";
              j = 11;
              SetPos(12, j);
              cout<<">>";
              SetPos(51, 13);
              cout<<"　　　　　　　　　　　　";
              SetPos(47, 11);
              cout<<"简单的敌人：";
              SetPos(51, 13);
              cout<<"简单敌人有着较慢的移动速度。";
            }
            break;
          }
          case 's' : {  
            if( j == 11 ) {
              SetPos(12, j);
              cout<<"　";        
              j = 13;
              SetPos(12, j);
              cout<<">>";
              SetPos(51, 13);
               cout<<"　　　　　　　　　　　　　　";
               SetPos(47, 11);
               cout<<"冷酷的敌人：";
               SetPos(51, 13);
               cout<<"冷酷的敌人移动速度较快。";
            }
            break;
          }
          case 'k' : {  
            if (j == 8) return 1; else return 2;
          }
        }
    }
}
}
/*================== the Game Class ==================*/
class Game
{
public:
COORD position[10];
COORD bullet[10];
Frame enemy[8];
int score;
int rank;
int rankf;
string title;
int flag_rank;
 Game ();

//初始化所有
void initPlane();
void initBullet();
void initEnemy();
 //初始化其中一个
//void initThisBullet( COORD );
//void initThisEnemy( Frame );
 void planeMove(char);
void bulletMove();
void enemyMove();

//填充所有
void drawPlane();
void drawPlaneToNull();
void drawBullet();
void drawBulletToNull();
void drawEnemy();
void drawEnemyToNull();
 //填充其中一个
void drawThisBulletToNull( COORD );
void drawThisEnemyToNull( Frame );
 void Pause();
void Playing();
void judgePlane();
void judgeEnemy();
 void Shoot();
 void GameOver();
void printScore();
};
Game::Game()
{
initPlane();
initBullet();
initEnemy();
score = 0;
rank = 25;
rankf = 0;
flag_rank = 0;
}
void Game::initPlane()
{
COORD centren={39, 22};
position[0].X=position[5].X=position[7].X=position[9].X=centren.X;
position[1].X=centren.X-2;  
position[2].X=position[6].X=centren.X-1;
position[3].X=position[8].X=centren.X+1;
position[4].X=centren.X+2;
for(int i=0; i<=4; i++)
    position[i].Y=centren.Y;
for(int i=6; i<=8; i++)
    position[i].Y=centren.Y+1;
position[5].Y=centren.Y-1;
position[9].Y=centren.Y-2;
}
void Game::drawPlane()
{
for(int i=0; i<9; i++)
{
    SetPos(position[i]);
    if(i!=5)
        cout<<"O";
    else if(i==5)
        cout<<"|";      
}
}
void Game::drawPlaneToNull()
{
for(int i=0; i<9; i++)
{
    SetPos(position[i]);
    cout<<" ";
}   
}
void Game::initBullet()
{
for(int i=0; i<10; i++)
    bullet[i].Y = 30;
}
void Game::drawBullet()
{
for(int i=0; i<10; i++)
{
    if( bullet[i].Y != 30)
    {
        SetPos(bullet[i]);
        cout<<"^";  
    }
}
}
void Game::drawBulletToNull()
{
for(int i=0; i<10; i++)
    if( bullet[i].Y != 30 )
        {
            COORD pos={bullet[i].X, bullet[i].Y+1};
            SetPos(pos);
            cout<<" ";
        }   
}
void Game::initEnemy()
{
COORD a={1, 1};
COORD b={45, 15};
for(int i=0; i<8; i++)
{
    enemy[i].position[0] = random(a, b);
    enemy[i].position[1].X = enemy[i].position[0].X + 3;
    enemy[i].position[1].Y = enemy[i].position[0].Y + 2;
}
}
void Game::drawEnemy()
{
for(int i=0; i<8; i++)
    drawFrame(enemy[i].position[0], enemy[i].position[1], '-', '|');
}
void Game::drawEnemyToNull()
{
for(int i=0; i<8; i++)
{
    drawFrame(enemy[i].position[0], enemy[i].position[1], ' ', ' ');
}       
}
void Game::Pause()
{
SetPos(61,2);
cout<<"               ";
SetPos(61,2);
cout<<"暂停中...";
char c=_getch();
while(c!='p')
    c=_getch();
SetPos(61,2);
cout<<"         ";
}
void Game::planeMove(char x)
{
if(x == 'a')
    if(position[1].X != 1)
        for(int i=0; i<=9; i++)
            position[i].X -= 2;

if(x == 's')
    if(position[7].Y != 23)
        for(int i=0; i<=9; i++)
            position[i].Y += 1;
 if(x == 'd')
    if(position[4].X != 47)
        for(int i=0; i<=9; i++)
            position[i].X += 2;
 if(x == 'w')
    if(position[5].Y != 3)
        for(int i=0; i<=9; i++)
            position[i].Y -= 1;
}
void Game::bulletMove()
{
for(int i=0; i<10; i++)
{
    if( bullet[i].Y != 30)
    {
        bullet[i].Y -= 1;
        if( bullet[i].Y == 1 )
        {
            COORD pos={bullet[i].X, bullet[i].Y+1};
            drawThisBulletToNull( pos );
            bullet[i].Y=30;
        }

    }
}
}
void Game::enemyMove()
{
for(int i=0; i<8; i++)
{
    for(int j=0; j<2; j++)
        enemy[i].position[j].Y++;
     if(24 == enemy[i].position[1].Y)
    {
        COORD a={1, 1};
        COORD b={45, 3};
        enemy[i].position[0] = random(a, b);
        enemy[i].position[1].X = enemy[i].position[0].X + 3;
        enemy[i].position[1].Y = enemy[i].position[0].Y + 2;
    }
}
}
void Game::judgePlane()
{
for(int i = 0; i < 8; i++)
    for(int j=0; j<9; j++)
        if(judgeCoordInFrame(enemy[i], position[j]))
        {
            SetPos(62, 1);
            cout<<"坠毁";
            drawFrame(enemy[i], '+', '+');
            Sleep(1000);
            GameOver();
            break;
        }
}
void Game::drawThisBulletToNull( COORD c)
{
SetPos(c);
cout<<" ";
}
void Game::drawThisEnemyToNull( Frame f )
{
drawFrame(f, ' ', ' ');
}
void Game::judgeEnemy()
{
for(int i = 0; i < 8; i++)
    for(int j = 0; j < 10; j++)
        if( judgeCoordInFrame(enemy[i], bullet[j]) )
        {
            score += 5;
            drawThisEnemyToNull( enemy[i] );
            COORD a={1, 1};
            COORD b={45, 3};
            enemy[i].position[0] = random(a, b);
            enemy[i].position[1].X = enemy[i].position[0].X + 3;
            enemy[i].position[1].Y = enemy[i].position[0].Y + 2;                    
            drawThisBulletToNull( bullet[j] );
            bullet[j].Y = 30;
        }
}
void Game::Shoot()
{
for(int i=0; i<10; i++)
    if(bullet[i].Y == 30)
    {
        bullet[i].X = position[5].X;
        bullet[i].Y = position[5].Y-1;
        break;
    }
}
void Game::printScore()
{
if(score == 120 && flag_rank == 0)
{
    rank -= 3;
    flag_rank = 1;
}
 else if( score == 360 && flag_rank == 1)
{
    rank -= 5;
    flag_rank = 2;
}
else if( score == 480 && flag_rank == 2)
{
    rank -= 5;
    flag_rank = 3;
}
int x=rank/5;
SetPos(60, 6);
cout<<score;
 if( rank!=rankf )
{
    SetPos(60, 7);
    if( x == 5)
        title="初级飞行员";
    else if( x == 4)
        title="中级飞行员";
    else if( x == 3)
        title="高级飞行员";
    else if( x == 2 )
        title="王牌飞行员";
    cout<<title;
}
rankf = rank;
}
void Game::Playing()
{
//HANDLE MFUN;
//MFUN= CreateThread(NULL, 0, MusicFun, NULL, 0, NULL); 
 drawEnemy();
drawPlane();
 int flag_bullet = 0;
int flag_enemy = 0;
 while(1)
{
    Sleep(8);
    if(_kbhit())
    {
        char x = _getch();
        if ('a' == x || 's' == x || 'd' == x || 'w' == x)
        {
            drawPlaneToNull();
            planeMove(x);
            drawPlane();
            judgePlane();
        }           
        else if ('p' == x)
            Pause();
        else if( 'k' == x)
            Shoot();
        else if( 'e' == x)
        {
            //CloseHandle(MFUN);
            GameOver();
            break;
        }

    }
    /* 处理子弹 */
    if( 0 == flag_bullet )
    {
        bulletMove();
        drawBulletToNull();
        drawBullet();
        judgeEnemy();
    }           
    flag_bullet++;
    if( 5 == flag_bullet )
        flag_bullet = 0;
     /* 处理敌人 */
    if( 0 == flag_enemy )
    {
        drawEnemyToNull();
        enemyMove();            
        drawEnemy();
        judgePlane();
    }
    flag_enemy++;
    if( flag_enemy >= rank )
        flag_enemy = 0;
     /* 输出得分 */
    printScore();
}
}
void Game::GameOver()
{
system("cls");              
COORD p1={28,9};
COORD p2={53,15};
drawFrame(p1, p2, '=', '|');
SetPos(36,12);
string str="Game Over!";
for(int i=0; i<str.size(); i++)
{
    Sleep(80);
    cout<<str[i];
}
Sleep(1000);
system("cls");
drawFrame(p1, p2, '=', '|');
SetPos(31, 11);
cout<<"击落敌机："<<score/5<<" 架";
SetPos(31, 12);
cout<<"得　　分："<<score;
SetPos(31, 13);
cout<<"获得称号："<<title;
SetPos(30, 16);
Sleep(1000);
cout<<"继续？ 是（y）| 否（n）";
as:
char x=_getch();
if (x == 'n')
    exit(0);
else if (x == 'y')
{
    system("cls");
    Game game;
    int a = drawMenu();
    if(a == 2)
        game.rank = 20;
    system("cls");
    drawPlaying();
    game.Playing();
}
else goto as;
}
/*================== the main function ==================*/
int main()
{
//游戏准备
cout<<"作者：金SB(jinhongyi · 金泓镒)";
srand((int)time(0));    //随机种子
HideCursor();   //隐藏光标

Game game;
int a = drawMenu();
if(a == 2)
    game.rank = 20;
system("cls");
drawPlaying();
game.Playing();
}