#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。";
}

//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" << "制作人:粥亦ZFYN";
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. 雷霆战机";
SetPos(15, 13);
cout << "2. 黑鹰战机";
drawRow(20, 0, 79, '-');
drawRow(22, 0, 79, '-');
SetPos(47, 11);
cout << "雷霆战机：";
SetPos(51, 13);
cout << "雷霆战机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 << "雷霆战机：";
SetPos(51, 13);
cout << "雷霆战机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 << "黑鹰战机：";
SetPos(51, 13);
cout << "黑鹰战机移动速度较快。";
}
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 << "0";
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 = "天启飞行员";
else if ( x == 3)
title = "猛犸飞行员";
else if ( x == 2 )
title = "帝王飞行员";
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
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();
}