12 c++版本的坦克大战

前言

呵呵 这大概是 大学里面的 c++ 贪吃蛇了吧

有一些 面向对象的理解, 但是不多

这里 具体的实现 就不赘述, 仅仅是 发一下代码 以及 具体的使用

坦克大战

#include<iostream>
#include<windows.h>
#include<conio.h>
#include<ctime>
#include<string>
#include<list>
using namespace std;
#define N 4
class Tank_War;
void set_pos(int x, int y);
class Object
{	
protected:
	int x, y;
	int dir;
	int life;

public:
	Object() : x(0), y(0), dir(-1),life(1)	{}
	Object(int x, int y, int dir, int life) : x(x), y(y), dir(dir), life(life) {}	 
	void move();
	void paint()  {	}
	void reduce_blood()	{	life -= 1; 	}
	void increase_blood()	{	life += 1; 	}
	bool is_failure();
	virtual void print(){cout<<x<<"--"<<y<<"=="<<life<<"--"<<endl;}
};

class Missile : public Object
{
public:
	Missile() : Object() {}
	Missile(int x, int y, int dir, int life) : Object(x, y, dir, life) {}
	bool move();
	void paint(string icon);
	int get_x()const	{	return x;	}
	int get_y()const	{	return y;	}
	void set_info(int x, int y, int dir) {	this -> x = x; this -> y = y; this -> dir = dir;	};
	bool operator==(const Missile&_x){return (x==_x.x && y==_x.y&&dir==_x.dir);		}		//list中remove是需要重载==
};

class Tank : public Object
{
private:
	int pre_dir;
	list<Missile> missile_list;

public:
	Tank() : Object(), pre_dir(-1) {}
	Tank(int x, int y, int dir, int life) : Object(x, y, dir,life) {pre_dir = dir;};
	void del_before_move();
	void move(Tank_War &game, string name);
	void paint(string icon);
	int get_x()	const	{	return x;	}
	int get_y()	const	{	return y;	}
	int get_dir()const	{	return dir;	}
	void set_dir(int dir){	pre_dir = this -> dir;	this -> dir = dir;	}
	void set_location(int x, int y){	this -> x = x;	this -> y = y;	}
	void emission_missile();
	void missile_move();
	void check_missile(Tank_War &game, string name);
	bool check_missile_strike(Missile& missile, Tank& tank);
//	bool check_is_right(int x, int y, int dir);
	int distance_squre(int x_1, int y_1, int x_2, int y_2);
	int distance_squre(Tank& tank_2);
	bool operator==(const Tank&_x){return (x==_x.x && y==_x.y&&dir==_x.dir);		}
};


class Tank_War
{
private:
	Tank lead;
	list<Tank> enemy_list;
	int tot;
	int grade;
	bool over;

public:
	Tank_War():lead(28, 21, -1, 4), grade(0), tot(0), over(false) {};
	int game();
	void game_over()	{	over = true;	}
	int draw_menu();
	void draw_game_interface();
	Tank* get_lead()	{	return &lead;	}
	list<Tank>::iterator get_enemy_list_begin()	{	return enemy_list.begin();	}
	list<Tank>::iterator get_enemy_list_end()	{	return enemy_list.end();	}
	Tank* create_enemy();
	void enemy_move();
//	bool check_is_right(int x, int y, int dir);
	bool can_move(Tank &tank, string name);
	bool can_move(Tank& x, Tank& y);
	void check_missile(string name);
	void supply_enemy();
	int get_random_direction();
	list<Tank>::iterator remove_from_enemy_list(list<Tank>::iterator it)	{	return enemy_list.erase(it);		}
	void reduce_tot()	{	tot--;	}
	void increase_grade()	{	grade+=5;set_pos(68, 3);cout<<grade;	}
};


int main()
{
	Tank_War g;
	g.game();

	system("pause");
	return 0;
}


int Tank_War::game()
{
	bool is_move = true;
	int speed = draw_menu();
	system("cls");
	draw_game_interface();
	supply_enemy();
	while(!over)
	{
		if(!lead.is_failure())
		{
			if(tot<N) 	supply_enemy();
			if(GetAsyncKeyState(VK_UP))	lead.set_dir(-1);
			else if(GetAsyncKeyState(VK_DOWN))	lead.set_dir(1);
			else if(GetAsyncKeyState(VK_LEFT))	lead.set_dir(-2);
			else if(GetAsyncKeyState(VK_RIGHT))	lead.set_dir(2);
			else is_move = false;
			if(is_move) lead.move(*this, "lead");	
			enemy_move();
			if(GetAsyncKeyState(VK_RETURN))	lead.emission_missile();	
			if(enemy_list.size() != 0)
			{
			check_missile("lead");
			check_missile("enemy");
			}		
		}
		is_move = true;
		lead.missile_move();

		Sleep(100);
	}

	return 0;
}

void set_pos(int x, int y)
{
	HANDLE cursor = GetStdHandle(STD_OUTPUT_HANDLE);
	COORD position = {x, y};
	SetConsoleCursorPosition(cursor, position);
}

void draw_rect(int x_1, int y_1, int x_2, int y_2, string icon)
{
	if(x_1 > x_2)	swap(x_1, x_2);
	if(y_1 > y_2)	swap(y_1, y_2);
	int n_1 = y_2 - y_1 + 1;
	int n_2 = (x_2 - x_1)/icon.size() + 1;
	for(int i=0; i<n_1; i++)
	{
		set_pos(x_1, y_1+i);
		for(int j=0; j<n_2; j++)
			cout<<icon;
	}
} 

int Tank_War::draw_menu()
{
	int speed = 0;

	draw_rect(0, 3, 79, 3, "-");
	draw_rect(0, 5, 79, 5, "-");
	set_pos(25, 2);
	cout<<"welcome to airplane war games ";
	set_pos(25, 4);
	cout<<"↑ up   ↓ down   enter confirm";
	set_pos(20, 10);
	cout<<"1.easy		easy mode enemy move slow";
	set_pos(20, 14);
	cout<<"2.difficult		difficult mode enemy move fast";
	set_pos(20, 20);
	cout<<"made by He Xiong .   begin at 2014_01_08";
	draw_rect(0, 19, 79, 19, "-");
	draw_rect(0, 22, 79, 22, "-");

	set_pos(18, 10);
	cout<<"->";
	int y = 10;
	while(true)
	{
		if(GetAsyncKeyState(VK_UP) || GetAsyncKeyState(VK_DOWN))
		{
			if(y == 10)
			{
				set_pos(18, y);		cout<<"  ";
				y = 14;
				set_pos(18, y);		cout<<"->";
				speed = 1;
			}
			else if(y == 14)
			{
				set_pos(18, y);		cout<<"  ";
				y = 10;
				set_pos(18, y);		cout<<"->";
				speed = 0;
			}
		}
		else if(GetAsyncKeyState(VK_RETURN))		break;
		Sleep(200);
	}
	return speed;
}

void Tank_War::draw_game_interface()
{
	draw_rect(0, 0, 78, 0, "◆");
	draw_rect(0, 23, 78, 23, "◆");
	draw_rect(0, 1, 0, 22, "◆");
	draw_rect(58, 1, 58, 22, "◆");
	draw_rect(78, 1, 78, 22, "◆");
	int x = 62;
	set_pos(x, 3);		cout<<"GRADE:0";
	set_pos(x, 5);		cout<<"LEVEL:1";
	set_pos(62, 7);		cout<<"↑ UP";
	set_pos(x, 9);		cout<<"↓ down";
	set_pos(x, 11);		cout<<"← left";
	set_pos(x, 13);		cout<<"→ right";
	set_pos(x, 17);		cout<<"life:■■";
	set_pos(x+5, 18);	cout<<"■■";
	lead.set_location(28, 10);
	lead.paint("■");
	set_pos(0, 0);
}

Tank* Tank_War::create_enemy()
{
	int n = 0, k = 0;
	int x = 0, y = 0, dir = 0;
	Tank *p = NULL;
	srand((unsigned)time(NULL));
	while(k != 4)
	{
		n = rand()%2;
		if(n%2 == 0)
		{
			x = 4;			n = rand()%2;
			if(n%2 == 0)	y = 2;
			else			y = 21;
		}
		else
		{
			x = 54;			n = rand()%2;
			if(n%2 == 0)	y = 2;
			else			y = 21;
		}
		dir = get_random_direction();
		p = new Tank(x, y, dir, 1);
		enemy_list.push_back(*p);
		if(can_move(*p, "enemy")){	break;	}
		else	{	enemy_list.pop_back();	delete p;	p = NULL;	}
		k++;
	}
	return p;
}
/*
bool Tank::check_is_right(int x, int y, int dir)
{
	if(distance_squre(x, y, this -> x, this -> y) > 9)
	return true;
	else return false;
}
*//*
bool Tank_War::check_is_right(int x, int y, int dir)
{
	int flag = 0;
	if(!lead.check_is_right(x, y, dir))	++flag;
	list<Tank>::iterator it = NULL;
	for(it=enemy_list.begin(); it!=enemy_list.end(); ++it)
		if(!it -> check_is_right(x, y, dir))	++flag;
	if(flag == 0)	return true;
	else			return false;
}
*/
void Tank_War::supply_enemy()
{
	int n = N - tot;
	Tank *p = NULL;
	for(int i=0; i<n; i++)
	{
		if((p = create_enemy()) != NULL)
		{
		tot++;			p -> paint("■");
		delete p;		p = NULL;
		}
	}
}

void Missile::paint(string icon)
{
	set_pos(x, y);	cout<<icon;
}

void Tank::paint(string icon)
{
	draw_rect(x-2, y, x+2, y, icon);
	draw_rect(x, y-1, x, y+1, icon);
	if((dir+2)%2 == 0)
	{
		set_pos(x-dir, y-1);	cout<<icon;
		set_pos(x-dir, y+1);	cout<<icon;
	}
	else if((dir+2)%2 == 1)
	{
		set_pos(x-2, y-dir);	cout<<icon;
		set_pos(x+2, y-dir);	cout<<icon;
	}

/*					//不是很好,前面两点的会闪
	set_pos(x-2, y-1);
	cout<<"■■■";
	set_pos(x-2, y);
	cout<<"■■■";
	set_pos(x-2, y+1);
	cout<<"■■■";
	if((dir+2)%2 == 0)
	{
		set_pos(x+dir, y-1);	cout<<"  ";
		set_pos(x+dir, y+1);	cout<<"  ";
		draw_rect(x-dir, y-1, x-dir, y+1);
	}
	else if((dir+2)%2 == 1)
	{
		set_pos(x-1, y+dir);	cout<<"  ";
		set_pos(x+1, y+dir);	cout<<"  ";
		draw_rect(x-2, y-dir, x+2, y-dir);
	}
*/
}

bool Missile::move()
{
	if(x>2 && x<56 && y>1 && y <22)
	{
	if((dir+2)%2 == 0)
	{
		set_pos(x, y);	cout<<"  ";
		x += dir;		paint("●");
	}
	else if((dir+2)%2 == 1)
	{
		set_pos(x, y);	cout<<"  ";
		y += dir;		paint("●");
	}
	return true;
	}
	else
	{
		if(x==0 || x==58 || y==0 || y==23)	;
		else
		{	
			set_pos(x, y);	cout<<"  ";
		}
		return false;
	}
}

void Tank::move(Tank_War& game, string name)
{
	if(x>2 && x<56 && y>1 && y <22)
	if((dir+2)%2 == 0)
	{
		Tank p(x+dir, y, dir, 1);
		if(x+dir>2 && x+dir<56)
		{
		if(game.can_move(p, name))
		{
		//draw_rect(x-dir, y-1, x-dir, y+1, "  ");
		//draw_rect(x+dir, y, x+dir, y, "  ");	//为了解决在角落是的BUG
		del_before_move();
		x+=dir;
		paint("■");
		}
		}
		else 
		{
			if(pre_dir > 0)	draw_rect(x+dir, y-1, x+dir, y-1, "  ");
			else	draw_rect(x+dir, y+1, x+dir, y+1, "  ");
			paint("■");
		}
	}
	else
	{
		Tank p(x, y+dir, dir, 1);
		if(y+dir>1 && y+dir<22)
		{
		if(game.can_move(p, name))
		{
		del_before_move();
		y+=dir;
		paint("■");
		}
		}
		else 
		{
			if(pre_dir > 0)	draw_rect(x-2, y+dir, x-2, y+dir, "  ");
			else	draw_rect(x+2, y+dir, x+2, y+dir, "  ");
			paint("■");
		}
	}

}

void Tank::del_before_move()
{
	if(pre_dir == dir)	
		if((dir + 2) % 2 == 0)	draw_rect(x-dir, y-1, x-dir, y+1, "  ");
		else	draw_rect(x-2 , y-dir, x+2, y-dir, "  ");
	else if(pre_dir == -dir)	
		if((dir + 2) % 2 == 0)	draw_rect(x+pre_dir, y, x+pre_dir, y, "  ");
		else	draw_rect(x , y+pre_dir, x, y+pre_dir, "  ");
	else if(pre_dir == 2/dir)	
		if((dir + 2) % 2 == 0)	draw_rect(x-dir, y, x-dir, y-pre_dir, "  ");
		else	draw_rect(x, y-dir, x-pre_dir, y-dir, "  ");
	else
		if((dir + 2) % 2 == 0)	draw_rect(x-dir, y, x-dir, y-pre_dir, "  ");
		else	draw_rect(x, y-dir, x-pre_dir, y-dir, "  ");
}

bool Tank_War::can_move(Tank& tank, string name)
{
	if(name == "lead")
	{
		list<Tank>::iterator it = NULL;
		if(enemy_list.size() != 0)
		{
			for(it=enemy_list.begin(); it!=enemy_list.end(); it++)
			{
				if(!can_move(*it, tank))	return false;
			}
		}
	}
	else
	{
		int flag = 0;
		if(!can_move(lead, tank))	return false;
		list<Tank>::iterator it = NULL;
		if(enemy_list.size() != 0)
		{
			for(it=enemy_list.begin(); it!=enemy_list.end(); it++)
			{	
				if(!can_move(*it, tank)) flag++;
				/*
				if(tank == *it)	
				{
					if(flag)	flag = false;
					else		return false;
				}
				else
				{
					if(!can_move(tank,tank.get_dir() , *it))	return false;
				}
				*/
			}
			if(flag!=1) return false;
			else return true;
		}
	}

	return true;
}

bool Tank_War::can_move(Tank& tank_1, Tank& tank_2)
{
	int x_1 = 0, x_2 = 0, y_1 = 0, y_2 = 0;
	int dis = tank_1.distance_squre(tank_2);
	if(dis > 8)	return true;

	else if(dis == 8)
	{
		if((tank_1.get_dir()+2)%2 == 0)
		{
		if(tank_1.get_dir() > 0)	
		{
			x_1 = tank_1.get_x();	x_2 = tank_2.get_x();
			y_1 = tank_1.get_y();	y_2 = tank_2.get_y();
		}
		else
		{
			x_1 = tank_2.get_x();	x_2 = tank_1.get_x();
			y_1 = tank_2.get_y();	y_2 = tank_1.get_y();
		}
		if(x_1 > x_2)
		{
			if(y_1 > y_2)
			{
			if(tank_2.get_dir() == tank_1.get_dir() || tank_2.get_dir() == 2/tank_1.get_dir())	return true;
			else	return false;
			}
			else
			{
			if(tank_2.get_dir() == tank_1.get_dir() || tank_2.get_dir() == -2/tank_1.get_dir())	return true;
			else	return false;
			}
		}
		else		return true;

		}
		else
		{
		if(tank_1.get_dir() > 0)	
		{
			x_1 = tank_1.get_x();	x_2 = tank_2.get_x();
			y_1 = tank_1.get_y();	y_2 = tank_2.get_y();
		}
		else
		{
			x_1 = tank_2.get_x();	x_2 = tank_1.get_x();
			y_1 = tank_2.get_y();	y_2 = tank_1.get_y();
		}
		if(y_1 > y_2)
		{
			if(x_1 > x_2)
			{
			if(tank_2.get_dir() == tank_1.get_dir() || tank_2.get_dir() == 2/tank_1.get_dir())	return true;
			else	return false;
			}
			else
			{
			if(tank_2.get_dir() == tank_1.get_dir() || tank_2.get_dir() == -2/tank_1.get_dir())	return true;
			else	return false;
			}
		}
		else		return true;
		}
	}

	else if(dis == 5)	
	{	//static int d=0;d++;set_pos(20,20+d);cout<<dis<<"D"<<endl;
		if((tank_1.get_dir()+2)%2 == 0)
		{
		if(tank_1.get_dir() > 0)	
		{
			x_1 = tank_2.get_x();	x_2 = tank_1.get_x();
			y_1 = tank_2.get_y();	y_2 = tank_1.get_y();
		}
		else
		{
			x_1 = tank_1.get_x();	x_2 = tank_2.get_x();
			y_1 = tank_1.get_y();	y_2 = tank_2.get_y();
		}
		if(x_1 > x_2)
		{
			if(y_1 > y_2)
			{
			if(tank_2.get_dir() == -tank_1.get_dir() || tank_2.get_dir() == -2/tank_1.get_dir())	return true;
			else	return false;
			}
			else
			{
			if(tank_2.get_dir() == -tank_1.get_dir() || tank_2.get_dir() == -2/tank_1.get_dir())	return true;
			else	return false;
			}
		}
		else		return false;

		}
		else
		{
		if(tank_1.get_dir() < 0)	
		{
			x_1 = tank_1.get_x();	x_2 = tank_2.get_x();
			y_1 = tank_1.get_y();	y_2 = tank_2.get_y();
		}
		else
		{
			x_1 = tank_2.get_x();	x_2 = tank_1.get_x();
			y_1 = tank_2.get_y();	y_2 = tank_1.get_y();
		}
		if(y_1 > y_2)
		{
			if(x_1 > x_2)
			{
			if(tank_2.get_dir() == -tank_1.get_dir() || tank_2.get_dir() == -2/tank_1.get_dir())	return true;
			else	return false;
			}
			else
			{
			if(tank_2.get_dir() == -tank_1.get_dir() || tank_2.get_dir() == 2/tank_1.get_dir())	return true;
			else	return false;
			}
		}
		else		return false;
		}
	}

	else		return false;
}

bool Object::is_failure()
{
	if(life != 0)	return false;
	else			return true;
}

void Tank::emission_missile()
{
		Missile p;
		if((dir+2)%2 == 0)
			p.set_info(x+2*dir, y, dir);
		else if((dir+2)%2 == 1)
			p.set_info(x, y+2*dir, dir);
		missile_list.push_back(p);
		if(p.get_x()==0 || p.get_x()==58 || p.get_y()==0 || p.get_y()==23)	;
		else			p.paint("■");
		Sleep(100);
}

void Tank::missile_move()
{
	list<Missile>::iterator it = NULL;
	if(missile_list.size() != 0)			//这里一定要判空
	for(it=missile_list.begin(); it!=missile_list.end(); it++)
	{
	if(!it -> move())
		it = missile_list.erase(it);		//删除此步后当前迭代器会"失效"
	}
}

void Tank_War::check_missile(string name)
{
	if(name == "lead")
		lead.check_missile(*this, "lead");
	else
	{
		list<Tank>::iterator it = NULL;
		for(it = enemy_list.begin(); it != enemy_list.end(); it++)
		it -> check_missile(*this, "enemy");
	}
}

void Tank::check_missile(Tank_War &game, string name)
{
	list<Missile>::iterator it_1 = NULL;
	list<Tank>::iterator it_2 = NULL;
	if(name == "lead")
	{
		if(missile_list.size() != 0)
		for(it_1=missile_list.begin(); it_1!= missile_list.end(); it_1++)
		{
			for(it_2=game.get_enemy_list_begin(); it_2!=game.get_enemy_list_end(); it_2++)
				if(it_1 != missile_list.end())
				if(check_missile_strike(*it_1, *it_2))	
				{
					it_1 = missile_list.erase(it_1);
					if(it_2 -> is_failure())
					{
					game.increase_grade();
					it_2 -> paint("  ");
					it_2 = game.remove_from_enemy_list(it_2);
					game.reduce_tot();
					}
				}	
		}
	}
	else
	{
			if(missile_list.size() != 0)
			{
				if(it_1 != missile_list.end())
				for(it_1=missile_list.begin(); it_1!= missile_list.end(); it_1++)
				if(check_missile_strike(*it_1, *(game.get_lead())))	
				{
					it_1 = missile_list.erase(it_1);
					if(game.get_lead() -> is_failure())		game.game_over();
					else 
					{
						game.get_lead() -> paint("  ");
						game.get_lead() -> set_location(28, 10);
						game.get_lead() -> paint("■");
					}
				}
				if(it_1 != missile_list.end())
				for(it_1=missile_list.begin(); it_1!= missile_list.end(); it_1++)
				{
				for(it_2=game.get_enemy_list_begin(); it_2!=game.get_enemy_list_end(); it_2++)
				if(check_missile_strike(*it_1, *it_2))	
				{
					it_1 = missile_list.erase(it_1);
					it_2 -> increase_blood();
				}
				}
			}
	}
}

bool Tank::check_missile_strike(Missile& missile, Tank& tank)
{
	int dis = 0;
	if((dis = distance_squre(missile.get_x(), missile.get_y(), tank.get_x(), tank.get_y())) <= 2)
	{
		if(dis == 2)
		{
		}
		else
		{
			missile.reduce_blood();
			tank.reduce_blood();
			missile.paint("  ");
			return true;
		}
	}
	return false;
}

void Tank_War::enemy_move()
{
	int n = 0;
	srand((unsigned)time(NULL));
	list<Tank>::iterator it = NULL;
	if(enemy_list.size() != 0)
	{
		for(it=enemy_list.begin(); it != enemy_list.end(); it++)
		{
			it -> missile_move();
			n = rand()%3;
			if(n == 0)
			if(can_move(*it, "enemy"))
			{
				n = get_random_direction();
				it -> set_dir(n);
				it->move(*this, "enemy");
			}
			n = rand()%8;
			if(n == 0)	it -> emission_missile();
		}
	}
}

int Tank::distance_squre(int x_1, int y_1, int x_2, int y_2)
{
	return (x_2 - x_1) * (x_2 - x_1) + (y_2 - y_1) * (y_2 - y_1);
}

int Tank::distance_squre(Tank& tank_2)
{
	return distance_squre(x/2, y, tank_2.get_x()/2, tank_2.get_y());
}

int Tank_War::get_random_direction()
{
	int n = 0;
	srand((unsigned)time(NULL));
	if((n = rand()%4) < 2)		n -= 2;
	else		n -= 1;
	return n;
}

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