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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