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asteroid.cpp
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asteroid.cpp
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#include <iostream>
#include <vector>
#include <cstdlib>
#include <ctime>
using namespace std;
const int WIDTH = 50;
const int HEIGHT = 20;
struct Point
{
int x;
int y;
};
class Asteroid
{
private:
Point position;
public:
Asteroid()
{
srand(time(NULL));
position.x = rand() % WIDTH;
position.y = 0;
}
Point getPosition() const
{
return position;
}
void move()
{
position.y++;
}
};
class Ship
{
private:
Point position;
int score;
public:
Ship()
{
position.x = WIDTH / 2;
position.y = HEIGHT - 1;
score = 0;
}
Point getPosition() const
{
return position;
}
int getScore() const
{
return score;
}
void moveLeft()
{
position.x--;
if (position.x < 0)
{
position.x = 0;
}
}
void moveRight()
{
position.x++;
if (position.x >= WIDTH)
{
position.x = WIDTH - 1;
}
}
void increaseScore()
{
score++;
}
};
int main()
{
vector<Asteroid> asteroids;
Ship ship;
bool game_over = false;
while (!game_over)
{
// Clear screen
system("clear");
// Display game board
cout << "Score: " << ship.getScore() << endl;
for (int i = 0; i < HEIGHT; i++)
{
for (int j = 0; j < WIDTH; j++)
{
bool asteroid_here = false;
Point current_point = {j, i};
for (auto asteroid : asteroids)
{
if (asteroid.getPosition().x == j && asteroid.getPosition().y == i)
{
asteroid_here = true;
break;
}
}
if (current_point.x == ship.getPosition().x && current_point.y == ship.getPosition().y)
{
cout << "O";
}
else if (asteroid_here)
{
cout << "*";
}
else
{
cout << " ";
}
}
cout << endl;
}
// Move asteroids
for (int i = 0; i < asteroids.size(); i++)
{
asteroids[i].move();
if (asteroids[i].getPosition().y == HEIGHT - 1)
{
asteroids.erase(asteroids.begin() + i);
}
}
// Add new asteroid
if (rand() % 10 == 0)
{
asteroids.push_back(Asteroid());
}
// Move ship
char input;
cin >> input;
switch (input)
{
case 'a':
ship.moveLeft();
break;
case 'd':
ship.moveRight();
break;
}
// Check collision
for (auto asteroid : asteroids)
{
if (asteroid.getPosition().y == ship.getPosition().y && asteroid.getPosition().x == ship.getPosition().x)
{
game_over = true;
break;
}
}
// Increase score
for (auto asteroid : asteroids)
{
if (asteroid.getPosition().y == HEIGHT - 1)
{
ship.increaseScore();
}
}
// Delay for smooth gameplay
for (int i = 0; i < 1000000; i++)
{
// Do nothing
}
}
// Game over
cout << "Game over! Final score" << endl;
cout << " is " << ship.getScore() << endl;
return 0;
}