File content as of revision 137:fe80c0f2da9d:

#include"SpaceEngine.h"

SpaceEngine::SpaceEngine()
{
}
SpaceEngine::~SpaceEngine()
{
}



void SpaceEngine::init(int x_spaceship,int y_spaceship, int x_bullet, int y_bullet,int fired_bullet, int x_alien,int y_alien, int speed_alien, int speed_bullet, int speed_spaceship)
{

    _x_spaceship=x_spaceship;
    _y_spaceship=y_spaceship;
    _x_bullet=x_bullet;
    _y_bullet=y_bullet;
    _fired_bullet= fired_bullet;
    _x_alien= x_alien;
    _y_alien= y_alien;
    _speed_alien= speed_alien;
    _speed_bullet=speed_bullet;
    _speed_spaceship=speed_spaceship;
    _bullet.init(_x_bullet, _y_bullet, speed_bullet,fired_bullet);
    _alien.init (_x_alien, _y_alien,_speed_alien);
    _spaceship.init( _x_spaceship, _y_spaceship, _speed_spaceship);
    _alien_killed = 0;
}

void SpaceEngine::read_input(Gamepad &pad)
{

    _d = pad.get_direction();
    _mag = pad.get_mag();

}

void  SpaceEngine::draw(N5110 &lcd)
{
    _bullet.draw(lcd);

    if (_alien.isAlive() == true) {
        _alien.draw(lcd);
    } else { // alien is dead
        int y_pos = (rand() % 30) + 10; // random number 10 to 39
        _alien.init(70,y_pos,1);
        wait(0.2);
    }

    _spaceship.draw(lcd);
    lcd.printString("alien_killed",0,0);
    char kills[14];
    sprintf(kills,"%2d",_alien_killed);
    lcd.printString(kills,70,0);

}


void SpaceEngine::update(Gamepad &pad)
{
    _bullet.update(_d,_mag);
    _alien.update(_d,_mag);
    _spaceship.update(_d,_mag);
    check_space_collision(pad);
    _y_alien = _alien.get_pos_y();
    _x_alien = _alien.get_pos_x();
    _y_bullet = _bullet.get_pos_y();
    _x_bullet = _bullet.get_pos_x();
    if(_d==E) {
        _fired_bullet=1;
        }
 _bullet.set_pos(_spaceship.get_pos_x()+33, _spaceship.get_pos_y());
    }
    
    
    
void SpaceEngine::check_space_collision(Gamepad &pad) {

        if(_x_bullet >= 65 && _x_bullet <= 68 && _y_bullet >= _y_alien-5 && _y_bullet <= _y_alien+15) {
            _alien.setAlive(false);
            _alien_killed++;
        }

    }