File content as of revision 28:4786e81ce3e3:

#include "Alien.h"


Alien::Alien()
{

}

Alien::~Alien()
{

}

void Alien::init(int size,int speed)
{
    
    _size = size;
    
    
   
    
    
    srand(time(NULL));
    int direction = rand() % 8; // randomise initial direction. 

    // 4 possibilities. Get random modulo and set velocities accordingly
    if (direction == 0) {
        _velocity.x = speed;
        _velocity.y = speed;
    } else if (direction == 1) {
        _velocity.x = speed;
        _velocity.y = -speed;
    } else if (direction == 2) {
        _velocity.x = speed;
        _velocity.y = speed;
    } else {
        _velocity.x = -speed;
        _velocity.y = -speed;
    }
}
   
   
   void Alien::draw(N5110 &lcd)
{
    lcd.drawRect(_x,_y,_size,_size,FILL_BLACK);
}
 
    void Alien::update()
{
    _x += _velocity.x;
    _y += _velocity.y;
    }
    
    void Alien::set_velocity(Vector2D v)
{
    _velocity.x = v.x;
    _velocity.y = v.y;
}

Vector2D Alien::get_velocity()
{
    Vector2D v = {_velocity.x,_velocity.y};
    return v;
}

Vector2D Alien::get_pos()
{
    Vector2D p = {_x,_y};
    return p;
}