File content as of revision 150:bd02678bfdb1:

#include "Alien.h"

//nothing to be done here.
Alien::Alien()  //constructor of class Alien
{

}

Alien::~Alien() //Destructor of class Alien
{

}

//intialise the prameters of class Alien
void Alien::init(int x_alien,int y_alien, int speed_alien)
{
    _x_alien = x_alien;  // the position of alien at x-cooridante.
    _y_alien = y_alien; //  the position of alien at y-cooridante.
    _speed_alien = speed_alien; // the speed of the alien.
    _alive = true;             //intialise the alive alien.

}

// void function to draw the alien by using N5110 library
void Alien::draw(N5110 &lcd)
{
    //drawing the alien by using lcd.drawSprite.
    lcd.drawSprite(_x_alien,_y_alien,32,32,(int *)alien2);
}

void  Alien::update(Direction d,float mag)
{
    _speed_alien = int(mag*10.0f);

    srand(time(NULL));   // lets the alien move randomly.
    _y_alien += rand() % 17 - 8;  // random movment
    if(_y_alien>=30) { //if statment to check the position of the alien at y_cooridante.
        _y_alien=30;
        //printif("alien at y_cooridante equal 30\n")
    } else if(_y_alien<=0) {
        _y_alien=0;
        //printif("alien at y_cooridante equal 0\n")
    }
}

// to get the position of the alien at x_cooridante .
int  Alien::get_pos_x()
{
    return _x_alien;   // retutn x_corridante of the alien in integer.
}

//function to get the position of the alien at y_cooridante.
int Alien::get_pos_y()
{
    return _y_alien; // retutn y_corridante of the alien in integer.
}

//void function to set the position of the alien in x-cooridante and y_cooridante.
void Alien::set_pos(int x, int y)
{
    _x_alien = x;    //the position of the alien at x-coordniate is equal to x.
    _y_alien = y;    //the position of the alien at y-coordniate is equal to y.
}

//void function to add the scores of the alien.
void Alien::add_score()
{
    _score++;     // increment the scores by 1.
    //printf("scores increament by 1\n")
}

//void function to get the scores of the alien.
int Alien::get_score()
{
    return _score;    //return the numbers of the scores which achived by the alien.
    //printf("returned scores\n")
}

// this bool function to check if the alive alien
bool Alien::isAlive()
{
//return the alive alien in bool.
    return _alive;
//printf("alive alien is true\n")
}

//void function to set up the alive alien.
void Alien::setAlive(bool alive)
{
    _alive = alive;
    //printf("alive alien is set up\n")
}