Alien.cpp

00001 #include "Alien.h"
00002 
00003 //nothing to be done here.
00004 Alien::Alien()  //constructor of class Alien
00005 {
00006 
00007 }
00008 
00009 Alien::~Alien() //Destructor of class Alien
00010 {
00011 
00012 }
00013 
00014 //intialise the prameters of class Alien
00015 void Alien::init(int x_alien,int y_alien, int speed_alien)
00016 {
00017     _x_alien = x_alien;  // the position of alien at x-cooridante.
00018     _y_alien = y_alien; //  the position of alien at y-cooridante.
00019     _speed_alien = speed_alien; // the speed of the alien.
00020     _alive = true;             //intialise the alive alien.
00021 
00022 }
00023 
00024 // void function to draw the alien by using N5110 library
00025 void Alien::draw(N5110 &lcd)
00026 {
00027     //drawing the alien by using lcd.drawSprite.
00028     lcd.drawSprite(_x_alien,_y_alien,32,32,(int *)alien2);
00029 }
00030 
00031 void  Alien::update(Direction d,float mag)
00032 {
00033     _speed_alien = int(mag*10.0f);
00034 
00035     srand(time(NULL));   // lets the alien move randomly.
00036     _y_alien += rand() % 17 - 8;  // random movment
00037     if(_y_alien>=30) { //if statment to check the position of the alien at y_cooridante.
00038         _y_alien=30;
00039         //printif("alien at y_cooridante equal 30\n")
00040     } else if(_y_alien<=0) {
00041         _y_alien=0;
00042         //printif("alien at y_cooridante equal 0\n")
00043     }
00044 }
00045 
00046 // to get the position of the alien at x_cooridante .
00047 int  Alien::get_pos_x()
00048 {
00049     return _x_alien;   // retutn x_corridante of the alien in integer.
00050 }
00051 
00052 //function to get the position of the alien at y_cooridante.
00053 int Alien::get_pos_y()
00054 {
00055     return _y_alien; // retutn y_corridante of the alien in integer.
00056 }
00057 
00058 //void function to set the position of the alien in x-cooridante and y_cooridante.
00059 void Alien::set_pos(int x, int y)
00060 {
00061     _x_alien = x;    //the position of the alien at x-coordniate is equal to x.
00062     _y_alien = y;    //the position of the alien at y-coordniate is equal to y.
00063 }
00064 
00065 //void function to add the scores of the alien.
00066 void Alien::add_score()
00067 {
00068     _score++;     // increment the scores by 1.
00069     //printf("scores increament by 1\n")
00070 }
00071 
00072 //void function to get the scores of the alien.
00073 int Alien::get_score()
00074 {
00075     return _score;    //return the numbers of the scores which achived by the alien.
00076     //printf("returned scores\n")
00077 }
00078 
00079 // this bool function to check if the alive alien
00080 bool Alien::isAlive()
00081 {
00082 //return the alive alien in bool.
00083     return _alive;
00084 //printf("alive alien is true\n")
00085 }
00086 
00087 //void function to set up the alive alien.
00088 void Alien::setAlive(bool alive)
00089 {
00090     _alive = alive;
00091     //printf("alive alien is set up\n")
00092 }
00093 
00094 
00095 
00096 
00097