Laser.cpp

00001 #include "Laser.h"
00002 
00003 Laser::Laser()
00004 {
00005 
00006 }
00007 
00008 Laser::~Laser()
00009 {
00010 
00011 }
00012 
00013 void Laser::init()  // initialises the lasers off screen
00014 {
00015     _x = -10;  
00016     _y = 0;
00017 
00018     _speed_y = -2; // -2 speed in the y direction, doesnt change even off screen
00019 }
00020 
00021 void Laser::draw(N5110 &lcd)
00022 {
00023     if (_x >= 0) {  // only draw if on screen (more efficient?)
00024         lcd.drawRect(_x,_y,2,6,FILL_BLACK);
00025     }
00026 }
00027 
00028 void Laser::update() // updates the laser's y coordinate according to its speed
00029 {
00030     _y += _speed_y;
00031 }
00032 
00033 int Laser::get_x()  // retrieves the lasers's x coordinate
00034 {
00035     return _x;
00036 }
00037 
00038 int Laser::get_y()  // retrieves the lasers's y coordinate
00039 {
00040     return _y;
00041 }
00042 
00043 void Laser::set_posx(int x)  // sets the laser's x coordinate
00044 {
00045     _x = x;
00046 }
00047 
00048 void Laser::set_posy(int y)  // sets the lasers's y coordinate
00049 {
00050     _y = y;
00051 }