Brick.cpp

00001 #include "Brick.h"
00002 
00003 Brick::Brick()
00004 {
00005 
00006 }
00007 
00008 Brick::~Brick()
00009 {
00010 
00011 }
00012 
00013 void Brick::init(int x,int y, int lives) // initialise the Brick object at the specified x, y coordinate and with the specified number of lives
00014 {
00015     _x = x;    // x value on screen is fixed and must be defined at initialisation
00016     _y = y;    // y value on screen is fixed and must be defined at initialisation
00017     _height = BRICK_HEIGHT; // set brick height and width defined in Brick.h
00018     _width = BRICK_WIDTH;
00019     _lives = lives;     // lives set at initialisation, will be decremented upon collisions
00020     _base_lives = lives;    // _base_lives variable used to reset the bricks to the number of lives specified at init
00021 
00022 }
00023 
00024 
00025 void Brick::draw(N5110 &lcd) // draw the brick on the LCD
00026 {
00027     if (_x >= 0) {    // only draw if on screen (more efficient?)
00028         if (_lives <= 2) {
00029             lcd.drawRect(_x,_y,_width,_height,FILL_TRANSPARENT);   // if lives < 3 then draw a hollow brick
00030         } else if (_lives <= 4) {
00031             lcd.drawRect(_x,_y,_width,_height,FILL_BLACK);
00032             lcd.drawRect(_x + 3, _y + 1,_width-6,_height-2,FILL_WHITE);   // if lives < 5 then fill up the brick a little bit (less hollow)
00033         } else {
00034             lcd.drawRect(_x,_y,_width,_height,FILL_BLACK);   // if lives >= 5 then draw a fully black brick
00035         }
00036     }
00037 }
00038 
00039 
00040 bool Brick::hit()  // decrement the number of lives by one (triggered by collisions), returns a bool
00041 {
00042     _lives = _lives - 1; // decrement lives
00043     if (_lives <= 0) {
00044         return true;     // if lives <=0 brick is destroyed and will need to be moved off screen
00045     } else {
00046         return false;    // else the brick is still alive and can remain where it is
00047     }
00048 }
00049 
00050 
00051 void Brick::reset_lives(int inc)  // reset the lives after victory, takes inc
00052 {
00053     _lives = _base_lives + inc;   // lives goes back to what it was at init plus 1 for every victory screen (inc = _multiplier in the breakout engine)
00054 }
00055 
00056 int Brick::get_x()   // return the brick's x coordinate (broken up into individual coordinates so it is easier to work with for list iterators)
00057 {
00058     return _x;
00059 }
00060 
00061 
00062 int Brick::get_y()   // return the brick's y coordinate
00063 {
00064     return _y;
00065 }
00066 
00067 
00068 void Brick::set_posx(int x) // set the brick's x coordinate (used to move it off and on screen). y is unneccessary
00069 {
00070     _x = x;
00071 }