Paddle.cpp

00001 #include "Paddle.h"
00002 
00003 // nothing doing in the constructor and destructor
00004 Paddle::Paddle()
00005 {
00006 
00007 }
00008 
00009 Paddle::~Paddle()
00010 {
00011 
00012 }
00013 
00014 void Paddle::init(int x,int height,int width)
00015 {
00016     _x = x;  // x value on screen is fixed
00017     _y = HEIGHT/2 - height/2;  // y depends on height of screen and height of paddle
00018     _height = height;
00019     _width = width;
00020     _speed = 1;  // default speed
00021     _score = 0;  // start score from zero
00022 
00023 }
00024 
00025 void Paddle::draw(N5110 &lcd)
00026 {
00027     // draw paddle in screen buffer. 
00028     lcd.drawRect(_x,_y,_width,_height,FILL_BLACK);
00029 }
00030 
00031 void Paddle::update(Direction d,float mag)
00032 {
00033     _speed = int(mag*10.0f);  // scale is arbitrary, could be changed in future
00034 
00035     // update y value depending on direction of movement
00036     // North is decrement as origin is at the top-left so decreasing moves up
00037     if (d == N) {
00038         _y-=_speed;
00039     } else if (d == S) {
00040         _y+=_speed;
00041     }
00042 
00043     // check the y origin to ensure that the paddle doesn't go off screen
00044     if (_y < 1) {
00045         _y = 1;
00046     }
00047     if (_y > HEIGHT - _height - 1) {
00048         _y = HEIGHT - _height - 1;
00049     }
00050 }
00051 
00052 void Paddle::add_score()
00053 {
00054     _score++;
00055 }
00056 int Paddle::get_score()
00057 {
00058     return _score;
00059 }
00060 
00061 Vector2D Paddle::get_pos() {
00062     Vector2D p = {_x,_y};
00063     return p;    
00064 }