Board.cpp

00001 #include "Board.h"
00002 #define LENGTH 84
00003 
00004 //borad initial function
00005 void Board::init(int x,int y,int length,int width)
00006 {
00007     _x=x ;                                      // horizontal coordinate of Board
00008     _y=y ;                                      // vertical coordinate of board
00009     _length =length;                            // length
00010     _width = width;                             // width
00011     _speed = 1;                                 // default speed
00012     _score = 0;                                 // initi8al socre
00013     
00014     
00015 }
00016 void Board::draw(N5110 &lcd)                     // use N5110 series function to draw a board
00017 {
00018       lcd.drawRect(_x,_y,_length,_width,FILL_BLACK);
00019 }
00020 void Board::update(Direction d,float mag)        // update position and speed increment information
00021 {
00022     _speed = int(mag*10.0f);                     // speed variable
00023          
00024             // eight directions control
00025             if (d == N) 
00026             {
00027                 _y-=_speed;                     // North-up
00028             }else if (d == S) 
00029             {
00030                 _y+=_speed;                     // South-down   
00031             }else if(d == W)                   
00032             {
00033                 _x-=_speed;                     // West-left
00034             }else if(d == E)                    
00035             {
00036                 _x+=_speed;                     // East-right
00037             }else if(d == NE)
00038             {
00039                 _y+=_speed;
00040                 _x+=_speed;                     //Northeast-upright
00041             }else if(d == NW)
00042             {
00043                 _y+=_speed;
00044                 _x-=_speed;                     //Northwest-upleft
00045             }else if(d == SE)
00046             {
00047                 _y-=_speed;
00048                 _x+=_speed;                     //Southeast-downright
00049             }else if(d == SW)
00050             {
00051                 _y-=_speed;
00052                 _x-=_speed;                     //Southwest-downleft
00053             }
00054           //  boundary judging and dealing
00055           
00056             if (_y <= 24)                        //up
00057             {
00058                 _y = 24;
00059             }
00060             if (_y >= HEIGHT - _width - 1)       //bottom
00061             {
00062                 _y = HEIGHT - _width - 1;
00063             }
00064              if (_x < 1)                         //left
00065             {
00066                 _x = 1;
00067             }
00068             if (_x > WIDTH - _length - 1)        //right
00069             {
00070                 _x = WIDTH - _length - 1;
00071             }
00072 }
00073 /*void Board::add_score()
00074 {
00075                  _score++;
00076 }
00077 int Board::get_score()
00078 {
00079      return _score;
00080 }*/
00081 
00082 Vector2D Board::get_pos()        //position data
00083 {
00084     Vector2D p = {_x,_y};
00085     return p;         
00086 }