asymmetricPart.h

00001 /***************************************************************************//**
00002  * @file asymmetricPart.h
00003  * @brief class for an asymmetric head object for gecko.h
00004  *******************************************************************************
00005  * @section License
00006  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
00007  *******************************************************************************
00008  *
00009  * Permission is granted to anyone to use this software for any purpose,
00010  * including commercial applications, and to alter it and redistribute it
00011  * freely, subject to the following restrictions:
00012  *
00013  * 1. The origin of this software must not be misrepresented; you must not
00014  *    claim that you wrote the original software.
00015  * 2. Altered source versions must be plainly marked as such, and must not be
00016  *    misrepresented as being the original software.
00017  * 3. This notice may not be removed or altered from any source distribution.
00018  *
00019  * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
00020  * obligation to support this Software. Silicon Labs is providing the
00021  * Software "AS IS", with no express or implied warranties of any kind,
00022  * including, but not limited to, any implied warranties of merchantability
00023  * or fitness for any particular purpose or warranties against infringement
00024  * of any proprietary rights of a third party.
00025  *
00026  * Silicon Labs will not be liable for any consequential, incidental, or
00027  * special damages, or any other relief, or for any claim by any third party,
00028  * arising from your use of this Software.
00029  *
00030  ******************************************************************************/
00031 
00032 #include "settings.h"
00033 #include "LS013B7DH03.h"
00034 
00035 /* Bitfield containing the position of the top left corner of the part and the orientation
00036  * The minimum number of bits to store x, y and orientation is 10 bits (there are 255 tiles).
00037  * Since this will be expanded to 16 bits the x and y values are stored in 7 bits each.
00038  * */
00039 
00040 struct positionAndDirection{
00041     uint8_t x:7;
00042     uint8_t y:7;
00043     uint8_t direction:2;
00044 };
00045 
00046 class asymmetricPart{
00047 private:
00048     positionAndDirection _posAndDir;
00049     const uint8_t *_px_map;
00050     uint8_t _nPix;
00051 
00052     /* Private member functions */
00053     void draw(silabs::LS013B7DH03 &display, uint8_t color) const;
00054 public:
00055     asymmetricPart();
00056     asymmetricPart(uint8_t x, uint8_t y, Direction dir,  const uint8_t *px_map, uint8_t nPix);
00057 
00058     /* Set all member variables */
00059     void init(uint8_t x, uint8_t y, Direction dir,  const uint8_t *px_map, uint8_t nPix);
00060 
00061     /* Draw the part on the screen */
00062     void draw(silabs::LS013B7DH03 &display) const {draw(display, Black);};
00063 
00064     /* Erase the part from the screen */
00065     void remove(silabs::LS013B7DH03 &display) const {draw(display, White);};
00066 
00067     /* Get member variables */
00068     uint8_t getX() const {return _posAndDir.x;};
00069     uint8_t getY() const {return _posAndDir.y;};
00070     uint8_t getDir() const {return _posAndDir.direction;};
00071 
00072     /* Set member variables */
00073     void setX(uint8_t x) {_posAndDir.x = x&0x7F;};
00074     void setY(uint8_t y) {_posAndDir.y = y&0x7F;};
00075     void setDir(Direction dir) {_posAndDir.direction = static_cast<int>(dir)&0x0003;};
00076 };
00077