NXP Rapid IoT prototyping kit port of Silabs "hungry gecko" smake-like game. https://os.mbed.com/teams/SiliconLabs/code/Hungry_gecko/
Dependencies: lib_sx9500 GraphicsDisplay ColorMemLCD Large_fonts
See a detailed description of this project on Hackster.io . https://www.hackster.io/marcomerli/riotwear-snake-ca6dfc
gecko.cpp
- Committer:
- batman52
- Date:
- 2019-12-27
- Revision:
- 81:737dff75e013
- Parent:
- 80:77210aa1ad9c
File content as of revision 81:737dff75e013:
/***************************************************************************//** * @file gecko.cpp * @brief class for creating a gecko-like object and keeps track of its momvement ******************************************************************************* * @section License * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> ******************************************************************************* * * Permission is granted to anyone to use this software for any purpose, * including commercial applications, and to alter it and redistribute it * freely, subject to the following restrictions: * * 1. The origin of this software must not be misrepresented; you must not * claim that you wrote the original software. * 2. Altered source versions must be plainly marked as such, and must not be * misrepresented as being the original software. * 3. This notice may not be removed or altered from any source distribution. * * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no * obligation to support this Software. Silicon Labs is providing the * Software "AS IS", with no express or implied warranties of any kind, * including, but not limited to, any implied warranties of merchantability * or fitness for any particular purpose or warranties against infringement * of any proprietary rights of a third party. * * Silicon Labs will not be liable for any consequential, incidental, or * special damages, or any other relief, or for any claim by any third party, * arising from your use of this Software. * ******************************************************************************/ #include "gecko.h" /* Number of pixels used in the Gecko head */ #define NPIXHEAD 16 /* Number of pixels used in one Gecko part */ #define NPARTPIXEL 21 /* * Pixel map for a gecko part and head * y-crd is encoded in the 4 most significant bits, x-crd is encoded in the 4 least significant bits * The upper left corner of the part is assigned coordinates (x,y)=(0,0) */ const uint8_t head_px_map[NPIXHEAD] = {0x03, 0x12, 0x14, 0x21, 0x25, 0x30, 0x32, 0x34, 0x36, 0x40, 0x46, 0x51, 0x55, 0x62, 0x63, 0x64}; const uint8_t gecko_px_map[NPARTPIXEL] = {0x02, 0x03, 0x04, 0x11, 0x15, 0x20, 0x23, 0x26, 0x30, 0x32, 0x33, 0x34, 0x36, 0x40, 0x43, 0x46, 0x51, 0x55, 0x62, 0x63, 0x64}; Gecko::Gecko():_length(3){ _head.init(3, 3, UP, head_px_map, NPIXHEAD); _last = _length-1; for (int i=0;i<_length;i++){ _position[i] = (_head.getY() + i +1)*BOARD_WIDTH + _head.getX(); } } void Gecko::move(ColorMemLCD &display, Direction dir){ // Remove the last part of the gecko this->removePart(display, this->getX(_last)*STEPSIZE + BOARDERWIDTH/2, (this->getY(_last)+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2); // Remove head _head.remove(display); // Update the part next to the head _head.setDir(dir); _position[_last] = _head.getY()*BOARD_WIDTH + _head.getX(); switch(dir){ case UP: if (_head.getY() == 0) { _head.setY(BOARD_HEIGHT-1); } else { _head.setY(_head.getY() - 1); } break; case DOWN: if ( _head.getY() == (BOARD_HEIGHT-1)) { _head.setY(0); } else { _head.setY(_head.getY() + 1); } break; case RIGHT: if (_head.getX() == (BOARD_WIDTH-1)) { _head.setX(0); } else { _head.setX(_head.getX() + 1); } break; case LEFT: if (_head.getX() == 0) { _head.setX(BOARD_WIDTH-1); } else { _head.setX(_head.getX() - 1); } break; } // Draw the parts of the gecko which have been moved _head.draw(display); this->drawPart(display, this->getX(_last)*STEPSIZE + BOARDERWIDTH/2, (this->getY(_last)+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2); // Update the index of the last part if (_last == 0){ _last += _length; } _last -= 1; } void Gecko::draw(ColorMemLCD &display) const{ _head.draw(display); // Loop over indices of all parts of the gecko for (uint8_t i=0;i<_length;i++){ this->drawPart(display, this->getX(i)*STEPSIZE + BOARDERWIDTH/2, (this->getY(i)+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2); } } bool Gecko::selfCollision() const{ /* Check if some pixels have the same coordinate */ for (int i=0;i<_length;i++) { if ((_head.getX()==this->getX(i)) && (_head.getY()==this->getY(i))){ return true; } } return false; } void Gecko::increaseLength(ColorMemLCD &display, Direction dir) { if ((_length + 1)> MAXLENGTH) return; // Store the tail of the gecko uint8_t tempPos = _position[_last] ; // Move the gecko this->move(display, dir); uint8_t temp[MAXLENGTH]; // Copy the front of the gecko for (uint8_t i = _last + 1;i<_length;i++) { temp[i] = _position[i]; } // Insert the "old" tail _position[_last + 1] = tempPos; // Insert the front of the gecko for (uint8_t i = _last + 1;i<_length;i++) { _position[i+1] = temp[i]; } // Draw last part of the gecko this->drawPart(display, this->getX(_last+1)*STEPSIZE + BOARDERWIDTH/2, (this->getY(_last+1)+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2); // Update length and position of last _length += 1; _last += 1; } bool Gecko::headOccupiesTile(uint8_t x_ref, uint8_t y_ref) const{ return ((x_ref == _head.getX()) && (y_ref == _head.getY())); } bool Gecko::occupiesTile(uint8_t x_ref, uint8_t y_ref) const{ if ( (x_ref == _head.getX()) && (y_ref == _head.getY()) ){ return true; } for (uint8_t i=0;i<_length;i++) { if ((x_ref == this->getX(i)) && (y_ref == this->getY(i)) ) { return true; } } return false; } void Gecko::drawPart(ColorMemLCD &display, uint8_t x, uint8_t y) const { // // x and y denotes the coordinates of the top left corner // Assumes that x and y are given such that the entire part is on the screen #if(MULTI_UPDATE) display.window( BOARDERWIDTH/2, y, LCD_DISP_WIDTH - BOARDERWIDTH/2, STEPSIZE ); #endif for (int i=0;i<NPARTPIXEL;i++){ display.pixel(x + static_cast<uint8_t>(gecko_px_map[i] & 0xF), y + static_cast<uint8_t>( (gecko_px_map[i] >> 4) & 0xF), FOREGROUND_COLOR); } #if(MULTI_UPDATE) display.update(); #endif } void Gecko::removePart(ColorMemLCD &display, uint8_t x, uint8_t y) const { // x and y denotes the coordinates of the top left corner // Assumes that x and y are given such that the part is on the screen #if(MULTI_UPDATE) display.window( BOARDERWIDTH/2, y, LCD_DISP_WIDTH - BOARDERWIDTH/2, STEPSIZE ); #endif for (int i=0;i<NPARTPIXEL;i++){ display.pixel(x + static_cast<uint8_t>(gecko_px_map[i] & 0xF), y + static_cast<uint8_t>( (gecko_px_map[i] >> 4) & 0xF), BACKGROUND_COLOR); } #if(MULTI_UPDATE) display.update(); #endif } uint8_t Gecko::getX(uint8_t indx) const{ return _position[indx] - BOARD_WIDTH*(_position[indx]/BOARD_WIDTH); } uint8_t Gecko::getY(uint8_t indx) const{ return _position[indx]/BOARD_WIDTH; }