1  // SPDX-FileCopyrightText: 2019 Anne Barela for Adafruit Industries
 2  //
 3  // SPDX-License-Identifier: MIT
 4  
 5  #include "Arduino.h"
 6  
 7  class Snake {
 8    private:
 9      uint8_t foodX; //(0-7)
10      uint8_t foodY; //(0-15)
11      uint16_t snakeLength;
12      int8_t snakeHeadX;
13      int8_t snakeHeadY;
14      int8_t snakeHeadDX;
15      int8_t snakeHeadDY;
16      uint8_t snakeBoard[16][8];
17      uint8_t activeSnakeBoard[16];
18      unsigned long lastSnakeMoveTime;
19      bool allowToChangeDirection;
20      
21      void placeFood();
22      bool moveSnake();  // return true if move is valid
23      void gameOver();
24      
25    public:
26      bool gameRunning;
27      void init();
28      void run();
29      void changeDirection(int8_t dx, int8_t dy);  // should not run twice 
30      uint8_t* getActiveBoard();
31  };