File content as of revision 21:e8d66c5f68cc:

#include "Snake.h"

// nothing doing in the constructor and destructor
Snake::Snake()
{

}

Snake::~Snake()
{

}

void Snake::init(int x,int y, int score, int speed, int snakeheight, int snakewidth) //Initial values for the snake
{
    _x = WIDTH/2; // Sets the position to be in the middle of the screen
    _y = HEIGHT/2;
    _score = score;
    _speed = speed; // The value that holds the speed of the snake
    _snakewidth = snakewidth;
    _snakeheight = snakeheight;


}

void Snake::draw(N5110 &lcd)
{
 
    // draw Snake in screen buffer. 
  lcd.drawRect(_x,_y,_snakewidth,_snakeheight,FILL_BLACK);  // Draws the initial snake head is a 5x5 Square matches well with the cirlce of the apple when set to 2

}


void Snake::update(Direction d,float mag)
{
              
                 _x += _move.x;        //Needed to move in the x-axis 
                 _y += _move.y;        //Needed to move in the y-axis
              _speed = int(mag*1.5f);  // Sets the scaling for the speed the snake moves, by adjusting this you can change the speed of the snake.
              
                         //When moving the thubstick this is read by the game and controls the movement of the snake, 
                         //moving it a small ammount will make the snake move slowly holding down for too long and your snake will get some speed!
            if (d == N){
                        _move.y -=_speed;  //  Snake Moves Up
                        _move.x = 0;      // Makes it so the snake can only go in compass directions (N,E,S,W) same for all directions
                        }
            if (d == S){
                        _move.y +=_speed; // Snake moves Down
                        _move.x = 0;
                        } 
             if (d == E){
                        _move.y = 0;
                        _move.x +=_speed;  // Snake moves right
                        } 
             if (d == W){
                        _move.y = 0;
                        _move.x -=_speed; // Snake moves Left
                        } 


/*  Deadly Wall turned on

   //Uncomment this and comment the section in SnakeEngine.cpp if you want the snake to not die when he touches the edges as this will keep 
   //him in safely in the game area 


    // Check that the Snakes coordinates aren't greater the the size of the screen which 
    // would mean the snake has gone off the screen
             if (_x>=(WIDTH-6)) { // 5 pixles for snake and 1 pixle for border
               _x=(WIDTH-6);
                    }
            if (_x<=1) {   // 1 pixle offset due to border
                 _x = 1;
                        }
            if (_y >=(HEIGHT-6)) { // 5 pixles for snake and 1 pixle for border
                _y=(HEIGHT-6);
                   }
             if (_y<=9) {    // Checks that its in the game area as there is a line (8 pixels missing due to scoredisplay and 1 pixle due to border) 
                  _y=9;
                    }
      
       // End of Save wall Section   */  
          
                 
}

void Snake::add_score()  // Not in use yet but will add to score when apple is ate by the snake
{
    _score++;
}
int Snake::get_score() //Allows the game to get the value of the score
{
    return _score;
}

Vector2D Snake::get_move() {  // Allows the game to see the value stored in the movement(m) which shows how fast the snake will move
 
    Vector2D m = {_move.x, _move.y};    
    return m;
}


Vector2D Snake::get_pos() { //Gets the position of the snake this will be used for collision detection soon
    Vector2D p = {_x,_y};
    return p;    
}