File content as of revision 4:748b3e0062f6:

#include "Head.h"

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

}

Head::~Head()
{

}

void Head::init(int x, int y, int length, int speed)
{
    _x = x;
    _y = y;
    _length = length;
    _speed = speed;
    srand(time(NULL));
    _x = WIDTH/2 - _length/2;  // snake spawns in random position
    _y = HEIGHT/2 - _length/2;  
  // set the direction of snake to north
    
}
void Head::draw(N5110 &lcd) {
    
    lcd.drawCircle(_x,_y,_length,FILL_BLACK);
}


void Head::update(Direction d, float mag)
{
    // update y value depending on direction of movement
    // North is decrement as origin is at the top-left so decreasing moves up
    _speed = int(mag*10.0f);
    if (d == N && d != S){
            _y -= _speed;
            
            }
    if (d == S && d != N){
            _y += _speed;
            
            }
    if (d == W && d != E){
           
            _x -= _speed;
            }
    if (d == E && d != W){
           
            _x += _speed;
        }
                    
                     switch(d){                      
                case S:
                 _y;
                 break;
                    
                case N:
                 _y = 1;
                 break;
                    
                case W:
                 _x = 1;
                 break;
                    
                case E:
                 _x = 1;
                 break;
                    }
                    
    }
    // The head changes to the new position



Vector2D Head::get_pos() {
    Vector2D pos = {_x,_y};
    return pos;    
}