File content as of revision 2:c33ff63c0813:

#include "Snake.h"

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

}

Snake::~Snake()
{

}

void Snake::init(int x,int height,int width,int speed)
{
    _x = x;  // x value on screen is fixed
    _y = HEIGHT/2 - height/2;  // y depends on height of screen and height of snake
    _height = height;
    _width = width;
    _speed = 1;  // default speed

}

void Snake::draw(N5110 &lcd)
{
    // draw paddle in screen buffer. 
    lcd.drawRect(_x,_y,_width,_height,FILL_BLACK);
}

void Snake::update(Direction d,float mag)
{
    _speed = int(mag*4.0f);  // scale is arbitrary, could be changed in future

    // update y value depending on direction of movement
    // North is decrement as origin is at the top-left so decreasing moves up
    if (d == N) {
        _y-=_speed;
    } else if (d == S) {
        _y+=_speed;
    }

    // check the y origin to ensure that the paddle doesn't go off screen
    if (_y < 1) {
        _y = 1;
    }
    if (_y > HEIGHT - _height - 1) {
        _y = HEIGHT - _height - 1;
    }
}



Vector2D Snake::get_pos() {
    Vector2D p = {_x,_y};
    return p;    
}