snake.cpp

#include "snake.hpp"


#include <cstdlib>


void Snake::move()
{
    switch(direction_){
    case Direction::North:
        position_.y += 1;
        break;
    case Direction::East:
        position_.x += 1;
        break;
    case Direction::South:
        position_.y -= 1;
        break;
    case Direction::West:
        position_.x -= 1;
    }

    if (position_.x < 6.4) position_.x = 44.8; else if (position_.x > 44.8) position_.x = 6.4;
    if (position_.y < 0) position_.y = 38.4; else if (position_.y > 38.4) position_.y = 0;

}


//Snake canot move back on its self
//Cannot get working

//bool Snake::MoveValid (Direction move) const
//{
//   switch (move)
//   {
//      case Direction::North:
//         switch ()
//         {
//            case Direction::North:
//            case Direction::West:
//            case Direction::East:
//               return true;
//
//            default:
//               return false;
//         }
//
//      case Direction::West:
//         switch ()
//         {
//            case Direction::West:
//            case Direction::North:
//            case Direction::South:
//               return true;
//
//            default:
//               return false;
//         }
//
//      case Direction::East:
//         switch ()
//         {
//            case Direction::East:
//            case Direction::North:
//            case Direction::South:
//               return true;
//
//            default:
//               return false;
//         }
//
//      case Direction::South:
//         switch ()
//         {
//            case Direction::South:
//            case Direction::West:
//            case Direction::East:
//               return true;
//
//            default:
//               return false;
//         }
//
//      default:
//         return false;
//   }
//
//   return false;
//}



void Snake::render(prg::Canvas& canvas) const
{

    canvas.drawCircle(getPosition().x * 20, getPosition().y * 20,19.2,prg::Colour::GREEN);
}

void Snake::changeDirection(Direction new_direction)
{
    direction_ = new_direction;
}