/// <summary>
/// Method <c>ChangeDirection</c> changes the direction of the snake.
/// </summary>
/// <param name="newDirection">The snake's new direction</param>
public void ChangeDirection(Direction newDirection)
{
switch (Compass)
{
case Direction.UP:
if (!newDirection.Equals(Direction.DOWN))
{
Compass = newDirection;
}
break;
case Direction.RIGHT:
if (!newDirection.Equals(Direction.LEFT))
{
Compass = newDirection;
}
break;
case Direction.LEFT:
if (!newDirection.Equals(Direction.RIGHT))
{
Compass = newDirection;
}
break;
case Direction.DOWN:
if (!newDirection.Equals(Direction.UP))
{
Compass = newDirection;
}
break;
}
}
private Coordinate nextHead(Direction direction)
{
int x = snake.get(0).x;
int y = snake.get(0).y;
if (direction.Equals(Direction.LEFT))
{
x = x - 1;
x = (x < 0) ? width + x : x % width;
}
else if (direction.Equals(Direction.UP))
{
y = y - 1;
y = (y < 0) ? height + y : y % height;
}
else if (direction.Equals(Direction.RIGHT))
{
x = (x + 1) % width;
}
else if (direction.Equals(Direction.DOWN))
{
y = (y + 1) % height;
}
else
{
Console.WriteLine("You messed something up mate");
}
return(new Coordinate(x, y));
}
