public void PositionConstructorTest()
{
int x = 0;
int y = 0;
Position target = new Position(x, y);
Assert.IsNotNull(target);
}
public Position getPosition(int x,int y)
{
//首先在缓存中查找对象
foreach (var item in positions)
{
if (item.X==x && item.Y==y)
{
//在缓存中命中对象后还原对象的外部属性
return item;
}
}
//如果缓存未命中则新建对象并加入缓存
Position position = new Position(x, y);
positions.Add(position);
return position;
}
public void add(Position position, Glyph glyph)
{
if (position.X < 0 || position.X > this.maxRows)
{
throw new ValidationException("Invalid Row");
}
if (position.Y < 0 || position.Y > this.MaxCols)
{
throw new ValidationException("Invalid Col");
}
//todo the Regex needs to be updated
if (!new Regex("^[a-zA-Z,. $]").IsMatch(glyph.Alphabet))
{
throw new ValidationException("Invalid Alphabet");
}
context.Add(position, glyph);
}
public Glyph getGlyphBy(Position position)
{
return context[position];
}