public MineClaim(int id, ChipDensity chipDensity, SiteHardness siteHardness)
{
Id = id;
ChipDensity = chipDensity;
Hardness = siteHardness;
}
public MineClaim(ChipDensity chipDensity, SiteHardness siteHardness) :
this(0, chipDensity, siteHardness)
{
}