public int GetRoadTileIndex(int i, int j)
{
if (!this[i,j].Improvements.Contains(road))
return -1;
int index = 0, c = 1;
var loc = new HexPoint(i, j);
foreach (HexDirection dir in HexDirection.All)
{
HexPoint pt = loc.Neighbor(dir);
if (IsValid(pt))
{
if (this[pt].Improvements.Contains(road))
index += c;
}
c *= 2;
}
return index;
}
public int GetBorderTileIndex(int i, int j)
{
int currentController = this[i,j].ControlledBy;
if (currentController == -1)
return 0;
int index = 0, c = 1;
var loc = new HexPoint(i, j);
foreach (HexDirection dir in HexDirection.All)
{
HexPoint pt = loc.Neighbor(dir);
if (IsValid(pt))
{
if ((this[pt].ControlledBy != currentController))
index += c;
}
c *= 2;
}
return index;
}
public River GetRiverAt(HexPoint point)
{
if (!IsValid(point))
return null;
if( this[point].IsRiver)
return Rivers.FirstOrDefault(river => river.Points.Select( a => a.Point ).Contains(point));
HexPoint neighbor = point.Neighbor(HexDirection.NorthEast);
if (IsValid(neighbor) && this[neighbor].IsNEOfRiver)
return Rivers.FirstOrDefault(river => river.Points.Select(a => a.Point).Contains(neighbor));
neighbor = point.Neighbor(HexDirection.West);
if (IsValid(neighbor) && this[neighbor].IsWOfRiver)
return Rivers.FirstOrDefault(river => river.Points.Select(a => a.Point).Contains(neighbor));
neighbor = point.Neighbor(HexDirection.NorthWest);
if (IsValid(neighbor) && this[neighbor].IsNWOfRiver)
return Rivers.FirstOrDefault(river => river.Points.Select(a => a.Point).Contains(neighbor));
return null;
}
public int GetCoastalTileIndex(int i, int j)
{
// return rnd.Next(32);
int index = 0, c = 1;
var loc = new HexPoint(i, j);
foreach (HexDirection dir in HexDirection.All /*.Shift(6)*/)
{
HexPoint pt = loc.Neighbor(dir);
if (IsValid(pt))
{
if ((this[pt].IsLand)) // may coast should be removed
index += c;
}
c *= 2;
}
return index;
}
private float GetHeightAtCorner(int x, int y, HexCorner corner)
{
HexPoint pt = new HexPoint(x, y);
switch (corner)
{
case HexCorner.SouthEast:
{
HexPoint se = pt.Neighbor(HexDirection.SouthEast);
HexPoint ea = pt.Neighbor(HexDirection.East);
if (IsValid(se) && IsValid(ea))
return (this[se].Height + this[ea].Height + Height) / 3.0f;
if (IsValid(se))
return (this[se].Height + Height) / 2.0f;
if (IsValid(ea))
return (this[ea].Height + Height) / 2.0f;
return Height;
}
case HexCorner.NorthEast:
{
HexPoint ne = pt.Neighbor(HexDirection.NorthEast);
HexPoint ea = pt.Neighbor(HexDirection.East);
if (IsValid(ne) && IsValid(ea))
return (this[ne].Height + this[ea].Height + Height) / 3.0f;
if (IsValid(ne))
return (this[ne].Height + Height) / 2.0f;
if (IsValid(ea))
return (this[ea].Height + Height) / 2.0f;
return Height;
}
case HexCorner.North:
{
HexPoint ne = pt.Neighbor(HexDirection.NorthEast);
HexPoint nw = pt.Neighbor(HexDirection.NorthWest);
if (IsValid(ne) && IsValid(nw))
return (this[ne].Height + this[nw].Height + Height) / 3.0f;
if (IsValid(ne))
return (this[ne].Height + Height) / 2.0f;
if (IsValid(nw))
return (this[nw].Height + Height) / 2.0f;
return Height;
}
case HexCorner.SouthWest:
{
HexPoint sw = pt.Neighbor(HexDirection.SouthWest);
HexPoint we = pt.Neighbor(HexDirection.West);
if (IsValid(sw) && IsValid(we))
return (this[sw].Height + this[we].Height + Height) / 3.0f;
if (IsValid(sw))
return (this[sw].Height + Height) / 2.0f;
if (IsValid(we))
return (this[we].Height + Height) / 2.0f;
return Height;
}
case HexCorner.NorthWest:
{
HexPoint nw = pt.Neighbor(HexDirection.NorthWest);
HexPoint we = pt.Neighbor(HexDirection.West);
if (IsValid(nw) && IsValid(we))
return (this[nw].Height + this[we].Height + Height) / 3.0f;
if (IsValid(nw))
return (this[nw].Height + Height) / 2.0f;
if (IsValid(we))
return (this[we].Height + Height) / 2.0f;
return Height;
}
case HexCorner.South:
{
HexPoint se = pt.Neighbor(HexDirection.SouthEast);
HexPoint sw = pt.Neighbor(HexDirection.SouthWest);
if (IsValid(se) && IsValid(sw))
return (this[se].Height + this[sw].Height + Height) / 3.0f;
if (IsValid(se))
return (this[se].Height + Height) / 2.0f;
if (IsValid(sw))
return (this[sw].Height + Height) / 2.0f;
return Height;
}
}
return 0f;
}