/// <summary>
/// generates rivers starting from given river's starting and ending point
/// operation is processed only if points are in visible terrain and not on border
/// => meaning that terrain has been moved and river isn't complete
/// </summary>
public void GenerateConnectingRiver(RiverInfo river)
{
Vertex startPoint = river.riverPath[0];
if (ftm.IsInDefinedTerrain(startPoint) && !ftm.IsOnBorder(startPoint))
{
Area restrictArea = fmc.CalculateRestrictedArea(startPoint);
List<Direction> reachedSides = new List<Direction>();
reachedSides.Add(fmc.GetOppositeDirection(startPoint.side));
RiverInfo startRiver =
frp.GetRiverFrom(startPoint, reachedSides, restrictArea, river, river.gridStep, true);
if(startRiver.riverPath.Count == 0)
{
ShowErrorMessage("connecting river failed \n" + startRiver.errorMessage);
}
frd.DistortPath(startRiver.riverPath, startRiver.gridStep/3, startRiver.gridStep);
river.ConnectWith(startRiver);
startPoint.side = Direction.none;
}
Vertex endPoint = river.GetLastVertex();
if (ftm.IsInDefinedTerrain(endPoint) && !ftm.IsOnBorder(endPoint))
{
Area restrictArea = fmc.CalculateRestrictedArea(endPoint);
List<Direction> reachedSides = new List<Direction>();
reachedSides.Add(fmc.GetOppositeDirection(endPoint.side));
RiverInfo endRiver =
frp.GetRiverFrom(endPoint, reachedSides, restrictArea, river, river.gridStep, true);
if (endRiver.riverPath.Count == 0)
{
ShowErrorMessage("connecting river failed \n" + endRiver.errorMessage);
}
frd.DistortPath(endRiver.riverPath, endRiver.gridStep / 3, endRiver.gridStep);
river.ConnectWith(endRiver);
endPoint.side = Direction.none;
}
frd.DigRiver(river);
}
