void Precalculation(HexCell cell)
{
cell.Center = cell.WaterCenter = cell.transform.localPosition;
cell.WaterCenter.y = HexMetrics.WaterSurfaceY;
for (int i = 0; i <= 5; i++)
{
var direction = (HexDirection)i;
cell.Edges[i] = new EdgeVertices(
cell.Center + HexMetrics.GetLeftSolidCorner(direction),
cell.Center + HexMetrics.GetRightSolidCorner(direction));
if (cell.HasRiver && cell.HasRiverThroughEdge(direction))
{
cell.Edges[i].V3.y = cell.StreamBedY;
}
cell.WaterEdges[i] = new EdgeVertices(
cell.WaterCenter + HexMetrics.GetLeftWaterCorner(direction),
cell.WaterCenter + HexMetrics.GetRightWaterCorner(direction));
}
}