/// <summary> /// Triangulate a section of the hexagon for the given direction /// </summary> /// <param name="direction">Direction of the hexagon</param> /// <param name="cell">Specific cell to triangulate</param> private void Triangulate(HexDirection direction, HexCell cell) { Vector3 center = cell.Position; EdgeVertices e = new EdgeVertices( center + HexMetrics.GetFirstSolidCorner(direction), center + HexMetrics.GetSecondSolidCorner(direction) ); if (cell.HasRiver) { if (cell.HasRiverThroughEdge(direction)) { e.v3.y = cell.StreamBedY; if (cell.HasRiverBeginOrEnd) { TriangulateWithRiverBeginOrEnd(direction, cell, center, e); } else { TriangulateWithRiver(direction, cell, center, e); } } else { TriangulateAdjacentToRiver(direction, cell, center, e); } } else { TriangulateWithoutRiver(direction, cell, center, e); } // Only add necessary connections between tiles if (direction <= HexDirection.SE) { TriangulateConnection(direction, cell, e); } if (cell.IsUnderwater) { TriangulateWater(direction, cell, center); } }
private void TriangulateRoadAdjacentToRiver(HexDirection direction, HexCell cell, Vector3 center, EdgeVertices e) { bool hasRoadThroughEdge = cell.HasRoadThroughEdge(direction); bool previousHasRiver = cell.HasRiverThroughEdge(direction.Previous()); bool nextHasRiver = cell.HasRiverThroughEdge(direction.Next()); Vector2 interpolators = GetRoadInterpolators(direction, cell); Vector3 roadCenter = center; if (cell.HasRiverBeginOrEnd) { roadCenter += HexMetrics.GetSolidEdgeMiddle( cell.RiverBeginOrEndDirection.Opposite() ) * (1f / 3f); } else if (cell.IncomingRiver == cell.OutgoingRiver.Opposite()) { Vector3 corner; if (previousHasRiver) { if (!hasRoadThroughEdge && !cell.HasRoadThroughEdge(direction.Next())) { return; } corner = HexMetrics.GetSecondSolidCorner(direction); } else { if (!hasRoadThroughEdge && !cell.HasRoadThroughEdge(direction.Previous())) { return; } corner = HexMetrics.GetFirstSolidCorner(direction); } roadCenter += corner * 0.5f; center += corner * 0.25f; } else if (cell.IncomingRiver == cell.OutgoingRiver.Previous()) { roadCenter -= HexMetrics.GetSecondCorner(cell.IncomingRiver) * 0.2f; } else if (cell.IncomingRiver == cell.OutgoingRiver.Next()) { roadCenter -= HexMetrics.GetFirstCorner(cell.IncomingRiver) * 0.2f; } else if (previousHasRiver && nextHasRiver) { if (!hasRoadThroughEdge) { return; } Vector3 offset = HexMetrics.GetSolidEdgeMiddle(direction) * HexMetrics.innerToOuter; roadCenter += offset * 0.7f; center += offset * 0.5f; } else { HexDirection middle; if (previousHasRiver) { middle = direction.Next(); } else if (nextHasRiver) { middle = direction.Previous(); } else { middle = direction; } if (!cell.HasRoadThroughEdge(middle) && !cell.HasRoadThroughEdge(middle.Previous()) && !cell.HasRoadThroughEdge(middle.Next())) { return; } roadCenter += HexMetrics.GetSolidEdgeMiddle(middle) * 0.25f; } Vector3 mL = Vector3.Lerp(roadCenter, e.v1, interpolators.x); Vector3 mR = Vector3.Lerp(roadCenter, e.v5, interpolators.y); TriangulateRoad(roadCenter, mL, mR, e, hasRoadThroughEdge); if (previousHasRiver) { TriangulateRoadEdge(roadCenter, center, mL); } if (nextHasRiver) { TriangulateRoadEdge(roadCenter, mR, center); } }