//The fact that we're building sections only from the NE, E, and SE
//cell edges is very important. A lot of the code here is structured
//as it is to deal with this reality.
public void RefreshRiverSections()
{
sections.Clear();
SectionBetweenCells.Clear();
CellEdgeContourCanon.Clear();
foreach (var cell in Grid.Cells)
{
for (HexDirection direction = HexDirection.NE; direction <= HexDirection.SE; direction++)
{
if (RiverCanon.HasRiverAlongEdge(cell, direction))
{
var neighbor = Grid.GetNeighbor(cell, direction);
Vector3 start = cell.AbsolutePosition + RenderConfig.GetFirstCorner(direction);
Vector3 end = cell.AbsolutePosition + RenderConfig.GetSecondCorner(direction);
RiverFlow flow = RiverCanon.GetFlowOfRiverAtEdge(cell, direction);
//Our control points need to operate differently if we're at endpoints,
//and both ControlOne and ControlTwo might have alternate behavior.
//We need to check both ends of the section for endpoints
bool previousCellRiver = RiverCanon.HasRiverAlongEdge(cell, direction.Previous());
bool previousNeighborRiver = RiverCanon.HasRiverAlongEdge(neighbor, direction.Previous2());
bool hasPreviousEndpoint =
!previousCellRiver &&
!previousNeighborRiver;
bool hasNextEndpoint =
!RiverCanon.HasRiverAlongEdge(cell, direction.Next()) &&
!RiverCanon.HasRiverAlongEdge(neighbor, direction.Next2());
var newRiverSection = new RiverSection()
{
AdjacentCellOne = cell,
AdjacentCellTwo = neighbor,
DirectionFromOne = direction,
Start = start,
End = end,
FlowFromOne = flow,
HasPreviousEndpoint = hasPreviousEndpoint,
HasNextEndpoint = hasNextEndpoint
};
SectionBetweenCells[new Tuple <IHexCell, IHexCell>(cell, neighbor)] = newRiverSection;
sections.Add(newRiverSection);
}
}
}
}
private void OnDrawGizmos_Contours()
{
Vector3 lineOne = Vector3.zero, lineTwo = Vector3.zero;
foreach (var cell in Grid.Cells)
{
Vector3 center = cell.AbsolutePosition;
foreach (var direction in EnumUtil.GetValues <HexDirection>())
{
var contour = CellEdgeContourCanon.GetContourForCellEdge(cell, direction);
if (contour.Count == 0)
{
continue;
}
for (int i = 0; i < contour.Count - 1; i++)
{
Gizmos.color = Color.white;
lineOne.x = contour[i].x;
lineOne.z = contour[i].y;
lineTwo.x = contour[i + 1].x;
lineTwo.z = contour[i + 1].y;
Gizmos.DrawLine(lineOne, lineTwo);
Gizmos.color = Color.gray;
lineTwo.x = contour[i].x;
lineTwo.z = contour[i].y;
Gizmos.DrawLine(center, lineTwo);
}
lineTwo.x = contour.Last().x;
lineTwo.z = contour.Last().y;
Gizmos.DrawLine(center, lineTwo);
Gizmos.color = Color.red;
Gizmos.DrawLine(center, center + RenderConfig.GetFirstCorner(direction));
Gizmos.DrawLine(center, center + RenderConfig.GetSecondCorner(direction));
}
}
}
public void RepositionIcons()
{
if (Camera.main == null)
{
return;
}
foreach (var cellWithSlot in SlotOfCell.Keys)
{
Vector3 centerOfNWCorner = cellWithSlot.AbsolutePosition + (
HexMapRenderConfig.GetFirstCorner(HexDirection.NW) + HexMapRenderConfig.GetSecondCorner(HexDirection.NW)
) / 2f;
var cornerInScreen = Camera.main.WorldToScreenPoint(centerOfNWCorner);
SlotOfCell[cellWithSlot].RectTransform.position = cornerInScreen;
}
}
private void TriangulateCellWeights_NoRiver(
IHexCell center, IHexCell right, HexDirection direction, IHexMesh weightsMesh
)
{
if (right == null)
{
weightsMesh.AddTriangle(
center.AbsolutePosition,
center.AbsolutePosition + RenderConfig.GetFirstCorner(direction),
center.AbsolutePosition + RenderConfig.GetSecondCorner(direction)
);
weightsMesh.AddTriangleColor(CenterWeights);
return;
}
Vector3 firstEdgeInner = center.AbsolutePosition + RenderConfig.GetFirstSolidCorner(direction);
Vector3 secondEdgeInner = center.AbsolutePosition + RenderConfig.GetSecondSolidCorner(direction);
//Solid center region
weightsMesh.AddTriangle(center.AbsolutePosition, firstEdgeInner, secondEdgeInner);
weightsMesh.AddTriangleColor(CenterWeights);
Vector3 firstEdgeOuter = (firstEdgeInner + right.AbsolutePosition + RenderConfig.GetSecondSolidCorner(direction.Opposite())) / 2f;
Vector3 secondEdgeOuter = (secondEdgeInner + right.AbsolutePosition + RenderConfig.GetFirstSolidCorner(direction.Opposite())) / 2f;
//The edge between Center and Right, going up to the dividing line
weightsMesh.AddQuad(firstEdgeInner, secondEdgeInner, firstEdgeOuter, secondEdgeOuter);
weightsMesh.AddQuadColor(CenterWeights, CenterRightWeights);
//Previous corner out to the edge of the cell
weightsMesh.AddTriangle(firstEdgeInner, center.AbsolutePosition + RenderConfig.GetFirstCorner(direction), firstEdgeOuter);
weightsMesh.AddTriangleColor(CenterWeights, CenterLeftRightWeights, CenterRightWeights);
//Next corner out to the edge of the cell
weightsMesh.AddTriangle(secondEdgeInner, secondEdgeOuter, center.AbsolutePosition + RenderConfig.GetSecondCorner(direction));
weightsMesh.AddTriangleColor(CenterWeights, CenterRightWeights, CenterRightNextRightWeights);
}