void AddCliffEdge(SquareCell cell, GridDirection direction)
{
GridDirection prev = direction.Previous();
GridDirection next = direction.Next();
GridDirection prevN = prev.Previous2();
GridDirection nextN = next.Next2();
SquareCell neighbor = cell.GetNeighbor(direction);
if (neighbor != null)
{
Vector3 c0 = new Vector3(cell.coordinates.X, 0, cell.coordinates.Z) + GridMetrics.GetEdge(prev) + Vector3.up * (int)cell.GridElevations[prev] * GridMetrics.elevationStep;
Vector3 c1 = new Vector3(cell.coordinates.X, 0, cell.coordinates.Z) + GridMetrics.GetEdge(next) + Vector3.up * (int)cell.GridElevations[next] * GridMetrics.elevationStep;
Vector3 n0 = new Vector3(neighbor.coordinates.X, 0, neighbor.coordinates.Z) + GridMetrics.GetEdge(prevN) + Vector3.up * (int)neighbor.GridElevations[prevN] * GridMetrics.elevationStep;
Vector3 n1 = new Vector3(neighbor.coordinates.X, 0, neighbor.coordinates.Z) + GridMetrics.GetEdge(nextN) + Vector3.up * (int)neighbor.GridElevations[nextN] * GridMetrics.elevationStep;
if (c0 != n0 && c1 != n1)
{
if (c0.y > n0.y && n1.y > c1.y) // if edges cross heights along edge X
{
Vector2 cross = CrossingPoint(c1.y - c0.y, n1.y - n0.y, c0.y, n0.y);
Vector3 worldCross = new Vector3(cell.coordinates.X, 0, cell.coordinates.Z)
+ GridMetrics.GetEdge(direction.Previous())
+ (cross.x * 2 * GridMetrics.GetEdge(direction.Next2()))
+ new Vector3(0, cross.y, 0);
terrain.AddTriangle(worldCross, c0, n0);
terrain.AddTriangleColor(Color.cyan);
terrain.AddTriangle(worldCross, n1, c1);
terrain.AddTriangleColor(Color.green);
}
else if (c0.y > n0.y && c1.y > n1.y) // if one edge is always above the other
{
terrain.AddQuad(c0, n0, n1, c1);
terrain.AddQuadColor(retainingWallColor);
}
}
else if (c0.y > n0.y)
{
terrain.AddTriangle(c0, n0, c1);
terrain.AddTriangleColor(retainingWallColor);
}
else if (c1.y > n1.y)
{
terrain.AddTriangle(c0, n1, c1);
terrain.AddTriangleColor(retainingWallColor);
}
}
}
void TriangulateWithRiver(
GridDirection direction, SquareCell cell, Vector3 centre, Vector3 v0, Vector3 v1, Vector3 v2, Vector3 v3, float v
)
{
GridDirection flowDirection;
bool reversed = cell.HasIncomingRiver[(int)direction];
if (cell.HasOutgoingRiver[(int)direction])
{
flowDirection = direction;
}
else if (reversed)
{
flowDirection = direction.Opposite();
}
else
{
if (cell.HasIncomingRiver[(int)direction.Next2()] && cell.HasOutgoingRiver[(int)direction.Previous2()])
{
flowDirection = direction.Previous2();
}
else if (cell.HasOutgoingRiver[(int)direction.Next2()] && cell.HasIncomingRiver[(int)direction.Previous2()])
{
flowDirection = direction.Next2();
}
else
{
flowDirection = direction.Opposite();
}
}
TriangulateRiverTri(centre, v0, v3, cell.RiverSurfaceY, reversed, direction, flowDirection);
SquareCell neighbor = cell.GetNeighbor(direction);
if (neighbor && cell.HasRiverThroughEdge(direction))
{
TriangulateRiverQuad(v3, v0, v1, v2, cell.RiverSurfaceY, neighbor.RiverSurfaceY, 0.8f, reversed);
}
}
void EditCell(SquareCell cell, Vector3 hitpoint)
{
if (activeMode == EditMode.color)
{
cell.Tile = activeTileMaterial.GetClone;
}
else if (activeMode == EditMode.elevation)
{
GridDirection vertex = squareGrid.GetVertex(hitpoint);
if (Input.GetMouseButton(0) && (stopWatch.ElapsedMilliseconds > 500f || freshClick))
{
cell.ChangeVertexElevation(vertex, 1);
if (!allowCliffs)
{
if (cell.GetNeighbor(vertex))
{
cell.GetNeighbor(vertex).ChangeVertexElevation(vertex.Opposite(), 1);
}
if (cell.GetNeighbor(vertex.Next()))
{
cell.GetNeighbor(vertex.Next()).ChangeVertexElevation(vertex.Previous2(), 1);
}
if (cell.GetNeighbor(vertex.Previous()))
{
cell.GetNeighbor(vertex.Previous()).ChangeVertexElevation(vertex.Next2(), 1);
}
}
stopWatch.Reset();
stopWatch.Start();
}
if (Input.GetMouseButton(1) && (stopWatch.ElapsedMilliseconds > 500f || freshClick))
{
cell.ChangeVertexElevation(vertex, -1);
if (!allowCliffs)
{
if (cell.GetNeighbor(vertex))
{
cell.GetNeighbor(vertex).ChangeVertexElevation(vertex.Opposite(), -1);
}
if (cell.GetNeighbor(vertex.Next()))
{
cell.GetNeighbor(vertex.Next()).ChangeVertexElevation(vertex.Previous2(), -1);
}
if (cell.GetNeighbor(vertex.Previous()))
{
cell.GetNeighbor(vertex.Previous()).ChangeVertexElevation(vertex.Next2(), -1);
}
}
stopWatch.Reset();
stopWatch.Start();
}
}
else if (activeMode == EditMode.rivers)
{
if (Input.GetMouseButton(1))
{
cell.RemoveRivers();
Explosion(cell);
}
else if (isDrag)
{
SquareCell otherCell = cell.GetNeighbor(dragDirection.Opposite()); // work with brushes
if (otherCell)
{
otherCell.SetOutgoingRiver(dragDirection);
}
}
}
else if (activeMode == EditMode.roads)
{
float fracX = hitpoint.x - Mathf.Floor(hitpoint.x);
float fracZ = hitpoint.z - Mathf.Floor(hitpoint.z);
if (fracX > 0.25f && fracX < 0.75f || fracZ > 0.25f && fracZ < 0.75f)
{
GridDirection edge = squareGrid.GetEdge(hitpoint);
if (Input.GetMouseButton(1))
{
cell.RemoveRoad(edge);
Explosion(cell);
}
else
{
cell.AddRoad(edge);
}
}
}
else if (activeMode == EditMode.water_level)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.WaterLevel++;
}
else if (Input.GetMouseButton(1) && freshClick)
{
cell.WaterLevel--;
}
}
else if (activeMode == EditMode.building)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.UrbanLevel++;
}
if (Input.GetMouseButton(1) && freshClick)
{
cell.UrbanLevel = 0;
Explosion(cell);
}
}
else if (activeMode == EditMode.trees)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.PlantLevel++;
}
if (Input.GetMouseButton(1) && freshClick)
{
cell.PlantLevel = 0;
Explosion(cell);
}
}
else if (activeMode == EditMode.rocks)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.ScenaryObject = 1;
}
if (Input.GetMouseButton(1) && freshClick)
{
cell.ScenaryObject = 0;
Explosion(cell);
}
}
else if (activeMode == EditMode.mast)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.ScenaryObject = 2;
}
if (Input.GetMouseButton(1) && freshClick)
{
cell.ScenaryObject = 0;
Explosion(cell);
}
}
else if (activeMode == EditMode.lighthouse)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.ScenaryObject = 3;
}
if (Input.GetMouseButton(1) && freshClick)
{
cell.ScenaryObject = 0;
Explosion(cell);
}
}
else if (activeMode == EditMode.industry)
{
if (Input.GetMouseButton(0) && freshClick)
{
cell.Industry = (int)activeIndustry + 1;
}
if (Input.GetMouseButton(1) && freshClick)
{
cell.Industry = 0;
Explosion(cell);
}
}
else if (activeMode == EditMode.town)
{
if (cell.Town == null)
{
GameObject town = Instantiate(townPrefab);
TownManager manager = town.GetComponent <TownManager>();
town.transform.position = GridCoordinates.ToPosition(cell.coordinates) + new Vector3(0, cell.CentreElevation * GridMetrics.elevationStep, 0);
manager.Init(cell);
cell.Town = manager;
}
}
}
void AddHalfCell(SquareCell cell, GridDirection direction, Vector3 centre, Vector3 v0, Vector3 v1, Vector3 v2, Vector3 va, Vector3 vb, Vector3 vc, Vector3 vd, Vector3 vx, Vector3 vy, Vector3 vz)
{
Vector3 riverbed = centre + Vector3.up * (cell.CentreElevation + GridMetrics.streamBedElevationOffset) * GridMetrics.elevationStep;
Vector3 midSolidEdgePrev = centre + GridMetrics.GetSolidEdge(direction.Previous()) + Vector3.up * (cell.CentreElevation + GridMetrics.streamBedElevationOffset) * GridMetrics.elevationStep;
Vector3 midSolidEdgeNext = centre + GridMetrics.GetSolidEdge(direction.Next()) + Vector3.up * (cell.CentreElevation + GridMetrics.streamBedElevationOffset) * GridMetrics.elevationStep;
SquareCell neighborPrev = cell.GetNeighbor(direction.Previous()) ?? cell;
SquareCell neighborNext = cell.GetNeighbor(direction.Next()) ?? cell;
Vector3 midEdgePrev = centre + GridMetrics.GetEdge(direction.Previous()) + Vector3.up * ((cell.CentreElevation + neighborPrev.CentreElevation) / 2 + GridMetrics.streamBedElevationOffset) * GridMetrics.elevationStep;
Vector3 midEdgeNext = centre + GridMetrics.GetEdge(direction.Next()) + Vector3.up * ((cell.CentreElevation + neighborNext.CentreElevation) / 2 + GridMetrics.streamBedElevationOffset) * GridMetrics.elevationStep;
if (cell.HasRiver)
{
if (cell.HasRiverThroughEdge(direction.Previous()))
{
terrain.AddTriangle(v0, midSolidEdgePrev, riverbed); // split tri into two tris
terrain.AddTriangle(midSolidEdgePrev, v1, riverbed);
}
else
{
terrain.AddTriangle(v0, v1, riverbed);
} // edge with no river
if (cell.HasRiverThroughEdge(direction.Next()))
{
terrain.AddTriangle(v1, midSolidEdgeNext, riverbed); // split tri into two tris
terrain.AddTriangle(midSolidEdgeNext, v2, riverbed);
}
else
{
terrain.AddTriangle(v1, v2, riverbed);
} // edge with no river
}
else
{
terrain.AddTriangle(v0, v1, v2);
}
if (cell.HasRiverThroughEdge(direction.Next()))
{
terrain.AddQuad(v1, va, midEdgeNext, midSolidEdgeNext);
terrain.AddQuad(midSolidEdgeNext, midEdgeNext, vb, v2);
}
else
{
terrain.AddQuad(v1, va, vb, v2);
} // top Edge
if (cell.HasRiverThroughEdge(direction.Previous()))
{
terrain.AddQuad(v1, midSolidEdgePrev, midEdgePrev, vd);
terrain.AddQuad(midSolidEdgePrev, v0, vc, midEdgePrev);
}
else
{
terrain.AddQuad(v1, v0, vc, vd);
} // left Edge
if (cell.HasRiverThroughEdge(direction))
{
}
else
{
terrain.AddQuad(v1, vd, vx, va);
} // direction edge
if (cell.HasRiverThroughEdge(direction.Next2()))
{
}
else
{
terrain.AddQuad(v2, vb, vy, vz);
} // clockwise edge
AddColors(cell, direction);
if (cell.HasRoadThroughEdge(direction.Next()))
{
midEdgeNext = centre + GridMetrics.GetEdge(direction.Next()) + Vector3.up * ((int)cell.GridElevations[direction] + (int)cell.GridElevations[direction.Next2()]) / 2 * GridMetrics.elevationStep;
midSolidEdgeNext = centre + GridMetrics.GetSolidEdge(direction.Next()) + Vector3.up * ((int)cell.GridElevations[direction] + (int)cell.GridElevations[direction.Next2()]) / 2 * GridMetrics.elevationStep;
TriangulateRoadSegment(v1, midSolidEdgeNext, v2, va, midEdgeNext, vb);
}
if (cell.HasRoadThroughEdge(direction.Previous()))
{
midEdgePrev = centre + GridMetrics.GetEdge(direction.Previous()) + Vector3.up * ((int)cell.GridElevations[direction] + (int)cell.GridElevations[direction.Previous2()]) / 2 * GridMetrics.elevationStep;
midSolidEdgePrev = centre + GridMetrics.GetSolidEdge(direction.Previous()) + Vector3.up * ((int)cell.GridElevations[direction] + (int)cell.GridElevations[direction.Previous2()]) / 2 * GridMetrics.elevationStep;
TriangulateRoadSegment(v0, midSolidEdgePrev, v1, vc, midEdgePrev, vd);
}
}