public static void triangulate(GameObject gameObject, Material material, List <ConnectedCoord> coords, float size)
{
List <int> indices = new List <int>();
List <Vector3> vertices = new List <Vector3>();
List <Color> colors = new List <Color>();
List <CoordUnderside> processedCenters = new List <CoordUnderside>();
foreach (ConnectedCoord coord in coords)
{
CoordUnderside centerCoord = coord.coord;
List <CoordUnderside> neighbouringCoords = coord.neighbours.OrderBy(c => Math.Atan2(centerCoord.x - c.x, centerCoord.y - c.y)).ToList();
if (neighbouringCoords.Count > 1)
{
addTrianglesForCoord(centerCoord, neighbouringCoords, indices, vertices, colors);
}
processedCenters.Add(centerCoord);
if (vertices.Count > vertexLimit)
{
createMeshSubObject(gameObject, material, size, indices, vertices, colors);
}
}
if (vertices.Count > 0)
{
createMeshSubObject(gameObject, material, size, indices, vertices, colors);
}
}
private static void addTrianglesForCoord(CoordUnderside center,
List <CoordUnderside> corners,
List <int> indices,
List <Vector3> vertices,
List <Color> colors)
{
Vector3 vertexCenter = center.toVector3(1);
for (int i = 0; i < corners.Count; i++)
{
CoordUnderside corner1 = corners[i];
int index2 = i + 1 >= corners.Count ? 0 : i + 1;
CoordUnderside corner2 = corners[index2];
Vector3 vertex1 = corner1.toVector3(1);
Vector3 vertex2 = corner2.toVector3(1);
addTriangle(vertexCenter, vertex1, vertex2, Color.grey, indices, vertices, colors);
}
}
public Island(int islandId, List <Center> centers, Rect simpleExtents)
{
this.islandId = islandId;
this.centers = centers;
this.simpleExtents = simpleExtents;
this.center = new Vector3(simpleExtents.center.x, 0, simpleExtents.center.y);
this.corners = new List <Corner>();
foreach (Center c in centers)
{
foreach (Corner corner in c.corners)
{
if (!corners.Contains(corner))
{
corners.Add(corner);
}
}
}
List <Corner> rimCorners = corners.Where(c => c.isIslandRim).ToList();
Coord[] cornerCoords = rimCorners.Select(c => new Coord(c.coord.x, c.coord.elevation, c.coord.y)).ToArray();
float lowestRimCorner = cornerCoords.Aggregate((prev, next) => prev.elevation < next.elevation ? prev : next).elevation;
Coord[] coords = centers.Select(c => new Coord(c.coord.x, -lowestRimCorner, c.coord.y)).ToArray();
undersideCoords = new List <ConnectedCoord>(centers.Count);
for (int i = 0; i < centers.Count; i++)
{
Center center = centers[i];
CoordUnderside centerCoord = new CoordUnderside(coords[i], false);
List <CoordUnderside> neighbouringCoords = center.neighbours
.Where(c => centers.Contains(c))
.Select(c => new CoordUnderside(coords[centers.IndexOf(c)], false))
.ToList();
IEnumerable <CoordUnderside> neighbouringRimCoords = center.corners
.Where(c => c.isIslandRim)
.Select(c => new CoordUnderside(cornerCoords[rimCorners.IndexOf(c)], true));
neighbouringCoords.AddRange(neighbouringRimCoords);
undersideCoords.Add(new ConnectedCoord(centerCoord, neighbouringCoords));
}
}
public ConnectedCoord(CoordUnderside coord, List <CoordUnderside> neighbours)
{
this.coord = coord;
this.neighbours = neighbours;
}