public static void CreateHexagon(VegetationMaskArea mask)
{
float radius = GetRadius(mask);
Vector3[] hexagon = ShapeCreator.CreateHexagon(mask.transform.position, radius);
mask.Nodes.Clear();
mask.AddNodesToEnd(hexagon);
// center main handle, implicitly updates the mask
CenterMainHandle(mask);
}
/// <summary>
/// Create Biome masks for the specified bounds
/// </summary>
/// <param name="bounds"></param>
private void CreateMasks(Bounds bounds)
{
float outerRadius = GetOuterRadius(bounds);
// bounds for clipping
Vector2[] clipPolygon = editor.GetBiomeClipPolygon(bounds);
float density = editor.extension.biomeSettings.density;
List <Vector3> positions = GetPositions(bounds);
foreach (Vector3 position in positions)
{
// skip randomly
if (density != 1 && UnityEngine.Random.Range(0f, 1f) >= density)
{
continue;
}
Vector3[] hexagon = ShapeCreator.CreateHexagon(position, outerRadius);
// clip, convert to vector2
Vector2[] polygonXY = hexagon.Select(item => new Vector2(item.x, item.z)).ToArray();
Vector2[] clippedPoints = SutherlandHodgman.GetIntersectedPolygon(polygonXY, clipPolygon);
if (clippedPoints == null || clippedPoints.Length < 3)
{
continue;
}
// convert back to vector3
hexagon = clippedPoints.Select(item => new Vector3(item.x, 0, item.y)).ToArray();
int maskId = editor.GetNextMaskId();
List <Vector3> nodes = hexagon.OfType <Vector3>().ToList();
// apply random shape if requested
if (editor.extension.shapeSettings.randomShape)
{
nodes = ShapeCreator.CreateRandomShape(nodes, //
editor.extension.shapeSettings.RandomConvexity, //
editor.extension.shapeSettings.keepOriginalPoints, //
editor.extension.shapeSettings.RandomPointsCount, //
editor.extension.shapeSettings.randomAngle, //
editor.extension.shapeSettings.douglasPeuckerReductionTolerance);
}
CreateBiomeMaskArea("Biome Mask " + maskId, "Mask " + maskId, position, nodes);
}
}
