private static void AddPolygon(GOTempPoly poly, Vector3 normal)
{
Profiler.BeginSample("Add polygon");
int ind1 = AddVertex(poly.vertices[0], normal);
for (int i = 1; i < poly.vertices.Count - 1; i++)
{
int ind2 = AddVertex(poly.vertices[i], normal);
int ind3 = AddVertex(poly.vertices[i + 1], normal);
bufIndices.Add(ind1);
bufIndices.Add(ind2);
bufIndices.Add(ind3);
}
Profiler.EndSample();
}
public static GOTempPoly WrapPolygon(GOTempPoly polygon, Vector3[] convertedGeometry, GOMesh terrainMesh)
{
bool[] positive = new bool[polygon.vertices.Count];
int positiveCount = 0;
for (int i = 0; i < polygon.vertices.Count; i++)
{
positive [i] = ContainsPoint2D(convertedGeometry, polygon.vertices[i]);
if (positive[i])
{
positiveCount++;
}
}
if (positiveCount == 0)
{
return(null); // Fully outside the shape
}
return(polygon); // Return all polygon that are partially inside the shape
}
public static void ProjectFeature(GOFeature feature, GOMesh terrainMesh, float maxAngle)
{
Profiler.BeginSample("Project feature");
Vector3[] vertices = terrainMesh.vertices;
int[] triangles = terrainMesh.triangles;
GOTempPoly poly;
for (int i = 0; i < triangles.Length; i += 3)
{
int i1 = triangles[i];
int i2 = triangles[i + 1];
int i3 = triangles[i + 2];
Vector3 v1 = feature.goTile.position + vertices [i1];
Vector3 v2 = feature.goTile.position + vertices [i2];
Vector3 v3 = feature.goTile.position + vertices [i3];
Vector3 side1 = v2 - v1;
Vector3 side2 = v3 - v1;
Vector3 normal = Vector3.Cross(side1, side2).normalized;
////
// if( Vector3.Angle(-Vector3.forward, normal) >= maxAngle )
// continue;
//
poly = new GOTempPoly(v1, v2, v3);
poly = GOTempPoly.WrapPolygon(poly, feature.convertedGeometry.ToArray(), terrainMesh);
if (poly == null)
{
continue;
}
AddPolygon(poly, normal);
}
Profiler.EndSample();
}