private void TriangulateRoadEdge(Vector3 centre, Vector3 ml, Vector3 mr, float index)
{
Roads.AddTriangle(centre, ml, mr);
Roads.AddTriangleUV(new Vector3(1f, 0f), new Vector3(0f, 0f), new Vector3(0f, 0f));
var indices = new Vector3(index, index, index);
Roads.AddTriangleCellData(indices, weights1);
}
/// <summary>
/// Creates the geometry for connecting different roads that converge on the cell center.
/// </summary>
void TriangulateRoadEdge(Vector3 center, Vector3 mL, Vector3 mR, float index)
{
Roads.AddTriangle(center, mL, mR);
Roads.AddTriangleUV(new Vector2(1f, 0f), new Vector2(0f, 0f), new Vector2(0f, 0f));
Vector3 indices;
indices.x = indices.y = indices.z = index;
Roads.AddTriangleCellData(indices, weights1);
}
private void TriangulateRoad(
Vector3 centre, Vector3 ml, Vector3 mr,
EdgeVertices e, bool hasRoadThroughEdge, float index)
{
if (hasRoadThroughEdge)
{
var indices = new Vector3(index, index, index);
var mc = Vector3.Lerp(ml, mr, 0.5f);
TriangulateRoadSegment(ml, mc, mr, e.v2, e.v3, e.v4, weights1, weights1, indices);
Roads.AddTriangle(centre, ml, mc);
Roads.AddTriangle(centre, mc, mr);
Roads.AddTriangleUV(new Vector3(1f, 0f), new Vector3(0f, 0f), new Vector3(1f, 0f));
Roads.AddTriangleUV(new Vector3(1f, 0f), new Vector3(1f, 0f), new Vector3(0f, 0f));
Roads.AddTriangleCellData(indices, weights1);
Roads.AddTriangleCellData(indices, weights1);
}
else
{
TriangulateRoadEdge(centre, ml, mr, index);
}
}
/// <summary>
/// Creates road geometry for cell center.
/// </summary>
void TriangulateRoad(Vector3 center, Vector3 mL, Vector3 mR, EdgeVertices e, bool hasRoadThroughCellEdge, float index)
{
if (hasRoadThroughCellEdge) // Road in this direction ?
{
Vector3 indices;
indices.x = indices.y = indices.z = index;
Vector3 mC = Vector3.Lerp(mL, mR, 0.5f);
TriangulateRoadSegment(mL, mC, mR, e.v2, e.v3, e.v4, weights1, weights1, indices);
// Center connection triangles
Roads.AddTriangle(center, mL, mC);
Roads.AddTriangle(center, mC, mR);
Roads.AddTriangleUV(new Vector2(1f, 0f), new Vector2(0f, 0f), new Vector2(1f, 0f));
Roads.AddTriangleUV(new Vector2(1f, 0f), new Vector2(1f, 0f), new Vector2(0f, 0f));
Roads.AddTriangleCellData(indices, weights1);
Roads.AddTriangleCellData(indices, weights1);
}
else
{
// Then road exists in cell but not at this edge so draw auxiliary road geometry
TriangulateRoadEdge(center, mL, mR, index);
}
}