public void NewTestScriptSimplePasses()
{
Curve c = Arc.TryInit(roadPoints[0], roadPoints[1], Mathf.PI / 2);
Curve cr = c.reversed();
Assert.True(Algebra.isclose(c.At(0f), cr.At(1f)));
float a1 = c.Angle_2d(1f);
float a2 = cr.Angle_2d(0f);
//float angleDiff = (a2 - a1) / Mathf.PI;
Debug.Log(a1);
Debug.Log(a2);
Assert.True(Algebra.isclose(a2, Mathf.PI / 2));
}
/*create meash for linear rendered 3D object*/
public void CreateMesh(Curve curve, float offset, Material linearMaterial, Material crossMaterial, Polygon cross)
{
List <Vector2> fragments = cross.toFragments();
int segmentCount = Mathf.CeilToInt(curve.length * curve.maximumCurvature / maxAngleDiff);
int base_vcount = (segmentCount + 1) * fragments.Count;
int base_tcount = segmentCount * 2 * 3 * fragments.Count;
int[] crossTriangles = cross.createMeshTriangle();
int cross_vcount = fragments.Count;
int cross_tcount = crossTriangles.Length;
Vector2[] crossUVs = cross.createUV();
Vector3[] all_vertices = new Vector3[base_vcount + 2 * cross_vcount];
int[] linear_triangles = new int[base_tcount];
Vector2[] linearUVs = new Vector2[base_vcount];
for (int i = 0; i != segmentCount + 1; ++i)
{
Vector3 roadPoint = curve.At(1.0f / segmentCount * i);
float direction = curve.Angle_2d(1.0f / segmentCount * i) - Mathf.PI / 2;
List <Vector3> localFragments = fragments.ConvertAll((input) => roadPoint +
Algebra.toVector3(Algebra.twodRotate(Vector2.right * (offset + input.x), direction)) +
Vector3.up * input.y);
/*stretch Z*/
List <float> cross_y_offset = cross.getVResizeOffset(roadPoint.y);
for (int j = 0; j != localFragments.Count; ++j)
{
localFragments[j] += Vector3.up * cross_y_offset[j];
}
float cross_diameter = fragments.Sum((input) => input.magnitude);
float partial_diameter = 0f;
for (int j = i * cross_vcount, local_j = 0; j != i * cross_vcount + cross_vcount; ++j, ++local_j)
{
all_vertices[j] = localFragments[local_j];
linearUVs[j] = new Vector2(partial_diameter / cross_diameter, i * 1.0f / segmentCount * curve.length / cross_diameter);
partial_diameter += fragments[local_j].magnitude;
}
}
for (int i = 0; i != cross_vcount; ++i)
{
all_vertices[base_vcount + i] = all_vertices[i];
all_vertices[base_vcount + cross_vcount + i] = all_vertices[base_vcount - cross_vcount + i];
}
for (int i = 0, triangle = 0; i != segmentCount; ++i)
{
for (int j = 0; j != cross_vcount; ++j, triangle += 6)
{
linear_triangles[triangle] = i * cross_vcount + j;
linear_triangles[triangle + 1] = i * cross_vcount + (j + 1) % cross_vcount;
linear_triangles[triangle + 2] = (i + 1) * cross_vcount + j;
linear_triangles[triangle + 3] = i * cross_vcount + (j + 1) % cross_vcount;
linear_triangles[triangle + 4] = (i + 1) * cross_vcount + (j + 1) % cross_vcount;
linear_triangles[triangle + 5] = (i + 1) * cross_vcount + j;
}
}
int[] cross_triangles = new int[2 * cross_tcount];
/*Add tris at start*/
for (int j = 0; j != cross_tcount; ++j)
{
cross_triangles[j] = crossTriangles[j] + base_vcount;
}
/*Add tris at end*/
for (int j = 0; j != cross_tcount; ++j)
{
if (j % 3 == 1)
{
cross_triangles[cross_tcount + j] = crossTriangles[j + 1];
}
else
{
if (j % 3 == 2)
{
cross_triangles[cross_tcount + j] = crossTriangles[j - 1];
}
else
{
cross_triangles[cross_tcount + j] = crossTriangles[j];
}
}
cross_triangles[cross_tcount + j] += (base_vcount + cross_vcount);
}
Vector2[] modifiedCrossUVs = new Vector2[base_vcount + 2 * cross_vcount];
for (int i = 0; i != base_vcount; ++i)
{
modifiedCrossUVs[i] = linearUVs[i];
}
for (int i = 0; i != cross_vcount; ++i)
{
modifiedCrossUVs[i + base_vcount] = modifiedCrossUVs[i + base_vcount + cross_vcount] = crossUVs[i];
}
GetComponent <MeshRenderer>().sharedMaterials = new Material[2] {
crossMaterial, linearMaterial
};
MeshFilter meshFilter = GetComponent <MeshFilter>();
if (meshFilter.sharedMesh == null)
{
meshFilter.sharedMesh = new Mesh();
}
meshFilter.sharedMesh.subMeshCount = 2;
meshFilter.sharedMesh.SetVertices(all_vertices.ToList());
meshFilter.sharedMesh.SetTriangles(cross_triangles, 0);
meshFilter.sharedMesh.SetTriangles(linear_triangles, 1);
meshFilter.sharedMesh.SetUVs(0, modifiedCrossUVs.ToList());
}