public void BuildMesh()
{
float roadWidth = city.settings.roadDimensions.x;
float roadHeight = city.settings.roadDimensions.y;
Texture texture = city.settings.roadTexture;
Vector3 from = city.transform.TransformPoint(parentNode.Position);
Vector3 to = city.transform.TransformPoint(childNode.Position);
Vector3 direction = (from - to).normalized;
Vector3 offset = direction * roadWidth / 2f;
from -= offset; //so the endings don't go all the way to the point, they line up neatly with intersections
to += offset;
transform.position = from;
float length = Vector3.Distance(from, to);
Vector3[] vertices = new Vector3[4];
vertices[0] = -transform.right * roadWidth / 2f;
vertices[1] = (transform.forward * length) - (transform.right * roadWidth / 2f);
vertices[2] = (transform.forward * length) + (transform.right * roadWidth / 2f);
vertices[3] = transform.right * roadWidth / 2f;
Vector2 mainTexScale;
GetComponent <MeshFilter>().mesh = HullMesher2D.BuildPolygon(vertices, out mainTexScale);
Material mat = GetComponent <MeshRenderer>().material;
if (texture != null)
{
mat.mainTexture = texture;
mat.mainTextureScale = mainTexScale;
}
else
{
mat.color = Color.gray;
}
Mesh m = GetComponent <MeshFilter>().mesh;
Quaternion rotation = Quaternion.identity;
Vector3 z = Vector3.zero;
Matrix4x4 op0 = Matrix4x4.TRS(z, rotation, Vector3.one);
Matrix4x4 op1 = Matrix4x4.TRS(transform.up * roadHeight, rotation, Vector3.one);
Matrix4x4[] ops = new Matrix4x4[] { op0, op1, };
MeshExtrusion.ExtrudeMesh(m, GetComponent <MeshFilter>().mesh, ops, true);
m.RecalculateNormals();
m.RecalculateBounds();
transform.position = from;
transform.LookAt(to);
{
Func <Vector3, Transform, Vector3> a = (v, t) => {
Vector3 b;
//converts the vector from this local space into world space, then converts it again into the transforms local space
b = t.InverseTransformPoint(transform.TransformPoint(v)); //store the vertices in world coordinates
GizmosToDraw.Add(b);
return(b);
};
//maybe add these vertices to the intersections vertex list?
parentNode.AddVerts(a(vertices[0], parentNode.transform), a(vertices[3], parentNode.transform));
childNode.AddVerts(a(vertices[1], childNode.transform), a(vertices[2], childNode.transform));
}
}
