/**
* <summary>
* Splits a road by the heightmap grid, allowing perfect fitting
* </summary>
*/
public void GridSplit(bool debug)
{
foreach (Road r in Roads)
{
List <Node> NewNodes = new List <Node>();
for (int i = 0; i < r.nodes.Count - 1; i++)
{
Node n1 = r.nodes[i];
Node n2 = r.nodes[i + 1];
Vector3 vi;
// out i1, v1s+n1, dir1, v2s + n2, dir2
NewNodes.Add(n1);
for (float j = 0; j < 256; j++)
{
Vector3 l1 = new Vector3(j * 10, 0, 0);
Vector3 l2 = new Vector3(j * 10, 0, 5000);
bool did = MathTools.LineLineIntersection(out vi, n1.pos, n2.pos - n1.pos, l1, l2 - l1);
if (vi.x > n1.pos.x && vi.x < n2.pos.x)
{
r.ds(vi, "IIIII:" + r.name);
Node n = new Node(vi, n1.NodeName);
NewNodes.Add(n);
}
}
NewNodes.Add(n2);
}
r.nodes.Clear();
r.nodes = NewNodes;
}
}
/**
* <summary>
* v1s = start of segment 1
* v1e = end of segment 1
* v2s = start of segment 2
* v2e = end of segment 2
* mv1e = pulled back position on v1-v2
* mvs2 = pulled back position on v2-v3
* n1 = planar normal of v1
* n2 = planar normal of v2
* </summary>
* */
public void CreateSmoothConnection(Vector3 v1s, Vector3 v1e, Vector3 v2s, Vector3 v2e,
Vector3 mv1e, Vector3 mv2s,
Vector3 n1, Vector3 n2)
{
float numdivs = 5;
float step = 1.0f / numdivs;
//ds(v1s, "v1s");
//ds(v1e, "v1e");
//ds(v2s, "v2s");
//ds(v2e, "v2e");
// ds(mv1e, "mv1e");
// ds(mv2s, "mv2s");
//ds(mv1e + n1, "mv1e+n1");
//ds(mv2s + n2, "mv2s+n2");
Vector3 i1;
Vector3 dir1 = (v1e - v1s);
Vector3 dir2 = (v2e - v2s);
//we use the 2d version of the vectors
bool b = MathTools.LineLineIntersection(out i1, v1s + n1, dir1, v2s + n2, dir2);
if (b == false)
{
CreateConnection(mv1e, mv2s, n1, n2);
return;
}
//Debug.Log(b);
//Debug.Log(i1);
//ds(i1, "i1");
Vector3 i2;
dir1 = (v1e - v1s);
dir2 = (v2e - v2s);
b = MathTools.LineLineIntersection(out i2, v1s - n1, dir1, v2s - n2, dir2);
//inner curve
Bezier bez1 = new Bezier(mv1e + n1, i1, i1, mv2s + n2);
//outer curve
Bezier bez2 = new Bezier(mv1e - n1, i2, i2, mv2s - n2);
for (float f = 0; f < 1; f += step)
{
Vector3 pt1 = bez1.GetPointAtTime(f);
//ds(pt1, "bezpt1");
Vector3 pt2 = bez2.GetPointAtTime(f);
//ds(pt2, "bezpt2");
Vector3 pt2e = bez2.GetPointAtTime(f + step);
//ds(pt2e, "bezpt2e");
Vector3 pt1e = bez1.GetPointAtTime(f + step);
// ds(pt1e, "bezpt1e");
//tri1
v.Add(pt1);
t.Add(v.Count - 1);
u.Add(new Vector2(1, f + step));
v.Add(pt2e);
t.Add(v.Count - 1);
u.Add(new Vector2(0, f));
v.Add(pt2);
t.Add(v.Count - 1);
u.Add(new Vector2(0, f + step));
//tri 2
v.Add(pt1e);
t.Add(v.Count - 1);
u.Add(new Vector2(0, f));
v.Add(pt2e);
t.Add(v.Count - 1);
u.Add(new Vector2(1, f));
v.Add(pt1);
t.Add(v.Count - 1);
u.Add(new Vector2(0, f + step));
}
/*
*
* b = MathTools.LineLineIntersection(out i1, v1s - n1, dir1, v2s - n2, dir2);
* Debug.Log(i1);
*
* go = GameObject.CreatePrimitive(PrimitiveType.Sphere);
* go.transform.position = i1;
* go.transform.parent = this.go.transform;
*/
}