void CollectVertices()
{
// Collect all gameobjects, with tag Wall
GameObject[] gos = GameObject.FindGameObjectsWithTag("Wall");
// Get all vertices from those gameobjects
// WARNING: Should only use 2D objects, like unity Quads for now..
foreach (GameObject go in gos)
{
Mesh goMesh = go.GetComponent <MeshFilter>().mesh;
int[] tris = goMesh.triangles;
List <int> uniqueTris = new List <int>();
uniqueTris.Clear();
// Collect unique tri's
for (int i = 0; i < tris.Length; i++)
{
if (!uniqueTris.Contains(tris[i]))
{
uniqueTris.Add(tris[i]);
}
} // for tris
// Sort by pseudoangle
List <pseudoObj> all = new List <pseudoObj>();
for (int n = 0; n < uniqueTris.Count; n++)
{
float x = goMesh.vertices[uniqueTris[n]].x;
float y = goMesh.vertices[uniqueTris[n]].y;
float a = copysign(1 - x / (Mathf.Abs(x) + Mathf.Abs(y)), y);
pseudoObj o = new pseudoObj();
o.pAngle = a;
o.point = goMesh.vertices[uniqueTris[n]];
all.Add(o);
}
// Actual sorting
all.Sort(delegate(pseudoObj c1, pseudoObj c2) { return(c1.pAngle.CompareTo(c2.pAngle)); });
// Get unique vertices to list
List <Vector3> uniqueVerts = new List <Vector3>();
uniqueTris.Clear();
for (int n = 0; n < all.Count; n++)
{
uniqueVerts.Add(all[n].point);
}
// Add world borders
int tempRange = 990;
Camera cam = Camera.main;
Vector3 b1 = cam.ScreenToWorldPoint(new Vector3(-tempRange, -tempRange, Camera.main.nearClipPlane + 0.1f + tempRange)); // bottom left
Vector3 b2 = cam.ScreenToWorldPoint(new Vector3(-tempRange, cam.pixelHeight + tempRange, cam.nearClipPlane + 0.1f + tempRange)); // top left
Vector3 b3 = cam.ScreenToWorldPoint(new Vector3(cam.pixelWidth + tempRange, cam.pixelHeight, cam.nearClipPlane + 0.1f + tempRange)); // top right
Vector3 b4 = cam.ScreenToWorldPoint(new Vector3(cam.pixelWidth + tempRange, -tempRange, cam.nearClipPlane + 0.1f + tempRange)); // bottom right
// Get world borders as vertices
Segment2D seg1 = new Segment2D();
seg1.a = new Vector2(b1.x, b1.y);
seg1.b = new Vector2(b2.x, b2.y);
segments.Add(seg1);
seg1.a = new Vector2(b2.x, b2.y);
seg1.b = new Vector2(b3.x, b3.y);
segments.Add(seg1);
seg1.a = new Vector2(b3.x, b3.y);
seg1.b = new Vector2(b4.x, b4.y);
segments.Add(seg1);
seg1.a = new Vector2(b4.x, b4.y);
seg1.b = new Vector2(b1.x, b1.y);
segments.Add(seg1);
// Get segments from unique vertices
for (int n = 0; n < uniqueVerts.Count; n++)
{
// Segment start
Vector3 wPos1 = go.transform.TransformPoint(uniqueVerts[n]);
// Segment end
Vector3 wPos2 = go.transform.TransformPoint(uniqueVerts[(n + 1) % uniqueVerts.Count]);
// TODO: duplicate of unique verts?
uniquePoints.Add(wPos1);
Segment2D seg = new Segment2D();
seg.a = new Vector2(wPos1.x, wPos1.y);
seg.b = new Vector2(wPos2.x, wPos2.y);
segments.Add(seg);
//GLDebug.DrawLine(wPos1, wPos2,Color.white,10);
}
} // foreach gameobject
} // CollectVertices
void CollectVertices ()
{
// Collect all gameobjects, with tag Wall
GameObject[] gos = GameObject.FindGameObjectsWithTag("Wall");
// Get all vertices from those gameobjects
// WARNING: Should only use 2D objects, like unity Quads for now..
foreach (GameObject go in gos)
{
Mesh goMesh = go.GetComponent<MeshFilter>().mesh;
int[] tris = goMesh.triangles;
List<int> uniqueTris = new List<int>();
uniqueTris.Clear();
// Collect unique tri's
for (int i = 0; i < tris.Length; i++)
{
if (!uniqueTris.Contains(tris[i]))
{
uniqueTris.Add(tris[i]);
}
} // for tris
// Sort by pseudoangle
List<pseudoObj> all = new List<pseudoObj>();
for (int n=0;n<uniqueTris.Count;n++)
{
float x= goMesh.vertices[uniqueTris[n]].x;
float y= goMesh.vertices[uniqueTris[n]].y;
float a = copysign(1-x/(Mathf.Abs (x)+Mathf.Abs(y)),y);
pseudoObj o = new pseudoObj();
o.pAngle = a;
o.point = goMesh.vertices[uniqueTris[n]];
all.Add(o);
}
// Actual sorting
all.Sort(delegate(pseudoObj c1, pseudoObj c2) { return c1.pAngle.CompareTo(c2.pAngle); });
// Get unique vertices to list
List<Vector3> uniqueVerts = new List<Vector3>();
uniqueTris.Clear();
for (int n=0;n<all.Count;n++)
{
uniqueVerts.Add(all[n].point);
}
// Add world borders
int tempRange = 990;
Camera cam = Camera.main;
Vector3 b1 = cam.ScreenToWorldPoint(new Vector3(-tempRange, -tempRange, Camera.main.nearClipPlane + 0.1f+tempRange)); // bottom left
Vector3 b2 = cam.ScreenToWorldPoint(new Vector3(-tempRange, cam.pixelHeight+tempRange, cam.nearClipPlane + 0.1f+tempRange)); // top left
Vector3 b3 = cam.ScreenToWorldPoint(new Vector3(cam.pixelWidth+tempRange, cam.pixelHeight, cam.nearClipPlane + 0.1f+tempRange)); // top right
Vector3 b4 = cam.ScreenToWorldPoint(new Vector3(cam.pixelWidth+tempRange, -tempRange, cam.nearClipPlane + 0.1f+tempRange)); // bottom right
// Get world borders as vertices
Segment2D seg1 = new Segment2D();
seg1.a = new Vector2(b1.x,b1.y);
seg1.b = new Vector2(b2.x,b2.y);
segments.Add(seg1);
seg1.a = new Vector2(b2.x,b2.y);
seg1.b = new Vector2(b3.x,b3.y);
segments.Add(seg1);
seg1.a = new Vector2(b3.x,b3.y);
seg1.b = new Vector2(b4.x,b4.y);
segments.Add(seg1);
seg1.a = new Vector2(b4.x,b4.y);
seg1.b = new Vector2(b1.x,b1.y);
segments.Add(seg1);
// Get segments from unique vertices
for (int n=0;n<uniqueVerts.Count;n++)
{
// Segment start
Vector3 wPos1 = go.transform.TransformPoint(uniqueVerts[n]);
// Segment end
Vector3 wPos2 = go.transform.TransformPoint(uniqueVerts[(n+1) % uniqueVerts.Count]);
// TODO: duplicate of unique verts?
uniquePoints.Add(wPos1);
Segment2D seg = new Segment2D();
seg.a = new Vector2(wPos1.x,wPos1.y);
seg.b = new Vector2(wPos2.x, wPos2.y);
segments.Add(seg);
//GLDebug.DrawLine(wPos1, wPos2,Color.white,10);
}
} // foreach gameobject
} // CollectVertices
