void InitSegmentsIfNull()
{
// if ((segments != null) && (segments.Length == segmentsCount) && (segments[0]!= null)) return;
segments = new quadSegment[segmentsCount];
for (int i = 0; i < segmentsCount; i++)
{
segments[i] = new quadSegment();
}
segmentTris = new int[(segmentsCount - 1) * 4 * 3];
for (int segm = 0; segm < segmentsCount - 1; segm++)
{
int vno = segm * 3;
int ind = segm * 3 * 4;
segmentTris[ind] = vno; segmentTris[ind + 1] = vno + 1; segmentTris[ind + 2] = vno + 2;
ind += 3;
segmentTris[ind] = vno; segmentTris[ind + 1] = vno + 2; segmentTris[ind + 2] = vno + 3; //
ind += 3;
segmentTris[ind] = vno + 2; segmentTris[ind + 1] = vno + 1; segmentTris[ind + 2] = vno + 4; //
ind += 3;
segmentTris[ind] = vno + 3; segmentTris[ind + 1] = vno + 2; segmentTris[ind + 2] = vno + 4; //
}
}
public Mesh GetStreak(Vector3 from, Vector3 to, float width, bool head, bool tail)
{
InitSegmentsIfNull();
quadSegment hsegm = segments[segmentsCount - 1];
quadSegment tsegm = segments[0];
Vector3 vector = to - from;
Vector3 fromA;
Vector3 fromB;
Vector3 toA;
Vector3 toB;
Vector3 side = Vector3.Cross(vector, Vector3.forward).normalized *width / 2;
if (!tail)
{
fromA = prevA;
fromB = prevB;
}
else
{
fromA = from + side;
fromB = from - side;
}
toA = to + side;
toB = to - side;
Vector3 dirA = toA - fromA;
Vector3 dirB = toB - fromB;
Vector3 offA = dirA.normalized * width * 0.5f;
Vector3 offB = dirB.normalized * width * 0.5f;
if (head)
{
hsegm.verts[0] = toA + offA;
hsegm.verts[1] = toB + offB;
}
if (tail)
{
tsegm.verts[0] = fromA - offA;
tsegm.verts[1] = fromB - offB;
}
int till = segmentsCount - (head ? 1 : 0);
int midSegms = segmentsCount - 1 - ((tail ? 1 : 0) + (head ? 1 : 0));
Vector3 stepA = (toA - fromA) / midSegms;
Vector3 stepB = (toB - fromB) / midSegms;
// Vector3 step = (to - from) / midSegms;
for (int i = (tail ? 1 : 0); i < till; i++)
{
quadSegment q = segments[i];
q.verts[0] = fromA; //from+ side;
q.verts[1] = fromB; //from- side;
// from += step;
fromA += stepA;
fromB += stepB;
}
hsegm.SetSection(head ? sectionType.head : sectionType.center);
tsegm.SetSection(tail ? sectionType.tail : sectionType.center);
for (int i = 0; i < segmentsCount - 1; i++)
{
segments[i].setCenter(segments[i + 1]);
}
bool initing = (segmMesh == null);
if (initing)
{
segmMesh = new Mesh();
}
segmMesh.vertices = quadSegment.VertexArrayFrom(segments);
segmMesh.uv = quadSegment.UVArrayFrom(segments);
if (initing)
{
segmMesh.triangles = segmentTris;
}
prevA = toA;
prevB = toB;
if (debug != null)
{
debug.mesh = segmMesh;
}
segmMesh.name = "Segmant Mesh";
return(segmMesh);
}
public void setCenter(quadSegment next)
{
verts[2] = (verts[0] + verts[1] + next.verts[0] + next.verts[1]) / 4;
uv[2] = (uv[0] + uv[1] + next.uv[0] + next.uv[1]) / 4;
}
