/// <summary>
/// Create the vertices of hose mesh.
/// </summary>
/// <param name="curve"></param>
/// <param name="segments"></param>
/// <param name="differ"></param>
/// <param name="isSeal">Is seal at both ends of hose?</param>
/// <returns>Vertices array.</returns>
protected Vector3[] CreateVertices(IMonoCurve curve, int segments, float differ, bool isSeal = false)
{
var vertices = new List <Vector3>();
for (int i = 0; i < segments - 1; i++)
{
var len = differ * i;
var node = curve.LocalEvaluate(len);
var tangent = (curve.LocalEvaluate(len + differ) - node);
vertices.AddRange(MeshBuildUtility.BuildPolygonVertices(polygon, radius, node, Quaternion.LookRotation(tangent)));
}
var lastNode = curve.LocalEvaluate(curve.Length);
var lastTangent = (lastNode - curve.LocalEvaluate(curve.Length - differ));
vertices.AddRange(MeshBuildUtility.BuildPolygonVertices(polygon, radius, lastNode, Quaternion.LookRotation(lastTangent)));
if (isSeal)
{
var polygonVertices = polygon + 1;
vertices.Add(curve.LocalEvaluate(0));
vertices.AddRange(vertices.GetRange(0, polygonVertices));
var lastPolygonStart = polygonVertices * (segments - 1);
vertices.Add(lastNode);
vertices.AddRange(vertices.GetRange(lastPolygonStart, polygonVertices));
}
return(vertices.ToArray());
}
/// <summary>
/// Create triangles of hose side mesh.
/// </summary>
/// <param name="segments"></param>
/// <returns></returns>
protected int[] CreateSideTriangles(int segments)
{
var polygonVertices = polygon + 1;
var firstSide = polygonVertices * segments;
var triangles = MeshBuildUtility.BuildPolygonTriangles(polygon, firstSide, firstSide + 1, false);
var lastSide = firstSide + polygonVertices + 1;
triangles.AddRange(MeshBuildUtility.BuildPolygonTriangles(polygon, lastSide, lastSide + 1));
return(triangles.ToArray());
}
/// <summary>
/// Create uv of hose mesh.
/// </summary>
/// <param name="segments"></param>
/// <param name="isSeal">Is seal at both ends of hose?</param>
/// <returns>UV array.</returns>
protected Vector2[] CreateUV(int segments, bool isSeal = false)
{
var uv = MeshBuildUtility.BuildPrismUV(polygon, segments);
if (isSeal)
{
for (int i = 0; i < 2; i++)
{
uv.Add(Vector2.one * 0.5f);
uv.AddRange(MeshBuildUtility.BuildPolygonUV(polygon, i == 0));
}
}
return(uv.ToArray());
}
/// <summary>
/// Create triangles of hose mesh.
/// </summary>
/// <param name="segments"></param>
/// <param name="isSeal">Is seal at both ends of hose?</param>
/// <returns>Triangles array.</returns>
protected int[] CreateTriangles(int segments, bool isSeal = false)
{
var triangles = MeshBuildUtility.BuildPrismTriangles(polygon, segments, 0);
return(triangles.ToArray());
}