/// <summary>
/// ビルドしてミックスする
/// </summary>
/// <returns></returns>
RefStructure BuildAndMix()
{
var mat = transform.localToWorldMatrix;
var a = _a.Build(mat);
var b = _b.Build(mat);
var dst = DistanceMixer.Mix(a, b, 10f, _edgeBuilder);
return(dst);
}
/// <summary>
/// 枝を再起的に生成する
/// </summary>
/// <param name="s"></param>
/// <param name="depth"></param>
/// <param name="parent"></param>
/// <returns></returns>
RefParticle MakeBranch(int depth, int maxDepth, RefParticle parent, float angle)
{
var t = depth / (float)maxDepth;
angle += (_branchAngleCurve.Evaluate(t) * _branchAngleFactor) * Mathf.Deg2Rad;
var dir = new Vector2(Mathf.Cos(angle), Mathf.Sin(angle));
var length = _branchLengthCurve.Evaluate(t) * _branchLengthFactor;
var pos = parent.position + dir * length;
var current = _branchParticleBuilder.Add(_s, pos, t);
_branchEdgeBuilder.Add(_s, parent, current, t);
if (depth > maxDepth)
{
return(current);
}
else
{
var child = MakeBranch(++depth, maxDepth, current, angle);
// 枝を伸ばせる場合は枝を伸ばす
if (_subBranchArchitect && _connectionEdgeBuilder)
{
// Debug.Log("before: " + _s.GetParticleCount());
var subBranchMatrix = Matrix4x4.TRS(pos, Quaternion.AngleAxis(angle * Mathf.Rad2Deg, Vector3.forward), Vector3.one);
var branch = _subBranchArchitect.Build(subBranchMatrix);
// var branch = _subBranchArchitect.Build(Matrix4x4.identity);
// Debug.Log(branch.GetParticleCount());
_s = DistanceMixer.Mix(_s, branch, 3f, _connectionEdgeBuilder);
// Debug.Log("after: " + _s.GetParticleCount());
}
return(child);
}
}