private void BuildSegment(BezierSplineSegment ss, BezierSplinePoint pp, BezierSplinePoint sp, BezierSplinePoint ep, BezierSplinePoint np)
{
PreparePoint(pp, sp, ep);
PreparePoint(sp, ep, np);
ss.m_startpos = sp.m_point;
ss.m_endpos = ep.m_point;
ss.m_startctrl = ss.m_startpos + sp.m_nextctrl;
ss.m_endctrl = ss.m_endpos + ep.m_prevctrl;
if (sp.m_type == SplinePointType.Corner && ep.m_type == SplinePointType.Corner)
{
ss.m_type = SplineSegmentType.Linear;
}
else
{
ss.m_type = SplineSegmentType.Curve;
}
ss.m_startlen = m_length;
float seglen = GetLength(ss);
m_length += seglen;
ss.m_length = seglen;
ss.m_endlen = m_length;
switch (m_reparam)
{
case SplineReparamType.None:
ss.m_params = null;
ss.m_precomps = null;
break;
case SplineReparamType.Simple:
{
m_precompdiv = 1 / (float)m_stepcount;
float param = 0, length = 0;
Vector3 prev, next;
ss.m_params = new float[m_stepcount + 1];
ss.m_precomps = new float[m_stepcount + 1];
for (int i = 1; i < m_stepcount + 1; ++i)
{
prev = GetPosition(ss, param);
param += m_precompdiv;
next = GetPosition(ss, param);
length += (next - prev).magnitude;
ss.m_precomps[i] = length / seglen;
ss.m_params[i] = param;
}
ss.m_params[0] = 0;
ss.m_params[m_stepcount] = 1;
ss.m_precomps[0] = 0;
ss.m_precomps[m_stepcount] = 1;
m_precompdiv = 1 / (float)m_stepcount;
}
break;
}
}
private void PreparePoint(BezierSplinePoint pp, BezierSplinePoint pt, BezierSplinePoint np)
{
switch (pt.m_type)
{
case SplinePointType.Bezier:
pt.m_nextctrl = -pt.m_prevctrl;
break;
case SplinePointType.Smooth:
pt.m_prevctrl = -0.25f * (np.m_point - pp.m_point);
pt.m_nextctrl = -0.25f * (pp.m_point - np.m_point);
break;
case SplinePointType.Corner:
pt.m_prevctrl = Vector3.zero;
pt.m_nextctrl = Vector3.zero;
break;
case SplinePointType.BezierCorner:
break;
}
}
public BezierSplinePointSerializable(BezierSplinePoint other)
{
this.position = other.position;
this.rotation = other.rotation;
this.controlPoint = other.controlPoint;
}
public BezierSpline(BezierSplinePoint a, BezierSplinePoint b)
{
this.a = a;
this.b = b;
}
private void PreparePoint(BezierSplinePoint pp, BezierSplinePoint pt, BezierSplinePoint np)
{
switch(pt.m_type)
{
case SplinePointType.Bezier:
pt.m_nextctrl = -pt.m_prevctrl;
break;
case SplinePointType.Smooth:
pt.m_prevctrl = -0.25f * (np.m_point - pp.m_point);
pt.m_nextctrl = -0.25f * (pp.m_point - np.m_point);
break;
case SplinePointType.Corner:
pt.m_prevctrl = Vector3.zero;
pt.m_nextctrl = Vector3.zero;
break;
case SplinePointType.BezierCorner:
break;
}
}
private void BuildSegment(BezierSplineSegment ss, BezierSplinePoint pp, BezierSplinePoint sp, BezierSplinePoint ep, BezierSplinePoint np)
{
PreparePoint(pp, sp, ep);
PreparePoint(sp, ep, np);
ss.m_startpos = sp.m_point;
ss.m_endpos = ep.m_point;
ss.m_startctrl = ss.m_startpos + sp.m_nextctrl;
ss.m_endctrl = ss.m_endpos + ep.m_prevctrl;
if(sp.m_type == SplinePointType.Corner && ep.m_type == SplinePointType.Corner)
{
ss.m_type = SplineSegmentType.Linear;
}
else
{
ss.m_type = SplineSegmentType.Curve;
}
ss.m_startlen = m_length;
float seglen = GetLength(ss);
m_length += seglen;
ss.m_length = seglen;
ss.m_endlen = m_length;
switch(m_reparam)
{
case SplineReparamType.None:
ss.m_params = null;
ss.m_precomps = null;
break;
case SplineReparamType.Simple:
{
m_precompdiv = 1 / (float)m_stepcount;
float param = 0, length = 0;
Vector3 prev, next;
ss.m_params = new float[m_stepcount + 1];
ss.m_precomps = new float[m_stepcount + 1];
for(int i = 1; i < m_stepcount + 1; ++i)
{
prev = GetPosition(ss, param);
param += m_precompdiv;
next = GetPosition(ss, param);
length += (next - prev).magnitude;
ss.m_precomps[i] = length / seglen;
ss.m_params[i] = param;
}
ss.m_params[0] = 0;
ss.m_params[m_stepcount] = 1;
ss.m_precomps[0] = 0;
ss.m_precomps[m_stepcount] = 1;
m_precompdiv = 1 / (float)m_stepcount;
}
break;
}
}
