public CurveKey2D AddKey(float time, Vector2 point)
{
// find insertion point
int pos = Keys.Count;
while (pos > 0 && time < Keys[pos - 1].Time)
{
pos--;
}
// add new key to list
CurveKey2D newKey = new CurveKey2D(time, point);
if (pos == Keys.Count)
{
Keys.Add(newKey);
}
else
{
Keys.Insert(pos, newKey);
}
needsUpdate = true;
return(newKey);
}
//q(t) = 0.5 *( (2 * P1) +
// (-P0 + P2) * t +
// (2*P0 - 5*P1 + 4*P2 - P3) * t2 +
// (-P0 + 3*P1- 3*P2 + P3) * t3)
//q'(t) = 0.5 *( (2 * P1) +
// (-P0 + P2) * t +
// (2*P0 - 5*P1 + 4*P2 - P3) * t2 +
// (-P0 + 3*P1- 3*P2 + P3) * t3)
// http://www.cubic.org/docs/hermite.htm
// http://en.wikipedia.org/wiki/Catmull-Rom_spline#Catmull.E2.80.93Rom_spline
public CurveKey2D AddKey(float time, Vector2 point, float tension)
{
CurveKey2D newKey = AddKey(time, point);
newKey.Tension = tension;
return(newKey);
}
public CurveKey2D AddKey(float time, Vector2 point)
{
// find insertion point
int pos = Keys.Count;
while (pos > 0 && time < Keys[pos - 1].Time)
pos--;
// add new key to list
CurveKey2D newKey = new CurveKey2D(time, point);
if (pos == Keys.Count)
Keys.Add(newKey);
else
Keys.Insert(pos, newKey);
needsUpdate = true;
return newKey;
}
