public virtual CCActionInterval reverse()
{
CCPointArray copyConfig = (CCPointArray)m_pPoints.copy();
//
// convert "absolutes" to "diffs"
//
CCPoint p = copyConfig.getControlPointAtIndex(0);
for (int i = 1; i < copyConfig.count(); ++i)
{
CCPoint current = copyConfig.getControlPointAtIndex(i);
CCPoint diff = current.Sub(p);
copyConfig.replaceControlPoint(diff, i);
p = current;
}
// convert to "diffs" to "reverse absolute"
CCPointArray pReverse = copyConfig.reverse();
// 1st element (which should be 0,0) should be here too
p = pReverse.getControlPointAtIndex(pReverse.count() - 1);
pReverse.removeControlPointAtIndex(pReverse.count() - 1);
p = p.Neg();
pReverse.insertControlPoint(p, 0);
for (int i = 1; i < pReverse.count(); ++i)
{
CCPoint current = pReverse.getControlPointAtIndex(i);
current = current.Neg();
CCPoint abs = current.Add(p);
pReverse.replaceControlPoint(abs, i);
p = abs;
}
return(CCCardinalSplineBy.create(m_fDuration, pReverse, m_fTension));
}
/** initializes the action with a duration and an array of points */
public virtual bool initWithDuration(float duration, CCPointArray points, float tension)
{
if (points == null || points.count() == 0)
{
return(false);
}
if (base.initWithDuration(duration))
{
setPoints(points);
m_fTension = tension;
return(true);
}
return(false);
}
