public FMotionStreakElement(Vector2 position, FMotionStreakElement previousElement)
: base()
{
centerVertice=position;
previous=previousElement;
if (previousElement!=null) {
Vector2 diff=centerVertice-previousElement.centerVertice;
float dist = (float)Math.Sqrt(Vector2.SqrMagnitude(diff));
if (dist>0.01f) {
Vector2 normalizedDiff=diff.normalized;
direction=new Vector2(-normalizedDiff.y,normalizedDiff.x);
valid=true;
ChangeWidth(1.0f);
} else {
if (previousElement.valid) {
direction=previousElement.direction;
valid=true;
ChangeWidth(1.0f);
} else {
valid=false;
width=0;
}
}
} else {
valid=false;
width=0;
}
}
protected override FMotionStreakElement NewElement(Vector2 localPosition, FMotionStreakElement previous)
{
return new FMotionStreakWithBorderElement(localPosition,previous);
}
public override void Setup()
{
_trailElements = new FMotionStreakElement[_maxTrailQuads+1];
_trailStartsIndex=0;
_trailEndsIndex=-1;
_trailElementsCount=0;
_areLocalVerticesDirty = true;
if(_numberOfFacetsNeeded != _maxTrailQuads*3)
{
_numberOfFacetsNeeded = _maxTrailQuads*3;
if(_isOnStage) _stage.HandleFacetsChanged();
}
}
//public FMotionStreakElement previous;
public FMotionStreakWithBorderElement(Vector2 position, FMotionStreakElement previousElement)
: base(position,previousElement)
{
}
protected virtual FMotionStreakElement NewElement(Vector2 localPosition, FMotionStreakElement previous)
{
return new FMotionStreakElement(localPosition,previous);
}
public void validWithElement(FMotionStreakElement element)
{
direction=element.direction;
valid=true;
ChangeWidth(1.0f);
}
