private void computeLifetime(SaitenPath path)
{
var firstFrameInPath = frames[path].FirstOrDefault();
var lastFrameInPath = frames[path].LastOrDefault();
if (firstFrameInPath == null || lastFrameInPath == null)
{
return;
}
var startTime = GetTime(firstFrameInPath);
var endTime = GetTime(lastFrameInPath);
float originAdjustment = 0.0f;
switch (direction.Value)
{
case ScrollingDirection.Left:
originAdjustment = path.OriginPosition.X;
break;
case ScrollingDirection.Right:
originAdjustment = path.DrawWidth - path.OriginPosition.X;
break;
}
path.LifetimeStart = scrollingInfo.Algorithm.GetDisplayStartTime(startTime, originAdjustment, timeRange.Value, scrollLength);
path.LifetimeEnd = scrollingInfo.Algorithm.TimeAt(scrollLength * safe_lifetime_end_multiplier, endTime, timeRange.Value, scrollLength);
}
protected void CreateNew(T point)
{
var path = new SaitenPath
{
PathRadius = PathRadius,
};
frames.Add(path, new List <T> {
point
});
pathInitialStateCache.Add(path, new Cached());
AddInternal(path);
}
private void updatePosition(SaitenPath path, double currentTime)
{
var firstFrameInPath = frames[path].FirstOrDefault();
if (firstFrameInPath == null)
{
return;
}
var startTime = GetTime(firstFrameInPath);
var multiple = direction.Value == ScrollingDirection.Left ? 1 : -1;
var x = scrollingInfo.Algorithm.PositionAt(startTime, currentTime, timeRange.Value, scrollLength);
path.X = (x + Offset) * multiple;
}
// Cant use AddOnce() since the delegate is re-constructed every invocation
private void computePath(SaitenPath path) => path.Schedule(() =>
{
var firstFrameInPath = frames[path].FirstOrDefault();
if (firstFrameInPath == null)
{
return;
}
var startTime = GetTime(firstFrameInPath);
if (pathInitialStateCache[path].IsValid)
{
return;
}
pathInitialStateCache?[path].Validate();
// Calculate path
var frameList = frames[path];
if (frameList.Count <= 1)
{
return;
}
path.ClearVertices();
bool left = direction.Value == ScrollingDirection.Left;
path.Anchor = path.Origin = left ? Anchor.TopLeft : Anchor.TopRight;
var centerPosition = calculator.CenterPosition();
var scaleDistance = calculator.Distance();
foreach (var frame in frameList)
{
var x = scrollingInfo.Algorithm.GetLength(startTime, GetTime(frame), timeRange.Value, scrollLength);
path.AddVertex(new Vector2(left ? x : -x, GetPosition(frame) * scaleDistance - centerPosition));
}
});
protected void MarkAsInvalid(SaitenPath path) => pathInitialStateCache[path].Invalidate();
