public List <AttributePoint> GetAttributePoints(List <Point> movementPoints, Fixture fixture)
{
// Make a new list of attribute points, one per movement point
List <AttributePoint> attrPoints = new List <AttributePoint>();
foreach (Point pt in movementPoints)
{
attrPoints.Add(new AttributePoint(new Point(pt.X, pt.Y), fixture));
}
// Assign each attribute point to its closest movement point
foreach (AttributePoint attrPt in _attributePoints)
{
int closestMovementPointIndex = Utilities.GetClosestPointIndexInList(attrPt.Point, movementPoints);
attrPoints[closestMovementPointIndex] = attrPt;
}
// If there isn't a key attribute point assigned to the first movement point, we don't
// know what value each fixture attribute should start at. So, we ask each fixture
// attribute what its current DMX value is
foreach (AttributePointSetting setting in attrPoints[0].AttributePointSettings)
{
if (!setting.Active)
{
// If the setting isn't active, get the fixture attribute's current value
setting.Value = setting.Attribute.GetLevel();
}
}
// Now fill in the intermediate values for the movement points that
// don't have a corresponding attribute point.
// First, we keep track of the last key point for each attribute, currently 0
Dictionary <string, int> lastKeyPointForAttribute = new Dictionary <string, int>();
foreach (FixtureAttribute attr in fixture.Attributes)
{
lastKeyPointForAttribute[attr.Name] = 0;
}
// Next, step through the attribute points; whenever we hit a "key" point
// (that is, a point that has an active setting), if we were supposed to
// fade to that value, go back and fill in the intermediate values
for (int i = 0; i < attrPoints.Count; i++)
{
AttributePoint attrPoint = attrPoints[i];
foreach (AttributePointSetting setting in attrPoint.AttributePointSettings)
{
if (setting.Active)
{
if (!setting.Snap)
{
// If we aren't supposed to snap to this value, that means
// we were supposed to have been fading to it. So we have
// to go back and fill in the intermediate values between
// this AttributePoint and this attribute's last key point.
int lastKeyPointIndex = lastKeyPointForAttribute[setting.AttributeName];
int startVal = attrPoints[lastKeyPointIndex].GetSettingForAttributeName(setting.AttributeName).Value;
int endVal = setting.Value;
int incrementPerIntermediatePoint = (endVal - startVal) / (i - lastKeyPointIndex);
for (int j = lastKeyPointIndex + 1; j < i; j++)
{
AttributePointSetting intermediateSetting = attrPoints[j].GetSettingForAttributeName(setting.AttributeName);
intermediateSetting.Value = startVal + incrementPerIntermediatePoint * (j - lastKeyPointIndex);
intermediateSetting.Active = true;
}
}
// Since the setting is active, this is this attribute's
// most recent "key" attributePoint
lastKeyPointForAttribute[setting.AttributeName] = i;
}
else
{
// Since this is not a "key" point for this attribute, copy
// in the value from the last key point. It might turn out that
// we're supposed to be fading to the next key point here, but
// if this turns out to be the case, we'll come back and
// correct this point when we get the next key point
AttributePoint lastKeyPoint = attrPoints[lastKeyPointForAttribute[setting.AttributeName]];
setting.Value = lastKeyPoint.GetSettingForAttributeName(setting.AttributeName).Value;
}
}
}
return(attrPoints);
}
