public virtual List <IIntentState> Combine(List <IIntentState> states)
{
StateCombinatorValue.Clear();
//TODO consider layers and may not need to iterate all of them. Need them in a sorted order by layer
foreach (var intentState in states)
{
intentState.Dispatch(this);
}
return(StateCombinatorValue);
}
public virtual void Handle(IIntentState <CommandValue> obj)
{
StateCombinatorValue.Add(obj);
}
public virtual void Handle(IIntentState <PositionValue> obj)
{
StateCombinatorValue.Add(obj);
}
public override List <IIntentState> Combine(List <IIntentState> states)
{
//Reset our return type and check to see if we really have anything to combine.
//If we have one or none we can skip all the complex stuff
if (states.Count <= 1)
{
if (states.Count == 1 && states[0].Layer.RequiresMixingPartner)
{
return(EmptyState);
}
return(states);
}
if (states.All(x => x.Layer.RequiresMixingPartner))
{
return(EmptyState);
}
//Reset all our temp variables
StateCombinatorValue.Clear();
_tempMixingColor = null;
_combinedMixingColor = null;
//Order all states in decending order by layer
//We are going to do this without Linq because it is way more memory efficient
states.Sort(LayerComparer);
//Establish the top level layer
var currentLayer = states[0].Layer;
ILayerMixingFilter filter = null;
//Walk through the groups of layers and process them
foreach (var state in states)
{
//Iterate the states in the layer
if (state.Layer.LayerLevel == currentLayer.LayerLevel)
{
//Dispatch each state to the Handle method for its type to combine down to one state
//per layer in a mixing fashion
state.Dispatch(this);
continue;
}
//We have a new layer so we need to wrap up the previous one
MixLayers(filter);
filter = currentLayer.LayerMixingFilter;
state.Dispatch(this);
currentLayer = state.Layer;
}
//Mix the final layer
MixLayers(filter);
//Now we should be down to one mixing type and we can put that in our return obejct as a RGBValue.
//This will convert all mxing types to the simpler more efficient RGBValue
if (_combinedMixingColor != null)
{
_mixedIntentState.SetValue(new RGBValue(_combinedMixingColor.Value));
StateCombinatorValue.Add(_mixedIntentState);
}
//Do the same for the discrete types. Here we should be down to one per color and we return these as Discrete values
//so we can maintatin the source color and an intensity
if (_combinedDiscreteColors?.Count > 0)
{
foreach (var combinedDiscreteColor in _combinedDiscreteColors)
{
StateCombinatorValue.Add(new StaticIntentState <DiscreteValue>(combinedDiscreteColor.Value));
}
_combinedDiscreteColors.Clear();
}
return(StateCombinatorValue);
}