private void ResolveFlowOverrides()
{
foreach (var labelFlowPair in flowOverrides)
{
UpperString label = labelFlowPair.Key;
ActorFlowControl flowControl = labelFlowPair.Value;
if (!Labels.Contains(label))
{
Log.Error($"Unable to find label {label} in actor {definition.Name}");
continue;
}
switch (flowControl.FlowType)
{
case ActorStateBranch.Goto:
int newOffset = ResolveOverrideGotoOffset(flowControl) ?? 0;
Labels.Add(label, newOffset);
break;
case ActorStateBranch.Stop:
Labels.Remove(label);
break;
default:
Log.Error($"Cannot apply flow override branch type {flowControl.FlowType} to label {label} in actor {definition.Name}");
break;
}
}
}
private int?ResolveOverrideGotoOffset(ActorFlowControl flowControl)
{
if (!flowControl.Label)
{
return(null);
}
int? index;
UpperString label = flowControl.Label.Value;
if (flowControl.Parent)
{
index = GetSuperOrParent(flowControl.Parent.Value, label);
}
else
{
index = Labels[label];
}
if (index == null)
{
return(null);
}
return(index.Value + flowControl.Offset);
}
private int?LabelToOffset(ActorFrame frame)
{
ActorFlowControl flowControl = frame.FlowControl;
ActorStateBranch type = flowControl.FlowType;
Debug.Assert(type == ActorStateBranch.Goto || type == ActorStateBranch.Loop, "Expected Goto or Loop label here only");
int? index;
UpperString label = flowControl.Label.Value;
if (type == ActorStateBranch.Goto && flowControl.Parent)
{
UpperString parent = flowControl.Parent.Value;
index = GetSuperOrParent(parent, label);
if (index == null)
{
Log.Error($"Unable to find label: {parent}::{label}");
return(null);
}
}
else
{
index = Labels[label];
if (index == null)
{
Log.Error($"Unable to find label: {label}");
return(null);
}
}
// The offset to the label is the delta from our current position,
// plus any extra offset that the flow control will have provided.
return(index.Value - frame.FrameIndex + flowControl.Offset);
}
public ActorFlowControl(ActorFlowControl other)
{
FlowType = other.FlowType;
Label = new Optional <UpperString>(other.Label.Value);
Parent = new Optional <UpperString>(other.Parent.Value);
Offset = other.Offset;
}
public ActorFrame(ActorFrame other)
{
FrameIndex = other.FrameIndex;
Sprite = other.Sprite;
Ticks = other.Ticks;
Properties = new ActorFrameProperties(other.Properties);
ActionFunction = other.ActionFunction.Map(af => new ActorActionFunction(af));
FlowControl = new ActorFlowControl(other.FlowControl);
NextStateOffset = other.NextStateOffset;
}
public ActorFrame(int frameIndex, UpperString sprite, int ticks, ActorFrameProperties properties,
Optional <ActorActionFunction> actionFunction, ActorFlowControl flowControl = null,
int nextStateOffset = OffsetNotSet)
{
FrameIndex = frameIndex;
Sprite = sprite;
Ticks = ticks;
Properties = properties;
ActionFunction = actionFunction;
FlowControl = flowControl ?? new ActorFlowControl();
NextStateOffset = nextStateOffset;
}