private static bool TryGetStateBranch(UpperString text, out ActorStateBranch branchType)
{
switch (text.String)
{
case "FAIL":
branchType = ActorStateBranch.Fail;
return(true);
case "GOTO":
branchType = ActorStateBranch.Goto;
return(true);
case "LOOP":
branchType = ActorStateBranch.Loop;
return(true);
case "STOP":
branchType = ActorStateBranch.Stop;
return(true);
case "WAIT":
branchType = ActorStateBranch.Wait;
return(true);
}
branchType = ActorStateBranch.None;
return(false);
}
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 ActorFlowControl(ActorStateBranch branchType, UpperString label)
{
Debug.Assert(branchType == ActorStateBranch.Loop, $"Using wrong branch type constructor ({branchType} should be only Loop)");
FlowType = branchType;
Label = label;
}
public ActorFlowControl(ActorStateBranch branchType, Optional <UpperString> parent,
Optional <UpperString> label, int offset)
{
FlowType = branchType;
Label = label;
Parent = parent;
Offset = offset;
}
public ActorFlowControl(ActorStateBranch branchType)
{
Debug.Assert(branchType != ActorStateBranch.Goto && branchType != ActorStateBranch.Loop, $"Using wrong branch type constructor ({branchType} should be not be Goto or Loop)");
FlowType = branchType;
}
