wehub-resource-sync
75 lines
2.3 KiB
C#
75 lines
2.3 KiB
C#
namespace Lib.flow;
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[Guid("38b85057-fbcb-4ab1-9b40-cfb090750150")]
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internal sealed class ResetSubtreeTrigger : Instance<ResetSubtreeTrigger>
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{
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[Output(Guid = "0CF2EF2A-D47A-461A-A7EF-7279C5A17883", DirtyFlagTrigger = DirtyFlagTrigger.Always)]
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public readonly Slot<Command> Output = new();
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public ResetSubtreeTrigger()
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{
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Output.UpdateAction += Update;
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}
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private void Update(EvaluationContext context)
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{
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if (Trigger.GetValue(context))
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{
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DirtyFlag.GlobalInvalidationTick++;
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Invalidate(Command);
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Trigger.TypedInputValue.Value = false;
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Trigger.Value = false;
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}
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Command.GetValue(context);
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}
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private int Invalidate(ISlot slot)
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{
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var slotFlag = slot.DirtyFlag;
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if (slot.TryGetFirstConnection(out var firstConnection))
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{
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// slot is an output of an composition op
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slotFlag.SourceVersion = Invalidate(firstConnection);
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}
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else
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{
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Instance parent = slot.Parent;
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foreach (var input in parent.Inputs)
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{
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var inputFlag = input.DirtyFlag;
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if (input.TryGetFirstConnection(out var inputConnection))
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{
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if (input.IsMultiInput)
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{
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var multiInput = (IMultiInputSlot)input;
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int dirtySum = 0;
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foreach (var entry in multiInput.GetCollectedInputs())
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{
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dirtySum += Invalidate(entry);
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}
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inputFlag.SourceVersion = dirtySum;
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}
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else
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{
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inputFlag.SourceVersion = Invalidate(inputConnection);
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}
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}
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else
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{
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inputFlag.Invalidate();
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}
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}
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slotFlag.Invalidate();
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}
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return slotFlag.SourceVersion;
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}
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[Input(Guid = "7CC4E43B-18A2-4564-A511-05EB0D8EC7D2")]
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public readonly InputSlot<Command> Command = new();
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[Input(Guid = "2975F7BE-F21F-4FF4-B477-8FCC19D5F808")]
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public readonly InputSlot<bool> Trigger = new();
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} |