77 lines
2.2 KiB
C#
77 lines
2.2 KiB
C#
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namespace Unity.VisualScripting
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{
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[TypeIcon(typeof(StateGraph))]
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[UnitCategory("Nesting")]
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public sealed class StateUnit : NesterUnit<StateGraph, StateGraphAsset>
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{
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public StateUnit() : base() { }
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public StateUnit(StateGraphAsset macro) : base(macro) { }
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/// <summary>
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/// The entry point to start the state graph.
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/// </summary>
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[DoNotSerialize]
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public ControlInput start { get; private set; }
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/// <summary>
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/// The entry point to stop the state graph.
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/// </summary>
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[DoNotSerialize]
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public ControlInput stop { get; private set; }
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/// <summary>
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/// The action to execute after the state graph has been started.
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/// </summary>
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[DoNotSerialize]
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public ControlOutput started { get; private set; }
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/// <summary>
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/// The action to execute after the state graph has been stopped.
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/// </summary>
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[DoNotSerialize]
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public ControlOutput stopped { get; private set; }
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public static StateUnit WithStart()
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{
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var stateUnit = new StateUnit();
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stateUnit.nest.source = GraphSource.Embed;
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stateUnit.nest.embed = StateGraph.WithStart();
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return stateUnit;
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}
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protected override void Definition()
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{
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start = ControlInput(nameof(start), Start);
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stop = ControlInput(nameof(stop), Stop);
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started = ControlOutput(nameof(started));
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stopped = ControlOutput(nameof(stopped));
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Succession(start, started);
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Succession(stop, stopped);
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}
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private ControlOutput Start(Flow flow)
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{
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flow.stack.EnterParentElement(this);
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nest.graph.Start(flow);
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flow.stack.ExitParentElement();
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return started;
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}
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private ControlOutput Stop(Flow flow)
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{
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flow.stack.EnterParentElement(this);
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nest.graph.Stop(flow);
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flow.stack.ExitParentElement();
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return stopped;
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}
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public override StateGraph DefaultGraph()
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{
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return StateGraph.WithStart();
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}
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}
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}
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