File size: 2,244 Bytes
18a519f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | namespace Unity.VisualScripting
{
[TypeIcon(typeof(StateGraph))]
[UnitCategory("Nesting")]
public sealed class StateUnit : NesterUnit<StateGraph, StateGraphAsset>
{
public StateUnit() : base() { }
public StateUnit(StateGraphAsset macro) : base(macro) { }
/// <summary>
/// The entry point to start the state graph.
/// </summary>
[DoNotSerialize]
public ControlInput start { get; private set; }
/// <summary>
/// The entry point to stop the state graph.
/// </summary>
[DoNotSerialize]
public ControlInput stop { get; private set; }
/// <summary>
/// The action to execute after the state graph has been started.
/// </summary>
[DoNotSerialize]
public ControlOutput started { get; private set; }
/// <summary>
/// The action to execute after the state graph has been stopped.
/// </summary>
[DoNotSerialize]
public ControlOutput stopped { get; private set; }
public static StateUnit WithStart()
{
var stateUnit = new StateUnit();
stateUnit.nest.source = GraphSource.Embed;
stateUnit.nest.embed = StateGraph.WithStart();
return stateUnit;
}
protected override void Definition()
{
start = ControlInput(nameof(start), Start);
stop = ControlInput(nameof(stop), Stop);
started = ControlOutput(nameof(started));
stopped = ControlOutput(nameof(stopped));
Succession(start, started);
Succession(stop, stopped);
}
private ControlOutput Start(Flow flow)
{
flow.stack.EnterParentElement(this);
nest.graph.Start(flow);
flow.stack.ExitParentElement();
return started;
}
private ControlOutput Stop(Flow flow)
{
flow.stack.EnterParentElement(this);
nest.graph.Stop(flow);
flow.stack.ExitParentElement();
return stopped;
}
public override StateGraph DefaultGraph()
{
return StateGraph.WithStart();
}
}
}
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