File size: 3,016 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 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 | using System;
namespace Unity.VisualScripting
{
public abstract class StateTransition : GraphElement<StateGraph>, IStateTransition
{
public class DebugData : IStateTransitionDebugData
{
public Exception runtimeException { get; set; }
public int lastBranchFrame { get; set; }
public float lastBranchTime { get; set; }
}
protected StateTransition() { }
protected StateTransition(IState source, IState destination)
{
Ensure.That(nameof(source)).IsNotNull(source);
Ensure.That(nameof(destination)).IsNotNull(destination);
if (source.graph != destination.graph)
{
throw new NotSupportedException("Cannot create transitions across state graphs.");
}
this.source = source;
this.destination = destination;
}
public IGraphElementDebugData CreateDebugData()
{
return new DebugData();
}
public override int dependencyOrder => 1;
[Serialize]
public IState source { get; internal set; }
[Serialize]
public IState destination { get; internal set; }
public override void Instantiate(GraphReference instance)
{
base.Instantiate(instance);
if (this is IGraphEventListener listener && instance.GetElementData<State.Data>(source).isActive)
{
listener.StartListening(instance);
}
}
public override void Uninstantiate(GraphReference instance)
{
if (this is IGraphEventListener listener)
{
listener.StopListening(instance);
}
base.Uninstantiate(instance);
}
#region Lifecycle
public void Branch(Flow flow)
{
if (flow.enableDebug)
{
var editorData = flow.stack.GetElementDebugData<DebugData>(this);
editorData.lastBranchFrame = EditorTimeBinding.frame;
editorData.lastBranchTime = EditorTimeBinding.time;
}
try
{
source.OnExit(flow, StateExitReason.Branch);
}
catch (Exception ex)
{
source.HandleException(flow.stack, ex);
throw;
}
source.OnBranchTo(flow, destination);
try
{
destination.OnEnter(flow, StateEnterReason.Branch);
}
catch (Exception ex)
{
destination.HandleException(flow.stack, ex);
throw;
}
}
public abstract void OnEnter(Flow flow);
public abstract void OnExit(Flow flow);
#endregion
#region Analytics
public override AnalyticsIdentifier GetAnalyticsIdentifier()
{
return null;
}
#endregion
}
}
|