A game about forced loneliness, made by TACStudios
tacstudios.tngl.sh
1namespace Unity.VisualScripting
2{
3 /// <summary>
4 /// Executes an action only once, and a different action afterwards.
5 /// </summary>
6 [UnitCategory("Control")]
7 [UnitOrder(14)]
8 public sealed class Once : Unit, IGraphElementWithData
9 {
10 public sealed class Data : IGraphElementData
11 {
12 public bool executed;
13 }
14
15 /// <summary>
16 /// The entry point for the action.
17 /// </summary>
18 [DoNotSerialize]
19 [PortLabelHidden]
20 public ControlInput enter { get; private set; }
21
22 /// <summary>
23 /// Trigger to reset the once check.
24 /// </summary>
25 [DoNotSerialize]
26 public ControlInput reset { get; private set; }
27
28 /// <summary>
29 /// The action to execute the first time the node is entered.
30 /// </summary>
31 [DoNotSerialize]
32 public ControlOutput once { get; private set; }
33
34 /// <summary>
35 /// The action to execute subsequently.
36 /// </summary>
37 [DoNotSerialize]
38 public ControlOutput after { get; private set; }
39
40 protected override void Definition()
41 {
42 enter = ControlInput(nameof(enter), Enter);
43 reset = ControlInput(nameof(reset), Reset);
44 once = ControlOutput(nameof(once));
45 after = ControlOutput(nameof(after));
46
47 Succession(enter, once);
48 Succession(enter, after);
49 }
50
51 public IGraphElementData CreateData()
52 {
53 return new Data();
54 }
55
56 public ControlOutput Enter(Flow flow)
57 {
58 var data = flow.stack.GetElementData<Data>(this);
59
60 if (!data.executed)
61 {
62 data.executed = true;
63
64 return once;
65 }
66 else
67 {
68 return after;
69 }
70 }
71
72 public ControlOutput Reset(Flow flow)
73 {
74 flow.stack.GetElementData<Data>(this).executed = false;
75
76 return null;
77 }
78 }
79}