From 41e3814de831a9dc39dc759b6b1491c29a6511da Mon Sep 17 00:00:00 2001
From: William Barbosa <heytherewill@gmail.com>
Date: Fri, 19 Jan 2024 18:17:46 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=96=A5=EF=B8=8F=20Render=20editor=20field?=
 =?UTF-8?q?s?=
MIME-Version: 1.0
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---
 .../ImmutableArrayConstraintField.cs          | 31 +++++++++++++++++++
 src/Murder.Editor/Utilities/Gui/SearchBox.cs  | 15 +++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 src/Murder.Editor/CustomFields/ImmutableArrayConstraintField.cs

diff --git a/src/Murder.Editor/CustomFields/ImmutableArrayConstraintField.cs b/src/Murder.Editor/CustomFields/ImmutableArrayConstraintField.cs
new file mode 100644
index 000000000..67c0ab75b
--- /dev/null
+++ b/src/Murder.Editor/CustomFields/ImmutableArrayConstraintField.cs
@@ -0,0 +1,31 @@
+using System.Collections.Immutable;
+using ImGuiNET;
+using Murder.Core.Ui;
+using Murder.Editor.ImGuiExtended;
+using Murder.Editor.Reflection;
+
+namespace Murder.Editor.CustomFields;
+
+[CustomFieldOf(typeof(ImmutableArray<IConstraint>))]
+internal class ConstraintArrayField : ImmutableArrayField<IConstraint>
+{
+    protected override bool Add(in EditorMember member, out IConstraint? element)
+    {
+        element = null;
+        ImGui.PushID($"Add ${member.Member.ReflectedType}");
+
+        var result = false;
+        if (SearchBox.SearchConstraints() is { } constraintType)
+        {
+            if (Activator.CreateInstance(constraintType) is IConstraint constraint)
+            {
+                element = constraint;
+                result = true;
+            }
+        }
+
+        ImGui.PopID();
+        
+        return result;
+    }
+}
\ No newline at end of file
diff --git a/src/Murder.Editor/Utilities/Gui/SearchBox.cs b/src/Murder.Editor/Utilities/Gui/SearchBox.cs
index fce3138c2..242d8bf31 100644
--- a/src/Murder.Editor/Utilities/Gui/SearchBox.cs
+++ b/src/Murder.Editor/Utilities/Gui/SearchBox.cs
@@ -6,6 +6,7 @@
 using Murder.Core.Dialogs;
 using Murder.Core.Geometry;
 using Murder.Core.Sounds;
+using Murder.Core.Ui;
 using Murder.Editor.Utilities;
 using Murder.Prefabs;
 using Murder.Utilities;
@@ -604,5 +605,19 @@ public static bool Search<T>(
 
             return modified;
         }
+
+
+        public static Type? SearchConstraints()
+        {
+            string selected = "Select a constraint";
+
+            // Find all non-repeating components
+            IEnumerable<Type> types = ReflectionHelper.SafeGetAllTypesInAllAssemblies()
+                .Where(p => !p.IsInterface && typeof(IConstraint).IsAssignableFrom(p));
+
+            Lazy<Dictionary<string, Type>> candidates = new(CollectionHelper.ToStringDictionary(types, t => t.Name, t => t));
+
+            return Search(id: "constraint_search", hasInitialValue: false, selected, values: candidates, SearchBoxFlags.None, out Type? chosen) ? chosen : default;
+        }
     }
 }
\ No newline at end of file