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using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Godot;
#if TOOLS
namespace Texty.addons.ClassExporter
{
[Tool]
public class Plugin : EditorPlugin
{
private const string LoadTypesMenuItem = "Load types";
private const string ReloadTypesMenuItem = "Reload types";
private readonly List<TypeEntry> _registeredTypes = new List<TypeEntry>();
public override void _EnterTree()
{
Connect("resource_saved", this, nameof(OnResourceSaved));
AddToolMenuItem(LoadTypesMenuItem, this, nameof(OnReloadTypes), false);
AddToolMenuItem(ReloadTypesMenuItem, this, nameof(OnReloadTypes), true);
RegisterTypes();
}
public override void EnablePlugin()
{
RegisterTypes();
}
public override void DisablePlugin()
{
DeRegisterTypes();
}
public override void _ExitTree()
{
DeRegisterTypes();
RemoveToolMenuItem(LoadTypesMenuItem);
RemoveToolMenuItem(ReloadTypesMenuItem);
Disconnect("resource_saved", this, nameof(OnResourceSaved));
}
// Required by Godot
// ReSharper disable once UnusedParameter.Local
private void OnResourceSaved(Resource resource)
{
RegisterTypes();
}
private void OnReloadTypes(bool reload)
{
if (reload) DeRegisterTypes();
RegisterTypes();
}
private void RegisterTypes()
{
DeRegisterTypes();
var assembly = Assembly.GetExecutingAssembly();
var newTypes = from type in assembly.GetTypes()
where type.IsSubclassOf(typeof(Resource)) || type.IsSubclassOf(typeof(Node))
where !type.IsSubclassOf(typeof(EditorPlugin))
where _registeredTypes.Find(r => r.Equals(type)) == null
select new TypeEntry(type);
foreach (var type in newTypes)
{
GD.Print($"Exporting class {type.Name}");
AddCustomType(type.Name, type.Base, type.Script, null);
_registeredTypes.Add(type);
}
}
private void DeRegisterTypes()
{
foreach (var type in _registeredTypes)
{
GD.Print($"Removing class {type.Name}");
RemoveCustomType(type.Name);
}
_registeredTypes.Clear();
}
private class TypeEntry : Reference, IEquatable<Type>
{
public readonly string Base = "";
public readonly string Name = "";
public readonly Script Script = new CSharpScript();
// Required by Godot
// ReSharper disable once UnusedMember.Local
public TypeEntry()
{
}
public TypeEntry(Type type)
{
Name = type.Name;
Base = type.BaseType?.Name ?? "Object";
Script = LoadScript(type.FullName ?? "");
}
public bool Equals(Type other)
{
return other != null && Name == other.Name && Base == other.BaseType?.Name;
}
private static CSharpScript LoadScript(string fullName)
{
var components = fullName.Split('.');
var path = string.Join("/", components.Skip(1)) + ".cs";
return ResourceLoader.Load<CSharpScript>(path);
}
}
}
}
#endif
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