|
|
@@ -1,213 +0,0 @@
|
|
|
-
|
|
|
-using System;
|
|
|
-using System.Collections.Generic;
|
|
|
-using System.Dynamic;
|
|
|
-using System.Linq.Expressions;
|
|
|
-using System.Runtime.CompilerServices;
|
|
|
-
|
|
|
-namespace Godot
|
|
|
-{
|
|
|
- /// <summary>
|
|
|
- /// Represents an <see cref="Godot.Object"/> whose members can be dynamically accessed at runtime through the Variant API.
|
|
|
- /// </summary>
|
|
|
- /// <remarks>
|
|
|
- /// <para>
|
|
|
- /// The <see cref="Godot.DynamicGodotObject"/> class enables access to the Variant
|
|
|
- /// members of a <see cref="Godot.Object"/> instance at runtime.
|
|
|
- /// </para>
|
|
|
- /// <para>
|
|
|
- /// This allows accessing the class members using their original names in the engine as well as the members from the
|
|
|
- /// script attached to the <see cref="Godot.Object"/>, regardless of the scripting language it was written in.
|
|
|
- /// </para>
|
|
|
- /// </remarks>
|
|
|
- /// <example>
|
|
|
- /// This sample shows how to use <see cref="Godot.DynamicGodotObject"/> to dynamically access the engine members of a <see cref="Godot.Object"/>.
|
|
|
- /// <code>
|
|
|
- /// dynamic sprite = GetNode("Sprite").DynamicGodotObject;
|
|
|
- /// sprite.add_child(this);
|
|
|
- ///
|
|
|
- /// if ((sprite.hframes * sprite.vframes) > 0)
|
|
|
- /// sprite.frame = 0;
|
|
|
- /// </code>
|
|
|
- /// </example>
|
|
|
- /// <example>
|
|
|
- /// This sample shows how to use <see cref="Godot.DynamicGodotObject"/> to dynamically access the members of the script attached to a <see cref="Godot.Object"/>.
|
|
|
- /// <code>
|
|
|
- /// dynamic childNode = GetNode("ChildNode").DynamicGodotObject;
|
|
|
- ///
|
|
|
- /// if (childNode.print_allowed)
|
|
|
- /// {
|
|
|
- /// childNode.message = "Hello from C#";
|
|
|
- /// childNode.print_message(3);
|
|
|
- /// }
|
|
|
- /// </code>
|
|
|
- /// The <c>ChildNode</c> node has the following GDScript script attached:
|
|
|
- /// <code>
|
|
|
- /// // # ChildNode.gd
|
|
|
- /// // var print_allowed = true
|
|
|
- /// // var message = ""
|
|
|
- /// //
|
|
|
- /// // func print_message(times):
|
|
|
- /// // for i in times:
|
|
|
- /// // print(message)
|
|
|
- /// </code>
|
|
|
- /// </example>
|
|
|
- public class DynamicGodotObject : DynamicObject
|
|
|
- {
|
|
|
- /// <summary>
|
|
|
- /// Gets the <see cref="Godot.Object"/> associated with this <see cref="Godot.DynamicGodotObject"/>.
|
|
|
- /// </summary>
|
|
|
- public Object Value { get; }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// Initializes a new instance of the <see cref="Godot.DynamicGodotObject"/> class.
|
|
|
- /// </summary>
|
|
|
- /// <param name="godotObject">
|
|
|
- /// The <see cref="Godot.Object"/> that will be associated with this <see cref="Godot.DynamicGodotObject"/>.
|
|
|
- /// </param>
|
|
|
- /// <exception cref="System.ArgumentNullException">
|
|
|
- /// Thrown when the <paramref name="godotObject"/> parameter is null.
|
|
|
- /// </exception>
|
|
|
- public DynamicGodotObject(Object godotObject)
|
|
|
- {
|
|
|
- if (godotObject == null)
|
|
|
- throw new ArgumentNullException(nameof(godotObject));
|
|
|
-
|
|
|
- this.Value = godotObject;
|
|
|
- }
|
|
|
-
|
|
|
- public override IEnumerable<string> GetDynamicMemberNames()
|
|
|
- {
|
|
|
- return godot_icall_DynamicGodotObject_SetMemberList(Object.GetPtr(Value));
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TryBinaryOperation(BinaryOperationBinder binder, object arg, out object result)
|
|
|
- {
|
|
|
- switch (binder.Operation)
|
|
|
- {
|
|
|
- case ExpressionType.Equal:
|
|
|
- case ExpressionType.NotEqual:
|
|
|
- if (binder.ReturnType == typeof(bool) || binder.ReturnType.IsAssignableFrom(typeof(bool)))
|
|
|
- {
|
|
|
- if (arg == null)
|
|
|
- {
|
|
|
- bool boolResult = Object.IsInstanceValid(Value);
|
|
|
-
|
|
|
- if (binder.Operation == ExpressionType.Equal)
|
|
|
- boolResult = !boolResult;
|
|
|
-
|
|
|
- result = boolResult;
|
|
|
- return true;
|
|
|
- }
|
|
|
-
|
|
|
- if (arg is Object other)
|
|
|
- {
|
|
|
- bool boolResult = (Value == other);
|
|
|
-
|
|
|
- if (binder.Operation == ExpressionType.NotEqual)
|
|
|
- boolResult = !boolResult;
|
|
|
-
|
|
|
- result = boolResult;
|
|
|
- return true;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- break;
|
|
|
- default:
|
|
|
- // We're not implementing operators <, <=, >, and >= (LessThan, LessThanOrEqual, GreaterThan, GreaterThanOrEqual).
|
|
|
- // These are used on the actual pointers in variant_op.cpp. It's better to let the user do that explicitly.
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- return base.TryBinaryOperation(binder, arg, out result);
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TryConvert(ConvertBinder binder, out object result)
|
|
|
- {
|
|
|
- if (binder.Type == typeof(Object))
|
|
|
- {
|
|
|
- result = Value;
|
|
|
- return true;
|
|
|
- }
|
|
|
-
|
|
|
- if (typeof(Object).IsAssignableFrom(binder.Type))
|
|
|
- {
|
|
|
- // Throws InvalidCastException when the cast fails
|
|
|
- result = Convert.ChangeType(Value, binder.Type);
|
|
|
- return true;
|
|
|
- }
|
|
|
-
|
|
|
- return base.TryConvert(binder, out result);
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result)
|
|
|
- {
|
|
|
- if (indexes.Length == 1)
|
|
|
- {
|
|
|
- if (indexes[0] is string name)
|
|
|
- {
|
|
|
- return godot_icall_DynamicGodotObject_GetMember(Object.GetPtr(Value), name, out result);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return base.TryGetIndex(binder, indexes, out result);
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TryGetMember(GetMemberBinder binder, out object result)
|
|
|
- {
|
|
|
- return godot_icall_DynamicGodotObject_GetMember(Object.GetPtr(Value), binder.Name, out result);
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
|
|
|
- {
|
|
|
- return godot_icall_DynamicGodotObject_InvokeMember(Object.GetPtr(Value), binder.Name, args, out result);
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TrySetIndex(SetIndexBinder binder, object[] indexes, object value)
|
|
|
- {
|
|
|
- if (indexes.Length == 1)
|
|
|
- {
|
|
|
- if (indexes[0] is string name)
|
|
|
- {
|
|
|
- return godot_icall_DynamicGodotObject_SetMember(Object.GetPtr(Value), name, value);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return base.TrySetIndex(binder, indexes, value);
|
|
|
- }
|
|
|
-
|
|
|
- public override bool TrySetMember(SetMemberBinder binder, object value)
|
|
|
- {
|
|
|
- return godot_icall_DynamicGodotObject_SetMember(Object.GetPtr(Value), binder.Name, value);
|
|
|
- }
|
|
|
-
|
|
|
- [MethodImpl(MethodImplOptions.InternalCall)]
|
|
|
- internal extern static string[] godot_icall_DynamicGodotObject_SetMemberList(IntPtr godotObject);
|
|
|
-
|
|
|
- [MethodImpl(MethodImplOptions.InternalCall)]
|
|
|
- internal extern static bool godot_icall_DynamicGodotObject_InvokeMember(IntPtr godotObject, string name, object[] args, out object result);
|
|
|
-
|
|
|
- [MethodImpl(MethodImplOptions.InternalCall)]
|
|
|
- internal extern static bool godot_icall_DynamicGodotObject_GetMember(IntPtr godotObject, string name, out object result);
|
|
|
-
|
|
|
- [MethodImpl(MethodImplOptions.InternalCall)]
|
|
|
- internal extern static bool godot_icall_DynamicGodotObject_SetMember(IntPtr godotObject, string name, object value);
|
|
|
-
|
|
|
- #region We don't override these methods
|
|
|
-
|
|
|
- // Looks like this is not usable from C#
|
|
|
- //public override bool TryCreateInstance(CreateInstanceBinder binder, object[] args, out object result);
|
|
|
-
|
|
|
- // Object members cannot be deleted
|
|
|
- //public override bool TryDeleteIndex(DeleteIndexBinder binder, object[] indexes);
|
|
|
- //public override bool TryDeleteMember(DeleteMemberBinder binder);
|
|
|
-
|
|
|
- // Invokation on the object itself, e.g.: obj(param)
|
|
|
- //public override bool TryInvoke(InvokeBinder binder, object[] args, out object result);
|
|
|
-
|
|
|
- // No unnary operations to handle
|
|
|
- //public override bool TryUnaryOperation(UnaryOperationBinder binder, out object result);
|
|
|
-
|
|
|
- #endregion
|
|
|
- }
|
|
|
-}
|
Rémi Verschelde