Godot C#中如何同时使用接口与[Signal]特性？

我不确定这是不是Godot的限制——我正尝试在C#文件里声明事件。在Godot中，给委托声明加上[Signal]特性后，引擎会自动生成对应的事件，这时可以用Godot的connect机制替代标准的EventName += Method;语法。但问题是，这个特性只有在Godot节点体系的public partial类里声明[Signal] delegate...时才生效，这样一来接口就没法包含这些事件声明了。想问问这种场景下有没有办法同时用接口和[Signal]特性？

代码示例 #

生命组件代码 #

using Godot;

namespace Game.Component {
  public delegate void CurrentLifeChangedEventHandler(GodotObject sender, int amount); 
  public delegate void MaximumLifeChangedEventHandler(GodotObject sender, int amount); 
  public delegate void ExtraLifeChangedEventHandler(GodotObject sender, int amount); 
  public delegate void CurrentLifeReachedZeroEventHandler(GodotObject sender); 
  public delegate void MaximumLifeReachedZeroEventHandler(GodotObject sender); 
  public delegate void ExtraLifeReachedZeroEventHandler(GodotObject sender); 
  
  public interface ILifeComponent {
    event CurrentLifeChangedEventHandler CurrentLifeChanged; 
    event MaximumLifeChangedEventHandler MaximumLifeChanged; 
    event ExtraLifeChangedEventHandler ExtraLifeChanged; 
    event CurrentLifeReachedZeroEventHandler CurrentLifeReachedZero; 
    event MaximumLifeReachedZeroEventHandler MaximumLifeReachedZero; 
    event ExtraLifeReachedZeroEventHandler ExtraLifeReachedZero; 

    void InitializeHealth();
    void IncreaseMaximumLife(int amount);
    void IncreaseExtraLife(int amount);
    void TakeDamage(IDamage damage);  
    void HealLife(IHeal heal);
  }

  public partial class LifeComponent : Node, ILifeComponent{
    public event CurrentLifeChangedEventHandler CurrentLifeChanged; 
    public event MaximumLifeChangedEventHandler MaximumLifeChanged; 
    public event ExtraLifeChangedEventHandler ExtraLifeChanged; 
    public event CurrentLifeReachedZeroEventHandler CurrentLifeReachedZero; 
    public event MaximumLifeReachedZeroEventHandler MaximumLifeReachedZero; 
    public event ExtraLifeReachedZeroEventHandler ExtraLifeReachedZero; 
}

抗性弱点组件代码 #

using Godot;
using Godot.Collections;

namespace Game.Component {

  public partial class ResistanceVulnerabilityComponent : Node, IResistanceVulnerabilityComponent {
    [Signal] public delegate void GainedResistanceEventHandler();
    [Signal] public delegate void GainedVulnerabilityEventHandler();
    [Signal] public delegate void LostResistanceEventHandler();
    [Signal] public delegate void LostVulnerabilityEventHandler();
}

补充说明 #

• 【使用C#事件】截图
• 【使用Godot信号】截图

另外，我觉得Godot节点必须使用public partial class的设定有些奇怪。

内容的提问来源于stack exchange，提问作者Gustavo Henrique