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feat(signal): 添加信号连接构建器和流畅API扩展
- 实现 SignalBuilder 类用于流畅方式连接 Godot 信号 - 提供 WithFlags 方法设置连接标志 - 提供 To 方法将信号连接到指定处理方法 - 添加 SignalFluentExtensions 扩展方法提供流畅API - 支持通过扩展方法创建信号构建器实例
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GFramework.Godot/extensions/signal/SignalBuilder.cs
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40
GFramework.Godot/extensions/signal/SignalBuilder.cs
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using Godot;
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namespace GFramework.Godot.extensions.signal;
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/// <summary>
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/// 信号连接构建器,用于以流畅的方式连接Godot信号
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/// </summary>
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/// <param name="target">要连接信号的目标节点</param>
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/// <param name="signal">要连接的信号名称</param>
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public sealed class SignalBuilder(Node target, StringName signal)
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{
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private GodotObject.ConnectFlags? _flags;
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/// <summary>
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/// 设置连接标志
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/// </summary>
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/// <param name="flags">连接标志</param>
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/// <returns>当前构建器实例</returns>
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public SignalBuilder WithFlags(GodotObject.ConnectFlags flags)
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{
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_flags = flags;
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return this;
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}
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/// <summary>
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/// 将信号连接到指定的处理方法
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/// </summary>
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/// <param name="callable">信号触发时要调用的处理方法</param>
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public void To(Callable callable)
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{
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// 根据是否设置了标志来决定使用哪种连接方法
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if (_flags is null)
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{
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target.Connect(signal, callable);
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return;
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}
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target.Connect(signal, callable, (uint)_flags);
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}
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}
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20
GFramework.Godot/extensions/signal/SignalFluentExtensions.cs
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GFramework.Godot/extensions/signal/SignalFluentExtensions.cs
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using Godot;
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namespace GFramework.Godot.extensions.signal;
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/// <summary>
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/// 为Godot Node节点提供信号相关的流畅API扩展方法
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/// </summary>
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public static class SignalFluentExtensions
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{
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/// <summary>
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/// 为指定节点创建信号构建器
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/// </summary>
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/// <param name="node">要创建信号的节点</param>
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/// <param name="signal">信号名称</param>
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/// <returns>信号构建器实例</returns>
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public static SignalBuilder Signal(
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this Node node,
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StringName signal)
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=> new(node, signal);
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}
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