TRAfoer
7a2bc844bd
目前添加了一个能够深度查找和设置反射的helper，但是Tag的系统仍然不完全，另外我觉得console可以重构了 Signed-off-by: TRAfoer <lhf190@outlook.com>
325 lines
11 KiB
C#
325 lines
11 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using UnityEngine;
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public static class ReflectionHelper
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{
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private const BindingFlags Flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
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// --- 设置值 (支持 object) ---
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public static void SetDeepValue(object target, string path, object newValue)
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{
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if (target == null || string.IsNullOrEmpty(path)) return;
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string[] parts = path.Split('.');
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SetDeepValueRecursive(target, parts, 0, newValue);
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}
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private static void SetDeepValueRecursive(object currentObj, string[] pathParts, int index, object newValue)
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{
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string memberName = pathParts[index];
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Type type = currentObj.GetType();
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FieldInfo field = type.GetField(memberName, Flags);
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PropertyInfo prop = type.GetProperty(memberName, Flags);
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if (field == null && prop == null)
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{
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// Debug.LogWarning($"找不到成员: {memberName}"); // 可选：调试用
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return;
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}
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bool isLast = index == pathParts.Length - 1;
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if (isLast)
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{
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// 到达终点：直接设置值
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// 注意：这里可能需要处理类型转换，取决于你的 newValue 类型是否严格匹配
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try
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{
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if (field != null) field.SetValue(currentObj, newValue);
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else if (prop != null && prop.CanWrite) prop.SetValue(currentObj, newValue);
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}
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catch (Exception e) { Debug.LogError($"设置值失败 {memberName}: {e.Message}"); }
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}
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else
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{
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// 中间节点
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object nextObj = field != null ? field.GetValue(currentObj) : prop.GetValue(currentObj);
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if (nextObj == null) return;
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SetDeepValueRecursive(nextObj, pathParts, index + 1, newValue);
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// Struct 回写逻辑 (关键)
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if (nextObj.GetType().IsValueType)
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{
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if (field != null) field.SetValue(currentObj, nextObj);
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else if (prop != null && prop.CanWrite) prop.SetValue(currentObj, nextObj);
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}
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}
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}
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// --- 获取值 (支持 object) ---
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public static object GetDeepValue(object target, string path)
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{
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object current = target;
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foreach (string part in path.Split('.'))
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{
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if (current == null) return null;
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Type type = current.GetType();
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FieldInfo field = type.GetField(part, Flags);
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if (field != null)
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{
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current = field.GetValue(current);
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continue;
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}
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PropertyInfo prop = type.GetProperty(part, Flags);
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if (prop != null)
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{
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current = prop.GetValue(current);
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continue;
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}
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return null; // 路径中断
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}
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return current;
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}
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/// <summary>
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/// 遍历对象的所有字段和属性（递归地），查找值与目标值匹配的参数路径。
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/// </summary>
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/// <param name="target">要搜索的对象实例。</param>
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/// <param name="targetValue">要匹配的目标值。</param>
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/// <param name="maxDepth">递归搜索的最大深度，防止无限循环。</param>
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/// <returns>返回匹配参数的完整路径列表 (例如: "position.x")。</returns>
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public static List<string> FindParametersByValue(object target, object targetValue, int maxDepth = 10)
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{
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if (target == null || targetValue == null) return new List<string>();
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// 用于存储找到的路径
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var results = new List<string>();
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// 用于防止循环引用（比如类 A 内部引用了类 B，类 B 内部又引用了类 A）
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var visited = new HashSet<object>();
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// 启动递归搜索
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FindRecursive(target, targetValue, "", 0, results, visited, maxDepth);
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return results;
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}
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private static void FindRecursive(
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object currentObject,
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object targetValue,
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string currentPath,
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int depth,
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List<string> results,
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HashSet<object> visited,
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int maxDepth)
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{
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if (currentObject == null || depth >= maxDepth) return;
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// 避免无限循环和重复搜索
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// 对于值类型 (Struct) 不需要加入 visited，因为它们是副本
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if (!currentObject.GetType().IsValueType)
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{
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// 如果对象已经被搜索过，则跳过
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if (visited.Contains(currentObject)) return;
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visited.Add(currentObject);
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}
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Type currentType = currentObject.GetType();
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// 1. 遍历 Field 字段
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foreach (var field in currentType.GetFields(Flags))
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{
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// 跳过内部字段，如编译器生成的 backing fields
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if (field.IsDefined(typeof(System.Runtime.CompilerServices.CompilerGeneratedAttribute), false)) continue;
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object value = field.GetValue(currentObject);
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string newPath = string.IsNullOrEmpty(currentPath) ? field.Name : $"{currentPath}.{field.Name}";
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CheckAndRecurse(field.FieldType, value, targetValue, newPath, depth, results, visited, maxDepth);
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}
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// 2. 遍历 Property 属性
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foreach (var prop in currentType.GetProperties(Flags).Where(p => p.CanRead))
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{
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// 跳过索引器
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if (prop.GetIndexParameters().Length > 0) continue;
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object value = prop.GetValue(currentObject);
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string newPath = string.IsNullOrEmpty(currentPath) ? prop.Name : $"{currentPath}.{prop.Name}";
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CheckAndRecurse(prop.PropertyType, value, targetValue, newPath, depth, results, visited, maxDepth);
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}
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}
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/// <summary>
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/// 检查当前值是否匹配，如果不是基础类型则继续递归
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/// </summary>
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private static void CheckAndRecurse(
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Type valueType,
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object value,
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object targetValue,
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string newPath,
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int depth,
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List<string> results,
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HashSet<object> visited,
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int maxDepth)
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{
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if (value == null) return;
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// 【值匹配检查】
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if (value.Equals(targetValue))
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{
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results.Add(newPath);
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return;
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}
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// 【递归检查】
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// 只有当值是一个复杂类型（Class 或 Struct）时才需要递归
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// 排除字符串和集合（List, Array等，如果你需要搜索集合内部，逻辑会更复杂）
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if (valueType.IsClass || valueType.IsValueType && !valueType.IsPrimitive)
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{
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// 排除 String (虽然是 Class，但我们视其为基础值)
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if (valueType == typeof(string)) return;
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// 排除集合（如果需要支持 List<T> 的内部搜索，你需要在这里添加处理逻辑）
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if (valueType.IsArray || valueType.IsGenericType && valueType.GetInterfaces().Any(i => i == typeof(System.Collections.IEnumerable))) return;
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// 递归进入下一层
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FindRecursive(value, targetValue, newPath, depth + 1, results, visited, maxDepth);
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}
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}
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}
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public class FastReflection
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{
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// 定义一个节点，用来缓存每一层的 Field 或 Property 信息
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private class MemberNode
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{
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public FieldInfo Field;
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public PropertyInfo Property;
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public bool IsField => Field != null;
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public MemberNode(MemberInfo info)
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{
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if (info is FieldInfo f) Field = f;
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else if (info is PropertyInfo p) Property = p;
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}
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// 快速获取值
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public object GetValue(object target)
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{
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return IsField ? Field.GetValue(target) : Property.GetValue(target);
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}
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// 快速设置值
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public void SetValue(object target, object value)
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{
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if (IsField) Field.SetValue(target, value);
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else if (Property != null && Property.CanWrite) Property.SetValue(target, value);
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}
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// 判断这一层是否是 Struct (值类型)，如果是，修改后需要回写
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public bool IsStructType()
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{
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return IsField ? Field.FieldType.IsValueType : Property.PropertyType.IsValueType;
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}
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}
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// 访问器链条
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private readonly List<MemberNode> _nodes = new List<MemberNode>();
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private bool _isValid = false;
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/// <summary>
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/// 构造函数：初始化时进行昂贵的解析操作（只做一次）
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/// </summary>
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public FastReflection(object rootTarget, string path)
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{
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if (rootTarget == null || string.IsNullOrEmpty(path)) return;
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Type currentType = rootTarget.GetType();
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string[] parts = path.Split('.');
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BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
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foreach (var part in parts)
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{
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// 查找字段或属性
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FieldInfo field = currentType.GetField(part, flags);
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PropertyInfo prop = currentType.GetProperty(part, flags);
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if (field == null && prop == null)
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{
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Debug.LogError($"[FastReflection] 路径中断: 找不到成员 '{part}' 在类型 '{currentType.Name}' 中");
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return;
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}
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// 创建节点并添加到链条
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MemberNode node = new MemberNode(field ?? (MemberInfo)prop);
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_nodes.Add(node);
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// 更新 currentType 为下一层的类型
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currentType = field != null ? field.FieldType : prop.PropertyType;
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}
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_isValid = true;
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}
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/// <summary>
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/// 获取值（运行时极快）
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/// </summary>
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public float GetValue(object rootTarget)
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{
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if (!_isValid) return 0f;
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object current = rootTarget;
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for (int i = 0; i < _nodes.Count; i++)
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{
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current = _nodes[i].GetValue(current);
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if (current == null) return 0f;
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}
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return (float)current; // 假设最后一定是 float
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}
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/// <summary>
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/// 设置值（运行时极快，自动处理 Struct 回写）
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/// </summary>
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public void SetValue(object rootTarget, float newValue)
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{
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if (!_isValid) return;
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// 开始递归处理回写
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SetRecursive(rootTarget, 0, newValue);
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}
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// 递归函数：处理“获取-修改-回写”逻辑
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private void SetRecursive(object currentObj, int index, float finalValue)
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{
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MemberNode node = _nodes[index];
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// 1. 如果是链条的最后一个节点（即那个 float 变量）
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if (index == _nodes.Count - 1)
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{
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node.SetValue(currentObj, finalValue);
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return;
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}
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// 2. 如果是中间节点，先获取下一层对象
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object nextObj = node.GetValue(currentObj);
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if (nextObj == null) return;
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// 3. 递归进入下一层
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SetRecursive(nextObj, index + 1, finalValue);
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// 4. 【关键】回写阶段
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// 如果 nextObj 是 Struct（值类型），比如 Vector3，
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// 我们刚才在递归里修改了 nextObj 的副本，现在必须把它赋值回 currentObj
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if (node.IsStructType())
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{
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node.SetValue(currentObj, nextObj);
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}
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}
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} |