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@@ -0,0 +1,133 @@
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+using System;
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+using System.Collections.Generic;
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+using System.Reflection;
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+using UnityEngine;
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+
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+namespace Model
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+{
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+ [EntityEvent(EntityEventId.BehaviorTreeComponent)]
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+ public class BehaviorTreeComponent : Component
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+ {
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+ private Dictionary<string, Func<NodeProto, Node>> dictionary;
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+ private Dictionary<GameObject, BehaviorTree> treeCache;
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+
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+ public void Awake()
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+ {
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+ this.Load();
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+ }
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+
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+ public void Load()
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+ {
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+ this.dictionary = new Dictionary<string, Func<NodeProto, Node>>();
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+ this.treeCache = new Dictionary<GameObject, BehaviorTree>();
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+
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+
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+ Type[] types = DllHelper.GetMonoTypes();
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+ foreach (Type type in types)
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+ {
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+ object[] attrs = type.GetCustomAttributes(typeof(NodeAttribute), false);
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+ if (attrs.Length == 0)
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+ {
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+ continue;
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+ }
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+
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+ Type classType = type;
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+ if (this.dictionary.ContainsKey(type.Name))
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+ {
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+ throw new Exception($"已经存在同类节点: {classType.Name}");
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+ }
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+ this.dictionary.Add(type.Name, config =>
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+ {
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+ Node node = (Node)Activator.CreateInstance(classType, config);
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+ try
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+ {
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+ InitFieldValue(ref node, config);
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+ }
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+ catch (Exception e)
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+ {
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+ throw new Exception($"InitFieldValue error, node: {node.Id} {node.Type}", e);
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+ }
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+ return node;
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+ });
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+ }
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+
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+ }
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+
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+ private static void InitFieldValue(ref Node node, NodeProto nodeProto)
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+ {
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+ Type type = typeof(Game).Assembly.GetType("Model." + nodeProto.Name);
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+
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+ foreach (var args_item in nodeProto.Args.Dict())
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+ {
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+ FieldInfo fieldInfo = type.GetField(args_item.Key, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
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+ if (fieldInfo == null)
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+ {
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+ continue;
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+ }
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+ NewSetValue(ref node, fieldInfo, args_item.Value);
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+ }
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+ }
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+
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+ private static void NewSetValue(ref Node node, FieldInfo field, object value)
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+ {
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+ // unity enum无法序列化，保存的string形式
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+ if (field.FieldType.IsEnum)
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+ {
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+ value = Enum.Parse(field.FieldType, (string) value);
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+ }
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+ field.SetValue(node, value);
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+ }
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+
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+ private Node CreateOneNode(NodeProto proto)
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+ {
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+ if (!this.dictionary.ContainsKey(proto.Name))
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+ {
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+ throw new KeyNotFoundException($"NodeType没有定义该节点: {proto.Name}");
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+ }
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+ return this.dictionary[proto.Name](proto);
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+ }
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+
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+ private Node CreateTreeNode(NodeProto proto)
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+ {
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+ Node node = this.CreateOneNode(proto);
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+ node.EndInit(this.GetOwner<Scene>());
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+
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+ if (proto.Children == null)
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+ {
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+ return node;
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+ }
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+
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+ foreach (NodeProto nodeProto in proto.Children)
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+ {
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+ Node childNode = this.CreateTreeNode(nodeProto);
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+ node.AddChild(childNode);
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+ }
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+ return node;
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+ }
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+
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+ public BehaviorTree CreateTree(Scene scene, GameObject treeGo)
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+ {
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+ try
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+ {
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+ BehaviorTree tree;
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+ if (this.treeCache.TryGetValue(treeGo, out tree))
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+ {
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+ return tree;
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+ }
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+
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+ BehaviorTreeConfig behaviorTreeConfig = treeGo.GetComponent<BehaviorTreeConfig>();
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+ Node node = this.CreateTreeNode(behaviorTreeConfig.RootNodeProto);
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+ tree = new BehaviorTree(scene, node);
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+ if (Define.LoadResourceType == LoadResourceType.Async)
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+ {
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+ this.treeCache.Add(treeGo, tree);
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+ }
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+ return tree;
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+ }
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+ catch (Exception e)
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+ {
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+ throw new Exception($"行为树配置错误: {treeGo.name}", e);
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+ }
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+ }
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+ }
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+}
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tanghai