private static void InitDict(string path)
{
_rootBehavior = null;
_behaviorDict.Clear();
_connectionDict.Clear();
TextAsset json = Resources.Load <TextAsset>(path);
string content = json.text.Replace("\r", "").Replace("\n", "");
Hashtable table = MiniJsonExtensions.hashtableFromJson(content);
ArrayList nodeList = table["nodes"] as ArrayList;
ArrayList connectionList = table["connections"] as ArrayList;
for (int i = 0; i < nodeList.Count; i++)
{
Hashtable nodeTable = nodeList[i] as Hashtable;
var id = 0;
if (int.TryParse(nodeTable["$id"].ToString(), out id))
{
AbsBehavior absBehavior = CreateBehavior(nodeTable, id);
_behaviorDict[id] = absBehavior;
if (_rootBehavior == null)
{
_rootBehavior = absBehavior;
}
else
{
if (absBehavior.Id < _rootBehavior.Id)
{
_rootBehavior = absBehavior;
}
}
}
else
{
LogHelper.PrintError("[BehaviorTreeFactory]try get node id error!");
}
}
for (int i = 0; i < connectionList.Count; i++)
{
Hashtable connectionTable = connectionList[i] as Hashtable;
int source = 0;
int target = 0;
Hashtable scurceNode = connectionTable["_sourceNode"] as Hashtable;
Hashtable targetNode = connectionTable["_targetNode"] as Hashtable;
if (int.TryParse(scurceNode["$ref"].ToString(), out source) &&
int.TryParse(targetNode["$ref"].ToString(), out target))
{
List <int> list;
if (!_connectionDict.TryGetValue(source, out list))
{
_connectionDict[source] = new List <int>();
list = _connectionDict[source];
}
list.Add(target);
}
else
{
LogHelper.PrintError("[BehaviorTreeFactory]try get source id and target id error!");
}
}
}
protected override void UpdateEx()
{
if (Reslut == BehaviorState.Running)
{
int count = _list.Count;
if (_target == null)
{
int index = Random.Range(0, count);
_target = _list[index];
}
switch (_target.Behave(Entity))
{
case BehaviorState.Running:
case BehaviorState.Finish:
Reslut = BehaviorState.Running;
break;
case BehaviorState.Success:
Reslut = BehaviorState.Finish;
break;
case BehaviorState.Failure:
case BehaviorState.Reset:
Reslut = BehaviorState.Failure;
LogUtil.LogUtility.PrintError("[BTRandom]BTRandom execute failure!");
break;
default:
Reslut = BehaviorState.Failure;
LogUtil.LogUtility.PrintError("[BTRandom]BTRandom execute failure!");
break;
}
}
}
private static AbsBehavior CreateBehavior(string type)
{
AbsBehavior behavior = null;
string[] str = type.Split(".".ToCharArray());
if (str.Length < 3)
{
LogUtil.LogUtility.PrintError(string.Format("[BehaviorTreeFactory]create Behavior error,type is {0}", type));
return(behavior);
}
switch (str[2])
{
case "BTLog":
break;
case "BTSequence":
break;
case "BTRandom":
break;
case "BTSelector":
break;
default:
break;
}
return(behavior);
}
protected override void Reset()
{
//处理子节点;
for (int i = 0; i < _list.Count; i++)
{
_list[i].ResetBehavior();
}
//处理自己;
_target = null;
}
private static AbsBehavior CreateBehavior(Hashtable table, int id)
{
AbsBehavior behavior = null;
var type = table["$type"].ToString();
var str = type.Split(".".ToCharArray());
if (3 == str.Length)
{
var name = "Framework." + str[2];
var target = Type.GetType(name);
behavior = Activator.CreateInstance(target, table) as AbsBehavior;
}
if (behavior != null)
{
behavior.Id = id;
}
return(behavior);
}
public static BehaviorTree CreateBehaviorTree(AbsEntity entity, string path)
{
InitDict(path);
if (_rootBehavior == null)
{
LogHelper.PrintError("[BehaviorTreeFactory]Root Behavior is null!");
return(null);
}
GenerateConnect(new List <AbsBehavior>()
{
_rootBehavior
});
var tree = new BehaviorTree(_rootBehavior, entity);
_rootBehavior = null;
_behaviorDict.Clear();
_connectionDict.Clear();
return(tree);
}
private static AbsBehavior CreateBehavior(Hashtable table, int id)
{
AbsBehavior behavior = null;
string type = table["$type"].ToString();
switch (type)
{
//顺序执行节点;
case "NodeCanvas.BehaviourTrees.BTSequence":
behavior = new BTSequence(table);
break;
//随机执行节点;
case "NodeCanvas.BehaviourTrees.BTRandom":
behavior = new BTRandom(table);
break;
//选择执行节点;
case "NodeCanvas.BehaviourTrees.BTSelector":
behavior = new BTSelector(table);
break;
//等级条件执行节点;
case "NodeCanvas.BehaviourTrees.BTLevel":
behavior = new BTLevel(table);
break;
//日志执行节点;
case "NodeCanvas.BehaviourTrees.BTLog":
behavior = new BTLog(table);
break;
default:
break;
}
if (behavior != null)
{
behavior.Id = id;
}
return(behavior);
}
public void Serialize(AbsBehavior node)
{
_nextNode = node;
}
public AbsDecorator(Hashtable table) : base(table)
{
_nextNode = null;
}
public BehaviorTree(AbsBehavior root, AbsEntity entity)
{
Root = root;
Entity = entity;
Enable = false;
}
public BehaviorTree(AbsBehavior root, BaseEntity entity)
{
_root = root;
_entity = entity;
_enable = false;
}
