// Update is called once per frame
private void Update()
{
BrainTransition triggeredTransition = null;
foreach (KeyValuePair <string, BrainTransition> transition in sm_currentState.transitions)
{
if (transition.Value.isTriggered)
{
triggeredTransition = transition.Value;
transition.Value.isTriggered = false;
break;
}
}
if (triggeredTransition != null)
{
BrainNode targetState = triggeredTransition.targetState;
triggeredTransition.ExecuteTransition();
sm_currentState = targetState;
}
else
{
sm_currentState.Execute();
if (m_nextState != null)
{
sm_currentState = m_nextState;
m_nextState = null;
}
}
}
private void LoadBeaviorTree(BrainState t_state)
{
// Read JSON...
string jsonPath = Application.persistentDataPath + "/" + t_state.nodeName + ".json";
string jsonString = File.ReadAllText(jsonPath);
JSONObject SMJson = (JSONObject)JSON.Parse(jsonString);
BehaviorTree bt = new BehaviorTree
{
btName = t_state.nodeName
};
bt.bt_initialNode = new BrainNode();
SelectNodeType(out bt.bt_initialNode, SMJson["entryNode"]["nodeName"], SMJson["entryNode"]["nodeType"]);
if (!bt_nodes.ContainsKey(bt.bt_initialNode.nodeName))
{
bt_nodes.Add(bt.bt_initialNode.nodeName, bt.bt_initialNode);
}
// Rest of the states
foreach (JSONObject btNode in SMJson["nodes"])
{
BrainNode newNode = new BrainNode();
SelectNodeType(out newNode, btNode["nodeName"], btNode["nodeType"]);
if (!bt_nodes.ContainsKey(newNode.nodeName))
{
bt_nodes.Add(newNode.nodeName, newNode);
}
}
// Entry point transitions
foreach (JSONArray jsonTransition in SMJson["entryNode"]["outputs"])
{
BrainTransition transition = new BrainTransition
{
targetState = bt_nodes[jsonTransition[1]]
};
bt.bt_initialNode.transitions.Add(jsonTransition[1], transition);
}
// Rest of the transitions
foreach (JSONObject state in SMJson["nodes"])
{
foreach (JSONArray jsonTransition in state["outputs"])
{
BrainTransition transition = new BrainTransition
{
targetState = bt_nodes[jsonTransition[1]]
};
bt_nodes[jsonTransition[0]].transitions.Add(jsonTransition[1], transition);
}
}
t_state.behavior = bt;
}
private void LoadBrain()
{
// Read JSON...
string jsonPath = Application.persistentDataPath + "/StateMachine.json";
string jsonString = File.ReadAllText(jsonPath);
JSONObject SMJson = (JSONObject)JSON.Parse(jsonString);
// Entry point
BrainState sm_entryState = new BrainState
{
nodeName = SMJson["entryNode"]["nodeName"]
};
sm_states.Add(sm_entryState.nodeName, sm_entryState);
sm_initialState = sm_entryState;
LoadBeaviorTree(sm_entryState);
// Rest of the states
foreach (JSONObject state in SMJson["nodes"])
{
BrainState newState = new BrainState
{
nodeName = state["nodeName"]
};
sm_states.Add(newState.nodeName, newState);
LoadBeaviorTree(newState);
}
// Entry point transitions
foreach (JSONArray jsonTransition in SMJson["entryNode"]["outputs"])
{
BrainTransition transition = new BrainTransition
{
targetState = sm_states[jsonTransition[1]]
};
sm_entryState.transitions.Add(jsonTransition[1], transition);
}
// Rest of the transitions
foreach (JSONObject state in SMJson["nodes"])
{
foreach (JSONArray jsonTransition in state["outputs"])
{
BrainTransition transition = new BrainTransition
{
targetState = sm_states[jsonTransition[1]]
};
sm_states[jsonTransition[0]].transitions.Add(jsonTransition[1], transition);
}
}
}