SCR_AITalk.c

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class SCR_AITalk: AITaskScripted
{
    static const string PORT_SPEAKER = "SpeakerIn";
    static const string PORT_TARGET = "TargetIn";
    static const string PORT_LOCATION = "LocationIn";
    static const string PORT_INT = "EnumIn";
    
    [Attribute("0", UIWidgets.ComboBox, "Message type", "", ParamEnumArray.FromEnum(ECommunicationType) )]
    protected ECommunicationType m_messageType;
    
    [Attribute("0", UIWidgets.ComboBox, "Determines priority, timeout, and other values. See SCR_EAITalkRequestPreset", enums: ParamEnumArray.FromEnum(SCR_EAITalkRequestPreset))]
    protected SCR_EAITalkRequestPreset m_ePreset;
    
    [Attribute("0", UIWidgets.CheckBox, "When true, the node will be running until the request is finished, and will fail if the request fails.")]
    protected bool m_bSynchronous;
    
    [Attribute("0", UIWidgets.CheckBox, "When true, request will be transmitted by speaker even if there is noone to potentially receive (hear) it.")]
    protected bool m_bTransmitIfNoReceivers;
    
    [Attribute("1", UIWidgets.CheckBox, "When true, request will be transmitted by speaker being a passanger of a vehicle.")]
    protected bool m_bTransmitIfPassenger;
    
    protected ref SCR_AITalkRequest m_Request;
 
    //-----------------------------------   
    override ENodeResult EOnTaskSimulate(AIAgent owner, float dt)
    {
        if (m_Request)
        {
            // We've sent a request, check its state ...
            SCR_EAITalkRequestState rqState = m_Request.m_eState;
            if (rqState == SCR_EAITalkRequestState.IDLE || rqState == SCR_EAITalkRequestState.TRANSMITTING)
                return ENodeResult.RUNNING;
            else if (rqState == SCR_EAITalkRequestState.COMPLETED)
            {
                //_print(string.Format("Request completed: %1", m_Request.GetDebugString()));
                Reset();
                return ENodeResult.SUCCESS;
            }
            else if (rqState == SCR_EAITalkRequestState.FAILED)
            {
                //_print(string.Format("Request failed: %1", m_Request.GetDebugString()));
                Reset();
                return ENodeResult.FAIL;
            }
        }
        else
        {
            // Didn't send a request yet
            IEntity speaker;
            bool speakerPortConnected = GetVariableIn(PORT_SPEAKER, speaker);
            if (!speakerPortConnected)
            {
                // Port not connected - speaker is owner of node
                speaker = owner;
            }
            else if (speakerPortConnected && !speaker)
            {
                // Port is connected but entity is null, failure
                Reset();
                return ENodeResult.FAIL;
            }
            
            SCR_AICommsHandler commsHandler = FindCommsHandler(speaker);
            
            if (!commsHandler)
            {
                // Could not find comms handler, it's impossible to transmit
                string callstackStr;
                GetCallstackStr(callstackStr);
                Print(string.Format("SCR_AITalk: was not able to find SCR_AICommsHandler for %1. BT: %2", speaker, callstackStr), LogLevel.ERROR);
                Reset();
                return ENodeResult.FAIL;
            }
            
            // Check if we can bypass this (optimize out)
            if (commsHandler.CanBypass())
            {
                return ENodeResult.SUCCESS;
            }
                
            // Read ports
            IEntity rqTarget;
            vector rqPos;
            int rqEnum;
            
            GetVariableIn(PORT_TARGET, rqTarget);
            GetVariableIn(PORT_LOCATION, rqPos);
            GetVariableIn(PORT_INT, rqEnum);
            
            // Create and fill request
            SCR_AITalkRequest rq = new SCR_AITalkRequest(m_messageType, rqTarget, rqPos, rqEnum, m_bTransmitIfNoReceivers, m_bTransmitIfPassenger, m_ePreset);
            
            commsHandler.AddRequest(rq);
            
            //_print(string.Format("Added request: %1", rq.GetDebugString()));
            
            if (m_bSynchronous)
            {
                // If synchronous, we care about request result
                
                // Store request, return running, wait until it's done
                //_print("Synchronous, will wait for request result");
                m_Request = rq;
                return ENodeResult.RUNNING;
            }
            else
            {
                // If asynchronous, we don't care about request result
                //_print("Asynchronous, return success");
                Reset();
                return ENodeResult.SUCCESS;
            }
        }
        return 0;
    }
    
    //----------------------------------------------------------------------
    protected SCR_AICommsHandler FindCommsHandler(notnull IEntity speaker)
    {
        AIAgent speakerAgent = AIAgent.Cast(speaker);
        AIGroup speakerGroup = AIGroup.Cast(speaker);
        if (speakerGroup)
        {
            // Speaker is group
            // Find comms handler of leader agent
            
            AIAgent leaderAgent = speakerGroup.GetLeaderAgent();
            
            if (!leaderAgent)
                return null;
            
            SCR_AIUtilityComponent utility = SCR_AIUtilityComponent.Cast(leaderAgent.FindComponent(SCR_AIUtilityComponent));
            if (!utility)
                return null;
            
            return utility.m_CommsHandler;
        }   
        else if (speakerAgent)
        {
            SCR_AIUtilityComponent utility = SCR_AIUtilityComponent.Cast(speakerAgent.FindComponent(SCR_AIUtilityComponent));
            if (!utility)
                return null;
            return utility.m_CommsHandler;
        }
        else
        {
            // Speaker is Entity
            AIControlComponent contr = AIControlComponent.Cast(speaker.FindComponent(AIControlComponent));
            if (!contr)
                return null;
            
            speakerAgent = contr.GetControlAIAgent();
            if (!speakerAgent)
                return null;
            
            SCR_AIUtilityComponent utility = SCR_AIUtilityComponent.Cast(speakerAgent.FindComponent(SCR_AIUtilityComponent));
            if (!utility)
                return null;
            return utility.m_CommsHandler;
        }
    }
 
    //----------------------------------------------------------------------
    override void OnAbort(AIAgent owner, Node nodeCausingAbort)
    {
        Reset();
    }
    
    //----------------------------------------------------------------------
    protected void Reset()
    {
        m_Request = null;
    }
    
    //----------------------------------------------------------------------
    override bool VisibleInPalette()
    {
        return true;
    }
    
    //----------------------------------------------------------------------
    protected static ref TStringArray s_aVarsIn = {
        PORT_SPEAKER,
        PORT_TARGET,
        PORT_LOCATION,
        PORT_INT
    };
    override TStringArray GetVariablesIn()
    {
        return s_aVarsIn;
    }
    
    
    //----------------------------------------------------------------------
    override protected bool CanReturnRunning()
    {
        return true;
    }
    
    //----------------------------------------------------------------------
    protected void _print(string str)
    {
        Print(string.Format("SCR_AITalk %1: %2", this, str));
    }
};