CWE-ou-minkata/Sources/Plasma/PubUtilLib/plModifier/plResponderSDLModifier.cpp

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*==LICENSE==*/
#include "plResponderSDLModifier.h"
#include "plSDL/plSDL.h"
#include "plResponderModifier.h"

// static vars
char plResponderSDLModifier::kStrCurState[]="curState";
char plResponderSDLModifier::kStrEnabled[]="enabled";
char plResponderSDLModifier::kStrCurCommand[]="curCommand";
char plResponderSDLModifier::kStrNetRequest[]="netRequest";
char plResponderSDLModifier::kStrCompletedEvents[]="completedEvents";
char plResponderSDLModifier::kStrPlayerKey[]="playerKey";
char plResponderSDLModifier::kStrTriggerer[]="triggerer";

plKey plResponderSDLModifier::GetStateOwnerKey() const
{
    return fResponder ? fResponder->GetKey() : nil;
}

//
// get current state from responder
// fill out state data rec
//
void plResponderSDLModifier::IPutCurrentStateIn(plStateDataRecord* dstState)
{
    hsAssert(fResponder, "nil responder?");

    dstState->FindVar(kStrCurState)->Set((int)fResponder->fCurState);
    dstState->FindVar(kStrEnabled)->Set(fResponder->fEnabled);
    
    dstState->FindVar(kStrCurCommand)->Set((int)fResponder->fCurCommand);   
    dstState->FindVar(kStrNetRequest)->Set(fResponder->fNetRequest);

    int i;
    int num=fResponder->fCompletedEvents.GetNumBitVectors();
    dstState->FindVar(kStrCompletedEvents)->Alloc(num);
    for(i=0;i<num; i++)
    {
        int ev = fResponder->fCompletedEvents.GetBitVector(i);
        dstState->FindVar(kStrCompletedEvents)->Set(ev, i);
    }
    
    dstState->FindVar(kStrPlayerKey)->Set(fResponder->fPlayerKey);
    dstState->FindVar(kStrTriggerer)->Set(fResponder->fTriggerer);
}

//
// apply incoming state to responder
//
void plResponderSDLModifier::ISetCurrentStateFrom(const plStateDataRecord* srcState)
{
    hsAssert(fResponder, "nil responder?");

    int curState = fResponder->fCurState;
    int curCommand = fResponder->fCurCommand;
    bool enabled = fResponder->fEnabled;
    bool netRequest = fResponder->fNetRequest;
    hsBitVector completedEvents = fResponder->fCompletedEvents;
    plKey playerKey = fResponder->fPlayerKey;
    plKey triggerer = fResponder->fTriggerer;

    plStateDataRecord::SimpleVarsList vars;
    int numVars = srcState->GetUsedVars(&vars);

    for (int i = 0; i < numVars; i++)
    {
        if (vars[i]->IsNamed(kStrCurState))
        {
            vars[i]->Get(&curState);
        }
        else if (vars[i]->IsNamed(kStrEnabled))
        {
            vars[i]->Get(&enabled);
        }
        else if (vars[i]->IsNamed(kStrCurCommand))
        {
            vars[i]->Get(&curCommand);
        }
        else if (vars[i]->IsNamed(kStrNetRequest))
        {
            vars[i]->Get(&netRequest);          
        }
        else if (vars[i]->IsNamed(kStrCompletedEvents))
        {
            int numEvents = vars[i]->GetCount();
            completedEvents.SetNumBitVectors(numEvents);

            for (int j = 0; j < numEvents; j++)
            {
                int bv;
                vars[i]->Get(&bv, j);
                completedEvents.SetBitVector(j, bv);
            }
        }
        else if (vars[i]->IsNamed(kStrPlayerKey))
        {
            vars[i]->Get(&playerKey);
        }
        else if (vars[i]->IsNamed(kStrTriggerer))
        {
            vars[i]->Get(&triggerer);
        }
        else
        {
            hsAssert(false, "Unknown var name");
        }
    }

    if (numVars)
    {
        bool stateValid = (curState >= 0 && curState < fResponder->fStates.Count());
        hsAssert(stateValid, "Received invalid responder state");
        if (!stateValid)
            return;

        bool cmdValid = curCommand == -1 || (curCommand >= 0 && curCommand < fResponder->fStates[curState].fCmds.Count());
        hsAssert(stateValid, "Received invalid responder command");
        if (!cmdValid)
            return;

        // Could try to validate the completed events, but if someone hacked that
        // all they could do is set events that we don't look at

        fResponder->fCurState = curState;
        fResponder->fCurCommand = curCommand;
        fResponder->fEnabled = enabled;
        fResponder->fNetRequest = netRequest;
        fResponder->fCompletedEvents = completedEvents;
        fResponder->fPlayerKey = playerKey;
        fResponder->fTriggerer = triggerer;

        fResponder->Restore();
    }
}