CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAnimation/plAGApplicator.cpp

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*==LICENSE==*/
#include "plAGApplicator.h"
#include "plAGModifier.h"
#include "hsResMgr.h"


// ctor --------
// -----
plAGApplicator::plAGApplicator()
: fChannel(nil),
  fEnabled(true)
{
};

// ctor -------------------------------
// -----
plAGApplicator::plAGApplicator(const plString &channelName)
: fChannel(nil),
  fEnabled(true),
  fChannelName(channelName)
{
};

plAGApplicator::~plAGApplicator()
{
}

void plAGApplicator::Apply(const plAGModifier *mod, double time, bool force)
{
    if (fEnabled || force)
        IApply(mod, time);
}

void plAGApplicator::SetChannelName(const plString &name)
{
    if(!name.IsNull())
        fChannelName = name;
};


plString plAGApplicator::GetChannelName()
{
    return fChannelName;
};

plAGChannel *plAGApplicator::MergeChannel(plAGApplicator *app, plAGChannel *channel, 
                                          plScalarChannel *blend, int blendPriority)    
{
    plAGChannel *result = nil;
    if(fChannel)
    {
        if (CanCombine(app))
            result = fChannel->MakeCombine(channel);
        else if (CanBlend(app))
            result = fChannel->MakeBlend(channel, blend, blendPriority);
    } else {
        result = channel;
    }

    if (result && result != fChannel)
        SetChannel(result);

    return result;
}

plAGApplicator *plAGApplicator::CloneWithChannel(plAGChannel *channel)
{
    plAGApplicator *app = plAGApplicator::ConvertNoRef(plFactory::Create(ClassIndex()));
    app->SetChannel(channel);
    app->Enable(fEnabled);
    app->SetChannelName(fChannelName);
    return app;
}

bool plAGApplicator::CanBlend(plAGApplicator *app)
{
    uint16_t ourClass = ClassIndex();
    uint16_t theirClass = app->ClassIndex();

    return(ourClass == theirClass);

//  return(this->HasBaseClass(theirClass)
//         || app->HasBaseClass(ourClass));
}


void plAGApplicator::Write(hsStream *stream, hsResMgr *mgr)
{
    plCreatable::Write(stream, mgr);

    stream->WriteBool(fEnabled);
    stream->WriteSafeString(fChannelName);
}

void plAGApplicator::Read(hsStream *stream, hsResMgr *mgr)
{
    plCreatable::Read(stream, mgr);

    fEnabled = stream->ReadBool();
    fChannel = nil; // Whatever is reading this applicator in should know what channel to assign it
    fChannelName = stream->ReadSafeString();
}

// IGETxI
// Gain access to of our modifier's target's interfaces.
// This is technically in violation of the principle that only modifiers can get non-const
// reference to their target's interfaces,
// BUT since the plAGApplicator architecture is wholly "owned" by the AGModifier, this
// seemed the most graceful way to do it without const_cast or modifying plModifier or plSceneObject

// IGETAI
plAudioInterface * plAGApplicator::IGetAI(const plAGModifier *modifier) const
{
    return modifier->LeakAI();
}

// IGETCI
plCoordinateInterface * plAGApplicator::IGetCI(const plAGModifier* modifier) const
{
    return modifier->LeakCI();
}

// IGETDI
plDrawInterface * plAGApplicator::IGetDI(const plAGModifier * modifier) const
{
    return modifier->LeakDI();
}

// IGETSI
plSimulationInterface * plAGApplicator::IGetSI(const plAGModifier * modifier) const
{
    return modifier->LeakSI();
}

plObjInterface * plAGApplicator::IGetGI(const plAGModifier * modifier, uint16_t classIdx) const
{
    return modifier->LeakGI(classIdx);
}