CWE-ou-minkata/Sources/Plasma/NucleusLib/pnSceneObject/plDrawInterface.cpp

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*==LICENSE==*/

#include "HeadSpin.h"
#include "plDrawInterface.h"
#include "plDrawable.h"
#include "hsBounds.h"
#include "hsStream.h"
#include "hsResMgr.h"
#include "plgDispatch.h"
#include "plSceneObject.h"
#include "pnMessage/plEnableMsg.h"
#include "pnMessage/plIntRefMsg.h"
#include "pnMessage/plDISpansMsg.h"

plDrawInterface::plDrawInterface()
{
}

plDrawInterface::~plDrawInterface()
{

}

void plDrawInterface::SetDrawableMeshIndex( uint8_t which, uint32_t index ) 
{
    ICheckDrawableIndex(which);

    fDrawableIndices[which] = index; 
}

void plDrawInterface::SetProperty(int prop, bool on)
{
    plObjInterface::SetProperty(prop, on);

    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] )
            fDrawables[i]->SetProperty(fDrawableIndices[i], prop, on);
    }
}

void plDrawInterface::ISetSceneNode(plKey newNode)
{
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] )
            fDrawables[i]->SetSceneNode(newNode);
    }
}

void plDrawInterface::SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
    if( !GetProperty(kDisable) )
    {
        int i;
        for( i = 0; i < fDrawables.GetCount(); i++ )
        {
            if( fDrawables[i] )
                fDrawables[i]->SetTransform( fDrawableIndices[i], l2w, w2l );
        }
    }
}

const hsBounds3Ext plDrawInterface::GetLocalBounds() const
{
    hsBounds3Ext retVal;
    retVal.MakeEmpty();
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] )
            retVal.Union(&fDrawables[i]->GetLocalBounds(fDrawableIndices[i]));
    }
    return retVal;
}

const hsBounds3Ext plDrawInterface::GetWorldBounds() const
{
    hsBounds3Ext retVal;
    retVal.MakeEmpty();
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] )
            retVal.Union(&fDrawables[i]->GetWorldBounds(fDrawableIndices[i]));
    }
    return retVal;
}

const hsBounds3Ext plDrawInterface::GetMaxWorldBounds() const
{
    hsBounds3Ext retVal;
    retVal.MakeEmpty();
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] )
            retVal.Union(&fDrawables[i]->GetMaxWorldBounds(fDrawableIndices[i]));
    }
    return retVal;
}

void plDrawInterface::Read(hsStream* s, hsResMgr* mgr)
{
    plObjInterface::Read(s, mgr);

    int nDrawables = s->ReadLE32();
    if (nDrawables > 0) 
        ICheckDrawableIndex(nDrawables-1);
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        fDrawableIndices[i] = s->ReadLE32();

        plIntRefMsg* refMsg = new plIntRefMsg(GetKey(), plRefMsg::kOnCreate, i, plIntRefMsg::kDrawable);
        mgr->ReadKeyNotifyMe(s,refMsg, plRefFlags::kActiveRef);
    }

    int nReg = s->ReadLE32();
    fRegions.SetCountAndZero(nReg);
    for( i = 0; i < nReg; i++ )
    {
        plGenRefMsg* refMsg = new plGenRefMsg(GetKey(), plRefMsg::kOnCreate, -1, kRefVisRegion);
        mgr->ReadKeyNotifyMe(s, refMsg, plRefFlags::kActiveRef);
    }
}

void plDrawInterface::Write(hsStream* s, hsResMgr* mgr)
{
    plObjInterface::Write(s, mgr);

    s->WriteLE32(fDrawables.GetCount());
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        s->WriteLE32(fDrawableIndices[i]);
        
        mgr->WriteKey(s, fDrawables[i]);
    }
    
    s->WriteLE32(fRegions.GetCount());
    for( i = 0; i < fRegions.GetCount(); i++ )
    {
        mgr->WriteKey(s, fRegions[i]);
    }
}

//// ReleaseData //////////////////////////////////////////////////////////////
//  Called by SceneViewer to release the data for this given object (when
//  its parent sceneObject is deleted).

void    plDrawInterface::ReleaseData( void )
{
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] && (fDrawableIndices[i] != uint32_t(-1)) )
        {
            plDISpansMsg* diMsg = new plDISpansMsg(fDrawables[i]->GetKey(), plDISpansMsg::kRemovingSpan, fDrawableIndices[i], 0);
            diMsg->SetSender(GetKey());
            diMsg->Send();
        }
        //fDrawableIndices[i] = uint32_t(-1);
        fDrawables.Reset();
        fDrawableIndices.Reset();
    }
}

void plDrawInterface::ICheckDrawableIndex(uint8_t which)
{
    if( which >= fDrawableIndices.GetCount() )
    {
        fDrawables.ExpandAndZero(which+1);
        
        int n = fDrawableIndices.GetCount();
        fDrawableIndices.ExpandAndZero(which+1);
        int i;
        for( i = n; i <= which; i++ )
            fDrawableIndices[i] = uint32_t(-1);
    }
}

void plDrawInterface::ISetDrawable(uint8_t which, plDrawable* dr)
{
    ICheckDrawableIndex(which);
    fDrawables[which] = dr;
    
    if( dr )
        dr->SetSceneNode(GetSceneNode());

    // We might read the vis regions before the drawables, so
    // we have to check for any already loaded.
    ISetVisRegions(which);
    
#ifdef HS_DEBUGGING
    if( fDrawableIndices[which] != (uint32_t)-1 )
    {
        plDISpansMsg* diMsg = new plDISpansMsg(dr->GetKey(), plDISpansMsg::kAddingSpan, fDrawableIndices[which], 0);
        diMsg->SetSender(GetKey());
        diMsg->Send();
    }
#endif
}

void plDrawInterface::IRemoveDrawable(plDrawable *dr)
{
    int idx = fDrawables.Find(dr);
    if( fDrawables.kMissingIndex != idx )
    {
        fDrawables[idx] = nil;
        fDrawableIndices[idx] = uint32_t(-1);
    }
    else
    {
        hsAssert(false, "Trying to remove a drawable that doesn't belong to us");
    }
}

void plDrawInterface::ISetVisRegion(hsKeyedObject* reg, bool on)
{
    int i;
    for( i = 0; i < fDrawables.GetCount(); i++ )
    {
        if( fDrawables[i] && (fDrawableIndices[i] != uint32_t(-1)) )
        {
            fDrawables[i]->SetDISpanVisSet(fDrawableIndices[i], reg, on);
        }
    }
    int idx = fRegions.Find(reg);
    if( on )
    {
        if( idx == fRegions.kMissingIndex )
            fRegions.Append(reg);
    }
    else
    {
        if( idx != fRegions.kMissingIndex )
            fRegions.Remove(idx);
    }

}

void plDrawInterface::ISetVisRegions(int iDraw)
{
    if( fDrawables[iDraw] && (fDrawableIndices[iDraw] != uint32_t(-1)) )
    {
        int i;
        for( i = 0; i < fRegions.GetCount(); i++ )
        {
            fDrawables[iDraw]->SetDISpanVisSet(fDrawableIndices[iDraw], fRegions[i], true);
        }
    }
}

// Export only. Use messages for runtime
void plDrawInterface::SetDrawable(uint8_t which, plDrawable *dr)
{
    if( dr )
    {
        // This is a little convoluted, but it makes GCC happy and doesn't hurt anybody.
        plIntRefMsg* intRefMsg = new plIntRefMsg(GetKey(), plRefMsg::kOnCreate, which, plIntRefMsg::kDrawable);
        plRefMsg* refMsg = intRefMsg;
//      hsgResMgr::ResMgr()->SendRef(dr->GetKey(), intRefMsg, plRefFlags::kActiveRef); // THIS WON'T COMPILE UNDER GCC
        hsgResMgr::ResMgr()->SendRef(dr, refMsg, plRefFlags::kActiveRef);
    }
    else
    {
        ISetDrawable(which, nil);
    }
}

bool plDrawInterface::MsgReceive(plMessage* msg)
{
    plIntRefMsg* intRefMsg = plIntRefMsg::ConvertNoRef(msg);
    if( intRefMsg )
    {
        switch( intRefMsg->fType )
        {
        case plIntRefMsg::kDrawable:
            if( intRefMsg->GetContext() & (plRefMsg::kOnDestroy|plRefMsg::kOnRemove) )
            {
                IRemoveDrawable(plDrawable::ConvertNoRef(intRefMsg->GetRef()));
            }
            else
            {
                ISetDrawable((uint8_t)intRefMsg->fWhich, plDrawable::ConvertNoRef(intRefMsg->GetRef()));
            }
            return true;
        default:
            break;
        }
    }
    plGenRefMsg* genRefMsg = plGenRefMsg::ConvertNoRef(msg);
    if( genRefMsg )
    {
        switch( genRefMsg->fType )
        {
        case kRefVisRegion:
            if( genRefMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnRequest|plRefMsg::kOnReplace) )
                ISetVisRegion(genRefMsg->GetRef(), true);
            else
                ISetVisRegion(genRefMsg->GetRef(), false);
            break;
        default:
            break;
        }
        return true;
    }
    plEnableMsg* pEnableMsg = plEnableMsg::ConvertNoRef( msg );
    if (pEnableMsg)
    {
        SetProperty(kDisable, pEnableMsg->Cmd(plEnableMsg::kDisable));
        if( GetOwner() )
            SetTransform(GetOwner()->GetLocalToWorld(), GetOwner()->GetWorldToLocal());
        return true;
    }
    return plObjInterface::MsgReceive(msg);
}

void    plDrawInterface::SetUpForParticleSystem( uint32_t maxNumEmitters, uint32_t maxNumParticles, hsGMaterial *material, hsTArray<plKey>& lights )
{
    hsAssert( fDrawables[0] != nil, "No drawable to use for particle system!" );
    SetDrawableMeshIndex( 0, fDrawables[0]->CreateParticleSystem( maxNumEmitters, maxNumParticles, material ) );
    int i;
    for( i = 0; i < lights.GetCount(); i++ )
    {
        hsgResMgr::ResMgr()->AddViaNotify(lights[i], new plGenRefMsg(fDrawables[0]->GetKey(), plRefMsg::kOnCreate, fDrawableIndices[0], plDrawable::kMsgPermaLightDI), plRefFlags::kPassiveRef);
    }

    ISetVisRegions(0);
}

void    plDrawInterface::ResetParticleSystem( void )
{
    hsAssert( fDrawables[0] != nil, "No drawable to use for particle system!" );
    fDrawables[0]->ResetParticleSystem( fDrawableIndices[0] );
}

void    plDrawInterface::AssignEmitterToParticleSystem( plParticleEmitter *emitter )
{
    hsAssert( fDrawables[0] != nil, "No drawable to use for particle system!" );
    fDrawables[0]->AssignEmitterToParticleSystem( fDrawableIndices[0], emitter );
}