CWE-ou-minkata/Sources/Tools/MaxComponent/plParticleComponents.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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GNU General Public License for more details.

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along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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(or a modified version of those libraries),
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*==LICENSE==*/
#include "HeadSpin.h"
#include <windowsx.h>

#include "max.h"
#include "resource.h"
#include "plComponent.h"
#include "plComponentReg.h"
#include "plParticleComponents.h"
#include "plAnimComponent.h"
#include "plNotetrackAnim.h"

#include "pnSceneObject/plSceneObject.h"
#include "plScene/plSceneNode.h"
#include "plgDispatch.h"

#include "MaxConvert/plConvert.h"
#include "MaxConvert/hsConverterUtils.h"
#include "MaxConvert/hsMaterialConverter.h"
#include "MaxConvert/plMeshConverter.h"
#include "MaxConvert/hsControlConverter.h"
#include "MaxMain/plMaxNode.h"
#include "MaxPlasmaMtls/Materials/plParticleMtl.h"

#include "MaxExport/plErrorMsg.h"

#include "hsResMgr.h"

#include "pnMessage/plObjRefMsg.h"
#include "pnMessage/plNodeRefMsg.h"
#include "plInterp/plController.h"
#include "plInterp/hsInterp.h"
#include "plInterp/plAnimEaseTypes.h"
#include "MaxMain/plMaxNode.h"
#include "MaxMain/MaxCompat.h"
#include "pnKeyedObject/plKey.h"
#include "plSurface/hsGMaterial.h"
#include "plPipeline/plGBufferGroup.h"

#include "plParticleSystem/plParticleSystem.h"
#include "plParticleSystem/plParticleEmitter.h"
#include "plParticleSystem/plParticleEffect.h"
#include "plParticleSystem/plParticleGenerator.h"
#include "plParticleSystem/plParticleApplicator.h"
#include "plParticleSystem/plConvexVolume.h"
#include "plParticleSystem/plBoundInterface.h"

#include "plAvatar/plScalarChannel.h"
#include "plAvatar/plAGAnim.h"

#include "pnSceneObject/plDrawInterface.h"

#include "plGLight/plLightInfo.h"
#include "plLightGrpComponent.h"

void DummyCodeIncludeFuncParticles()
{
}

//////////////////////////////////////////////////////////////////////////////////////////
//
// stuff for plParticleComponent

const char *plParticleCoreComponent::GenStrings[] = // line these up with the generation types enum.
{
    "Point Source",
    "Mesh",
    "One Per Vertex"
};

hsBool plParticleCoreComponent::IsParticleSystemComponent(plComponentBase *comp)
{
    if (comp->ClassID() == PARTICLE_SYSTEM_COMPONENT_CLASS_ID)
        return true;

    return false;
}

hsBool plParticleCoreComponent::NodeHasSystem(plMaxNode *pNode)
{
    int i;
    for (i = 0; i < pNode->NumAttachedComponents(); i++)
    {
        if (plParticleCoreComponent::IsParticleSystemComponent(pNode->GetAttachedComponent(i)))
            return true;
    }
    return false;
}

hsBool plParticleCoreComponent::PreConvert(plMaxNode *pNode, plErrorMsg *pErrMsg)
{
    GetParamVals( pNode );
    pNode->SetForceLocal(true);
    pNode->SetDrawable(false);
    pNode->SetParticleRelated(true);

    Mtl *maxMaterial = hsMaterialConverter::Instance().GetBaseMtl(pNode);
    plConvert &convert = plConvert::Instance();
    if (!hsMaterialConverter::IsParticleMat(maxMaterial))
    {
        maxMaterial = nil;
        pNode->SetMtl(NULL);
        if (pErrMsg->Set(!(convert.fWarned & plConvert::kWarnedBadMaterialOnParticle), pNode->GetName(),
        "Only \"Plasma Particle\" materials (not in a multi-material) may be applied to particle system objects."
        " Using a default material for now.").CheckAskOrCancel())
        {
            convert.fWarned |= plConvert::kWarnedBadMaterialOnParticle;
        }
        pErrMsg->Set(false);
    }

    // Moving this from Convert so the DrawInterface will appear sooner. Other components expect
    // the interfaces to be fully set up by the Convert pass.
    plSceneNode *sNode = plSceneNode::ConvertNoRef( pNode->GetRoomKey()->GetObjectPtr() );
    plDrawInterface *di = new plDrawInterface;
    hsgResMgr::ResMgr()->NewKey(IGetUniqueName(pNode), di, pNode->GetLocation(), pNode->GetLoadMask());
    hsgResMgr::ResMgr()->AddViaNotify( di->GetKey(), new plObjRefMsg(pNode->GetSceneObject()->GetKey(), plRefMsg::kOnCreate, 0, plObjRefMsg::kInterface ), plRefFlags::kActiveRef );
    pNode->SetDISceneNodeSpans(di, true);

    return true;
}

hsBool plParticleCoreComponent::Convert(plMaxNode *node, plErrorMsg *pErrMsg)
{   
    int32_t i, j, k;

    plLocation nodeLoc = node->GetKey()->GetUoid().GetLocation();
    const char *objName = node->GetKey()->GetName();

    plSceneObject *sObj = node->GetSceneObject();
    plParticleSystem *sys = new plParticleSystem();

    hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), sys, nodeLoc, node->GetLoadMask());   

    // Add material and lifespan animated params.
    Mtl *maxMaterial = hsMaterialConverter::Instance().GetBaseMtl(node);
    hsTArray<hsGMaterial *> matArray;
    hsMaterialConverter::Instance().GetMaterialArray(maxMaterial, node, matArray);
    hsGMaterial* particleMat = matArray[0];
    
    plController *ambientCtl = nil;
    plController *diffuseCtl = nil;
    plController *opacityCtl = nil; 
    plController *widthCtl = nil;
    plController *heightCtl = nil;
    hsControlConverter& cc = hsControlConverter::Instance();

    if (hsMaterialConverter::IsParticleMat(maxMaterial)) // Exporter will yell if this is false, but we have to handle it
    {
        plParticleMtl *particleMtl = (plParticleMtl *)maxMaterial; // We check beforehand that this is ok
        SetParticleStats(particleMtl);
        ambientCtl = cc.MakeColorController(particleMtl->GetAmbColorController(), node);
        diffuseCtl = cc.MakeColorController(particleMtl->GetColorController(), node);
        opacityCtl = cc.MakeScalarController(particleMtl->GetOpacityController(), node);
        widthCtl = cc.MakeScalarController(particleMtl->GetWidthController(), node);
        heightCtl = cc.MakeScalarController(particleMtl->GetHeightController(), node);
    }

    float genLife        = -1;
    float partLifeMin, partLifeMax;
    float pps            = fUserInput.fPPS; 
    hsPoint3 pos(0, 0, 0);
    float pitch          = PI;
    float yaw            = 0; 
    float angleRange     = fUserInput.fConeAngle * PI / 180.f;
    float velMin         = fUserInput.fVelocityMin;
    float velMax         = fUserInput.fVelocityMax;
    float xSize          = fUserInput.fHSize;
    float ySize          = fUserInput.fVSize;
    float scaleMin       = fUserInput.fScaleMin / 100.0f;
    float scaleMax       = fUserInput.fScaleMax / 100.0f;
    float gravity        = fUserInput.fGravity / 100.0f;
    float drag           = fUserInput.fDrag / 100.f;
    float windMult       = fUserInput.fWindMult / 100.f;
    float massRange      = fUserInput.fMassRange;
    float rotRange       = fUserInput.fRotRange * PI / 180.f;

    uint32_t xTiles = fUserInput.fXTiles; 
    uint32_t yTiles = fUserInput.fYTiles; 
    uint32_t maxEmitters = 1 + GetEmitterReserve();
    uint32_t maxTotalParticles = 0;   

    // Need to do this even when immortal, so that maxTotalParticles is computed correctly.
    partLifeMin = fUserInput.fLifeMin;
    partLifeMax = fUserInput.fLifeMax;
    plLeafController *ppsCtl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kPPS)), node);
    if (ppsCtl != nil && ppsCtl->GetLength() > 0)
    {
        // Simulate just the birth across the curve and record the max
        float frameDelta = (1.f / MAX_FRAMES_PER_SEC); 
        float avgLife = (partLifeMax + partLifeMin) / 2;
        uint32_t count = node->NumAttachedComponents();
        uint32_t lifeTicks = avgLife / frameDelta;
        float *birth = new float[lifeTicks];

        // Find any anim components attached to the same node.
        for (i = 0; i < count; i++)
        {
            if (!plAnimComponentBase::IsAnimComponent(node->GetAttachedComponent(i)))
                continue;

            float maxAnimParticles = 0;

            plAnimComponentBase *comp = (plAnimComponentBase *)node->GetAttachedComponent(i);
            plATCAnim *anim = plATCAnim::ConvertNoRef(comp->fAnims[node]);

            // If it's an ATC anim, we can be aggressive in determining the max
            if (anim)
            {           
                float curAnimParticles = 0;

                float loopStart, loopEnd;

                for (j = -1; j < (int32_t)anim->GetNumLoops(); j++)
                {
                    // Initialize our birth counters
                    for (k = 0; k < lifeTicks; k++)
                        birth[k] = 0;

                    if (j == -1)
                    {
                        loopStart = anim->GetStart();
                        loopEnd = anim->GetEnd();
                    }
                    else
                        anim->GetLoop(j, loopStart, loopEnd);

                    float loopLength = loopEnd - loopStart;

                    if (loopLength == 0) // It's the default "(Entire Animation)"
                        loopLength = ppsCtl->GetLength();

                    uint32_t loopTicks = loopLength * MAX_FRAMES_PER_SEC;

                    uint32_t startTick = loopStart * MAX_FRAMES_PER_SEC;
                    uint32_t tick;
                    for (tick = 0; tick < loopTicks + lifeTicks; tick++)
                    {
                        curAnimParticles -= birth[tick % lifeTicks] * frameDelta;
                        float birthStart = 0.f;
                        float birthEnd = 0.f;
                        ppsCtl->Interp(((tick % loopTicks) + startTick) * frameDelta, &birthStart);
                        ppsCtl->Interp(((tick % loopTicks) + startTick + 1) * frameDelta, &birthEnd);
                        birth[tick % lifeTicks] = (birthStart + birthEnd) / 2;
                        curAnimParticles += birth[tick % lifeTicks] * frameDelta;
                        if (curAnimParticles > maxAnimParticles)
                            maxAnimParticles = curAnimParticles;
                    }
                }
            }
            else // No info on the animation. Assume the worst.
            {
                float maxPps = 0;
                int i;
                for (i = 1; i < ppsCtl->GetNumKeys(); i++)
                {
                    float curVal = 0;
                    hsScalarKey *key = ppsCtl->GetScalarKey(i);
                    if (key)
                        curVal = key->fValue;
                    
                    hsBezScalarKey *bezKey = ppsCtl->GetBezScalarKey(i);
                    if (bezKey)
                        curVal = bezKey->fValue;

                    if( curVal > maxPps )
                        maxPps = curVal;
                }
                maxAnimParticles = maxPps * (partLifeMax - (partLifeMax - partLifeMin) / 2);
            }
            
            if (maxTotalParticles < maxAnimParticles)
                maxTotalParticles = (uint32_t)maxAnimParticles;
        }
        delete [] birth;
    }
    else
    {
        maxTotalParticles = pps * (partLifeMax - (partLifeMax - partLifeMin) / 2);
    }
    maxTotalParticles *=  maxEmitters;

    delete ppsCtl;
    ppsCtl = nil;
    
    uint32_t maxAllowedParticles = plGBufferGroup::kMaxNumIndicesPerBuffer / 6;
    if (maxTotalParticles > maxAllowedParticles)
    {
        char text[512];
        sprintf(text, "This particle system requires a buffer for %d particles. "
                      "The max allowed for a single system is %d. Capping this system "
                      "at the max. If you need more, create a 2nd particle system "
                      "and balance out the birthrates.", 
                      maxTotalParticles, maxAllowedParticles);

        plConvert &convert = plConvert::Instance();
        if (pErrMsg->Set(!(convert.fWarned & plConvert::kWarnedTooManyParticles), node->GetName(), text).CheckAskOrCancel())
        {
            convert.fWarned |= plConvert::kWarnedTooManyParticles;
        }
        pErrMsg->Set(false);
        maxTotalParticles = maxAllowedParticles;
    }
    
    if (fUserInput.fImmortal)
    {
        partLifeMin     = -1.0;
        partLifeMax     = -1.0;
    }

    // Figure out the appropriate generator to add
    plParticleGenerator *generator = nil;
    uint32_t sources;
    float *pitchArray;
    float *yawArray;
    hsPoint3 *pointArray;
    hsVector3 *dirArray;
    if (fUserInput.fGenType == kGenPoint)
    {
        sources = 1;
        pitchArray = new float[sources];
        yawArray = new float[sources];
        pointArray = new hsPoint3[sources];
        pitchArray[0] = pitch;
        yawArray[0] = yaw;
        pointArray[0].Set(0, 0, 0);
        plSimpleParticleGenerator *gen = new plSimpleParticleGenerator();
        gen->Init(genLife, partLifeMin, partLifeMax, pps, sources, pointArray, pitchArray, yawArray, angleRange, 
                  velMin, velMax, xSize, ySize, scaleMin, scaleMax, massRange, rotRange);
        generator = gen;
    }
    else if (fUserInput.fGenType == kGenMesh)
    {
        hsTArray<hsVector3> normals;
        hsTArray<hsPoint3> pos;
        plMeshConverter::Instance().StuffPositionsAndNormals(node, &pos, &normals);
        sources = normals.GetCount();
        pitchArray = new float[sources];
        yawArray = new float[sources];
        pointArray = new hsPoint3[sources];
        int i;
        for (i = 0; i < sources; i++)
        {
            plParticleGenerator::ComputePitchYaw(pitchArray[i], yawArray[i], normals.Get(i));
            pointArray[i] = pos.Get(i);
        }
        plSimpleParticleGenerator *gen = new plSimpleParticleGenerator();
        gen->Init(genLife, partLifeMin, partLifeMax, pps, sources, pointArray, pitchArray, yawArray, angleRange, 
                  velMin, velMax, xSize, ySize, scaleMin, scaleMax, massRange, rotRange);
        generator = gen;
    }
    else // One per vertex
    {
        hsTArray<hsVector3> normals;
        hsTArray<hsPoint3> pos;
        plMeshConverter::Instance().StuffPositionsAndNormals(node, &pos, &normals);
        sources = normals.GetCount();

        pointArray = new hsPoint3[sources];
        dirArray = new hsVector3[sources];
        int i;
        for (i = 0; i < sources; i++)
        {
            dirArray[i] = normals.Get(i);
            pointArray[i] = pos.Get(i);
        }

        plOneTimeParticleGenerator *gen = new plOneTimeParticleGenerator();
        gen->Init(sources, pointArray, dirArray, xSize, ySize, scaleMin, scaleMax, rotRange);
        generator = gen;
        maxTotalParticles = sources;
        gravity = 0.f;
    }

    // Init and attach to the scene object
    sys->Init(xTiles, yTiles, maxTotalParticles, maxEmitters, ambientCtl, diffuseCtl, opacityCtl, 
              widthCtl, heightCtl);
    hsgResMgr::ResMgr()->AddViaNotify( particleMat->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, 0 ), plRefFlags::kActiveRef );
    hsgResMgr::ResMgr()->AddViaNotify( sys->GetKey(), new plObjRefMsg( sObj->GetKey(), plRefMsg::kOnCreate, -1, plObjRefMsg::kModifier ), plRefFlags::kActiveRef );

    // Set up normals and orientation
    uint32_t miscFlags = 0;
    switch(fUserInput.fNormal)
    {
    case plParticleMtl::kNormalViewFacing:
        miscFlags |= plParticleEmitter::kNormalViewFacing;
        break;
    case plParticleMtl::kNormalUp:
    case plParticleMtl::kEmissive: // For emissive, we don't care about the normal. This choice makes us
                                   // not waste time computing one.
        miscFlags |= plParticleEmitter::kNormalUp;
        break;
    case plParticleMtl::kNormalNearestLight:
        miscFlags |= plParticleEmitter::kNormalNearestLight;
        break;
    case plParticleMtl::kNormalFromCenter:
        miscFlags |= plParticleEmitter::kNormalFromCenter;
        break;
    case plParticleMtl::kNormalVelUpVel:
        miscFlags |= plParticleEmitter::kNormalVelUpVel;
        break;
    }

    switch(fUserInput.fOrientation)
    {
    case plParticleMtl::kOrientVelocity:
        miscFlags |= plParticleEmitter::kOrientationVelocityBased;
        break;
    case plParticleMtl::kOrientUp:
        miscFlags |= plParticleEmitter::kOrientationUp;
        break;
    case plParticleMtl::kOrientVelStretch:
        miscFlags |= plParticleEmitter::kOrientationVelocityStretch;
        break;
    case plParticleMtl::kOrientVelFlow:
        miscFlags |= plParticleEmitter::kOrientationVelocityFlow;
        break;
    }
    
    if (fUserInput.fGenType == kGenOnePerVertex &&
        (miscFlags & plParticleEmitter::kOrientationVelocityMask))
    {
        char text[256];
        sprintf(text, "This particle system has an orientation that's based on velocity "
                      "(see the Particle Material), which doesn't work with OnePerVertex "
                      "generation. No particles from this system will be visible.");

        plConvert &convert = plConvert::Instance();
        if (pErrMsg->Set(!(convert.fWarned & plConvert::kWarnedParticleVelAndOnePer), node->GetName(), text).CheckAskOrCancel())
        {
            convert.fWarned |= plConvert::kWarnedParticleVelAndOnePer;
        }
        pErrMsg->Set(false);
    }
    if( maxEmitters > 1 )
        miscFlags |= plParticleEmitter::kOnReserve;

    sys->AddEmitter( maxTotalParticles, generator, miscFlags );
    sys->SetGravity(gravity);
    sys->SetDrag(drag);
    sys->SetWindMult(windMult);
    sys->SetPreSim(fUserInput.fPreSim);

    // Finally, any attached effects.
    for (i = 0; i < node->NumAttachedComponents(); i++)
    {
        plComponentBase *comp = node->GetAttachedComponent(i);
        if (plParticleEffectComponent::IsParticleEffectComponent(comp))
            ((plParticleEffectComponent *)comp)->AddToParticleSystem(sys, node);
        if (comp->ClassID() == LIGHTGRP_COMP_CID)
            IHandleLights((plLightGrpComponent*)comp, sys);
    }
    
    if (fCompPB->GetInt(ParamID(kFollowSystem)))
    {
        plParticleFollowSystemEffect *effect = new plParticleFollowSystemEffect;
        hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), effect, node->GetLocation(), node->GetLoadMask());
        hsgResMgr::ResMgr()->AddViaNotify( effect->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, plParticleSystem::kEffectMisc ), plRefFlags::kActiveRef );
    }

    return true;
}

void plParticleCoreComponent::IHandleLights(plLightGrpComponent* liGrp, plParticleSystem* sys)
{
    const hsTArray<plLightInfo*>& liInfo = liGrp->GetLightInfos();
    int i;
    for( i = 0; i < liInfo.GetCount(); i++ )
    {
        sys->AddLight(liInfo[i]->GetKey());
    }
}

hsBool plParticleCoreComponent::AddToAnim(plAGAnim *anim, plMaxNode *node)
{
    hsBool result = false;
    plController *ctl;
    hsControlConverter& cc = hsControlConverter::Instance();

    float start, end;
    if (!strcmp(anim->GetName(), ENTIRE_ANIMATION_NAME))
    {
        start = end = -1;
    }
    else
    {
        start = anim->GetStart();
        end = anim->GetEnd();
    }

    if (fCompPB->GetInt(kGenType) != kGenOnePerVertex)
    {
        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kLifeMin)), node, start, end);
        if (ctl != nil)
        {
            plParticleLifeMinApplicator *app = new plParticleLifeMinApplicator();
            app->SetChannelName(node->GetName());
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }

        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kLifeMax)), node, start, end);
        if (ctl != nil)
        {
            plParticleLifeMaxApplicator *app = new plParticleLifeMaxApplicator();
            app->SetChannelName(node->GetName());
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }

        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kPPS)), node, start, end);
        if (ctl != nil)
        {
            plParticlePPSApplicator *app = new plParticlePPSApplicator();
            app->SetChannelName(node->GetName());
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }

        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kConeAngle)), node, start, end);
        if (ctl != nil)
        {
            plParticleAngleApplicator *app = new plParticleAngleApplicator();
            app->SetChannelName(node->GetName());
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }

        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kVelocityMin)), node, start, end);
        if (ctl != nil)
        {
            plParticleVelMinApplicator *app = new plParticleVelMinApplicator();
            app->SetChannelName(node->GetName());
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }

        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kVelocityMax)), node, start, end);
        if (ctl != nil)
        {
            plParticleVelMaxApplicator *app = new plParticleVelMaxApplicator();
            app->SetChannelName(node->GetName());
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }
        
        /*
        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kGravity)), node, start, end);
        if (ctl != nil)
        {
            plParticleGravityApplicator *app = new plParticleGravityApplicator();
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }

        ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kDrag)), node, start, end);
        if (ctl != nil)
        {
            plParticleDragApplicator *app = new plParticleDragApplicator();
            plAnimComponentBase::SetupCtl(anim, ctl, app, node);
            result = true;      
        }
        */
    }

    ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kScaleMin)), node, start, end);
    if (ctl != nil)
    {
        plParticleScaleMinApplicator *app = new plParticleScaleMinApplicator();
        app->SetChannelName(node->GetName());
        plAnimComponentBase::SetupCtl(anim, ctl, app, node);
        result = true;      
    }

    ctl = cc.MakeScalarController(GetParamBlock2Controller(fCompPB, ParamID(kScaleMax)), node, start, end);
    if (ctl != nil)
    {
        plParticleScaleMaxApplicator *app = new plParticleScaleMaxApplicator();
        app->SetChannelName(node->GetName());
        plAnimComponentBase::SetupCtl(anim, ctl, app, node);
        result = true;      
    }

    return result;
}

void plParticleCoreComponent::SetParticleStats(plParticleMtl *mtl)
{
    IParamBlock2 *pb = mtl->GetParamBlockByID(plParticleMtl::kBlkBasic);
    fUserInput.fHSize = pb->GetFloat(plParticleMtl::kWidth);
    fUserInput.fVSize = pb->GetFloat(plParticleMtl::kHeight);
    fUserInput.fXTiles = pb->GetInt(plParticleMtl::kXTiles);
    fUserInput.fYTiles = pb->GetInt(plParticleMtl::kYTiles);
    fUserInput.fNormal = pb->GetInt(plParticleMtl::kNormal);
    fUserInput.fOrientation = pb->GetInt(plParticleMtl::kOrientation);
}

class ParticleCompDlgProc : public ParamMap2UserDlgProc
{
protected:
    void EnableDynGenParams(IParamMap2 *pm, bool enabled)
    {
        pm->Enable(plParticleComponent::kConeAngle, enabled);
        pm->Enable(plParticleComponent::kVelocityMin, enabled);
        pm->Enable(plParticleComponent::kVelocityMax, enabled);
        pm->Enable(plParticleComponent::kLifeMin, enabled);
        pm->Enable(plParticleComponent::kLifeMax, enabled);
        pm->Enable(plParticleComponent::kImmortal, enabled);
        pm->Enable(plParticleComponent::kPPS, enabled);
        pm->Enable(plParticleComponent::kGravity, enabled);
        pm->Enable(plParticleComponent::kPreSim, enabled);
        pm->Enable(plParticleComponent::kDrag, enabled);
    }

public:
    ParticleCompDlgProc() {}
    ~ParticleCompDlgProc() {}

    void IValidateSpinners(TimeValue t, IParamBlock2 *pb, IParamMap2 *map, uint32_t id)
    {
        uint32_t minIndex, maxIndex;
        hsBool adjustMin;
        switch(id)
        {
        case IDC_COMP_PARTICLE_VELMIN:
        case IDC_COMP_PARTICLE_VELMIN_SPIN:
            minIndex = plParticleCoreComponent::kVelocityMin; maxIndex = plParticleCoreComponent::kVelocityMax; adjustMin = false;
            break;
        case IDC_COMP_PARTICLE_VELMAX:
        case IDC_COMP_PARTICLE_VELMAX_SPIN:
            minIndex = plParticleCoreComponent::kVelocityMin; maxIndex = plParticleCoreComponent::kVelocityMax; adjustMin = true;
            break;
        case IDC_COMP_PARTICLE_LIFEMIN:
        case IDC_COMP_PARTICLE_LIFEMIN_SPIN:
            minIndex = plParticleCoreComponent::kLifeMin; maxIndex = plParticleCoreComponent::kLifeMax; adjustMin = false;
            break;
        case IDC_COMP_PARTICLE_LIFEMAX:
        case IDC_COMP_PARTICLE_LIFEMAX_SPIN:
            minIndex = plParticleCoreComponent::kLifeMin; maxIndex = plParticleCoreComponent::kLifeMax; adjustMin = true;
            break;
        default:
            return;
        }

        float min, max;
        min = pb->GetFloat(minIndex, t);
        max = pb->GetFloat(maxIndex, t);

        if (min > max)
        {
            if (adjustMin)
                pb->SetValue(minIndex, t, max);
            else
                pb->SetValue(maxIndex, t, min);

            map->Invalidate(minIndex);
            map->Invalidate(maxIndex);
        }
    }

    virtual BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
    {
        int id = LOWORD(wParam);
        int code = HIWORD(wParam);

        IParamBlock2 *pb = map->GetParamBlock();
        HWND cbox = NULL;

        int selection;
        switch (msg)
        {
        case WM_INITDIALOG:
            int j;
            for (j = 0; j < plParticleCoreComponent::kGenNumOptions; j++)
            {
                cbox = GetDlgItem(hWnd, IDC_GEN_TYPE);
                SendMessage(cbox, CB_ADDSTRING, 0, (LPARAM)plParticleCoreComponent::GenStrings[j]);
            }
            selection = pb->GetInt(plParticleCoreComponent::kGenType);
            SendMessage(cbox, CB_SETCURSEL, selection, 0);
            EnableDynGenParams(map, selection != plParticleCoreComponent::kGenOnePerVertex);

            CheckDlgButton(hWnd, IDC_TRACKVIEW_SHOW, plParticleComponent::fAllowUnhide ? BST_CHECKED : BST_UNCHECKED);
            return TRUE;

        case WM_COMMAND:  
            if (id == IDC_GEN_TYPE)
            {
                selection = SendMessage(GetDlgItem(hWnd, id), CB_GETCURSEL, 0, 0);
                pb->SetValue(plParticleCoreComponent::kGenType, t, selection);
                EnableDynGenParams(map, selection != plParticleCoreComponent::kGenOnePerVertex);
                return TRUE;
            }
            else if (id == IDC_COMP_PARTICLE_VELMIN || id == IDC_COMP_PARTICLE_VELMAX ||
                id == IDC_COMP_PARTICLE_LIFEMIN || id == IDC_COMP_PARTICLE_LIFEMAX)
            {
                IValidateSpinners(t, pb, map, id);
                return TRUE;
            }
            else if (id == IDC_TRACKVIEW_SHOW && code == BN_CLICKED)
            {
                plParticleComponent::fAllowUnhide = (IsDlgButtonChecked(hWnd, IDC_TRACKVIEW_SHOW) == BST_CHECKED);
                plComponentShow::Update();
                return TRUE;
            }
            break;
        case CC_SPINNER_CHANGE:
            if (id == IDC_COMP_PARTICLE_VELMIN_SPIN || id == IDC_COMP_PARTICLE_VELMAX_SPIN ||
                id == IDC_COMP_PARTICLE_LIFEMIN_SPIN || id == IDC_COMP_PARTICLE_LIFEMAX_SPIN)
            {
                IValidateSpinners(t, pb, map, id);
                return TRUE;
            }
            break;
        }
        return FALSE;
    }
    virtual void DeleteThis() {}
};
static ParticleCompDlgProc gParticleCompDlgProc;

CLASS_DESC(plParticleComponent, gParticleDesc, "Particle System",  "ParticleSystem", COMP_TYPE_PARTICLE, PARTICLE_SYSTEM_COMPONENT_CLASS_ID)

ParamBlockDesc2 gParticleBk
(   

    plComponent::kBlkComp, _T("Particle"), 0, &gParticleDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    //Roll out
    IDD_COMP_PARTICLE, IDS_COMP_PARTICLE_ROLL, 0, 0, &gParticleCompDlgProc,

    //Particle Properties....

    plParticleCoreComponent::kGenType,      _T("Generation"),   TYPE_INT, 0, 0,
        p_default, 0,
        end,

    plParticleCoreComponent::kConeAngle,        _T("ConeAngle"),    TYPE_FLOAT,     P_ANIMATABLE, IDS_PARTICLE_CONE_ANGLE,  
        p_default, 45.0,
        p_range, 0.0, 180.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_CONE, IDC_COMP_PARTICLE_CONE_SPIN, 1.0,
        end,

    plParticleCoreComponent::kVelocityMin,  _T("VelocityMin"),  TYPE_FLOAT,     P_ANIMATABLE, IDS_PARTICLE_VELOCITY_MIN,    
        p_default, 50.0,
        p_range, 0.0, 500.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_VELMIN, IDC_COMP_PARTICLE_VELMIN_SPIN, 1.0,
        end,

    plParticleCoreComponent::kVelocityMax,  _T("VelocityMax"),  TYPE_FLOAT,     P_ANIMATABLE, IDS_PARTICLE_VELOCITY_MAX,    
        p_default, 50.0,
        p_range, 0.0, 500.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_VELMAX, IDC_COMP_PARTICLE_VELMAX_SPIN, 1.0,
        end,

    plParticleCoreComponent::kLifeMin,      _T("LifeMin"),      TYPE_FLOAT,     P_ANIMATABLE, IDS_PARTICLE_LIFE_MIN,    
        p_default, 10.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_LIFEMIN, IDC_COMP_PARTICLE_LIFEMIN_SPIN, 1.0,
        end,

    plParticleCoreComponent::kLifeMax,      _T("LifeMax"),      TYPE_FLOAT,     P_ANIMATABLE, IDS_PARTICLE_LIFE_MAX,    
        p_default, 5.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_LIFEMAX, IDC_COMP_PARTICLE_LIFEMAX_SPIN, 1.0,
        end,

    plParticleCoreComponent::kImmortal, _T("Immortal"),     TYPE_BOOL,  0, 0,
        p_default, FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_PARTICLE_NODIE,
        end,

    plParticleCoreComponent::kPPS,  _T("PPS"),  TYPE_FLOAT,     P_ANIMATABLE, IDS_PARTICLE_PPS, 
        p_default, 20.0,
        p_range, 0.0, 5000.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_PPS, IDC_COMP_PARTICLE_PPS_SPIN, 1.0,
        end,

    plParticleCoreComponent::kScaleMin, _T("ScaleMin"), TYPE_INT,   P_ANIMATABLE, IDS_PARTICLE_SCALE_MIN,   
        p_default, 100,
        p_range, 1, 1000,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_INT,   
        IDC_COMP_PARTICLE_SCALEMIN, IDC_COMP_PARTICLE_SCALEMIN_SPIN, 1.0,
        end,

    plParticleCoreComponent::kScaleMax, _T("ScaleMax"), TYPE_INT,   P_ANIMATABLE, IDS_PARTICLE_SCALE_MAX,   
        p_default, 100,
        p_range, 1, 1000,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_INT,   
        IDC_COMP_PARTICLE_SCALEMAX, IDC_COMP_PARTICLE_SCALEMAX_SPIN, 1.0,
        end,

    plParticleCoreComponent::kGravity,  _T("Gravity"),  TYPE_INT,   0, 0,   
        p_default, 100,
        p_range, -100, 100,
        p_ui,   TYPE_SPINNER,   EDITTYPE_INT,   
        IDC_COMP_PARTICLE_GRAVITY, IDC_COMP_PARTICLE_GRAVITY_SPIN, 1.0,
        end,

    plParticleCoreComponent::kDrag,     _T("Drag"),     TYPE_INT,   0, 0,   
        p_default, 0,
        p_range, 0, 1000,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_INT,   
        IDC_COMP_PARTICLE_DRAG, IDC_COMP_PARTICLE_DRAG_SPIN, 1.0,
        end,

    plParticleCoreComponent::kPreSim,   _T("PreSim"),   TYPE_INT,   0, 0,   
        p_default, 0,
        p_range, 0, 100,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_INT,   
        IDC_COMP_PARTICLE_PRESIM, IDC_COMP_PARTICLE_PRESIM_SPIN, 1.0,
        end,

    plParticleCoreComponent::kWindMult,     _T("WindMult"),     TYPE_INT,   0, 0,   
        p_default, 100,
        p_range, 0, 1000,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_INT,   
        IDC_COMP_PARTICLE_WIND_MULT, IDC_COMP_PARTICLE_WIND_MULT_SPIN, 1.0,
        end,

    plParticleCoreComponent::kMassRange,        _T("MassRange"),        TYPE_FLOAT,     0, 0,   
        p_default, 0.f,
        p_range, 0.f, 1000.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_MASS_RANGE, IDC_COMP_PARTICLE_MASS_RANGE_SPIN, 1.0,
        end,

    plParticleCoreComponent::kRotRange,     _T("RotRange"),     TYPE_FLOAT,     0, 0,   
        p_default, 0.f,
        p_range, 0.f, 180.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_ROT_RANGE, IDC_COMP_PARTICLE_ROT_RANGE_SPIN, 1.0,
        end,
        
    plParticleCoreComponent::kFollowSystem, _T("FollowSystem"),     TYPE_BOOL, 0, 0, 
        p_default, FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_PARTICLE_FOLLOW_SYSTEM,
        end,        

    end
);

bool plParticleComponent::fAllowUnhide = false;

plParticleComponent::plParticleComponent()
:   fEmitterReserve(0)
{
    fClassDesc = &gParticleDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

// Gets values from the ParamBlock and passes them to the Convert
hsBool plParticleComponent::GetParamVals(plMaxNode *pNode)
{
    fUserInput.fGenType         = fCompPB->GetInt(kGenType);
    fUserInput.fConeAngle       = fCompPB->GetFloat(kConeAngle);
    fUserInput.fVelocityMin     = fCompPB->GetFloat(kVelocityMin);
    fUserInput.fVelocityMax     = fCompPB->GetFloat(kVelocityMax);
    fUserInput.fLifeMin         = fCompPB->GetFloat(kLifeMin);
    fUserInput.fLifeMax         = fCompPB->GetFloat(kLifeMax);
    fUserInput.fImmortal        = fCompPB->GetInt(kImmortal);
    fUserInput.fPPS             = fCompPB->GetFloat(kPPS);
    fUserInput.fScaleMin        = fCompPB->GetInt(kScaleMin);
    fUserInput.fScaleMax        = fCompPB->GetInt(kScaleMax);

    fUserInput.fGravity         = fCompPB->GetInt(kGravity);
    fUserInput.fDrag            = fCompPB->GetInt(kDrag);
    fUserInput.fWindMult        = fCompPB->GetInt(kWindMult);
    fUserInput.fMassRange       = fCompPB->GetFloat(kMassRange);
    fUserInput.fPreSim          = fCompPB->GetInt(kPreSim);
    fUserInput.fRotRange        = fCompPB->GetFloat(kRotRange);

    return true;
}

//////////////////////////////////////////////////////////////////////////////////////////
//
// Particle Effects Base class

// Make sure any new Effect you add is accounted for here, or it won't get converted.
hsBool plParticleEffectComponent::IsParticleEffectComponent(plComponentBase *comp)
{
    if (comp->ClassID() == PARTICLE_FADE_COMPONENT_CLASS_ID ||
        comp->ClassID() == PARTICLE_VOLUME_COMPONENT_CLASS_ID ||
        comp->ClassID() == PARTICLE_WIND_COMPONENT_CLASS_ID ||
        comp->ClassID() == PARTICLE_UNIWIND_COMPONENT_CLASS_ID ||
        comp->ClassID() == PARTICLE_FLOCK_COMPONENT_CLASS_ID)
        return true;

    return false;
}

hsBool plParticleEffectComponent::SetupProperties(plMaxNode *node, plErrorMsg *pErrMsg)
{
    fEffect = nil;
    return true;
}

hsBool plParticleEffectComponent::PreConvert(plMaxNode *node, plErrorMsg *pErrMsg)
{
    hsBool valid = plParticleCoreComponent::NodeHasSystem(node);
    if (!valid)
    {
        pErrMsg->Set(true, node->GetName(), "Node has a particle effect component, "
                     "but no particle system to apply it to. Ignoring component.").Show();
        pErrMsg->Set(false);
    }

    return valid;
}

//////////////////////////////////////////////////////////////////////////////////////////
//
// plParticleFadeComponent

void plParticleFadeComponent::AddToParticleSystem(plParticleSystem *sys, plMaxNode *node)
{
    plParticleFadeVolumeEffect *effect = nil;
    if( !fEffect )
    {
        effect = new plParticleFadeVolumeEffect();
        hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), effect, node->GetLocation(), node->GetLoadMask());
        effect->fLength = (float)fCompPB->GetInt(kFadeDistance);
        if (fCompPB->GetInt(kFadeZ))
            effect->fIgnoreZ = false;
        
        fEffect = effect;
    }
    else
    {
        effect = plParticleFadeVolumeEffect::ConvertNoRef(fEffect);
    }
    hsAssert(effect, "Our effect pointer was wrong type?");
    hsgResMgr::ResMgr()->AddViaNotify( effect->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, plParticleSystem::kEffectMisc ), plRefFlags::kActiveRef );
}

CLASS_DESC(plParticleFadeComponent, gParticleFadeDesc, "Fade Volume Effect",  "Fade Volume Effect", COMP_TYPE_PARTICLE, PARTICLE_FADE_COMPONENT_CLASS_ID)

ParamBlockDesc2 gParticleFadeBk
(   

    plComponent::kBlkComp, _T("ParticleFade"), 0, &gParticleFadeDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    //Roll out
    IDD_COMP_PARTICLE_FADE, IDS_COMP_PARTICLE_FADE_ROLL, 0, 0, NULL,

    plParticleFadeComponent::kFadeDistance, _T("FadeDistance"), TYPE_INT,   P_ANIMATABLE, 0,    
        p_default, 100,
        p_range, 0, 10000,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_INT,   
        IDC_COMP_PARTICLE_FADE_DIST, IDC_COMP_PARTICLE_FADE_DIST_SPIN, 1.0,
        end,

    plParticleFadeComponent::kFadeZ,        _T("FadeInZ"),      TYPE_BOOL,  P_ANIMATABLE, 0,    
        p_default, FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_PARTICLE_FADEZ,
        end,

    end
);

plParticleFadeComponent::plParticleFadeComponent()
{
    fClassDesc = &gParticleFadeDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

////////////////////////////////////////////////////////////////////////////
//
// Convex Volume Component

void plParticleVolumeComponent::CollectNonDrawables(INodeTab& nonDrawables)
{
    INode* source = fCompPB->GetINode(kSourceNode);
    if( source )
        nonDrawables.Append(1, &source);
}

hsBool plParticleVolumeComponent::PreConvert(plMaxNode *pNode, plErrorMsg *pErrMsg)
{
    if (!plParticleEffectComponent::PreConvert(pNode, pErrMsg))
        return false;

    fBound = nil;

    plMaxNode *source = (plMaxNode *)fCompPB->GetINode(kSourceNode);
    if (source == nil || !source->CanConvert())
    {
        pErrMsg->Set(true, pNode->GetName(), "Particle Convex Volume component has not been assigned a "
                     "node to build itself from or Volume has Ignore component on it.. Ignoring component.").Show();
        pErrMsg->Set(false);
        return false; // No source selected
    }

    source->SetForceLocal(true);
    source->SetDrawable(false);
    source->SetParticleRelated(true);

    return true;
}

void plParticleVolumeComponent::BuildVolume(plMaxNode *node)
{
    if (fBound != nil)
        return; // already converted it

    fBound = new plBoundInterface;
    hsgResMgr::ResMgr()->NewKey(node->GetName(), fBound, node->GetLocation(), node->GetLoadMask());
    fBound->Init(plMeshConverter::Instance().CreateConvexVolume(node));
    hsgResMgr::ResMgr()->AddViaNotify(fBound->GetKey(), new plObjRefMsg(node->GetKey(), plRefMsg::kOnCreate, -1, plObjRefMsg::kInterface), plRefFlags::kActiveRef);
}


void plParticleVolumeComponent::AddToParticleSystem(plParticleSystem *sys, plMaxNode *node)
{
    plParticleCollisionEffect *effect = nil;
    if( !fEffect )
    {
        plMaxNode *source = (plMaxNode *)fCompPB->GetINode(kSourceNode);

        if (source == nil || !source->CanConvert())
            return; // No source selected, user has already been warned.

        BuildVolume(source);
        switch( fCompPB->GetInt(kOnImpact) )
        {
        default:
        case kImpDefault:
            effect = new plParticleCollisionEffectBeat();
            break;
        case kImpDie:
            effect = new plParticleCollisionEffectDie();
            break;
        case kImpBounce:
            {
                plParticleCollisionEffectBounce* bnc = new plParticleCollisionEffectBounce();
                bnc->SetBounce(fCompPB->GetFloat(kBounceAmt) * 1.e-2f);
                bnc->SetFriction(fCompPB->GetFloat(kFrictionAmt) * 1.e-2f);
                effect = bnc;
            }
            break;
        };

        hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), effect, node->GetLocation(), node->GetLoadMask());    
        plSceneObject *sObj = source->GetSceneObject();
        hsgResMgr::ResMgr()->AddViaNotify( sObj->GetKey(), new plGenRefMsg( effect->GetKey(), plRefMsg::kOnCreate, 0, 0 ), plRefFlags::kPassiveRef );

        fEffect = effect;
    }
    else
    {
        effect = plParticleCollisionEffect::ConvertNoRef(fEffect);
    }
    hsAssert(effect, "Our effect pointer was wrong type?");
    hsgResMgr::ResMgr()->AddViaNotify( effect->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, plParticleSystem::kEffectConstraint ), plRefFlags::kActiveRef );
}

CLASS_DESC(plParticleVolumeComponent, gParticleVolumeDesc, "Collision Volume Effect",  "Collision Volume Effect", COMP_TYPE_PARTICLE, PARTICLE_VOLUME_COMPONENT_CLASS_ID)

ParamBlockDesc2 gParticleVolumeBk
(   
    plComponent::kBlkComp, _T("ParticleVolume"), 0, &gParticleVolumeDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    //Roll out
    IDD_COMP_PARTICLE_VOLUME, IDS_COMP_PARTICLE_VOLUME_ROLL, 0, 0, NULL,

    plParticleVolumeComponent::kSourceNode, _T("SourceINode"),  TYPE_INODE,     0, 0,
        p_ui,   TYPE_PICKNODEBUTTON, IDC_COMP_PARTICLE_VOLUME_NODE,
        p_sclassID, GEOMOBJECT_CLASS_ID,
        //p_prompt, IDS_COMP_ONESHOT_STARTS,
        //p_accessor, &gOneShotAccessor,
        end,

    plParticleVolumeComponent::kOnImpact, _T("OnImpact"),       TYPE_INT,       0, 0,
        p_ui,       TYPE_RADIO, 3,  IDC_COMP_PARTICLE_VOL_DEFAULT,                  IDC_COMP_PARTICLE_VOL_DIE,              IDC_COMP_PARTICLE_VOL_BOUNCE,   
        p_vals,                     plParticleVolumeComponent::kImpDefault, plParticleVolumeComponent::kImpDie, plParticleVolumeComponent::kImpBounce,      
        p_default, plParticleVolumeComponent::kImpDefault,
        end,

    plParticleVolumeComponent::kBounceAmt, _T("BounceAmt"), TYPE_FLOAT,     0, 0,   
        p_default, 100.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_VOL_BOUNCEAMT, IDC_COMP_PARTICLE_VOL_BOUNCEAMT_SPIN, 1.0,
        end,    
    
    plParticleVolumeComponent::kFrictionAmt, _T("FrictionAmt"), TYPE_FLOAT,     0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_VOL_FRICTIONAMT, IDC_COMP_PARTICLE_VOL_FRICTIONAMT_SPIN, 1.0,
        end,    
    
    end
);

plParticleVolumeComponent::plParticleVolumeComponent()
{
    fClassDesc = &gParticleVolumeDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

//////////////////////////////////////////////////////////////////////////////////////////
//
// plParticleWindComponent

static hsVector3 IGetRefDir(plMaxNode* node, INode* refNode, float clampAngDeg)
{
    clampAngDeg *= 0.5f;
    float vecLen = 100.f;
    if( clampAngDeg > 1.f )
    {
        float rads = hsDegreesToRadians(clampAngDeg);
        float sinAng = sinf(rads);

        hsAssert(sinAng > 0.01, "Trig confusion?");

#if 0 
        float cosAng = cosf(rads);
        if( cosAng < 0.01f )
            vecLen = 0;
        else
            vecLen = cosAng / sinAng;
#else
        vecLen = 1.f / sinAng;
#endif

    }
    if( !refNode )
        refNode = node;

    Matrix3 nodeTM = refNode->GetNodeTM(TimeValue(0));
    Point3 dir = nodeTM.GetRow(1);
    dir = FNormalize(dir);

    hsVector3 refDir(dir.x * vecLen, dir.y * vecLen, dir.z * vecLen);

    return refDir;
}


void plParticleWindComponent::AddToParticleSystem(plParticleSystem *sys, plMaxNode *node)
{
    plParticleLocalWind* effect = nil;
    if( !fEffect )
    {
        effect = new plParticleLocalWind();
        effect->SetScale(hsVector3(fCompPB->GetFloat(kScaleX), fCompPB->GetFloat(kScaleY), fCompPB->GetFloat(kScaleZ)));
        effect->SetSpeed(fCompPB->GetFloat(kSpeed));

        hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), effect, node->GetLocation(), node->GetLoadMask());

        effect->SetStrength(fCompPB->GetFloat(kStrength));
        effect->SetSwirl(fCompPB->GetFloat(kSwirl) * 1.e-2f);
        effect->SetHorizontal(fCompPB->GetInt(kHorizontal));
        effect->SetConstancy(fCompPB->GetFloat(kConstancy) * 1.e-2f);

        effect->SetRefDirection(IGetRefDir(node, fCompPB->GetINode(kRefObject), fCompPB->GetFloat(kClampAngle)));

        fEffect = effect;
    }
    else
    {
        effect = plParticleLocalWind::ConvertNoRef(fEffect);
    }
    hsAssert(effect, "Our effect pointer was wrong type?");
    hsgResMgr::ResMgr()->AddViaNotify( effect->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, plParticleSystem::kEffectForce ), plRefFlags::kActiveRef );
}

CLASS_DESC(plParticleWindComponent, gParticleWindDesc, "Wind Effect",  "WindEffect", COMP_TYPE_PARTICLE, PARTICLE_WIND_COMPONENT_CLASS_ID)

ParamBlockDesc2 gParticleWindBk
(   

    plComponent::kBlkComp, _T("ParticleWind"), 0, &gParticleWindDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    //Roll out
    IDD_COMP_PARTICLE_WIND, IDS_COMP_PARTICLE_WIND, 0, 0, NULL,

    plParticleWindComponent::kScaleX,   _T("ScaleX"),   TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 25.f,
        p_range, 0.f, 1000.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_SCALEX, IDC_COMP_PARTICLE_WIND_SCALEX_SPIN, 1.0,
        end,

    plParticleWindComponent::kScaleY,   _T("ScaleY"),   TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 25.f,
        p_range, 0.f, 1000.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_SCALEY, IDC_COMP_PARTICLE_WIND_SCALEY_SPIN, 1.0,
        end,

    plParticleWindComponent::kScaleZ,   _T("ScaleZ"),   TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 0.f,
        p_range, 0.f, 1000.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_SCALEZ, IDC_COMP_PARTICLE_WIND_SCALEZ_SPIN, 1.0,
        end,

    plParticleWindComponent::kSpeed,    _T("Speed"),    TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 32.f,
        p_range, -100.f, 100.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_FLOAT, 
        IDC_COMP_PARTICLE_WIND_SPEED, IDC_COMP_PARTICLE_WIND_SPEED_SPIN, 1.0,
        end,

    plParticleWindComponent::kStrength, _T("Strength"), TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 30.f,
        p_range, 0.f, 100.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_STRENGTH, IDC_COMP_PARTICLE_WIND_STRENGTH_SPIN, 1.0,
        end,

    plParticleWindComponent::kConstancy,    _T("Constancy"),    TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 0.f,
        p_range, -75.f, 300.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_FLOAT, 
        IDC_COMP_PARTICLE_WIND_CONSTANCY, IDC_COMP_PARTICLE_WIND_CONSTANCY_SPIN, 1.0,
        end,

    plParticleWindComponent::kSwirl,    _T("Swirl"),    TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 100.f,
        p_range, 0.f, 100.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_SWIRL, IDC_COMP_PARTICLE_WIND_SWIRL_SPIN, 1.0,
        end,

    plParticleWindComponent::kHorizontal, _T("Horizontal"),     TYPE_BOOL, 0, 0, 
        p_default, FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_PARTICLE_WIND_HORIZONTAL,
        end,

    plParticleWindComponent::kLocalize, _T("Localize"),     TYPE_BOOL, 0, 0, 
        p_default, TRUE,
        end,

    plParticleWindComponent::kClampAngle, _T("ClampAngle"), TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 180.f,
        p_range, 0.f, 180.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_CLAMPANG, IDC_COMP_PARTICLE_WIND_CLAMPANG_SPIN, 1.0,
        end,

    plParticleWindComponent::kRefObject, _T("RefObject"),   TYPE_INODE,     0, 0,
        p_ui,   TYPE_PICKNODEBUTTON, IDC_COMP_PARTICLE_WIND_REFOBJECT,
        p_prompt, IDS_COMP_CHOOSE_OBJECT,
        end,

    end
);

plParticleWindComponent::plParticleWindComponent()
{
    fClassDesc = &gParticleWindDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

//////////////////////////////////////////////////////////////////////////////////////////
//
// plParticleUniWindComponent

void plParticleUniWindComponent::AddToParticleSystem(plParticleSystem *sys, plMaxNode *node)
{
    plParticleUniformWind* effect = nil;
    if( !fEffect )
    {
        effect = new plParticleUniformWind();
        hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), effect, node->GetLocation(), node->GetLoadMask());

        effect->SetStrength(fCompPB->GetFloat(kStrength));
        effect->SetSwirl(fCompPB->GetFloat(kSwirl) * 1.e-2f);
        effect->SetHorizontal(fCompPB->GetInt(kHorizontal));
        effect->SetConstancy(fCompPB->GetFloat(kConstancy) * 1.e-2f);

        effect->SetFrequencyRange(fCompPB->GetFloat(kMinSecs), fCompPB->GetFloat(kMaxSecs));
        effect->SetFrequencyRate(fCompPB->GetFloat(kRate));

        effect->SetRefDirection(IGetRefDir(node, fCompPB->GetINode(kRefObject), fCompPB->GetFloat(kClampAngle)));

        fEffect = effect;
    }
    else
    {
        effect = plParticleUniformWind::ConvertNoRef(fEffect);
    }
    hsAssert(effect, "Our effect pointer was wrong type?");
    hsgResMgr::ResMgr()->AddViaNotify( effect->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, plParticleSystem::kEffectForce ), plRefFlags::kActiveRef );
}

CLASS_DESC(plParticleUniWindComponent, gParticleUniWindDesc, "Uniform Wind",  "UniWind", COMP_TYPE_PARTICLE, PARTICLE_UNIWIND_COMPONENT_CLASS_ID)

ParamBlockDesc2 gParticleUniWindBk
(   

    plComponent::kBlkComp, _T("ParticleUniWind"), 0, &gParticleUniWindDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    //Roll out
    IDD_COMP_PARTICLE_UNIWIND, IDS_COMP_PARTICLE_UNIWIND, 0, 0, NULL,

    plParticleUniWindComponent::kStrength,  _T("Strength"), TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 30.f,
        p_range, 0.f, 100.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_STRENGTH, IDC_COMP_PARTICLE_WIND_STRENGTH_SPIN, 1.0,
        end,

    plParticleUniWindComponent::kConstancy, _T("Constancy"),    TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 0.f,
        p_range, -75.f, 300.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_FLOAT, 
        IDC_COMP_PARTICLE_WIND_CONSTANCY, IDC_COMP_PARTICLE_WIND_CONSTANCY_SPIN, 1.0,
        end,

    plParticleUniWindComponent::kSwirl, _T("Swirl"),    TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 100.f,
        p_range, 0.f, 100.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_SWIRL, IDC_COMP_PARTICLE_WIND_SWIRL_SPIN, 1.0,
        end,

    plParticleUniWindComponent::kHorizontal, _T("Horizontal"),      TYPE_BOOL, 0, 0,  
        p_default, FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_PARTICLE_WIND_HORIZONTAL,
        end,

    plParticleUniWindComponent::kMinSecs,   _T("MinSecs"),  TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 1.f,
        p_range, 0.1f, 20.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_MINSECS, IDC_COMP_PARTICLE_WIND_MINSECS_SPIN, 1.0,
        end,

    plParticleUniWindComponent::kMaxSecs,   _T("MaxSecs"),  TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 10.f,
        p_range, 0.1f, 30.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_MAXSECS, IDC_COMP_PARTICLE_WIND_MAXSECS_SPIN, 1.0,
        end,

    plParticleUniWindComponent::kRate,  _T("Rate"), TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 10.f,
        p_range, 0.1f, 50.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_RATE, IDC_COMP_PARTICLE_WIND_RATE_SPIN, 1.0,
        end,

    plParticleUniWindComponent::kClampAngle, _T("ClampAngle"),  TYPE_FLOAT,     P_ANIMATABLE, 0,    
        p_default, 180.f,
        p_range, 0.f, 180.f,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_PARTICLE_WIND_CLAMPANG2, IDC_COMP_PARTICLE_WIND_CLAMPANG_SPIN2, 1.0,
        end,

    plParticleUniWindComponent::kRefObject, _T("RefObject"),    TYPE_INODE,     0, 0,
        p_ui,   TYPE_PICKNODEBUTTON, IDC_COMP_PARTICLE_WIND_REFOBJECT,
        p_prompt, IDS_COMP_CHOOSE_OBJECT,
        end,

    end
);

plParticleUniWindComponent::plParticleUniWindComponent()
{
    fClassDesc = &gParticleUniWindDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

//////////////////////////////////////////////////////////////////////////////////////////
//
// plParticleFlockComponent

class ParticleFlockEffectDlgProc : public ParamMap2UserDlgProc
{
public:
    ParticleFlockEffectDlgProc() {}
    ~ParticleFlockEffectDlgProc() {}

    void IValidateSpinners(TimeValue t, IParamBlock2 *pb, IParamMap2 *map, uint32_t id)
    {
        uint32_t minIndex, maxIndex;
        hsBool adjustMin;
        switch(id)
        {
        case IDC_FLOCK_GOAL_DIST:
        case IDC_FLOCK_GOAL_DIST_SPIN:
            minIndex = plParticleFlockComponent::kGoalDist; maxIndex = plParticleFlockComponent::kFullChaseDist; adjustMin = false;
            break;
        case IDC_FLOCK_FULL_CHASE_DIST:
        case IDC_FLOCK_FULL_CHASE_DIST_SPIN:
            minIndex = plParticleFlockComponent::kGoalDist; maxIndex = plParticleFlockComponent::kFullChaseDist; adjustMin = true;
            break;
        default:
            return;
        }

        float min, max;
        min = pb->GetFloat(minIndex, t);
        max = pb->GetFloat(maxIndex, t);

        if (min > max)
        {
            if (adjustMin)
                pb->SetValue(minIndex, t, max);
            else
                pb->SetValue(maxIndex, t, min);

            map->Invalidate(minIndex);
            map->Invalidate(maxIndex);
        }
    }

    BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
    {
        int id = LOWORD(wParam);

        IParamBlock2 *pb = map->GetParamBlock();

        switch (msg)
        {
        case WM_COMMAND:  
        case CC_SPINNER_CHANGE:
            IValidateSpinners(t, pb, map, id);
            return TRUE;
        }
        return FALSE;
    }
    void DeleteThis() {}
};
static ParticleFlockEffectDlgProc gParticleFlockEffectDlgProc;



void plParticleFlockComponent::AddToParticleSystem(plParticleSystem *sys, plMaxNode *node)
{
    plParticleFlockEffect* effect = nil;
    if( !fEffect )
    {
        effect = new plParticleFlockEffect();
        hsgResMgr::ResMgr()->NewKey(IGetUniqueName(node), effect, node->GetLocation(), node->GetLoadMask());

        hsPoint3 offset(fCompPB->GetFloat(ParamID(kOffsetX)),
                        fCompPB->GetFloat(ParamID(kOffsetY)),
                        fCompPB->GetFloat(ParamID(kOffsetZ)));
        effect->SetTargetOffset(offset);
        effect->SetInfluenceAvgRadius(fCompPB->GetFloat(ParamID(kInfAvgDist)));
        effect->SetInfluenceRepelRadius(fCompPB->GetFloat(ParamID(kInfRepDist)));

        float goalDist = fCompPB->GetFloat(ParamID(kGoalDist));
        float fcDist = fCompPB->GetFloat(ParamID(kFullChaseDist));   
        effect->SetGoalRadius(goalDist);
        effect->SetFullChaseRadius(goalDist > fcDist ? goalDist : fcDist); // Fix old data

        effect->SetConformStr(fCompPB->GetFloat(ParamID(kInfAvgStr)));
        effect->SetRepelStr(fCompPB->GetFloat(ParamID(kInfRepStr)));
        effect->SetGoalOrbitStr(fCompPB->GetFloat(ParamID(kGoalOrbitStr)));
        effect->SetGoalChaseStr(fCompPB->GetFloat(ParamID(kGoalChaseStr)));
        effect->SetMaxChaseSpeed(fCompPB->GetFloat(ParamID(kMaxChaseSpeed)));
        effect->SetMaxOrbitSpeed(fCompPB->GetFloat(ParamID(kMaxOrbitSpeed)));
        effect->SetMaxParticles(sys->GetMaxTotalParticles());

        fEffect = effect;
    }
    else
    {
        effect = plParticleFlockEffect::ConvertNoRef(fEffect);
    }
    hsAssert(effect, "Our effect pointer was wrong type?");
    hsgResMgr::ResMgr()->AddViaNotify( effect->GetKey(), new plGenRefMsg( sys->GetKey(), plRefMsg::kOnCreate, 0, plParticleSystem::kEffectForce ), plRefFlags::kActiveRef );
}

CLASS_DESC(plParticleFlockComponent, gParticleFlockDesc, "Particle Flock",  "Flock", COMP_TYPE_PARTICLE, PARTICLE_FLOCK_COMPONENT_CLASS_ID)

ParamBlockDesc2 gParticleFlockBk
(   
 
    plComponent::kBlkComp, _T("ParticleFlock"), 0, &gParticleFlockDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,
    
    //Roll out
    IDD_COMP_PARTICLE_FLOCK, IDS_COMP_PARTICLE_FLOCK, 0, 0, &gParticleFlockEffectDlgProc,
    
    plParticleFlockComponent::kOffsetX, _T("OffsetX"),  TYPE_FLOAT, 0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_TARGET_OFFSETX, IDC_FLOCK_TARGET_OFFSETX_SPIN, 1.0,
        end,
    
    plParticleFlockComponent::kOffsetY, _T("OffsetY"),  TYPE_FLOAT, 0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_TARGET_OFFSETY, IDC_FLOCK_TARGET_OFFSETY_SPIN, 1.0,
        end,

    plParticleFlockComponent::kOffsetZ, _T("OffsetZ"),  TYPE_FLOAT, 0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_TARGET_OFFSETZ, IDC_FLOCK_TARGET_OFFSETZ_SPIN, 1.0,
        end,

    plParticleFlockComponent::kInfAvgDist,  _T("InfAvgDist"),   TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_CONFORM_DIST, IDC_FLOCK_CONFORM_DIST_SPIN, 1.0,
        end,

    plParticleFlockComponent::kInfRepDist,  _T("InfRepDist"),   TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_REPEL_DIST, IDC_FLOCK_REPEL_DIST_SPIN, 1.0,
        end,

    plParticleFlockComponent::kGoalDist,    _T("GoalDist"), TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_GOAL_DIST, IDC_FLOCK_GOAL_DIST_SPIN, 1.0,
        end,

    plParticleFlockComponent::kInfAvgStr,   _T("InfAvgStr"),    TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_CONFORM_STR, IDC_FLOCK_CONFORM_STR_SPIN, 1.0,
        end,

    plParticleFlockComponent::kInfRepStr,   _T("InfRepStr"),    TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_REPEL_STR, IDC_FLOCK_REPEL_STR_SPIN, 1.0,
        end,

    plParticleFlockComponent::kGoalOrbitStr,    _T("GoalStr"),  TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_GOAL_STR, IDC_FLOCK_GOAL_STR_SPIN, 1.0,
        end,

    plParticleFlockComponent::kMaxChaseSpeed, _T("MaxSpeed"),   TYPE_FLOAT, 0, 0,   
        p_default, 100.0,
        p_range, 0.0, 999.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_MAX_SPEED, IDC_FLOCK_MAX_SPEED_SPIN, 1.0,
        end,        
    
    plParticleFlockComponent::kGoalChaseStr,    _T("GoalChaseStr"), TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_GOAL_CHASE_STR, IDC_FLOCK_GOAL_CHASE_STR_SPIN, 1.0,
        end,
    
    plParticleFlockComponent::kMaxOrbitSpeed, _T("MaxOrbitSpeed"),  TYPE_FLOAT, 0, 0,   
        p_default, 20.0,
        p_range, 0.0, 999.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_MAX_ORBIT_SPEED, IDC_FLOCK_MAX_ORBIT_SPEED_SPIN, 1.0,
        end,        
        
    plParticleFlockComponent::kFullChaseDist,   _T("FullChaseDist"),    TYPE_FLOAT, 0, 0,   
        p_default, 1.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_FLOCK_FULL_CHASE_DIST, IDC_FLOCK_FULL_CHASE_DIST_SPIN, 1.0,
        end,
        
    end
);

plParticleFlockComponent::plParticleFlockComponent()
{
    fClassDesc = &gParticleFlockDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}