CWE-ou-minkata/Sources/Tools/MaxPlasmaMtls/Layers/plAngleAttenLayer.h

/*==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
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/

#ifndef plAngleAttenLayer_inc
#define plAngleAttenLayer_inc

#include "Max.h"
#include "../resource.h"
#include "plPlasmaMAXLayer.h"

class ClassDesc2;
class IParamBlock2;

ClassDesc2* GetAngleAttenLayerDesc();

extern TCHAR *GetString(int id);
extern HINSTANCE hInstance;


//// Class Definition /////////////////////////////////////////////////////////

class plAngleAttenLayer : public plPlasmaMAXLayer
{
protected:
    // Parameter block
    IParamBlock2*   fParmsPB;

    Interval        fIValid;

    BOOL            fCosinesCached;
    float           fCosTransp0;
    float           fCosOpaque0;
    float           fCosTransp1;
    float           fCosOpaque1;

public:
    // Ref nums
    enum
    {
        kRefAngles
    };

    // Block ID's
    enum
    {
        kBlkAngles
    };

    plAngleAttenLayer();
    ~plAngleAttenLayer();
    void DeleteThis() { delete this; }      

    //From MtlBase
    ParamDlg* CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp);
    BOOL SetDlgThing(ParamDlg* dlg);
    void Update(TimeValue t, Interval& valid);
    void Reset();
    Interval Validity(TimeValue t);
    ULONG LocalRequirements(int subMtlNum);

    //From Texmap
    RGBA EvalColor(ShadeContext& sc);
    float EvalMono(ShadeContext& sc);
    Point3 EvalNormalPerturb(ShadeContext& sc);

    // For displaying textures in the viewport
    BOOL SupportTexDisplay() { return FALSE; }
    void ActivateTexDisplay(BOOL onoff);
    BITMAPINFO *GetVPDisplayDIB(TimeValue t, TexHandleMaker& thmaker, Interval &valid, BOOL mono=FALSE, int forceW=0, int forceH=0);
    DWORD GetActiveTexHandle(TimeValue t, TexHandleMaker& thmaker);
protected:
    void    ICacheCosines();
    void    IChanged();
    void    IDiscardTexHandle();

public:
    
    //TODO: Return anim index to reference index
    int SubNumToRefNum(int subNum) { return subNum; }
    
    virtual BOOL    DiscardColor() { return true; }
    
    // Loading/Saving
    IOResult Load(ILoad *iload);
    IOResult Save(ISave *isave);

    //From Animatable
    Class_ID ClassID() { return ANGLE_ATTEN_LAYER_CLASS_ID; }       
    SClass_ID SuperClassID() { return TEXMAP_CLASS_ID; }
    void GetClassName(TSTR& s) { s = GetString(IDS_ANGLE_ATTEN_LAYER); }

    RefTargetHandle Clone( RemapDir &remap );
    RefResult NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, 
        PartID& partID,  RefMessage message);

    int NumSubs();
    Animatable* SubAnim(int i); 
    TSTR SubAnimName(int i);

    // TODO: Maintain the number or references here 
    int NumRefs();
    RefTargetHandle GetReference(int i);
    void SetReference(int i, RefTargetHandle rtarg);

    int NumParamBlocks();   // return number of ParamBlocks in this instance
    IParamBlock2* GetParamBlock(int i); // return i'th ParamBlock
    IParamBlock2* GetParamBlockByID(BlockID id); // return id'd ParamBlock

    const char *GetTextureName( int which );


    /// ParamBlock accessors
    enum
    {
        kTranspAngle0,
        kOpaqueAngle0,
        kOpaqueAngle1,
        kTranspAngle1,
        kDoubleFade,
        kReflect,
        kLoClamp,
        kHiClamp
    };


    // Pure virtual accessors for the various bitmap related elements
    virtual Bitmap *GetMaxBitmap(int index = 0) { hsAssert( false, "Function call not valid on this type of layer." ); return nil; }
    virtual PBBitmap *GetPBBitmap( int index = 0 ) { hsAssert( false, "Function call not valid on this type of layer." ); return nil; }
    virtual int     GetNumBitmaps( void ) { return 0; }

    // Some specific to processing this layer type into runtime materials.
    virtual Box3 GetFade();
    virtual BOOL Reflect();
    virtual int GetLoClamp();
    virtual int GetHiClamp();

protected:
    virtual void ISetMaxBitmap(Bitmap *bitmap, int index = 0) { hsAssert( false, "Function call not valid on this type of layer." ); }
    virtual void ISetPBBitmap( PBBitmap *pbbm, int index = 0 ){ hsAssert( false, "Function call not valid on this type of layer." ); }
};

#endif // plAngleAttenLayer_inc