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

/*==LICENSE==*

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Copyright (C) 2011 Cyan Worlds, Inc.

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*==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