CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAvatar/plPointChannel.h

/*==LICENSE==*

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Copyright (C) 2011 Cyan Worlds, Inc.

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*==LICENSE==*/
#ifndef PLPOINTCHANNEL_H
#define PLPOINTCHANNEL_H

/////////////////////////////////////////////////////////////////////////////////////////
//
// INCLUDES
//
/////////////////////////////////////////////////////////////////////////////////////////

#include "plAGApplicator.h"
#include "plAGChannel.h"

#include "hsGeometry3.h"

/////////////////////////////////////////////////////////////////////////////////////////
//
// FORWARDS
//
/////////////////////////////////////////////////////////////////////////////////////////

class plController;
class plControllerCacheInfo;


/////////////////////////////////////////////////////////////////////////////////////////
//
// DEFINITIONS
//
/////////////////////////////////////////////////////////////////////////////////////////

// PLPOINTCHANNEL
/////////////////
// A source of animated hsPoint3 data
class plPointChannel : public plAGChannel
{
protected:
	hsPoint3 fResult;

public:
	plPointChannel();
	virtual ~plPointChannel();

	// AG PROTOCOL
	virtual const hsPoint3 & Value(double time);
	virtual void Value(hsPoint3 &point, double time);

	// combine it (allocates combine object)
	virtual plAGChannel * MakeCombine(plAGChannel * channelB);

	// blend it (allocates blend object)
	virtual plAGChannel * MakeBlend(plAGChannel * channelB, plScalarChannel * channelBias, int blendPriority);

	// const eval at time zero
	virtual plAGChannel * MakeZeroState();
	// make a timeScale instance
	virtual plAGChannel * MakeTimeScale(plScalarChannel *timeSource);

	// PLASMA PROTOCOL
	CLASSNAME_REGISTER( plPointChannel );
	GETINTERFACE_ANY( plPointChannel, plAGChannel );
};

//////////////////
// PLPOINTCONSTANT
//////////////////
// A point source that just keeps handing out the same point
class plPointConstant : public plPointChannel
{
public:
	plPointConstant();
	plPointConstant(const hsPoint3 &point);
	virtual ~plPointConstant();

	void Set(const hsPoint3 &the_Point) { fResult = the_Point; }

	// PLASMA PROTOCOL
	CLASSNAME_REGISTER( plPointConstant );
	GETINTERFACE_ANY( plPointConstant, plPointChannel );

	void Read(hsStream *stream, hsResMgr *mgr);
	void Write(hsStream *stream, hsResMgr *mgr);
};

////////////////////
// PLPOINTTIMESCALE
////////////////////
// Adapts the time scale before passing it to the next channel in line.
// Use to instance animations while allowing each instance to run at different speeds.
class plPointTimeScale : public plPointChannel
{
protected:
	plScalarChannel *fTimeSource;
	plPointChannel *fChannelIn;

public:
	plPointTimeScale();
	plPointTimeScale(plPointChannel *channel, plScalarChannel *timeSource);
	virtual ~plPointTimeScale();

	virtual hsBool IsStoppedAt(double time);
	virtual const hsPoint3 & Value(double time);

	virtual plAGChannel * Detach(plAGChannel * channel);

	// PLASMA PROTOCOL
	CLASSNAME_REGISTER( plPointTimeScale );
	GETINTERFACE_ANY( plPointTimeScale, plPointChannel );
};

// PLPOINTBLEND
///////////////
// Combines two point sources into one
class plPointBlend : public plPointChannel
{
public:
	plPointBlend();
	plPointBlend(plPointChannel *channelA, plPointChannel *channelB, plScalarChannel *channelBias);
	virtual ~plPointBlend();

	plAGChannel * plPointBlend::Remove(plAGChannel *srceToRemove);

	const plPointChannel * GetPointChannelA() const { return fPointA; }
	void SetPointChannelA(plPointChannel *the_PointA) { fPointA = the_PointA; }

	const plPointChannel * GetPointChannelB() const { return fPointB; }
	void SetPointChannelB(plPointChannel *the_PointB) { fPointB = the_PointB; }

	const plScalarChannel * GetChannelBias() const { return fChannelBias; }
	void SetChannelBias(plScalarChannel * channel) { fChannelBias = channel; }

	//float GetBlend() const { return fBlend; }
	//void SetBlend(float the_blend) { fBlend = the_blend; }
	virtual hsBool IsStoppedAt(double time);

	// AG PROTOCOL
	virtual const hsPoint3 &Value(double time);

	// remove the specified channel from our graph
	virtual plAGChannel * Detach(plAGChannel * channel);

	// PLASMA PROTOCOL
	CLASSNAME_REGISTER( plPointBlend );
	GETINTERFACE_ANY( plPointBlend, plPointChannel );

protected:
	plPointChannel *fPointA;
	plPointChannel *fPointB;
	plScalarChannel *fChannelBias;
};

// BLENDPOINTS
// Handy little function to share with others.
hsPoint3 BlendPoints(hsPoint3 &pointA, hsPoint3 &pointB, float blend);


///////////////////////////
// PLPOINTCONTROLLERCHANNEL
///////////////////////////

// converts a plController-style animation into a plPointChannel
class plPointControllerChannel : public plPointChannel
{
protected:
	plController *fController;
	
public:
	// xTORs
	plPointControllerChannel();
	plPointControllerChannel(plController *controller);
	virtual ~plPointControllerChannel();
	
	// AG PROTOCOL
	virtual const hsPoint3 & Value(double time);
	virtual const hsPoint3 & Value(double time, plControllerCacheInfo *cache);
	
	virtual plAGChannel * MakeCacheChannel(plAnimTimeConvert *atc);		
	
	// PLASMA PROTOCOL
	// rtti
	CLASSNAME_REGISTER( plPointControllerChannel );
	GETINTERFACE_ANY( plPointControllerChannel, plPointChannel );
	
	// persistence
	virtual void Write(hsStream *stream, hsResMgr *mgr);
	virtual void Read(hsStream *s, hsResMgr *mgr);
};

////////////////////////////////
// PLPOINTCONTROLLERCACHECHANNEL
////////////////////////////////
// Same as plPointController, but with caching info
class plPointControllerCacheChannel : public plPointChannel
{
protected:
	plControllerCacheInfo *fCache;
	plPointControllerChannel *fControllerChannel;
	
public:
	plPointControllerCacheChannel();
	plPointControllerCacheChannel(plPointControllerChannel *channel, plControllerCacheInfo *cache);
	virtual ~plPointControllerCacheChannel();
	
	virtual const hsPoint3 & Value(double time, bool peek = false);

	virtual plAGChannel * Detach(plAGChannel * channel);
	
	// PLASMA PROTOCOL
	CLASSNAME_REGISTER( plPointControllerCacheChannel );
	GETINTERFACE_ANY( plPointControllerCacheChannel, plPointChannel );
	
	// Created at runtime only, so no Read/Write
};

////////////////////////////
// 
// Channel Applicator classes

class plPointChannelApplicator : public plAGApplicator
{
protected:
	virtual void IApply(const plAGModifier *mod, double time);

public:
	CLASSNAME_REGISTER( plPointChannelApplicator );
	GETINTERFACE_ANY( plPointChannelApplicator, plAGApplicator );
};

class plLightDiffuseApplicator : public plAGApplicator
{
protected:
	virtual void IApply(const plAGModifier *mod, double time);

public:
	CLASSNAME_REGISTER( plLightDiffuseApplicator );
	GETINTERFACE_ANY( plLightDiffuseApplicator, plAGApplicator );
};

class plLightAmbientApplicator : public plAGApplicator
{
protected:
	virtual void IApply(const plAGModifier *mod, double time);

public:
	CLASSNAME_REGISTER( plLightAmbientApplicator );
	GETINTERFACE_ANY( plLightAmbientApplicator, plAGApplicator );
};

class plLightSpecularApplicator : public plAGApplicator
{
protected:
	virtual void IApply(const plAGModifier *mod, double time);

public:
	CLASSNAME_REGISTER( plLightSpecularApplicator );
	GETINTERFACE_ANY( plLightSpecularApplicator, plAGApplicator );
};




#endif // PLPOINTCHANNEL_H