242 lines
7.2 KiB
C++
242 lines
7.2 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_ANIMATABLE_H
|
|
#define NL_ANIMATABLE_H
|
|
|
|
#include "nel/misc/types_nl.h"
|
|
#include "nel/misc/bit_set.h"
|
|
#include <string>
|
|
#include <vector>
|
|
#include <map>
|
|
|
|
|
|
namespace NL3D
|
|
{
|
|
|
|
class ITrack;
|
|
class CChannelMixer;
|
|
class IAnimatedValue;
|
|
|
|
/**
|
|
* An animatable object.
|
|
*
|
|
* This object can have a set of animated values. At Max 32 animated values can be set (because of bit and touch mgt)
|
|
* Animated values are animated by a CChannelMixer object.
|
|
* Each value have a name and a default track.
|
|
*
|
|
* An IAnimatable may have IAnimatable sons (list of bones, list of materials etc...). The value count and valueId of
|
|
* the IAnimatable DO NOT count those sons, but register() should register his sons too.
|
|
* A father propagated touch system (setFather()) is implemented. When a son is touched, he touchs his fathers, his grandfather
|
|
* and so on.
|
|
*
|
|
* When a class derives from IAnimatable, it must implement all the
|
|
* interface's methods:
|
|
*
|
|
* extend TAnimValues enum, beginning to BaseClass::AnimValueLast, and add a bit OwnerBit.
|
|
* ctor(): just type "IAnimatable::resize (AnimValueLast);"
|
|
* virtual IAnimatedValue* getValue (uint valueId);
|
|
* virtual const char *getValueName (uint valueId) const;
|
|
* virtual ITrack* getDefaultTrack (uint valueId);
|
|
*
|
|
* virtual register(CChannelMixer *, const string &prefix);
|
|
*
|
|
*
|
|
* Watch NL3D::ITransformable and NL3D::CTransform for a good example.
|
|
*
|
|
* \author Cyril 'Hulud' Corvazier
|
|
* \author Nevrax France
|
|
* \date 2001
|
|
*/
|
|
class IAnimatable : public NLMISC::CRefCount
|
|
{
|
|
friend class IAnimatedValue;
|
|
public:
|
|
|
|
/**
|
|
* Default Constructor. Set number of value to 0.
|
|
* Deriver: should just write: IAnimatable::resize (getValueCount());
|
|
*
|
|
*/
|
|
IAnimatable ()
|
|
{
|
|
_Father= NULL;
|
|
_BitSet= 0;
|
|
}
|
|
|
|
virtual ~IAnimatable() {}
|
|
/// \name Interface
|
|
// @{
|
|
/**
|
|
* The enum of animated values. (same system in CMOT). Deriver should extend this enum, beginning with OwnerBit= BaseClass::AnimValueLast.
|
|
* The number of values MUST NOT EXCEED 32, for fast touch() system.
|
|
* "OwnerBit" system: each deriver of IAnimatable should had an entry "OwnerBit" in this TAnimValues. This bit will be set when
|
|
* an IAnimatedValue of this deriver part is touched, or if one of his IAnimatable sons is touched (see setFather()).
|
|
*/
|
|
enum TAnimValues
|
|
{
|
|
AnimValueLast=0,
|
|
};
|
|
|
|
/**
|
|
* Get a value pointer.
|
|
*
|
|
* \param valueId is the animated value ID in the object. IGNORING IANIMATABLE SONS (eg: bones, materials...).
|
|
* \return The pointer on the animated value.
|
|
*/
|
|
virtual IAnimatedValue* getValue (uint valueId) =0;
|
|
|
|
/**
|
|
* Get animated value name.
|
|
*
|
|
* \param valueId is the animated value ID in the object we want the name. IGNORING IANIMATABLE SONS (eg: bones, materials...).
|
|
* \return the name of the animated value.
|
|
*/
|
|
virtual const char *getValueName (uint valueId) const =0;
|
|
|
|
/**
|
|
* Get default track pointer.
|
|
*
|
|
* \param valueId is the animated value ID in the object we want the default track. IGNORING IANIMATABLE SONS (eg: bones, materials...).
|
|
* \return The pointer on the default track of the value.
|
|
*/
|
|
virtual ITrack* getDefaultTrack (uint valueId) =0;
|
|
|
|
/**
|
|
* register the Animatable to a channelMixer (using CChannelMixer::addChannel()). You MUST use this method to register Animatable.
|
|
* This method should:
|
|
* - call is BaseClass method.
|
|
* - register local AnimatableValues, with channel name: prefix+getValueName().
|
|
* - register local sons!!. eg: matlist[0]->registerToChannelMixer(chanMixer, prefix+"mat0.").
|
|
*
|
|
* \param chanMixer is the channel mixer. Should not be NULL. for anim detail purpose , the IAnimatable may store a RefPtr on this channel mixer.
|
|
* \param prefix prefix to be append to valueNames
|
|
*/
|
|
virtual void registerToChannelMixer(CChannelMixer *chanMixer, const std::string &prefix=std::string()) =0;
|
|
|
|
// @}
|
|
|
|
|
|
|
|
/// \name Touch flags management
|
|
// @{
|
|
|
|
/**
|
|
* Say which (if any) IAnimatable owns this one. This is important for Touch propagation.
|
|
* By this system, Fathers and ancestors know if they must check their sons (isTouched() return true).
|
|
*
|
|
* \param father the father we must inform of our update.
|
|
* \param fatherOwnerBit What bit of father we must set when we are updated
|
|
*/
|
|
void setFather(IAnimatable *father, uint fatherOwnerBit)
|
|
{
|
|
_Father= father; _FatherOwnerBit= fatherOwnerBit;
|
|
|
|
// propagate the touch to the fathers.
|
|
propagateTouch();
|
|
}
|
|
|
|
|
|
/**
|
|
* Touch a value because it has been modified.
|
|
*
|
|
* \param valueId is the animated value ID in the object we want to touch.
|
|
* \param ownerValueId is the bit of the IAnimatable part which owns this animated value.
|
|
*/
|
|
void touch (uint valueId, uint ownerValueId)
|
|
{
|
|
// Set the bit
|
|
setFlag(valueId);
|
|
// Set the owner bit
|
|
setFlag(ownerValueId);
|
|
|
|
// propagate the touch to the fathers.
|
|
propagateTouch();
|
|
}
|
|
|
|
/**
|
|
* Return non 0 int if the value as been touched else 0.
|
|
*
|
|
* \param valueId is the animated value ID in the object we want to test the touch flag. or it may be an OwnerBit.
|
|
*/
|
|
uint32 isTouched (uint valueId) const
|
|
{
|
|
return _BitSet&(1<<valueId);
|
|
}
|
|
|
|
|
|
/**
|
|
* Change value count, bit are set to 0
|
|
*
|
|
* \param count is the new value count.
|
|
*/
|
|
void resize (uint count)
|
|
{
|
|
// with the "uint32 _BitSet" implementation, juste check the size is correct
|
|
nlassert(count<=32);
|
|
}
|
|
// @}
|
|
|
|
|
|
private:
|
|
|
|
// Use a uint32 to manage the flags
|
|
uint32 _BitSet;
|
|
// The owner of this IAnimatable.
|
|
IAnimatable *_Father;
|
|
// What bit of father which must set when we are updated.
|
|
uint _FatherOwnerBit;
|
|
|
|
void propagateTouch()
|
|
{
|
|
IAnimatable *pCur= this;
|
|
// Stop when no father, or when father is already touched (and so the grandfather...!!!).
|
|
while(pCur->_Father && !pCur->_Father->isTouched(_FatherOwnerBit))
|
|
{
|
|
// The Owner bit is the "something is touched" flag. touch it.
|
|
pCur->_Father->setFlag(pCur->_FatherOwnerBit);
|
|
pCur= pCur->_Father;
|
|
}
|
|
}
|
|
|
|
|
|
protected:
|
|
/** This is a tool function which add a given value to a channel.
|
|
* \return -1 if the track was not found in the animationSet, else it return the channelId
|
|
* as if returned by CAnimationSet::getChannelIdByName(channelName).
|
|
*/
|
|
sint addValue(CChannelMixer *chanMixer, uint valueId, uint ownerValueId, const std::string &prefix, bool detail);
|
|
|
|
/// This method clear a bit in the bitset.
|
|
void clearFlag(uint valueId)
|
|
{
|
|
_BitSet&= ~(1<<valueId);
|
|
}
|
|
|
|
/// This method set a bit in the bitset.
|
|
void setFlag(uint valueId)
|
|
{
|
|
_BitSet|= (1<<valueId);
|
|
}
|
|
|
|
};
|
|
|
|
|
|
} // NL3D
|
|
|
|
#endif // NL_ANIMATABLE_H
|
|
|
|
/* End of animatable.h */
|