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224 lines
8.1 KiB
C++
224 lines
8.1 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_U_TRACK_H
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#define NL_U_TRACK_H
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#include "nel/misc/stream.h"
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#include "nel/misc/types_nl.h"
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namespace NLMISC
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{
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class CQuat;
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class CRGBA;
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class CVector;
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}
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namespace NL3D
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{
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/**
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* A track is a fonction that interpolate a value over the time.
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*
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* Kind of interpolation is hidden to the user. It can be Bezier, TCB, linear, noise interpolation.
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* This interface give access to the interpolation fonction.
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*
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* \author Cyril 'Hulud' Corvazier
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* \author Nevrax France
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* \date 2001
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*/
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class UTrack : public NLMISC::IStreamable
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{
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public:
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/// \name Time range methods.
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// @{
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/**
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* Get the begin time of the track
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*/
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virtual TAnimationTime getBeginTime () const=0;
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/**
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* Get the end time of the track
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*/
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virtual TAnimationTime getEndTime () const=0;
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// @}
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/// \name Interpolation methods.
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// @{
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/**
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* Interplation a float value. You should be sure that the track you use to interpolate
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* your value is a float track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, float& res) =0;
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/**
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* Interplation an integer value. You should be sure that the track you use to interpolate
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* your value is an integer track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, sint32& res) =0;
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/**
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* Interplation a CRGBA value. You should be sure that the track you use to interpolate
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* your value is an CRGBA track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, NLMISC::CRGBA& res) =0;
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/**
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* Interplation a CVector value. You should be sure that the track you use to interpolate
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* your value is a CVector track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, NLMISC::CVector& res) =0;
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/**
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* Interplation a CQuat value. You should be sure that the track you use to interpolate
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* your value is a CQuat track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, NLMISC::CQuat& res) =0;
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/**
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* Interplation a string value. You should be sure that the track you use to interpolate
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* your value is a string track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, std::string& res) =0;
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/**
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* Interplation a bool value. You should be sure that the track you use to interpolate
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* your value is a bool track! An assertion will be raised in debug if the type is wrong.
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*
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* \param time is the time you want the evaluate the value. If time higher than the time
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* gived by getEndTime (), the value returned is the interpolation value at getEndTime ().
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* If time smaller than the time gived by getBeginTime (), the value returned is the
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* interpolation value at getBeginTime ().
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* \param res is the reference on the value to get the result.
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* \return true if interplation is successful. false if the type asked is wrong.
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*/
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virtual bool interpolate (TAnimationTime time, bool& res) =0;
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// @}
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};
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/** This is a keyframer track interface.
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* Once you've got a track, you can know whether its a keyframer track by using a dynamic_cast
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*/
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class UTrackKeyframer
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{
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public:
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class UKeyLinearFloat
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{
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public:
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TAnimationTime Time;
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float Value;
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};
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class UKeyBezierFloat
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{
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public:
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TAnimationTime Time;
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float Value;
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float TanIn, TanOut;
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bool Step;
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};
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class UKeyTCBFloat
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{
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public:
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TAnimationTime Time;
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float Value;
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float Tension;
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float Continuity;
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float Bias;
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float EaseFrom;
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float EaseTo;
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};
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UTrackKeyframer(){}
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virtual ~UTrackKeyframer(){}
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static UTrackKeyframer *createLinearFloatTrack();
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static UTrackKeyframer *createBezierFloatTrack();
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static UTrackKeyframer *createTCBFloatTrack();
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public:
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/** Retrieve the keys that are in the given range ]t1, t2] of the track. They can then be evaluated
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* \param result a vector that will be cleared, and filled with the date ofthe keys
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*/
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virtual void getKeysInRange(TAnimationTime t1, TAnimationTime t2, std::vector<TAnimationTime> &result)=0;
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/// Fail if not A Float Linear Keyframer
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virtual bool addLinearFloatKey(const UKeyLinearFloat &/* key */) {return false;}
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/// Fail if not A Float Bezier Keyframer
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virtual bool addBezierFloatKey(const UKeyBezierFloat &/* key */) {return false;}
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/// Fail if not A Float TCB Keyframer
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virtual bool addTCBFloatKey(const UKeyTCBFloat &/* key */) {return false;}
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};
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} // NL3D
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#endif // NL_U_TRACK_H
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/* End of u_track.h */
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