51 lines
1.7 KiB
C++
51 lines
1.7 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_PS_DIRECTION_H
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#define NL_PS_DIRECTION_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/vector.h"
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namespace NL3D {
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/** This class is an interface for object for a particle system that need a direction (forces, emitter...)
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* Some of these object support global value as a direction (see CParticleSystem::setGlobalVectorValue), so
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* calls to setDir then have no effect.
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*/
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class CPSDirection
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{
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public :
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virtual ~CPSDirection() {}
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virtual void setDir(const NLMISC::CVector &v) = 0;
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virtual NLMISC::CVector getDir(void) const = 0;
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virtual bool supportGlobalVectorValue() const { return false; }
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/** The direction is taken from a global vector defined in the particle system
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* NULL or an empty string as a name disable the use of a global value
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*/
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virtual void enableGlobalVectorValue(const std::string &/* name */) {}
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virtual std::string getGlobalVectorValueName() const { return ""; }
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};
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} // NL3D
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#endif // NL_PS_DIRECTION_H
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/* End of ps_direction.h */
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