mirror of https://github.com/axmolengine/axmol.git
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
/****************************************************************************
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Copyright (C) 2013 Henry van Merode. All rights reserved.
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Copyright (c) 2015 Chukong Technologies Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CC_PU_PARTICLE_3D_LINE_EMITTER_H__
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#define __CC_PU_PARTICLE_3D_LINE_EMITTER_H__
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#include "extensions/Particle3D/ParticleUniverse/ParticleEmitters/CCPUParticle3DEmitter.h"
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NS_CC_BEGIN
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struct PUParticle3D;
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class CC_DLL PUParticle3DLineEmitter : public PUParticle3DEmitter
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{
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public:
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// Constants
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static const Vec3 DEFAULT_END;
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static const float DEFAULT_MIN_INCREMENT;
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static const float DEFAULT_MAX_INCREMENT;
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static const float DEFAULT_MAX_DEVIATION;
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static PUParticle3DLineEmitter* create();
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/**
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*/
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virtual void notifyStart (void);
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/** Override the default implementation, to allow that no particles are emitted if there
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is an incremental emission of particles (along a path), and the end of the line has
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been reached.
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*/
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virtual unsigned short calculateRequestedParticles(float timeElapsed) override;
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/**
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*/
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float getMaxDeviation(void) const;
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void setMaxDeviation(float maxDeviation);
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/**
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*/
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float getMaxIncrement(void) const;
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void setMaxIncrement(float maxIncrement);
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/**
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*/
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float getMinIncrement(void) const;
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void setMinIncrement(float minIncrement);
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/** Get the end vector. This is the vector that defines the end of the line (in local space).
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*/
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const Vec3& getEnd(void) const;
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/** Set the end vector.
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*/
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void setEnd(const Vec3& end);
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/**
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*/
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virtual void notifyRescaled(const Vec3& scale);
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/**
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*/
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virtual void initParticlePosition(PUParticle3D* particle);
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/**
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*/
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virtual void initParticleDirection(PUParticle3D* particle);
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CC_CONSTRUCTOR_ACCESS:
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PUParticle3DLineEmitter(void);
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virtual ~PUParticle3DLineEmitter(void) {};
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protected:
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Vec3 _end; // End point of the line (startpoint is determined by means of position)
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Vec3 _perpendicular; // Generated unit vector perpendicular on the line
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float _maxDeviation; // Determines how far from the line a particle is emitted.
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// This attribute defines the maximum value.
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float _minIncrement; // Defines the minimum increment value.
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float _maxIncrement; // If > 0, it defines the maximum (random) increment value that is
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// taken on the line traject. If not set, there is no particular
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// order in particle generation.
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float _increment; // Defines the trajectory path along the line in terms of increments
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float _length; // The length of the line
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bool _incrementsLeft; // Indicates whether there are more increments on the path towards the end
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// of the line.
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bool _first; // True when the first particle is emitted (only for generating particles incremental)
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// Internal scaled values
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Vec3 _scaledEnd;
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float _scaledMaxDeviation;
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float _scaledMinIncrement;
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float _scaledMaxIncrement;
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float _scaledLength;
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};
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NS_CC_END
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#endif |