68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
// Filename: ringEmitter.h
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// Created by: charles (22Jun00)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef RINGEMITTER_H
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#define RINGEMITTER_H
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#include "baseParticleEmitter.h"
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////////////////////////////////////////////////////////////////////
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// Class : RingEmitter
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// Description : Describes a planar ring region in which
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// particles are generated.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAPHYSICS RingEmitter : public BaseParticleEmitter {
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PUBLISHED:
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RingEmitter();
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RingEmitter(const RingEmitter ©);
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virtual ~RingEmitter();
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virtual BaseParticleEmitter *make_copy();
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INLINE void set_radius(float r);
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INLINE void set_angle(float angle);
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INLINE void set_radius_spread(float spread);
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INLINE float get_radius() const;
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INLINE float get_angle() const;
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INLINE float get_radius_spread() const;
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virtual void output(ostream &out) const;
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virtual void write(ostream &out, int indent=0) const;
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private:
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float _radius;
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float _radius_spread;
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// CUSTOM EMISSION PARAMETERS
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float _aoe; // angle of elevation
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///////////////////////////////
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// scratch variables that carry over from position calc to velocity calc
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float _sin_theta;
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float _cos_theta;
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///////////////////////////////
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virtual void assign_initial_position(LPoint3f& pos);
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virtual void assign_initial_velocity(LVector3f& vel);
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};
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#include "ringEmitter.I"
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#endif // RINGEMITTER_H
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