/* * The Mana Client * Copyright (C) 2006-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * * This file is part of The Mana Client. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef PARTICLEEMITTER_H #define PARTICLEEMITTER_H #include "particleemitterprop.h" #include "resources/animation.h" #include "utils/xml.h" #include <list> class Image; class Map; class Particle; /** * Every Particle can have one or more particle emitters that create new * particles when they are updated */ class ParticleEmitter { public: /** * Constructor. */ ParticleEmitter(xmlNodePtr emitterNode, Particle *target, Map *map, int rotation = 0); /** * Copy Constructor (necessary for reference counting of particle images) */ ParticleEmitter(const ParticleEmitter &o); /** * Assignment operator that calls the copy constructor */ ParticleEmitter & operator=(const ParticleEmitter &o); /** * Destructor. */ ~ParticleEmitter(); /** * Spawns new particles * @return: a list of created particles */ std::list<Particle *> createParticles(int tick); /** * Sets the target of the particles that are created */ void setTarget(Particle *target) { mParticleTarget = target; }; /** * Changes the size of the emitter so that the effect fills a * rectangle of this size */ void adjustSize(int w, int h); private: template <typename T> ParticleEmitterProp<T> readParticleEmitterProp(xmlNodePtr propertyNode, T def); /** * initial position of particles: */ ParticleEmitterProp<float> mParticlePosX, mParticlePosY, mParticlePosZ; /** * initial vector of particles: */ ParticleEmitterProp<float> mParticleAngleHorizontal, mParticleAngleVertical; /** * Initial velocity of particles */ ParticleEmitterProp<float> mParticlePower; /* * Vector changing of particles: */ ParticleEmitterProp<float> mParticleGravity; ParticleEmitterProp<int> mParticleRandomness; ParticleEmitterProp<float> mParticleBounce; bool mParticleFollow; /* * Properties of targeting particles: */ Particle *mParticleTarget; ParticleEmitterProp<float> mParticleAcceleration; ParticleEmitterProp<float> mParticleDieDistance; ParticleEmitterProp<float> mParticleMomentum; /* * Behavior over time of the particles: */ ParticleEmitterProp<int> mParticleLifetime; ParticleEmitterProp<int> mParticleFadeOut; ParticleEmitterProp<int> mParticleFadeIn; Map *mMap; /**< Map the particles are spawned on */ ParticleEmitterProp<int> mOutput; /**< Number of particles spawned per update */ ParticleEmitterProp<int> mOutputPause; /**< Pause in frames between two spawns */ int mOutputPauseLeft; /* * Graphical representation of the particles */ Image *mParticleImage; /**< Particle image, if used */ Animation mParticleAnimation; /**< Filename of particle animation file */ Animation mParticleRotation; /**< Filename of particle rotation file */ ParticleEmitterProp<float> mParticleAlpha; /**< Opacity of the graphical representation of the particles */ /* * Death effect of the particles */ std::string mDeathEffect; char mDeathEffectConditions; /** List of emitters the spawned particles are equipped with */ std::list<ParticleEmitter> mParticleChildEmitters; }; #endif