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authorAndrei Karas <akaras@inbox.ru>2011-01-02 01:48:38 +0200
committerAndrei Karas <akaras@inbox.ru>2011-01-02 02:41:24 +0200
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Initial commit.
This code based on mana client http://www.gitorious.org/mana/mana and my private repository.
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+/*
+ * 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