From 3eeae12c498d1a4dbe969462d2ba841f77ee3ccb Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sun, 2 Jan 2011 01:48:38 +0200
Subject: Initial commit.

This code based on mana client http://www.gitorious.org/mana/mana
and my private repository.
---
 src/particleemitter.h | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 src/particleemitter.h

(limited to 'src/particleemitter.h')

diff --git a/src/particleemitter.h b/src/particleemitter.h
new file mode 100644
index 000000000..dd67ca62f
--- /dev/null
+++ b/src/particleemitter.h
@@ -0,0 +1,153 @@
+/*
+ *  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
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