Initial commit.

This code based on mana client http://www.gitorious.org/mana/mana
and my private repository.

1 files changed, 568 insertions, 0 deletions

diff --git a/src/particleemitter.cpp b/src/particleemitter.cpp
new file mode 100644
index 000000000..90b29422f
--- /dev/null
+++ b/src/particleemitter.cpp
@@ -0,0 +1,568 @@
+/*
+ *  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/>.
+ */
+
+#include "animationparticle.h"
+#include "imageparticle.h"
+#include "log.h"
+#include "particle.h"
+#include "particleemitter.h"
+#include "rotationalparticle.h"
+
+#include "resources/image.h"
+#include "resources/imageset.h"
+#include "resources/resourcemanager.h"
+
+#include <cmath>
+
+#define SIN45 0.707106781f
+#define DEG_RAD_FACTOR 0.017453293f
+
+ParticleEmitter::ParticleEmitter(xmlNodePtr emitterNode, Particle *target,
+                                 Map *map, int rotation):
+    mOutputPauseLeft(0),
+    mParticleImage(0)
+{
+    mMap = map;
+    mParticleTarget = target;
+
+    // Initializing default values
+    mParticlePosX.set(0.0f);
+    mParticlePosY.set(0.0f);
+    mParticlePosZ.set(0.0f);
+    mParticleAngleHorizontal.set(0.0f);
+    mParticleAngleVertical.set(0.0f);
+    mParticlePower.set(0.0f);
+    mParticleGravity.set(0.0f);
+    mParticleRandomness.set(0);
+    mParticleBounce.set(0.0f);
+    mParticleFollow = false;
+    mParticleAcceleration.set(0.0f);
+    mParticleDieDistance.set(-1.0f);
+    mParticleMomentum.set(1.0f);
+    mParticleLifetime.set(-1);
+    mParticleFadeOut.set(0);
+    mParticleFadeIn.set(0);
+    mOutput.set(1);
+    mOutputPause.set(0);
+    mParticleAlpha.set(1.0f);
+
+    for_each_xml_child_node(propertyNode, emitterNode)
+    {
+        if (xmlStrEqual(propertyNode->name, BAD_CAST "property"))
+        {
+            std::string name = XML::getProperty(propertyNode, "name", "");
+
+            if (name == "position-x")
+            {
+                mParticlePosX = readParticleEmitterProp(propertyNode, 0.0f);
+            }
+            else if (name == "position-y")
+            {
+
+                mParticlePosY = readParticleEmitterProp(propertyNode, 0.0f);
+                mParticlePosY.minVal *= SIN45;
+                mParticlePosY.maxVal *= SIN45;
+                mParticlePosY.changeAmplitude *= SIN45;
+            }
+            else if (name == "position-z")
+            {
+                mParticlePosZ = readParticleEmitterProp(propertyNode, 0.0f);
+                mParticlePosZ.minVal *= SIN45;
+                mParticlePosZ.maxVal *= SIN45;
+                mParticlePosZ.changeAmplitude *= SIN45;
+            }
+            else if (name == "image")
+            {
+                std::string image = XML::getProperty(
+                    propertyNode, "value", "");
+                // Don't leak when multiple images are defined
+                if (!image.empty() && !mParticleImage)
+                {
+                    ResourceManager *resman = ResourceManager::getInstance();
+                    mParticleImage = resman->getImage(image);
+                }
+            }
+            else if (name == "horizontal-angle")
+            {
+                mParticleAngleHorizontal =
+                    readParticleEmitterProp(propertyNode, 0.0f);
+                mParticleAngleHorizontal.minVal
+                    += static_cast<float>(rotation);
+                mParticleAngleHorizontal.minVal *= DEG_RAD_FACTOR;
+                mParticleAngleHorizontal.maxVal
+                    += static_cast<float>(rotation);
+                mParticleAngleHorizontal.maxVal *= DEG_RAD_FACTOR;
+                mParticleAngleHorizontal.changeAmplitude *= DEG_RAD_FACTOR;
+            }
+            else if (name == "vertical-angle")
+            {
+                mParticleAngleVertical =
+                    readParticleEmitterProp(propertyNode, 0.0f);
+                mParticleAngleVertical.minVal *= DEG_RAD_FACTOR;
+                mParticleAngleVertical.maxVal *= DEG_RAD_FACTOR;
+                mParticleAngleVertical.changeAmplitude *= DEG_RAD_FACTOR;
+            }
+            else if (name == "power")
+            {
+                mParticlePower = readParticleEmitterProp(propertyNode, 0.0f);
+            }
+            else if (name == "gravity")
+            {
+                mParticleGravity = readParticleEmitterProp(propertyNode, 0.0f);
+            }
+            else if (name == "randomnes" || name == "randomness") // legacy bug
+            {
+                mParticleRandomness = readParticleEmitterProp(propertyNode, 0);
+            }
+            else if (name == "bounce")
+            {
+                mParticleBounce = readParticleEmitterProp(propertyNode, 0.0f);
+            }
+            else if (name == "lifetime")
+            {
+                mParticleLifetime = readParticleEmitterProp(propertyNode, 0);
+                mParticleLifetime.minVal += 1;
+            }
+            else if (name == "output")
+            {
+                mOutput = readParticleEmitterProp(propertyNode, 0);
+                mOutput.maxVal += 1;
+            }
+            else if (name == "output-pause")
+            {
+                mOutputPause = readParticleEmitterProp(propertyNode, 0);
+                mOutputPauseLeft = mOutputPause.value(0);
+            }
+            else if (name == "acceleration")
+            {
+                mParticleAcceleration = readParticleEmitterProp(
+                    propertyNode, 0.0f);
+            }
+            else if (name == "die-distance")
+            {
+                mParticleDieDistance = readParticleEmitterProp(
+                    propertyNode, 0.0f);
+            }
+            else if (name == "momentum")
+            {
+                mParticleMomentum = readParticleEmitterProp(
+                    propertyNode, 1.0f);
+            }
+            else if (name == "fade-out")
+            {
+                mParticleFadeOut = readParticleEmitterProp(propertyNode, 0);
+            }
+            else if (name == "fade-in")
+            {
+                mParticleFadeIn = readParticleEmitterProp(propertyNode, 0);
+            }
+            else if (name == "alpha")
+            {
+                mParticleAlpha = readParticleEmitterProp(propertyNode, 1.0f);
+            }
+            else if (name == "follow-parent")
+            {
+                mParticleFollow = true;
+            }
+            else
+            {
+                logger->log("Particle Engine: Warning, "
+                            "unknown emitter property \"%s\"",
+                            name.c_str());
+            }
+        }
+        else if (xmlStrEqual(propertyNode->name, BAD_CAST "emitter"))
+        {
+            ParticleEmitter newEmitter(propertyNode, mParticleTarget, map);
+            mParticleChildEmitters.push_back(newEmitter);
+        }
+        else if (xmlStrEqual(propertyNode->name, BAD_CAST "rotation"))
+        {
+            ImageSet *imageset = ResourceManager::getInstance()->getImageSet(
+                XML::getProperty(propertyNode, "imageset", ""),
+                XML::getProperty(propertyNode, "width", 0),
+                XML::getProperty(propertyNode, "height", 0)
+            );
+
+            if (!imageset)
+            {
+                logger->log1("Error: no valid imageset");
+                continue;
+            }
+
+            // Get animation frames
+            for_each_xml_child_node(frameNode, propertyNode)
+            {
+                int delay = XML::getProperty(frameNode, "delay", 0);
+                int offsetX = XML::getProperty(frameNode, "offsetX", 0);
+                int offsetY = XML::getProperty(frameNode, "offsetY", 0);
+                if (!imageset)
+                {
+                    logger->log1("Error: no valid imageset");
+                    continue;
+                }
+
+                offsetY -= imageset->getHeight() - 32;
+                offsetX -= imageset->getWidth() / 2 - 16;
+
+                if (xmlStrEqual(frameNode->name, BAD_CAST "frame"))
+                {
+                    int index = XML::getProperty(frameNode, "index", -1);
+
+                    if (index < 0)
+                    {
+                        logger->log1("No valid value for 'index'");
+                        continue;
+                    }
+
+                    Image *img = imageset->get(index);
+
+                    if (!img)
+                    {
+                        logger->log("No image at index %d", index);
+                        continue;
+                    }
+
+                    mParticleRotation.addFrame(img, delay, offsetX, offsetY);
+                }
+                else if (xmlStrEqual(frameNode->name, BAD_CAST "sequence"))
+                {
+                    int start = XML::getProperty(frameNode, "start", -1);
+                    int end = XML::getProperty(frameNode, "end", -1);
+
+                    if (start < 0 || end < 0)
+                    {
+                        logger->log1("No valid value for 'start' or 'end'");
+                        continue;
+                    }
+
+                    while (end >= start)
+                    {
+                        Image *img = imageset->get(start);
+
+                        if (!img)
+                        {
+                            logger->log("No image at index %d", start);
+                            continue;
+                        }
+
+                        mParticleRotation.addFrame(img, delay,
+                                                   offsetX, offsetY);
+                        start++;
+                    }
+                }
+                else if (xmlStrEqual(frameNode->name, BAD_CAST "end"))
+                {
+                    mParticleRotation.addTerminator();
+                }
+            } // for frameNode
+        }
+        else if (xmlStrEqual(propertyNode->name, BAD_CAST "animation"))
+        {
+            ImageSet *imageset = ResourceManager::getInstance()->getImageSet(
+                XML::getProperty(propertyNode, "imageset", ""),
+                XML::getProperty(propertyNode, "width", 0),
+                XML::getProperty(propertyNode, "height", 0)
+            );
+
+            if (!imageset)
+            {
+                logger->log1("Error: no valid imageset");
+                continue;
+            }
+
+            // Get animation frames
+            for_each_xml_child_node(frameNode, propertyNode)
+            {
+                int delay = XML::getProperty(frameNode, "delay", 0);
+                int offsetX = XML::getProperty(frameNode, "offsetX", 0);
+                int offsetY = XML::getProperty(frameNode, "offsetY", 0);
+                offsetY -= imageset->getHeight() - 32;
+                offsetX -= imageset->getWidth() / 2 - 16;
+
+                if (xmlStrEqual(frameNode->name, BAD_CAST "frame"))
+                {
+                    int index = XML::getProperty(frameNode, "index", -1);
+
+                    if (index < 0)
+                    {
+                        logger->log1("No valid value for 'index'");
+                        continue;
+                    }
+
+                    Image *img = imageset->get(index);
+
+                    if (!img)
+                    {
+                        logger->log("No image at index %d", index);
+                        continue;
+                    }
+
+                    mParticleAnimation.addFrame(img, delay, offsetX, offsetY);
+                }
+                else if (xmlStrEqual(frameNode->name, BAD_CAST "sequence"))
+                {
+                    int start = XML::getProperty(frameNode, "start", -1);
+                    int end = XML::getProperty(frameNode, "end", -1);
+
+                    if (start < 0 || end < 0)
+                    {
+                        logger->log1("No valid value for 'start' or 'end'");
+                        continue;
+                    }
+
+                    while (end >= start)
+                    {
+                        Image *img = imageset->get(start);
+
+                        if (!img)
+                        {
+                            logger->log("No image at index %d", start);
+                            continue;
+                        }
+
+                        mParticleAnimation.addFrame(img, delay,
+                                                    offsetX, offsetY);
+                        start++;
+                    }
+                }
+                else if (xmlStrEqual(frameNode->name, BAD_CAST "end"))
+                {
+                    mParticleAnimation.addTerminator();
+                }
+            } // for frameNode
+        }
+        else if (xmlStrEqual(propertyNode->name, BAD_CAST "deatheffect"))
+        {
+            mDeathEffect = (const char*)propertyNode->xmlChildrenNode->content;
+            mDeathEffectConditions = 0x00;
+            if (XML::getBoolProperty(propertyNode, "on-floor", true))
+                mDeathEffectConditions += Particle::DEAD_FLOOR;
+            if (XML::getBoolProperty(propertyNode, "on-sky", true))
+                mDeathEffectConditions += Particle::DEAD_SKY;
+            if (XML::getBoolProperty(propertyNode, "on-other", false))
+                mDeathEffectConditions += Particle::DEAD_OTHER;
+            if (XML::getBoolProperty(propertyNode, "on-impact", true))
+                mDeathEffectConditions += Particle::DEAD_IMPACT;
+            if (XML::getBoolProperty(propertyNode, "on-timeout", true))
+                mDeathEffectConditions += Particle::DEAD_TIMEOUT;
+        }
+    }
+}
+
+ParticleEmitter::ParticleEmitter(const ParticleEmitter &o)
+{
+    *this = o;
+}
+
+ParticleEmitter & ParticleEmitter::operator=(const ParticleEmitter &o)
+{
+    mParticlePosX = o.mParticlePosX;
+    mParticlePosY = o.mParticlePosY;
+    mParticlePosZ = o.mParticlePosZ;
+    mParticleAngleHorizontal = o.mParticleAngleHorizontal;
+    mParticleAngleVertical = o.mParticleAngleVertical;
+    mParticlePower = o.mParticlePower;
+    mParticleGravity = o.mParticleGravity;
+    mParticleRandomness = o.mParticleRandomness;
+    mParticleBounce = o.mParticleBounce;
+    mParticleFollow = o.mParticleFollow;
+    mParticleTarget = o.mParticleTarget;
+    mParticleAcceleration = o.mParticleAcceleration;
+    mParticleDieDistance = o.mParticleDieDistance;
+    mParticleMomentum = o.mParticleMomentum;
+    mParticleLifetime = o.mParticleLifetime;
+    mParticleFadeOut = o.mParticleFadeOut;
+    mParticleFadeIn = o.mParticleFadeIn;
+    mParticleAlpha = o.mParticleAlpha;
+    mMap = o.mMap;
+    mOutput = o.mOutput;
+    mOutputPause = o.mOutputPause;
+    mParticleImage = o.mParticleImage;
+    mParticleAnimation = o.mParticleAnimation;
+    mParticleRotation = o.mParticleRotation;
+    mParticleChildEmitters = o.mParticleChildEmitters;
+    mDeathEffectConditions = o.mDeathEffectConditions;
+
+    mOutputPauseLeft = 0;
+
+    if (mParticleImage)
+        mParticleImage->incRef();
+
+    return *this;
+}
+
+
+ParticleEmitter::~ParticleEmitter()
+{
+    if (mParticleImage)
+        mParticleImage->decRef();
+}
+
+
+template <typename T> ParticleEmitterProp<T>
+ParticleEmitter::readParticleEmitterProp(xmlNodePtr propertyNode, T def)
+{
+    ParticleEmitterProp<T> retval;
+
+    def = (T) XML::getFloatProperty(propertyNode, "value", (double) def);
+    retval.set((T) XML::getFloatProperty(propertyNode, "min", (double) def),
+               (T) XML::getFloatProperty(propertyNode, "max", (double) def));
+
+    std::string change = XML::getProperty(propertyNode, "change-func", "none");
+    T amplitude = (T) XML::getFloatProperty(propertyNode,
+                                            "change-amplitude", 0.0);
+    int period = XML::getProperty(propertyNode, "change-period", 0);
+    int phase = XML::getProperty(propertyNode, "change-phase", 0);
+    if (change == "saw" || change == "sawtooth")
+        retval.setFunction(FUNC_SAW, amplitude, period, phase);
+    else if (change == "sine" || change == "sinewave")
+        retval.setFunction(FUNC_SINE, amplitude, period, phase);
+    else if (change == "triangle")
+        retval.setFunction(FUNC_TRIANGLE, amplitude, period, phase);
+    else if (change == "square")
+        retval.setFunction(FUNC_SQUARE, amplitude, period, phase);
+
+    return retval;
+}
+
+
+std::list<Particle *> ParticleEmitter::createParticles(int tick)
+{
+    std::list<Particle *> newParticles;
+
+    if (mOutputPauseLeft > 0)
+    {
+        mOutputPauseLeft--;
+        return newParticles;
+    }
+    mOutputPauseLeft = mOutputPause.value(tick);
+
+    for (int i = mOutput.value(tick); i > 0; i--)
+    {
+        // Limit maximum particles
+        if (Particle::particleCount > Particle::maxCount)
+            break;
+
+        Particle *newParticle;
+        if (mParticleImage)
+        {
+            std::string name = mParticleImage->getIdPath();
+            if (ImageParticle::imageParticleCountByName.find(name) ==
+                ImageParticle::imageParticleCountByName.end())
+            {
+                ImageParticle::imageParticleCountByName[name] = 0;
+            }
+
+            if (ImageParticle::imageParticleCountByName[name] > 200)
+                break;
+
+            newParticle = new ImageParticle(mMap, mParticleImage);
+        }
+        else if (mParticleRotation.getLength() > 0)
+        {
+            Animation *newAnimation = new Animation(mParticleRotation);
+            newParticle = new RotationalParticle(mMap, newAnimation);
+        }
+        else if (mParticleAnimation.getLength() > 0)
+        {
+            Animation *newAnimation = new Animation(mParticleAnimation);
+            newParticle = new AnimationParticle(mMap, newAnimation);
+        }
+        else
+        {
+            newParticle = new Particle(mMap);
+        }
+
+        Vector position(mParticlePosX.value(tick),
+                        mParticlePosY.value(tick),
+                        mParticlePosZ.value(tick));
+        newParticle->moveTo(position);
+
+        float angleH = mParticleAngleHorizontal.value(tick);
+        float angleV = mParticleAngleVertical.value(tick);
+        float power = mParticlePower.value(tick);
+        newParticle->setVelocity(
+                static_cast<float>(cos(angleH) * cos(angleV) * power),
+                static_cast<float>(sin(angleH) * cos(angleV) * power),
+                static_cast<float>(sin(angleV) * power));
+
+        newParticle->setRandomness(mParticleRandomness.value(tick));
+        newParticle->setGravity(mParticleGravity.value(tick));
+        newParticle->setBounce(mParticleBounce.value(tick));
+        newParticle->setFollow(mParticleFollow);
+
+        newParticle->setDestination(mParticleTarget,
+                                    mParticleAcceleration.value(tick),
+                                    mParticleMomentum.value(tick)
+                                   );
+        newParticle->setDieDistance(mParticleDieDistance.value(tick));
+
+        newParticle->setLifetime(mParticleLifetime.value(tick));
+        newParticle->setFadeOut(mParticleFadeOut.value(tick));
+        newParticle->setFadeIn(mParticleFadeIn.value(tick));
+        newParticle->setAlpha(mParticleAlpha.value(tick));
+
+        for (std::list<ParticleEmitter>::iterator
+             i = mParticleChildEmitters.begin();
+             i != mParticleChildEmitters.end(); i++)
+        {
+            newParticle->addEmitter(new ParticleEmitter(*i));
+        }
+
+        if (!mDeathEffect.empty())
+        {
+            newParticle->setDeathEffect(mDeathEffect, mDeathEffectConditions);
+        }
+
+        newParticles.push_back(newParticle);
+    }
+
+    return newParticles;
+}
+
+void ParticleEmitter::adjustSize(int w, int h)
+{
+    if (w == 0 || h == 0)
+        return; // new dimensions are illegal
+
+    // calculate the old rectangle
+    int oldWidth = static_cast<int>(mParticlePosX.maxVal
+                                    - mParticlePosX.minVal);
+    int oldHeight = static_cast<int>(mParticlePosX.maxVal
+                                     - mParticlePosY.minVal);
+    int oldArea = oldWidth * oldHeight;
+    if (oldArea == 0)
+    {
+        //when the effect has no dimension it is
+        //not designed to be resizeable
+        return;
+    }
+
+    // set the new dimensions
+    mParticlePosX.set(0, static_cast<float>(w));
+    mParticlePosY.set(0, static_cast<float>(h));
+    int newArea = w * h;
+    // adjust the output so that the particle density stays the same
+    float outputFactor = (float)newArea / (float)oldArea;
+    mOutput.minVal *= static_cast<float>(outputFactor);
+    mOutput.maxVal *= static_cast<float>(outputFactor);
+}