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author | Bjørn Lindeijer <bjorn@lindeijer.nl> | 2007-06-03 16:52:06 +0000 |
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committer | Bjørn Lindeijer <bjorn@lindeijer.nl> | 2007-06-03 16:52:06 +0000 |
commit | 6276c1ff96e449e73e84977110334cd8957c31b6 (patch) | |
tree | 66988ea8a28fd9de6c2f31d20a38a4efafee9a99 /src/particle.cpp | |
parent | 9b53cd51fdf193c8748909479ec6c356fa7a1731 (diff) | |
download | mana-6276c1ff96e449e73e84977110334cd8957c31b6.tar.gz mana-6276c1ff96e449e73e84977110334cd8957c31b6.tar.bz2 mana-6276c1ff96e449e73e84977110334cd8957c31b6.tar.xz mana-6276c1ff96e449e73e84977110334cd8957c31b6.zip |
Fixed image loading in software mode to not check for alpha layer with images
aren't 32-bit and removed drawImageTransparent from Graphics class, should be
set on image.
Diffstat (limited to 'src/particle.cpp')
-rw-r--r-- | src/particle.cpp | 738 |
1 files changed, 370 insertions, 368 deletions
diff --git a/src/particle.cpp b/src/particle.cpp index 88e8c2b3..f88b9c21 100644 --- a/src/particle.cpp +++ b/src/particle.cpp @@ -1,368 +1,370 @@ -/*
- * The Mana World
- * Copyright 2006 The Mana World Development Team
- *
- * This file is part of The Mana World.
- *
- * The Mana World 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.
- *
- * The Mana World 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 The Mana World; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include "particle.h"
-
-#include <cmath>
-
-#include "animationparticle.h"
-#include "configuration.h"
-#include "imageparticle.h"
-#include "log.h"
-#include "map.h"
-#include "particleemitter.h"
-#include "textparticle.h"
-
-#include "resources/resourcemanager.h"
-
-#include "utils/dtor.h"
-#include "utils/fastsqrt.h"
-#include "utils/xml.h"
-
-class Graphics;
-class Image;
-
-int Particle::particleCount = 0;
-int Particle::maxCount = 0;
-int Particle::fastPhysics = 0;
-int Particle::emitterSkip = 1;
-const float Particle::PARTICLE_SKY = 800.0f;
-
-Particle::Particle(Map *map) :
- mAlive(true),
- mPosX(0.0f), mPosY(0.0f), mPosZ(0.0f),
- mLifetimeLeft(-1),
- mLifetimePast(0),
- mFadeOut(0),
- mFadeIn(0),
- mAutoDelete(true),
- mMap(map),
- mVectorX(0.0f), mVectorY(0.0f), mVectorZ(0.0f),
- mGravity(0.0f),
- mRandomnes(0),
- mBounce(0.0f),
- mTarget(NULL),
- mAcceleration(0.0f),
- mInvDieDistance(-1.0f),
- mMomentum(1.0f)
-{
- Particle::particleCount++;
- if (mMap) setSpriteIterator(mMap->addSprite(this));
-}
-
-
-void
-Particle::setupEngine()
-{
- Particle::maxCount = (int)config.getValue("particleMaxCount", 3000);
- Particle::fastPhysics = (int)config.getValue("particleFastPhysics", 0);
- Particle::emitterSkip = (int)config.getValue("particleEmitterSkip", 0) + 1;
- disableAutoDelete();
- logger->log("Particle engine set up");
-}
-
-bool
-Particle::update()
-{
- if (!mMap) return false;
-
- if (mLifetimeLeft == 0)
- {
- mAlive = false;
- }
-
- if (mAlive)
- {
- //update child emitters
- if (mLifetimePast%Particle::emitterSkip == 0)
- {
- for ( EmitterIterator e = mChildEmitters.begin();
- e != mChildEmitters.end();
- e++
- )
- {
- Particles newParticles = (*e)->createParticles();
- for ( ParticleIterator p = newParticles.begin();
- p != newParticles.end();
- p++
- )
- {
- (*p)->moveBy(mPosX, mPosY, mPosZ);
- mChildParticles.push_back (*p);
- }
- }
- }
-
- if (mMomentum != 1.0f)
- {
- mVectorX *= mMomentum;
- mVectorY *= mMomentum;
- mVectorZ *= mMomentum;
- }
-
- if (mTarget && mAcceleration != 0.0f)
- {
- float distX = mPosX - mTarget->getPosX();
- float distY = mPosY - mTarget->getPosY();
- float distZ = mPosZ - mTarget->getPosZ();
- float invHypotenuse;
-
- switch(Particle::fastPhysics)
- {
- case 1:
- invHypotenuse = fastInvSqrt(
- distX * distX + distY * distY + distZ * distZ);
- break;
- case 2:
- invHypotenuse = 2.0f /
- fabs(distX) + fabs(distY) + fabs(distZ);
- break;
- default:
- invHypotenuse = 1.0f / sqrt(
- distX * distX + distY * distY + distZ * distZ);
- break;
- }
-
- if (invHypotenuse)
- {
- if (mInvDieDistance > 0.0f && invHypotenuse > mInvDieDistance)
- {
- mAlive = false;
- }
- float accFactor = invHypotenuse * mAcceleration;
- mVectorX -= distX * accFactor;
- mVectorY -= distY * accFactor;
- mVectorZ -= distZ * accFactor;
- }
- }
-
- if (mRandomnes > 0)
- {
- mVectorX += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f;
- mVectorY += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f;
- mVectorZ += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f;
- }
-
- mVectorZ -= mGravity;
-
- // update position
- mPosX += mVectorX;
- mPosY += mVectorY;
- mPosZ += mVectorZ;
-
- //update other stuff
- if (mLifetimeLeft > 0)
- {
- mLifetimeLeft--;
- }
- mLifetimePast++;
-
- if (mPosZ > PARTICLE_SKY || mPosZ < 0.0f)
- {
- if (mBounce > 0.0f)
- {
- mPosZ *= -mBounce;
- mVectorX *= mBounce;
- mVectorY *= mBounce;
- mVectorZ *= -mBounce;
- }
- else {
- mAlive = false;
- }
- }
- }
-
- //update child particles
- for ( ParticleIterator p = mChildParticles.begin();
- p != mChildParticles.end();
-
- )
- {
- if ((*p)->update())
- {
- p++;
- }else {
- delete (*p);
- p = mChildParticles.erase(p);
- }
- }
-
- if (!mAlive && mChildParticles.empty() && mAutoDelete)
- {
- return false;
- };
-
- return true;
-}
-
-
-void Particle::draw(Graphics *graphics, int offsetX, int offsetY) const
-{
-}
-
-
-Particle*
-Particle::addEffect (std::string particleEffectFile, int pixelX, int pixelY)
-{
- Particle *newParticle = NULL;
-
- // XML parser initialisation stuff
- int size;
- ResourceManager *resman = ResourceManager::getInstance();
- char *data = (char*) resman->loadFile(particleEffectFile.c_str(), size);
-
- if (!data) {
- logger->log("Warning: Particle engine could not find %s !",
- particleEffectFile.c_str());
- return NULL;
- }
-
- xmlDocPtr doc = xmlParseMemory(data, size);
- free(data);
-
- if (!doc) {
- logger->log("Warning: Particle engine found syntax error in %s!",
- particleEffectFile.c_str());
- return NULL;
- }
-
- xmlNodePtr rootNode = xmlDocGetRootElement(doc);
- if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "effect")) {
- logger->log("Warning: %s is not a valid particle effect definition file!",
- particleEffectFile.c_str());
- return NULL;
- }
-
- // parse particles
- for_each_xml_child_node(effectChildNode, rootNode)
- {
- // We're only interested in particles
- if (!xmlStrEqual(effectChildNode->name, BAD_CAST "particle"))
- continue;
-
- // Determine the exact particle type
- xmlNodePtr node;
-
- // Animation
- if ((node = XML::findFirstChildByName(
- effectChildNode, "animation"))) {
- newParticle = new AnimationParticle(mMap, node);
- }
- // Image
- else if ((node = XML::findFirstChildByName(
- effectChildNode, "image"))) {
- Image *img= resman->getImage((const char*)
- node->xmlChildrenNode->content);
-
- newParticle = new ImageParticle(mMap, img);
- }
- // Other
- else {
- newParticle = new Particle(mMap);
- }
-
- // Read and set the basic properties of the particle
- int offsetX = XML::getProperty(effectChildNode, "position-x", 0);
- int offsetY = XML::getProperty(effectChildNode, "position-y", 0);
- int offsetZ = XML::getProperty(effectChildNode, "position-z", 0);
-
- int particleX = (int)mPosX + pixelX + offsetX;
- int particleY = (int)mPosY + pixelY + offsetY;
- int particleZ = (int)mPosZ + offsetZ;
-
- int lifetime = XML::getProperty(effectChildNode, "lifetime", -1);
-
- newParticle->setPosition(particleX, particleY, particleZ);
- newParticle->setLifetime(lifetime);
-
- // Look for additional emitters for this particle
- for_each_xml_child_node(emitterNode, effectChildNode)
- {
- if (!xmlStrEqual(emitterNode->name, BAD_CAST "emitter"))
- continue;
-
- ParticleEmitter *newEmitter;
- newEmitter = new ParticleEmitter(emitterNode, newParticle, mMap);
- newParticle->addEmitter(newEmitter);
- }
-
- mChildParticles.push_back(newParticle);
- }
-
- return newParticle;
-}
-
-
-Particle*
-Particle::addTextSplashEffect(std::string text,
- int colorR, int colorG, int colorB,
- gcn::Font *font, int x, int y)
-{
- Particle *newParticle = new TextParticle(mMap, text, colorR, colorG, colorB,
- font);
- newParticle->setPosition(x, y, 0);
- newParticle->setVector ( ((rand()%100) - 50) / 200.0f, //X Vector
- ((rand()%100) - 50) / 200.0f, //Y Vector
- ((rand()%100) / 200.0f) + 4.0f //Z Vector
- );
- newParticle->setGravity(0.1f);
- newParticle->setBounce(0.5f);
- newParticle->setLifetime(200);
- newParticle->setFadeOut(100);
-
- mChildParticles.push_back(newParticle);
-
- return newParticle;
-}
-
-
-void
-Particle::setMap(Map *map)
-{
- mMap = map;
- if (mMap) setSpriteIterator(mMap->addSprite(this));
-
- // TODO: Create map emitters based on emitter data in map data
-}
-
-
-Particle::~Particle()
-{
- //remove from map sprite list
- if (mMap) mMap->removeSprite(mSpriteIterator);
- //delete child emitters and child particles
- clear();
- Particle::particleCount--;
-}
-
-
-void
-Particle::clear()
-{
- std::for_each(mChildEmitters.begin(), mChildEmitters.end(),
- make_dtor(mChildEmitters));
- mChildEmitters.clear();
-
- std::for_each(mChildParticles.begin(), mChildParticles.end(),
- make_dtor(mChildParticles));
- mChildParticles.clear();
-}
+/* + * The Mana World + * Copyright 2006 The Mana World Development Team + * + * This file is part of The Mana World. + * + * The Mana World 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. + * + * The Mana World 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 The Mana World; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id$ + */ + +#include "particle.h" + +#include <cmath> + +#include "animationparticle.h" +#include "configuration.h" +#include "imageparticle.h" +#include "log.h" +#include "map.h" +#include "particleemitter.h" +#include "textparticle.h" + +#include "resources/resourcemanager.h" + +#include "utils/dtor.h" +#include "utils/fastsqrt.h" +#include "utils/xml.h" + +class Graphics; +class Image; + +int Particle::particleCount = 0; +int Particle::maxCount = 0; +int Particle::fastPhysics = 0; +int Particle::emitterSkip = 1; +const float Particle::PARTICLE_SKY = 800.0f; + +Particle::Particle(Map *map) : + mAlive(true), + mPosX(0.0f), mPosY(0.0f), mPosZ(0.0f), + mLifetimeLeft(-1), + mLifetimePast(0), + mFadeOut(0), + mFadeIn(0), + mAutoDelete(true), + mMap(map), + mVectorX(0.0f), mVectorY(0.0f), mVectorZ(0.0f), + mGravity(0.0f), + mRandomnes(0), + mBounce(0.0f), + mTarget(NULL), + mAcceleration(0.0f), + mInvDieDistance(-1.0f), + mMomentum(1.0f) +{ + Particle::particleCount++; + if (mMap) setSpriteIterator(mMap->addSprite(this)); +} + + +void +Particle::setupEngine() +{ + Particle::maxCount = (int)config.getValue("particleMaxCount", 3000); + Particle::fastPhysics = (int)config.getValue("particleFastPhysics", 0); + Particle::emitterSkip = (int)config.getValue("particleEmitterSkip", 0) + 1; + disableAutoDelete(); + logger->log("Particle engine set up"); +} + +bool +Particle::update() +{ + if (!mMap) return false; + + if (mLifetimeLeft == 0) + { + mAlive = false; + } + + if (mAlive) + { + // Update child emitters + if (mLifetimePast%Particle::emitterSkip == 0) + { + for ( EmitterIterator e = mChildEmitters.begin(); + e != mChildEmitters.end(); + e++ + ) + { + Particles newParticles = (*e)->createParticles(); + for ( ParticleIterator p = newParticles.begin(); + p != newParticles.end(); + p++ + ) + { + (*p)->moveBy(mPosX, mPosY, mPosZ); + mChildParticles.push_back (*p); + } + } + } + + if (mMomentum != 1.0f) + { + mVectorX *= mMomentum; + mVectorY *= mMomentum; + mVectorZ *= mMomentum; + } + + if (mTarget && mAcceleration != 0.0f) + { + float distX = mPosX - mTarget->getPosX(); + float distY = mPosY - mTarget->getPosY(); + float distZ = mPosZ - mTarget->getPosZ(); + float invHypotenuse; + + switch(Particle::fastPhysics) + { + case 1: + invHypotenuse = fastInvSqrt( + distX * distX + distY * distY + distZ * distZ); + break; + case 2: + invHypotenuse = 2.0f / + fabs(distX) + fabs(distY) + fabs(distZ); + break; + default: + invHypotenuse = 1.0f / sqrt( + distX * distX + distY * distY + distZ * distZ); + break; + } + + if (invHypotenuse) + { + if (mInvDieDistance > 0.0f && invHypotenuse > mInvDieDistance) + { + mAlive = false; + } + float accFactor = invHypotenuse * mAcceleration; + mVectorX -= distX * accFactor; + mVectorY -= distY * accFactor; + mVectorZ -= distZ * accFactor; + } + } + + if (mRandomnes > 0) + { + mVectorX += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVectorY += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVectorZ += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + } + + mVectorZ -= mGravity; + + // Update position + mPosX += mVectorX; + mPosY += mVectorY; + mPosZ += mVectorZ; + + // Update other stuff + if (mLifetimeLeft > 0) + { + mLifetimeLeft--; + } + mLifetimePast++; + + if (mPosZ > PARTICLE_SKY || mPosZ < 0.0f) + { + if (mBounce > 0.0f) + { + mPosZ *= -mBounce; + mVectorX *= mBounce; + mVectorY *= mBounce; + mVectorZ *= -mBounce; + } + else { + mAlive = false; + } + } + } + + // Update child particles + for ( ParticleIterator p = mChildParticles.begin(); + p != mChildParticles.end(); + + ) + { + if ((*p)->update()) + { + p++; + } else { + delete (*p); + p = mChildParticles.erase(p); + } + } + + if (!mAlive && mChildParticles.empty() && mAutoDelete) + { + return false; + } + + return true; +} + + +void Particle::draw(Graphics *graphics, int offsetX, int offsetY) const +{ +} + + +Particle* +Particle::addEffect(std::string particleEffectFile, int pixelX, int pixelY) +{ + Particle *newParticle = NULL; + + // XML parser initialisation stuff + int size; + ResourceManager *resman = ResourceManager::getInstance(); + char *data = (char*) resman->loadFile(particleEffectFile.c_str(), size); + + if (!data) { + logger->log("Warning: Particle engine could not find %s !", + particleEffectFile.c_str()); + return NULL; + } + + xmlDocPtr doc = xmlParseMemory(data, size); + free(data); + + if (!doc) { + logger->log("Warning: Particle engine found syntax error in %s!", + particleEffectFile.c_str()); + return NULL; + } + + xmlNodePtr rootNode = xmlDocGetRootElement(doc); + if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "effect")) + { + logger->log("Warning: %s is not a valid particle effect definition file!", + particleEffectFile.c_str()); + return NULL; + } + + // Parse particles + for_each_xml_child_node(effectChildNode, rootNode) + { + // We're only interested in particles + if (!xmlStrEqual(effectChildNode->name, BAD_CAST "particle")) + continue; + + // Determine the exact particle type + xmlNodePtr node; + + // Animation + if ((node = XML::findFirstChildByName( + effectChildNode, "animation"))) { + newParticle = new AnimationParticle(mMap, node); + } + // Image + else if ((node = XML::findFirstChildByName( + effectChildNode, "image"))) { + Image *img= resman->getImage((const char*) + node->xmlChildrenNode->content); + + newParticle = new ImageParticle(mMap, img); + } + // Other + else { + newParticle = new Particle(mMap); + } + + // Read and set the basic properties of the particle + int offsetX = XML::getProperty(effectChildNode, "position-x", 0); + int offsetY = XML::getProperty(effectChildNode, "position-y", 0); + int offsetZ = XML::getProperty(effectChildNode, "position-z", 0); + + int particleX = (int)mPosX + pixelX + offsetX; + int particleY = (int)mPosY + pixelY + offsetY; + int particleZ = (int)mPosZ + offsetZ; + + int lifetime = XML::getProperty(effectChildNode, "lifetime", -1); + + newParticle->setPosition(particleX, particleY, particleZ); + newParticle->setLifetime(lifetime); + + // Look for additional emitters for this particle + for_each_xml_child_node(emitterNode, effectChildNode) + { + if (!xmlStrEqual(emitterNode->name, BAD_CAST "emitter")) + continue; + + ParticleEmitter *newEmitter; + newEmitter = new ParticleEmitter(emitterNode, newParticle, mMap); + newParticle->addEmitter(newEmitter); + } + + mChildParticles.push_back(newParticle); + } + + return newParticle; +} + + +Particle* +Particle::addTextSplashEffect(std::string text, + int colorR, int colorG, int colorB, + gcn::Font *font, int x, int y) +{ + Particle *newParticle = new TextParticle(mMap, text, colorR, colorG, colorB, + font); + newParticle->setPosition(x, y, 0); + newParticle->setVector ( ((rand()%100) - 50) / 200.0f, // X vector + ((rand()%100) - 50) / 200.0f, // Y vector + ((rand()%100) / 200.0f) + 4.0f // Z vector + ); + newParticle->setGravity(0.1f); + newParticle->setBounce(0.5f); + newParticle->setLifetime(200); + newParticle->setFadeOut(100); + + mChildParticles.push_back(newParticle); + + return newParticle; +} + + +void +Particle::setMap(Map *map) +{ + mMap = map; + if (mMap) setSpriteIterator(mMap->addSprite(this)); + + // TODO: Create map emitters based on emitter data in map data +} + + +Particle::~Particle() +{ + // Remove from map sprite list + if (mMap) mMap->removeSprite(mSpriteIterator); + // Delete child emitters and child particles + clear(); + Particle::particleCount--; +} + + +void +Particle::clear() +{ + std::for_each(mChildEmitters.begin(), mChildEmitters.end(), + make_dtor(mChildEmitters)); + mChildEmitters.clear(); + + std::for_each(mChildParticles.begin(), mChildParticles.end(), + make_dtor(mChildParticles)); + mChildParticles.clear(); +} |