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Diffstat (limited to 'src/particle/particle.cpp')
| -rw-r--r-- | src/particle/particle.cpp | 478 |
1 files changed, 478 insertions, 0 deletions
diff --git a/src/particle/particle.cpp b/src/particle/particle.cpp new file mode 100644 index 000000000..fa07fb235 --- /dev/null +++ b/src/particle/particle.cpp @@ -0,0 +1,478 @@ +/* + * The ManaPlus Client + * Copyright (C) 2006-2009 The Mana World Development Team + * Copyright (C) 2009-2010 The Mana Developers + * Copyright (C) 2011-2013 The ManaPlus Developers + * + * This file is part of The ManaPlus 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 "particle/particle.h" + +#include "configuration.h" +#include "resources/dye.h" +#include "logger.h" +#include "map.h" + +#include "particle/animationparticle.h" +#include "particle/particleemitter.h" +#include "particle/rotationalparticle.h" +#include "particle/textparticle.h" + +#include "resources/resourcemanager.h" + +#include "gui/sdlfont.h" + +#include "utils/dtor.h" +#include "utils/mathutils.h" + +#include <guichan/color.hpp> + +#include <algorithm> +#include <cmath> + +#include "debug.h" + +static const float SIN45 = 0.707106781f; + +class Graphics; +class Image; + +int Particle::particleCount = 0; +int Particle::maxCount = 0; +int Particle::fastPhysics = 0; +int Particle::emitterSkip = 1; +bool Particle::enabled = true; +const float Particle::PARTICLE_SKY = 800.0f; + +Particle::Particle(Map *const map) : + Actor(), + mAlpha(1.0f), + mLifetimeLeft(-1), + mLifetimePast(0), + mFadeOut(0), + mFadeIn(0), + mVelocity(), + mAlive(ALIVE), + mChildEmitters(), + mChildParticles(), + mDeathEffect(), + mGravity(0.0f), + mBounce(0.0f), + mAcceleration(0.0f), + mInvDieDistance(-1.0f), + mMomentum(1.0f), + mTarget(nullptr), + mRandomness(0), + mDeathEffectConditions(0x00), + mAutoDelete(true), + mAllowSizeAdjust(false), + mFollow(false) +{ + setMap(map); + Particle::particleCount++; +} + +Particle::~Particle() +{ + // Delete child emitters and child particles + clear(); + Particle::particleCount--; +} + +void Particle::setupEngine() +{ + Particle::maxCount = config.getIntValue("particleMaxCount"); + Particle::fastPhysics = config.getIntValue("particleFastPhysics"); + Particle::emitterSkip = config.getIntValue("particleEmitterSkip") + 1; + if (!Particle::emitterSkip) + Particle::emitterSkip = 1; + Particle::enabled = config.getBoolValue("particleeffects"); + disableAutoDelete(); + logger->log1("Particle engine set up"); +} + +bool Particle::draw(Graphics *const, const int, const int) const +{ + return false; +} + +bool Particle::update() +{ + if (!mMap) + return false; + + if (mLifetimeLeft == 0 && mAlive == ALIVE) + mAlive = DEAD_TIMEOUT; + + const Vector oldPos = mPos; + + if (mAlive == ALIVE) + { + // calculate particle movement + if (mMomentum != 1.0f) + mVelocity *= mMomentum; + + if (mTarget && mAcceleration != 0.0f) + { + Vector dist = mPos - mTarget->mPos; + dist.x *= SIN45; + float invHypotenuse; + + switch (Particle::fastPhysics) + { + case 1: + invHypotenuse = fastInvSqrt( + dist.x * dist.x + dist.y * dist.y + dist.z * dist.z); + break; + case 2: + if (!dist.x) + { + invHypotenuse = 0; + break; + } + + invHypotenuse = 2.0f / (static_cast<float>(fabs(dist.x)) + + static_cast<float>(fabs(dist.y)) + + static_cast<float>(fabs(dist.z))); + break; + default: + invHypotenuse = 1.0f / static_cast<float>(sqrt( + dist.x * dist.x + dist.y * dist.y + dist.z * dist.z)); + break; + } + + if (invHypotenuse) + { + if (mInvDieDistance > 0.0f && invHypotenuse > mInvDieDistance) + mAlive = DEAD_IMPACT; + const float accFactor = invHypotenuse * mAcceleration; + mVelocity -= dist * accFactor; + } + } + + if (mRandomness > 0) + { + mVelocity.x += static_cast<float>((rand() % mRandomness - rand() + % mRandomness)) / 1000.0f; + mVelocity.y += static_cast<float>((rand() % mRandomness - rand() + % mRandomness)) / 1000.0f; + mVelocity.z += static_cast<float>((rand() % mRandomness - rand() + % mRandomness)) / 1000.0f; + } + + mVelocity.z -= mGravity; + + // Update position + mPos.x += mVelocity.x; + mPos.y += mVelocity.y * SIN45; + mPos.z += mVelocity.z * SIN45; + + // Update other stuff + if (mLifetimeLeft > 0) + mLifetimeLeft--; + + mLifetimePast++; + + if (mPos.z < 0.0f) + { + if (mBounce > 0.0f) + { + mPos.z *= -mBounce; + mVelocity *= mBounce; + mVelocity.z = -mVelocity.z; + } + else + { + mAlive = DEAD_FLOOR; + } + } + else if (mPos.z > PARTICLE_SKY) + { + mAlive = DEAD_SKY; + } + + // Update child emitters + if (Particle::emitterSkip && (mLifetimePast - 1) + % Particle::emitterSkip == 0) + { + FOR_EACH (EmitterConstIterator, e, mChildEmitters) + { + Particles newParticles = (*e)->createParticles(mLifetimePast); + FOR_EACH (ParticleConstIterator, it, newParticles) + { + Particle *const p = *it; + p->moveBy(mPos); + mChildParticles.push_back(p); + } + } + } + } + + // create death effect when the particle died + if (mAlive != ALIVE && mAlive != DEAD_LONG_AGO) + { + if ((mAlive & mDeathEffectConditions) > 0x00 && !mDeathEffect.empty()) + { + Particle *const deathEffect = particleEngine->addEffect( + mDeathEffect, 0, 0); + if (deathEffect) + deathEffect->moveBy(mPos); + } + mAlive = DEAD_LONG_AGO; + } + + const Vector change = mPos - oldPos; + + // Update child particles + + for (ParticleIterator p = mChildParticles.begin(), + p2 = mChildParticles.end(); p != p2; ) + { + Particle *const particle = *p; + // move particle with its parent if desired + if (particle->mFollow) + particle->moveBy(change); + + // update particle + if (particle->update()) + { + ++p; + } + else + { + delete particle; + p = mChildParticles.erase(p); + } + } + if (mAlive != ALIVE && mChildParticles.empty() && mAutoDelete) + return false; + + return true; +} + +void Particle::moveBy(const Vector &change) +{ + mPos += change; + FOR_EACH (ParticleConstIterator, p, mChildParticles) + { + Particle *const particle = *p; + if (particle->mFollow) + particle->moveBy(change); + } +} + +void Particle::moveTo(const float x, const float y) +{ + moveTo(Vector(x, y, mPos.z)); +} + +Particle *Particle::createChild() +{ + Particle *const newParticle = new Particle(mMap); + mChildParticles.push_back(newParticle); + return newParticle; +} + +Particle *Particle::addEffect(const std::string &particleEffectFile, + const int pixelX, const int pixelY, + const int rotation) +{ + Particle *newParticle = nullptr; + + const size_t pos = particleEffectFile.find('|'); + const std::string dyePalettes = (pos != std::string::npos) + ? particleEffectFile.substr(pos + 1) : ""; + XML::Document doc(particleEffectFile.substr(0, pos)); + const XmlNodePtr rootNode = doc.rootNode(); + + if (!rootNode || !xmlNameEqual(rootNode, "effect")) + { + logger->log("Error loading particle: %s", particleEffectFile.c_str()); + return nullptr; + } + + ResourceManager *const resman = ResourceManager::getInstance(); + + // Parse particles + for_each_xml_child_node(effectChildNode, rootNode) + { + // We're only interested in particles + if (!xmlNameEqual(effectChildNode, "particle")) + continue; + + // Determine the exact particle type + XmlNodePtr node; + + // Animation + if ((node = XML::findFirstChildByName(effectChildNode, "animation"))) + { + newParticle = new AnimationParticle(mMap, node, dyePalettes); + } + // Rotational + else if ((node = XML::findFirstChildByName( + effectChildNode, "rotation"))) + { + newParticle = new RotationalParticle(mMap, node, dyePalettes); + } + // Image + else if ((node = XML::findFirstChildByName(effectChildNode, "image"))) + { + std::string imageSrc = reinterpret_cast<const char*>( + node->xmlChildrenNode->content); + if (!imageSrc.empty() && !dyePalettes.empty()) + Dye::instantiate(imageSrc, dyePalettes); + Image *const img = resman->getImage(imageSrc); + + newParticle = new ImageParticle(mMap, img); + } + // Other + else + { + newParticle = new Particle(mMap); + } + + // Read and set the basic properties of the particle + const float offsetX = static_cast<float>(XML::getFloatProperty( + effectChildNode, "position-x", 0)); + const float offsetY = static_cast<float>(XML::getFloatProperty( + effectChildNode, "position-y", 0)); + const float offsetZ = static_cast<float>(XML::getFloatProperty( + effectChildNode, "position-z", 0)); + const Vector position(mPos.x + static_cast<float>(pixelX) + offsetX, + mPos.y + static_cast<float>(pixelY) + offsetY, + mPos.z + offsetZ); + newParticle->moveTo(position); + + const int lifetime = XML::getProperty(effectChildNode, "lifetime", -1); + newParticle->setLifetime(lifetime); + const bool resizeable = "false" != XML::getProperty(effectChildNode, + "size-adjustable", "false"); + + newParticle->setAllowSizeAdjust(resizeable); + + // Look for additional emitters for this particle + for_each_xml_child_node(emitterNode, effectChildNode) + { + if (xmlNameEqual(emitterNode, "emitter")) + { + ParticleEmitter *const newEmitter = new ParticleEmitter( + emitterNode, newParticle, mMap, rotation, dyePalettes); + newParticle->addEmitter(newEmitter); + } + else if (xmlNameEqual(emitterNode, "deatheffect")) + { + const std::string deathEffect = reinterpret_cast<const char*>( + emitterNode->xmlChildrenNode->content); + + char deathEffectConditions = 0x00; + if (XML::getBoolProperty(emitterNode, "on-floor", true)) + { + deathEffectConditions += static_cast<signed char>( + Particle::DEAD_FLOOR); + } + if (XML::getBoolProperty(emitterNode, "on-sky", true)) + { + deathEffectConditions += static_cast<signed char>( + Particle::DEAD_SKY); + } + if (XML::getBoolProperty(emitterNode, "on-other", false)) + { + deathEffectConditions += static_cast<signed char>( + Particle::DEAD_OTHER); + } + if (XML::getBoolProperty(emitterNode, "on-impact", true)) + { + deathEffectConditions += static_cast<signed char>( + Particle::DEAD_IMPACT); + } + if (XML::getBoolProperty(emitterNode, "on-timeout", true)) + { + deathEffectConditions += static_cast<signed char>( + Particle::DEAD_TIMEOUT); + } + newParticle->setDeathEffect( + deathEffect, deathEffectConditions); + } + } + + mChildParticles.push_back(newParticle); + } + + return newParticle; +} + +Particle *Particle::addTextSplashEffect(const std::string &text, + const int x, const int y, + const gcn::Color *const color, + gcn::Font *const font, + const bool outline) +{ + Particle *const newParticle = new TextParticle( + mMap, text, color, font, outline); + newParticle->moveTo(static_cast<float>(x), static_cast<float>(y)); + newParticle->setVelocity( + static_cast<float>((rand() % 100) - 50) / 200.0f, // X + static_cast<float>((rand() % 100) - 50) / 200.0f, // Y + (static_cast<float>((rand() % 100)) / 200.0f) + 4.0f); // Z + + newParticle->setGravity(0.1f); + newParticle->setBounce(0.5f); + newParticle->setLifetime(200); + newParticle->setFadeOut(100); + + mChildParticles.push_back(newParticle); + + return newParticle; +} + +Particle *Particle::addTextRiseFadeOutEffect(const std::string &text, + const int x, const int y, + const gcn::Color *const color, + gcn::Font *const font, + const bool outline) +{ + Particle *const newParticle = new TextParticle( + mMap, text, color, font, outline); + newParticle->moveTo(static_cast<float>(x), static_cast<float>(y)); + newParticle->setVelocity(0.0f, 0.0f, 0.5f); + newParticle->setGravity(0.0015f); + newParticle->setLifetime(300); + newParticle->setFadeOut(100); + newParticle->setFadeIn(0); + + mChildParticles.push_back(newParticle); + + return newParticle; +} + +void Particle::adjustEmitterSize(const int w, const int h) +{ + if (mAllowSizeAdjust) + { + FOR_EACH (EmitterConstIterator, e, mChildEmitters) + (*e)->adjustSize(w, h); + } +} + +void Particle::clear() +{ + delete_all(mChildEmitters); + mChildEmitters.clear(); + + delete_all(mChildParticles); + mChildParticles.clear(); +} |