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127 lines
4.2 KiB
127 lines
4.2 KiB
/*
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* Copyright (c) 2010-2014 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "particle.h"
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#include "particlesystem.h"
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#include <framework/core/clock.h>
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ParticleSystem::ParticleSystem()
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{
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m_finished = false;
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m_lastUpdateTime = g_clock.seconds();
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}
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void ParticleSystem::load(const OTMLNodePtr& node)
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{
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for(const OTMLNodePtr& childNode : node->children()) {
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if(childNode->tag() == "Emitter") {
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ParticleEmitterPtr emitter = ParticleEmitterPtr(new ParticleEmitter());
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emitter->load(childNode);
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m_emitters.push_back(emitter);
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}
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else if(childNode->tag().find("Affector") != std::string::npos) {
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ParticleAffectorPtr affector;
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if(childNode->tag() == "GravityAffector")
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affector = ParticleAffectorPtr(new GravityAffector);
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else if(childNode->tag() == "AttractionAffector")
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affector = ParticleAffectorPtr(new AttractionAffector);
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if(affector) {
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affector->load(childNode);
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m_affectors.push_back(affector);
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}
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}
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}
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}
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void ParticleSystem::addParticle(const ParticlePtr& particle)
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{
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m_particles.push_back(particle);
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}
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void ParticleSystem::render()
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{
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for(auto it = m_particles.begin(), end = m_particles.end(); it != end; ++it)
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(*it)->render();
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g_painter->resetCompositionMode();
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}
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void ParticleSystem::update()
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{
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static const float delay = 0.0166; // 60 updates/s
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// check time
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float elapsedTime = g_clock.seconds() - m_lastUpdateTime;
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if(elapsedTime < delay)
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return;
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// check if finished
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if(m_particles.empty() && m_emitters.empty()) {
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m_finished = true;
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return;
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}
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m_lastUpdateTime = g_clock.seconds() - std::fmod(elapsedTime, delay);
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auto self = static_self_cast<ParticleSystem>();
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for(int i = 0; i < std::floor(elapsedTime / delay); ++i) {
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// update emitters
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for(auto it = m_emitters.begin(); it != m_emitters.end();) {
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const ParticleEmitterPtr& emitter = *it;
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if(emitter->hasFinished()) {
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it = m_emitters.erase(it);
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} else {
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emitter->update(delay, self);
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++it;
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}
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}
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// update affectors
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for(auto it = m_affectors.begin(); it != m_affectors.end();) {
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const ParticleAffectorPtr& affector = *it;
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if(affector->hasFinished()) {
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it = m_affectors.erase(it);
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} else {
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affector->update(delay);
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++it;
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}
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}
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// update particles
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for(auto it = m_particles.begin(); it != m_particles.end();) {
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const ParticlePtr& particle = *it;
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if(particle->hasFinished()) {
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it = m_particles.erase(it);
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} else {
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// pass particles through affectors
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for(const ParticleAffectorPtr& particleAffector : m_affectors)
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particleAffector->updateParticle(particle, delay);
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particle->update(delay);
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++it;
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}
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}
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}
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}
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