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https://github.com/scp-fs2open/fs2open.github.com.git
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asarium
d1a6b48beb
The current particle system uses dynamic allocation of particle instances for keeping track of particle instances. This adds unnecessary overhead in case the code does not need a handle to this particle which is the case in pretty much all instances. The new non-persistent particles are stored in a standard vector without dynamic allocation which should make the processing steps using this vector much faster and allow better scalability in case more particles are used by a mission.
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
#include "particle/particle.h"
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#include "particle/ParticleEffect.h"
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#include "particle/ParticleSource.h"
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#include "particle/effects/SingleParticleEffect.h"
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#include "bmpman/bmpman.h"
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/**
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* @defgroup particleEffects Particle Effects
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*
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* @ingroup particleSystems
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*/
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namespace particle {
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namespace effects {
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SingleParticleEffect::SingleParticleEffect(const SCP_string& name)
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: ParticleEffect(name) {}
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bool SingleParticleEffect::processSource(const ParticleSource* source) {
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if (!m_timing.continueProcessing(source)) {
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return false;
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}
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particle_info info;
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source->getOrigin()->applyToParticleInfo(info);
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info.vel = vmd_zero_vector;
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m_particleProperties.createParticle(info);
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// Continue processing this source
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return true;
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}
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void SingleParticleEffect::parseValues(bool nocreate) {
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m_particleProperties.parse(nocreate);
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m_timing = util::EffectTiming::parseTiming();
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}
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void SingleParticleEffect::pageIn() {
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m_particleProperties.pageIn();
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}
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void SingleParticleEffect::initializeSource(ParticleSource& source) {
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m_timing.applyToSource(&source);
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}
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SingleParticleEffect* SingleParticleEffect::createInstance(int effectID, float minSize, float maxSize,
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float lifetime) {
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Assertion(bm_is_valid(effectID), "Invalid effect id %d passed!", effectID);
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Assertion(minSize <= maxSize, "Maximum size %f is more than minimum size %f!", maxSize, minSize);
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Assertion(minSize >= 0.0f, "Minimum size may not be less than zero, got %f!", minSize);
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auto effectPtr = new SingleParticleEffect("");
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effectPtr->m_particleProperties.m_bitmap = effectID;
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effectPtr->m_particleProperties.m_radius = ::util::UniformFloatRange(minSize, maxSize);
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if (lifetime > 0.0f) {
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effectPtr->m_particleProperties.m_hasLifetime = true;
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effectPtr->m_particleProperties.m_lifetime = ::util::UniformFloatRange(lifetime);
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}
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return effectPtr;
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}
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}
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}
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