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#include "particle.h"
#include <QDebug>
QT_BEGIN_NAMESPACE
ParticleType::ParticleType(QSGItem *parent) :
QSGItem(parent),
m_system(0)
{
connect(this, SIGNAL(xChanged()),
this, SLOT(calcSystemOffset()));
connect(this, SIGNAL(yChanged()),
this, SLOT(calcSystemOffset()));
}
void ParticleType::setSystem(ParticleSystem *arg)
{
if (m_system != arg) {
m_system = arg;
if(m_system){
m_system->registerParticleType(this);
connect(m_system, SIGNAL(xChanged()),
this, SLOT(calcSystemOffset()));
connect(m_system, SIGNAL(yChanged()),
this, SLOT(calcSystemOffset()));
calcSystemOffset();
}
emit systemChanged(arg);
}
}
void ParticleType::load(ParticleData*)
{
}
void ParticleType::reload(ParticleData*)
{
}
void ParticleType::setCount(int c)
{
if(c == m_count)
return;
m_count = c;
emit countChanged();
}
int ParticleType::count()
{
return m_count;
}
int ParticleType::particleTypeIndex(ParticleData* d)
{
if(!m_particleStarts.contains(d->group)){
m_particleStarts.insert(d->group, m_lastStart);
m_lastStart += m_system->m_groupData[d->group]->size;
}
return m_particleStarts[d->group] + d->particleIndex;
}
void ParticleType::calcSystemOffset()
{
if(!m_system)
return;
QPointF lastOffset = m_systemOffset;
m_systemOffset = this->mapFromItem(m_system, QPointF());
if(lastOffset != m_systemOffset){
//Reload all particles
foreach(const QString &g, m_particles){
int gId = m_system->m_groupIds[g];
for(int i=0; i<m_system->m_groupData[gId]->size; i++)
reload(m_system->m_data[m_system->m_groupData[gId]->start + i]);
}
}
}
QT_END_NAMESPACE
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