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Implemented Spawn and Remove function for particles. Also added a Particle component.

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Stiffly
2014-04-22 16:52:14 +02:00
parent 2efb5405eb
commit 55221cca12
7 changed files with 82 additions and 18 deletions
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src/Systems/ParticleSystem.cpp
+39 -8
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@@ -3,9 +3,10 @@
#include "World.h"
void Systems::ParticleSystem::Update(double dt)
{
m_TimeSinceLastSpawn += dt;
}
void Systems::ParticleSystem::UpdateEntity(double dt, EntityID entity, EntityID parent)
@@ -13,26 +14,56 @@ void Systems::ParticleSystem::UpdateEntity(double dt, EntityID entity, EntityID
auto transformComponent = m_World->GetComponent<Components::Transform>(entity, "Transform");
if(!transformComponent)
return;
auto emitterComponent = m_World->GetComponent<Components::ParticleEmitter>(entity, "ParticleEmitter");
if(emitterComponent)
{
if(m_TimeSinceLastSpawn > emitterComponent->SpawnFrequency)
{
SpawnParticles(entity, emitterComponent->SpawnCount, emitterComponent->SpreadAngle);
m_TimeSinceLastSpawn = 0;
}
std::list<ParticleData>::iterator it;
for(it = m_ParticleEmitter[entity].begin(); it == m_ParticleEmitter[entity].end();)
{
it->TimeLived += dt;
auto particleComponent = m_World->GetComponent<Components::Particle>(it->ParticleID, "Particle");
if(it->TimeLived > particleComponent->LifeTime)
{
m_ParticleEmitter[entity].erase(it);
break;
}
else
{
it++;
}
}
}
}
void Systems::ParticleSystem::RegisterComponents(ComponentFactory* cf)
{
cf->Register("ParticleEmitter", []() { return new Components::ParticleEmitter(); });
cf->Register("Particle", []() { return new Components::Particle(); });
}
void Systems::ParticleSystem::SpawnParticles()
void Systems::ParticleSystem::SpawnParticles(EntityID emitterID, float spawnCount, float spreadAngle)
{
for(int i = 0; i < 100; i++)
std::list<EntityID> particles;
for(int i = 0; i < spawnCount; i++)
{
auto particle = m_World->CreateEntity();
auto transform = m_World->AddComponent<Components::Transform>(particle, "Transform");
auto ent = m_World->CreateEntity();
auto transform = m_World->AddComponent<Components::Transform>(ent, "Transform");
transform->Position = glm::vec3(0);
auto particle = m_World->AddComponent<Components::Particle>(ent, "Particle");
particle->LifeTime = 4;
ParticleData data;
data.ParticleID = ent;
data.TimeLived = 0;
m_ParticleEmitter[emitterID].push_back(data);
}
}