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Angular velocity support

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This commit is contained in:
Stiffly
2014-04-28 19:12:51 +02:00
parent ea4b7b005e
commit 68761c9291
5 changed files with 43 additions and 23 deletions
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src/Components/Particle.h
+1 -1
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@@ -15,7 +15,7 @@ namespace Components
std::vector<float> ScaleSpectrum;
double LifeTime;
std::vector<glm::vec3> VelocitySpectrum;
std::vector<glm::vec3> AngularVelocitySpectrum;
std::vector<float> AngularVelocitySpectrum;
virtual Particle* Clone() const override { return new Particle(*this); }
};
src/Components/ParticleEmitter.h
+1 -1
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@@ -29,7 +29,7 @@ struct ParticleEmitter : Component
float SpreadAngle;
double LifeTime;
std::vector<glm::vec3> VelocitySpectrum;
std::vector<glm::vec3> AngularVelocitySpectrum;
std::vector<float> AngularVelocitySpectrum;
virtual ParticleEmitter* Clone() const override { return new ParticleEmitter(*this); }
src/GameWorld.cpp
+3 -3
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@@ -101,9 +101,9 @@ void GameWorld::Initialize()
transform->Position = glm::vec3(i * 10, 20, 0);
auto emitter = AddComponent<Components::ParticleEmitter>(ent, "ParticleEmitter");
emitter->LifeTime = 4;
emitter->SpawnCount = 4;
emitter->SpreadAngle = glm::pi<float>()/4;
emitter->SpawnFrequency = 0.08;
emitter->SpawnCount = 1;
emitter->SpreadAngle = glm::pi<float>()/20;
emitter->SpawnFrequency = 0.008;
auto model = AddComponent<Components::Model>(ent, "Model");
model->ModelFile = "Models/Placeholders/PhysicsTest/PointLight.obj";
src/Systems/ParticleSystem.cpp
+32 -15
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@@ -47,19 +47,18 @@ void Systems::ParticleSystem::UpdateEntity(double dt, EntityID entity, EntityID
}
else
{
//FIX: calculate once
float timeProgress = timeLived / particleComponent->LifeTime;
// The difference between the start and end value
/*float deltaColor = glm::abs(particleComponent->ColorSpectrum[0].r - particleComponent->ColorSpectrum[1].r);
it->color.r = particleComponent->ColorSpectrum[0].r + deltaColor * timeProgress;
deltaColor = glm::abs(particleComponent->ColorSpectrum[0].g - particleComponent->ColorSpectrum[1].g);
it->color.g = particleComponent->ColorSpectrum[0].g + deltaColor * timeProgress;
deltaColor = glm::abs(particleComponent->ColorSpectrum[0].b - particleComponent->ColorSpectrum[1].b);
it->color.b = particleComponent->ColorSpectrum[0].b + deltaColor * timeProgress;*/
//ColorInterpolation(timeProgress, particleComponent->ColorSpectrum, color);
if(particleComponent->ScaleSpectrum.size() > 1)
ScaleInterpolation(timeProgress, particleComponent->ScaleSpectrum, transformComponent->Scale);
if(particleComponent->VelocitySpectrum.size() > 1)
VelocityInterpolation(timeProgress, particleComponent->VelocitySpectrum, transformComponent->Velocity);
if(particleComponent->AngularVelocitySpectrum.size() > 1)
AngularVelocityInterpolation(timeProgress, particleComponent->AngularVelocitySpectrum, it->AngularVelocity);
transformComponent->Orientation *= glm::angleAxis(it->AngularVelocity, glm::vec3(0, 0, 1));
transformComponent->Position += transformComponent->Velocity * (float)dt;
it++;
@@ -103,12 +102,12 @@ void Systems::ParticleSystem::SpawnParticles(EntityID emitterID)
auto particle = m_World->AddComponent<Components::Particle>(ent, "Particle");
particle->LifeTime = emitterComponent->LifeTime;
particle->ScaleSpectrum.push_back(4); //TEMP
particle->ScaleSpectrum.push_back(0); //TEMP
particle->ScaleSpectrum.push_back(1); //TEMP
particle->ScaleSpectrum.push_back(1); //TEMP
particle->VelocitySpectrum.push_back(particleTransform->Velocity); //TEMP
particle->VelocitySpectrum.push_back(testVel); //TEMP
// particle->AngularVelocitySpectrum.push_back();
// particle->AngularVelocitySpectrum.push_back();
//particle->AngularVelocitySpectrum.push_back(0.f);
particle->AngularVelocitySpectrum.push_back(-glm::pi<float>()/10);
// Color startColor = {.4f, .45f, .2f};
// particle->ColorSpectrum.push_back(startColor);
@@ -120,8 +119,7 @@ void Systems::ParticleSystem::SpawnParticles(EntityID emitterID)
ParticleData data;
data.ParticleID = ent;
data.SpawnTime = glfwGetTime();
// data.color = particle->ColorSpectrum[0];
// data.Scale = particle->ScaleSpectrum[0];
data.AngularVelocity = particle->AngularVelocitySpectrum[0];
m_ParticleEmitter[emitterID].push_back(data);
}
@@ -158,3 +156,22 @@ void Systems::ParticleSystem::VelocityInterpolation(double timeProgress, std::ve
deltaVelocity *= -1;
velocity.z = velocitySpectrum[0].z + deltaVelocity * timeProgress;
}
void Systems::ParticleSystem::ColorInterpolation(double timeProgress, std::vector<Color> colorSpectrum, Color &color)
{
float deltaColor = glm::abs(colorSpectrum[0].r - colorSpectrum[1].r);
color.r = colorSpectrum[0].r + deltaColor * timeProgress;
deltaColor = glm::abs(colorSpectrum[0].g - colorSpectrum[1].g);
color.g = colorSpectrum[0].g + deltaColor * timeProgress;
deltaColor = glm::abs(colorSpectrum[0].b - colorSpectrum[1].b);
color.b = colorSpectrum[0].b + deltaColor * timeProgress;
}
void Systems::ParticleSystem::AngularVelocityInterpolation(double timeProgress, std::vector<float> spectrum, float &angularVelocity)
{
float deltaAngularVelocity = glm::abs(spectrum[0] - spectrum[1]);
if(spectrum[0] > spectrum[1])
deltaAngularVelocity *= -1;
angularVelocity = spectrum[0] + deltaAngularVelocity * timeProgress;
}
src/Systems/ParticleSystem.h
+3
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@@ -20,6 +20,7 @@ namespace Systems
EntityID ParticleID;
double SpawnTime;
float Scale;
float AngularVelocity;
Color color;
};
@@ -35,6 +36,8 @@ private:
float RandomizeAngle(float spreadAngle);
void ScaleInterpolation(double timeProgress, std::vector<float> scaleSpectrum, glm::vec3 &scale);
void VelocityInterpolation(double timeProgress, std::vector<glm::vec3> velocitySpectrum, glm::vec3 &velocity);
void ColorInterpolation(double timeProgress, std::vector<Color> colorSpectrum, Color &color);
void AngularVelocityInterpolation(double timeProgress, std::vector<float> spectrum, float &angularVelocity);
void Billboard();
std::map<EntityID, std::list<ParticleData>> m_ParticleEmitter;
std::map<EntityID, double> m_TimeSinceLastSpawn;