TEST_F(ParticleTest, testParticleSystem) {
ParticleSystem system(10000);
TestParticleEnv env;
const int bubbles = 10000;
for (int i = 0; i < bubbles; ++i) {
system.spawn(ParticlePtr(new Bubble(env)));
}
ASSERT_EQ(bubbles, system.getParticleAmount());
ASSERT_TRUE(system.hasParticles());
system.update(1);
system.render(&_testFrontend, 0, 0, 1.0f);
system.clear();
ASSERT_FALSE(system.hasParticles());
}
void Emitter::Play() {
if(particles.empty() && maxParticles > 0) return;
for(int i = 0; i < emissionRate && (!particles.empty() || maxParticles == 0); i++) {
ParticlePtr particle;
if(maxParticles > 0) {
particle = particles.front();
particles.pop_front();
} else {
particle = ParticlePtr(new Particle());
}
InitParticle(particle);
emittedParticles.push_front(particle);
particle->SetIsVisible(true);
}
}
void ParticleSystem::fuel(int particles, sf::Vector2f ySpawnRange, sf::Vector2f xSpawnRange) {
for (int i = 0; i < particles; i++) {
/* Randomizer initialization */
std::random_device rd;
std::mt19937 gen(rd());
UniRealDist yposition(ySpawnRange.x, ySpawnRange.y);
UniRealDist xposition(xSpawnRange.x, xSpawnRange.y);
UniRealDist yspeed(10.0f, 40.0f);
m_particleSpeed = yspeed(gen);
/* Generate a new particle and put it at the generation point */
Particle *particle;
particle = new Particle();
particle->drawVertex.position.x = xposition(gen);
particle->drawVertex.position.y = yposition(gen);
particle->vel.x = 0.0f;
particle->vel.y = 1.0f;
/*
switch (m_shape) {
case Shape::CIRCLE: {
// Generate a random angle
UniRealDist randomAngle(0.0f, (2.0f * 3.14159265));
float angle = randomAngle(gen);
// Use the random angle as a thrust vector for the particle
// UniRealDist randomAngleCos(0.0f, cos(angle));
// UniRealDist randomAngleSin(0.0f, sin(angle));
particle->vel.x = (float)(rand() % 100) * 0.01f; // randomAngleCos(gen);
particle->vel.y = (float)(rand() % 100) * 0.01f; // randomAngleSin(gen);
break;
}
case Shape::SQUARE: {
// Square generation
UniRealDist randomSide(-1.0f, 1.0f);
particle->vel.x = randomSide(gen);
particle->vel.y = randomSide(gen);
break;
}
default: {
particle->vel.x = 0.5f; // Easily detected
particle->vel.y = 0.5f; // Easily detected
}
}
*/
// We don't want lame particles. Reject, start over.
if (particle->vel.x == 0.0f && particle->vel.y == 0.0f) {
delete particle;
continue;
}
/* Randomly change the colors of the particles */
const auto a = (((m_particleSpeed - 10.0f) / 30.0f) * 255.0f) + 0;
particle->drawVertex.color.r = 255;
particle->drawVertex.color.g = 255 - a;
particle->drawVertex.color.b = 255 - a;
particle->drawVertex.color.a = 255;
m_particles.push_back(ParticlePtr(particle));
}
return;
}
