public void WhenNotEnoughHeadroom_IncreasesActiveParticlesCountByRemainingParticles()
{
var subject = new Emitter(15, TimeSpan.FromSeconds(1), Profile.Point())
{
Parameters = new ReleaseParameters
{
Quantity = 10
}
};
subject.Trigger(new Coordinate(0f, 0f));
subject.ActiveParticles.Should().Be(10);
subject.Trigger(new Coordinate(0f, 0f));
subject.ActiveParticles.Should().Be(15);
}
public void WhenThereAreParticlesToExpire_DoesNotPassExpiredParticlesToModifiers()
{
var subject = new Emitter(100, TimeSpan.FromSeconds(1), Profile.Point())
{
Parameters = new ReleaseParameters
{
Quantity = 1
}
};
subject.Modifiers.Add(new AssertionModifier((particle, i) => particle.Age[i] <= 1f));
subject.Trigger(new Coordinate(0f, 0f));
subject.Update(0.5f);
subject.Trigger(new Coordinate(0f, 0f));
subject.Update(0.5f);
subject.Trigger(new Coordinate(0f, 0f));
subject.Update(0.5f);
}
public void WhenThereAreParticlesToExpire_DecreasesActiveParticleCount()
{
var subject = new Emitter(100, TimeSpan.FromSeconds(1), Profile.Point())
{
Parameters = new ReleaseParameters
{
Quantity = 1
}
};
subject.Trigger(new Coordinate(0f, 0f));
subject.ActiveParticles.Should().Be(1);
subject.Update(2f);
subject.ActiveParticles.Should().Be(0);
}
