public void WhenBufferIsSequential_CopiesParticlesInOrder()
{
unsafe
{
var subject = new ParticleBuffer(10);
var count = subject.Release(5);
var index = subject.Index;
do
{
subject.Particles.Age[index] = 1f;
index++;
}
while (count-- > 0);
var destination = new float[10];
fixed (float* buffer = destination)
{
subject.CopyTo((IntPtr)buffer);
}
destination[0].Should().BeApproximately(1f, 0.0001f);
destination[1].Should().BeApproximately(1f, 0.0001f);
destination[2].Should().BeApproximately(1f, 0.0001f);
destination[3].Should().BeApproximately(1f, 0.0001f);
destination[4].Should().BeApproximately(1f, 0.0001f);
}
}
public void WhenSomeParticlesReleased_ReturnsAvailableCount()
{
var subject = new ParticleBuffer(100);
int index;
subject.Release(10);
subject.Available.Should().Be(90);
}
public void WhenAllParticlesReleased_ReturnsZero()
{
var subject = new ParticleBuffer(100);
int index;
subject.Release(100);
subject.Available.Should().Be(0);
}
public Emitter(int capacity, TimeSpan term, Profile profile)
{
_term = (float)term.TotalSeconds;
Buffer = new ParticleBuffer(capacity);
Profile = profile;
Modifiers = new ModifierCollection();
ModifierExecutionStrategy = ModifierExecutionStrategy.Parallel;
Parameters = new ReleaseParameters();
}
public void WhenNoParticlesReleased_ReturnsBufferSize()
{
var subject = new ParticleBuffer(100);
subject.Available.Should().Be(100);
}
public void WhenPassedReasonableQuantity_ReturnsNumberReleased()
{
var subject = new ParticleBuffer(100);
int index;
var count = subject.Release(50);
count.Should().Be(50);
}
public void WhenPassedImpossibleQuantity_ReturnsNumberActuallyReleased()
{
var subject = new ParticleBuffer(100);
int index;
var count = subject.Release(200);
count.Should().Be(100);
}
public void WhenPassedReasonableNumber_ReclaimsParticles()
{
var subject = new ParticleBuffer(100);
unsafe
{
int index;
subject.Release(100);
}
subject.Count.Should().Be(100);
subject.Reclaim(50);
subject.Count.Should().Be(50);
}
public void IsIdempotent()
{
var subject = new ParticleBuffer(100);
subject.Dispose();
subject.Dispose();
}
public void WhenSomeParticlesReleased_ReturnsCount()
{
var subject = new ParticleBuffer(100);
unsafe
{
int index;
subject.Release(10);
}
subject.Count.Should().Be(10);
}
public void WhenNoParticlesReleased_ReturnsZero()
{
var subject = new ParticleBuffer(100);
subject.Count.Should().Be(0);
}
