public void ReturnsOffsetEqualToRadius()
{
var subject = new RingProfile
{
Radius = 10f
};
var particles = ProfilesTestHelper.CreateParticleStructure();
subject.GetOffsetAndHeading(ref particles, 0);
var length = Math.Sqrt((particles.X[0] * particles.X[0]) + (particles.Y[0] * particles.Y[0]));
length.Should().BeApproximately(10f, 0.000001f);
}
public void WhenRadiateIsTrue_HeadingIsEqualToNormalizedOffset()
{
var subject = new RingProfile
{
Radius = 10f,
Radiate = true
};
var particles = ProfilesTestHelper.CreateParticleStructure();
subject.GetOffsetAndHeading(ref particles, 0);
particles.VX[0].Should().BeApproximately(particles.X[0] / 10f, 0.000001f);
particles.VY[0].Should().BeApproximately(particles.Y[0] / 10f, 0.000001f);
}