public void TestShieldEffect()
{
r.SetCameraPosition(new Vector3(0, 0, 5), new Vector3(0, 0, 0));
var playbackSpeed = 0.3f;
var effect = r.CreateParticleEffect();
var emitter = effect.CreateCustomEmitter(1 / 300f / playbackSpeed, p =>
{
p.StartPosition = new Vector3(sampler.RandomPointOnCircle(), 0) * 0.1f;
p.StartVelocity = new Vector3(sampler.RandomPointOnCircle(), 0);
p.Size = 0.05f;
p.Duration = 1 / 3f / playbackSpeed;
});
effect.CalculatePosition = p =>
{
var lifeTime = (effect.CurrentTime - p.SpawnTime) * 3 * playbackSpeed;
var magicNumber = 0.4f;
var startAngle = p.StartVelocity.X * 1000;
var endAngle = p.StartVelocity.Y * 1000 % magicNumber + (1 - magicNumber);
var ret = p.StartPosition;
ret.X += (float)Math.Pow(lifeTime, 0.8f) * (float)Math.Cos(Math.Sqrt(lifeTime * 10 * endAngle) + startAngle);
ret.Y += (float)Math.Pow(lifeTime, 0.8f) * (float)Math.Sin(Math.Sqrt(lifeTime * 10 * endAngle) + startAngle);
ret.Z += ret.TakeXY().Length() * 0.5f;
return(ret);
};
loopEffect(() => { emitter.Start(); }, () =>
{
emitter.Stop();
});
}
public BeamSpellEffect(ParticleEffect effect, GeometrySampler sampler)
{
this.effect = effect;
this.sampler = sampler;
emitter = effect.CreateCustomEmitter(1 / 100f, p =>
{
p.StartPosition = seeder.NextFloat(0, 0.3f) * new Vector3(sampler.RandomPointOnCircle(), 0);
p.Color = new Color4(1, 0, 0);
p.Size = 0.1f;
p.StartVelocity = new Vector3(0, 0, seeder.NextFloat(-1, -1)) * 50;
p.Duration = 1f;
});
}
public void TestCircle()
{
test.SetCameraPosition(new Vector3(0, 0, 3), new Vector3());
displaySamples(1000, () => new Vector3(s.RandomPointOnCircle(), 0));
}
