public void Apply(AyParticle particle)
{
if (particle.Position.X - particle.Size < x1 || particle.Position.X + particle.Size > x2)
{
particle.Velocity.X = -particle.Velocity.X;
}
if (particle.Position.Y - particle.Size < y1 || particle.Position.Y + particle.Size > y2)
{
particle.Velocity.Y = -particle.Velocity.Y;
}
}
public void emit(AyParticle particle)
{
particles.Add(particle);
}
