public override bool Simulate(float dt)
{
dt = MathUtils.Clamp(dt, 0f, 0.1f);
float num = MathUtils.Pow(0.015f, dt);
m_time += dt;
bool flag = false;
for (int i = 0; i < base.Particles.Length; i++)
{
Particle particle = base.Particles[i];
if (!particle.IsActive)
{
continue;
}
flag = true;
particle.Position += particle.Velocity * dt;
particle.Velocity.Y += -10f * dt;
particle.Velocity *= num;
particle.Color *= MathUtils.Saturate(particle.TimeToLive);
particle.TimeToLive -= dt;
particle.TextureSlot = (int)(3.99f * particle.TimeToLive / particle.Duration);
particle.FlipX = (m_random.Sign() > 0);
particle.FlipY = (m_random.Sign() > 0);
if (particle.TimeToLive <= 0f || particle.Size.X <= 0f)
{
particle.IsActive = false;
continue;
}
int cellValue = m_subsystemTerrain.Terrain.GetCellValue(Terrain.ToCell(particle.Position.X), Terrain.ToCell(particle.Position.Y), Terrain.ToCell(particle.Position.Z));
int num2 = Terrain.ExtractContents(cellValue);
if (num2 == 0)
{
continue;
}
Block block = BlocksManager.Blocks[num2];
if (block.IsCollidable)
{
particle.IsActive = true;
}
else if (block is MagmaBlock)
{
int level = FluidBlock.GetLevel(Terrain.ExtractData(cellValue));
float levelHeight = ((MagmaBlock)block).GetLevelHeight(level);
if (particle.Position.Y <= MathUtils.Floor(particle.Position.Y) + levelHeight)
{
particle.Velocity.Y = 0f;
float num3 = Vector2.Distance(new Vector2(particle.Position.X, particle.Position.Z), new Vector2(m_position.X, m_position.Z));
float num4 = 0.02f * MathUtils.Sin(2f * num3 + 10f * m_time);
particle.Position.Y = MathUtils.Floor(particle.Position.Y) + levelHeight + num4;
particle.TimeToLive -= 1f * dt;
particle.Size -= new Vector2(0.04f * dt);
}
}
}
return(!flag);
}
