private static bool IsVisible(WaterRaindropsIME.Droplet droplet)
{
bool flag = true;
flag &= (droplet.Position.x >= 0f && droplet.Position.x <= 1f);
return(flag & (droplet.Position.y >= 0f && droplet.Position.y <= 1f));
}
private void OnDropletUpdate(ref WaterRaindropsIME.Droplet droplet)
{
Vector2 position = droplet.Position;
Vector2 velocity = droplet.Velocity;
droplet.Life -= Time.fixedDeltaTime;
if (droplet.Volume < 0.2f)
{
return;
}
Vector4 vector = base.transform.worldToLocalMatrix * this.Force;
Vector2 a = new Vector2(vector.x, -vector.y);
Vector2 b = new Vector2(this.Tracking.Force.x, this.Tracking.Force.y);
Vector2 a2 = Vector2.zero;
if (this._Friction != null)
{
a2 = this._Friction[(int)(position.x * (float)(this._Target.width - 1)), (int)(position.y * (float)(this._Target.height - 1))];
}
float magnitude = velocity.magnitude;
Vector2 normalized = velocity.normalized;
Vector2 b2 = -normalized * ((magnitude + 1f) * (magnitude + 1f)) * this.AirFriction;
Vector2 b3 = -a2 * this.WindowFrictionMultiplier;
Vector2 a3 = a + b + b2 + b3;
Vector2 a4 = a3 / droplet.Volume;
droplet.Velocity += a4 * Time.deltaTime;
droplet.Position += droplet.Velocity * Time.deltaTime;
float num = Vector3.Distance(droplet.Position, position);
float num2 = num * this.VolumeLoss + 0.001f;
droplet.Volume -= num2;
}
private void Advance()
{
this._Droplets.RemoveAll((WaterRaindropsIME.Droplet x) => !WaterRaindropsIME.IsVisible(x) || x.Life <= 0f || x.Volume <= 0f);
for (int i = 0; i < this._Droplets.Count; i++)
{
WaterRaindropsIME.Droplet droplet = this._Droplets[i];
this.OnDropletUpdate(ref droplet);
if (!WaterRaindropsIME.IsVisible(droplet))
{
this._Droplets[i] = droplet;
}
else
{
this.Draw(i, droplet.Position, droplet.Volume, droplet.Velocity);
this._Droplets[i] = droplet;
}
}
}
