private void ResetParticle(ref Particle p)
{
if (this.disposed)
{
throw new ObjectDisposedException("ParticleSystemRenderer");
}
if (!p.Alive)
{
p.Alive = true;
p.Life = TimeSpan.FromMilliseconds(this.random.NextDouble() * (this.numParticles * InitTimeMultipler)).TotalMilliseconds;
p.Position.X = 0;
p.Position.Y = 0;
p.Position.Z = 0;
p.Velocity.X = 0;
p.Velocity.Y = 0;
p.Velocity.Z = 0;
p.VelocityRotation = 0;
p.Angle = 0;
p.Size = 0;
p.TimeLife = 0;
}
else
{
// Life
if (this.settings.MinLife != this.settings.MaxLife)
{
TimeSpan time = TimeSpan.FromMilliseconds(MathHelper.Lerp(
(float)this.settings.MinLife.TotalMilliseconds,
(float)this.settings.MaxLife.TotalMilliseconds,
(float)this.random.NextDouble()));
p.TimeLife = time.TotalMilliseconds;
}
else
{
p.TimeLife = this.settings.MinLife.TotalMilliseconds;
}
p.Life = p.TimeLife;
// Velocity
if (this.settings.RandomVelocity != Vector3.Zero)
{
p.Velocity = this.settings.LocalVelocity;
p.Velocity.X = p.Velocity.X + (this.settings.RandomVelocity.X * (((float)this.random.NextDouble() * 2) - 1));
p.Velocity.Y = p.Velocity.Y + (this.settings.RandomVelocity.Y * (((float)this.random.NextDouble() * 2) - 1));
p.Velocity.Z = p.Velocity.Z + (this.settings.RandomVelocity.Z * (((float)this.random.NextDouble() * 2) - 1));
}
else
{
p.Velocity = this.settings.LocalVelocity;
}
p.Position = this.Transform.LocalWorld.Translation;
if (this.settings.EmitterSize != Vector2.Zero)
{
switch (this.settings.EmitterShape)
{
case ParticleSystem3D.Shape.Circle:
{
float radius = this.settings.EmitterSize.X > this.settings.EmitterSize.Y ? (this.settings.EmitterSize.X / 2) : (this.settings.EmitterSize.Y / 2);
double angle = this.random.NextDouble() * MathHelper.TwoPi;
float x = (float)Math.Cos(angle);
float y = (float)Math.Sin(angle);
p.Position.X = p.Position.X + (x * radius);
p.Position.Z = p.Position.Z + (y * radius);
break;
}
case ParticleSystem3D.Shape.FillCircle:
{
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float rnd1 = ((float)this.random.NextDouble() * 2) - 1;
float radius = this.settings.EmitterSize.X > this.settings.EmitterSize.Y ? (this.settings.EmitterSize.X / 2) : (this.settings.EmitterSize.Y / 2);
double angle = this.random.NextDouble() * MathHelper.TwoPi;
float x = (float)Math.Cos(angle);
float y = (float)Math.Sin(angle);
p.Position.X = p.Position.X + (x * radius * rnd0);
p.Position.Z = p.Position.Z + (y * radius * rnd1);
break;
}
case ParticleSystem3D.Shape.Rectangle:
{
int c = this.random.Next(4);
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float xside = this.settings.EmitterSize.X / 2;
float yside = this.settings.EmitterSize.Y / 2;
switch (c)
{
case 0:
p.Position.X = p.Position.X + xside;
p.Position.Z = p.Position.Z + (yside * rnd0);
break;
case 1:
p.Position.X = p.Position.X - xside;
p.Position.Z = p.Position.Z + (yside * rnd0);
break;
case 2:
p.Position.X = p.Position.X + (xside * rnd0);
p.Position.Z = p.Position.Z + yside;
break;
case 3:
default:
p.Position.X = p.Position.X + (xside * rnd0);
p.Position.Z = p.Position.Z - yside;
break;
}
break;
}
case ParticleSystem3D.Shape.FillRectangle:
{
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float rnd1 = ((float)this.random.NextDouble() * 2) - 1;
p.Position.X = p.Position.X + ((this.settings.EmitterSize.X / 2) * rnd0);
p.Position.Z = p.Position.Z + ((this.settings.EmitterSize.Y / 2) * rnd1);
break;
}
default:
{
throw new ArgumentException("Invalid particleSystem shape");
}
}
}
// Initial Angle
if (this.settings.InitialAngle.Distinct(0))
{
float randomAngle = ((float)this.random.NextDouble() * 2) - 1;
p.Angle = this.settings.InitialAngle * randomAngle;
}
// Velocity Rotation
if (this.settings.MinRotateSpeed.Distinct(this.settings.MaxRotateSpeed))
{
p.VelocityRotation = MathHelper.Lerp(this.settings.MinRotateSpeed, this.settings.MaxRotateSpeed, (float)this.random.NextDouble());
}
else
{
p.VelocityRotation = this.settings.MinRotateSpeed;
}
// Size
if (this.settings.MinSize.Distinct(this.settings.MaxSize))
{
p.Size = MathHelper.Lerp(this.settings.MinSize, this.settings.MaxSize, (float)this.random.NextDouble());
}
else
{
p.Size = this.settings.MinSize;
}
// Color
if (this.settings.MinColor != this.settings.MaxColor)
{
p.CurrentColor = Color.Lerp(ref this.settings.MinColor, ref this.settings.MaxColor, 1 - (float)this.random.NextDouble());
}
else
{
p.CurrentColor = this.settings.MinColor;
}
p.Color = p.CurrentColor;
Matrix.CreateFromYawPitchRoll(this.Transform.Rotation.Y, this.Transform.Rotation.X, this.Transform.Rotation.Z, out this.rotationMatrix);
}
}
/// <summary>
/// Calculates the local world.
/// </summary>
/// <param name="p">The p.</param>
/// <returns>World matrix.</returns>
/// <exception cref="ObjectDisposedException">ParticleSystemRenderer has been disposed.</exception>
private Matrix CalculateLocalWorld(ref Particle p)
{
if (this.disposed)
{
throw new ObjectDisposedException("ParticleSystemRenderer");
}
// Optimización del código
// Matrix matrix = Matrix.CreateRotationZ(p.Angle)
// * Matrix.CreateScale(p.Size)
// *Matrix.CreateBillboard(p.Position, RenderManager.Camera.Position, Vector3.Up, null);
Matrix matrix;
float cos = (float)Math.Cos(p.Angle);
float sin = (float)Math.Sin(p.Angle);
float scale = 0;
if (this.settings.EndDeltaScale.Equal(1))
{
scale = p.Size;
}
else
{
float age = 1 - (float)(p.Life / p.TimeLife);
scale = p.Size * (1 + ((this.settings.EndDeltaScale - 1) * age));
}
float cosscale = cos * scale;
float sinscale = sin * scale;
float negsinscale = -sin * scale;
Vector3 cameraPosition = this.RenderManager.Camera.Position;
Vector3 vector;
Vector3 vector2;
Vector3 vector3;
vector.X = p.Position.X - cameraPosition.X;
vector.Y = p.Position.Y - cameraPosition.Y;
vector.Z = p.Position.Z - cameraPosition.Z;
float num = vector.LengthSquared();
if (num < 0.0001f)
{
vector = Vector3.Forward;
}
else
{
Vector3.Multiply(ref vector, (float)(1f / ((float)Math.Sqrt((double)num))), out vector);
}
////Vector3 cameraUpVector = Vector3.Up;
// Vector3.Cross(ref cameraUpVector, ref vector, out vector3);
vector3.X = vector.Z;
vector3.Y = 0;
vector3.Z = -vector.X;
vector3.Normalize();
// Vector3.Cross(ref vector, ref vector3, out vector2);
vector2.X = (vector.Y * vector3.Z) - (vector.Z * vector3.Y);
vector2.Y = (vector.Z * vector3.X) - (vector.X * vector3.Z);
vector2.Z = (vector.X * vector3.Y) - (vector.Y * vector3.X);
matrix.M11 = (cosscale * vector3.X) + (sinscale * vector2.X);
matrix.M12 = (cosscale * vector3.Y) + (sinscale * vector2.Y);
matrix.M13 = (cosscale * vector3.Z) + (sinscale * vector2.Z);
matrix.M14 = 0f;
matrix.M21 = (negsinscale * vector3.X) + (cosscale * vector2.X);
matrix.M22 = (negsinscale * vector3.Y) + (cosscale * vector2.Y);
matrix.M23 = (negsinscale * vector3.Z) + (cosscale * vector2.Z);
matrix.M24 = 0f;
matrix.M31 = scale * vector.X;
matrix.M32 = scale * vector.Y;
matrix.M33 = scale * vector.Z;
matrix.M34 = 0f;
matrix.M41 = p.Position.X;
matrix.M42 = p.Position.Y;
matrix.M43 = p.Position.Z;
matrix.M44 = 1f;
return matrix;
}
/// <summary>
/// Calculates the local world.
/// </summary>
/// <param name="p">The p.</param>
/// <returns>World matrix.</returns>
/// <exception cref="ObjectDisposedException">ParticleSystemRenderer has been disposed.</exception>
private Matrix CalculateLocalWorld(ref Particle p)
{
if (this.disposed)
{
throw new ObjectDisposedException("ParticleSystemRenderer");
}
float cos = (float)Math.Cos(p.Angle);
float sin = (float)Math.Sin(p.Angle);
float scale;
if (this.settings.EndDeltaScale.Equal(1))
{
scale = p.Size;
}
else
{
float age = 1 - (float)(p.Life / p.TimeLife);
scale = p.Size * (1 + ((this.settings.EndDeltaScale - 1) * age));
}
float scaleCos = scale * cos;
float scaleSin = scale * sin;
Matrix matrix;
matrix.M11 = scaleCos;
matrix.M12 = scaleSin;
matrix.M13 = 0;
matrix.M14 = 0;
matrix.M21 = -scaleSin;
matrix.M22 = scaleCos;
matrix.M23 = 0;
matrix.M24 = 0;
matrix.M31 = 0f;
matrix.M32 = 0f;
matrix.M33 = 1f;
matrix.M34 = 0f;
matrix.M41 = p.Position.X;
matrix.M42 = p.Position.Y;
matrix.M43 = p.Position.Z;
matrix.M44 = 1f;
return matrix;
}
private void ResetParticle(ref Particle p)
{
if (this.disposed)
{
throw new ObjectDisposedException("ParticleSystemRenderer");
}
this.emitedParticle = true;
p.Alive = true;
if (this.settings.MinLife != this.settings.MaxLife)
{
float pLife = MathHelper.Lerp(
this.settings.MinLife,
this.settings.MaxLife,
(float)this.random.NextDouble());
p.TimeLife = pLife;
}
else
{
p.TimeLife = this.settings.MinLife;
}
p.Life = p.TimeLife;
// Velocity
if (this.settings.RandomVelocity != Vector2.Zero)
{
p.Velocity.X = this.settings.LocalVelocity.X + (this.settings.RandomVelocity.X * (((float)this.random.NextDouble() * 2) - 1));
p.Velocity.Y = this.settings.LocalVelocity.Y + (this.settings.RandomVelocity.Y * (((float)this.random.NextDouble() * 2) - 1));
}
else
{
p.Velocity.X = this.settings.LocalVelocity.X;
p.Velocity.Y = this.settings.LocalVelocity.Y;
}
p.Position = (this.Transform as Transform3D).Position;
p.StartTime = DateTime.Now.Ticks;
if (this.settings.EmitterSize != Vector3.Zero)
{
switch (this.settings.EmitterShape)
{
case ParticleSystem2D.Shape.Circle:
{
float radius = this.settings.EmitterSize.X > this.settings.EmitterSize.Y ? (this.settings.EmitterSize.X / 2) : (this.settings.EmitterSize.Y / 2);
double angle = this.random.NextDouble() * MathHelper.TwoPi;
float x = (float)Math.Cos(angle);
float y = (float)Math.Sin(angle);
p.Position.X = p.Position.X + (x * radius);
p.Position.Y = p.Position.Y + (y * radius);
break;
}
case ParticleSystem2D.Shape.FillCircle:
{
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float rnd1 = ((float)this.random.NextDouble() * 2) - 1;
float radius = this.settings.EmitterSize.X > this.settings.EmitterSize.Y ? (this.settings.EmitterSize.X / 2) : (this.settings.EmitterSize.Y / 2);
double angle = this.random.NextDouble() * MathHelper.TwoPi;
float x = (float)Math.Cos(angle);
float y = (float)Math.Sin(angle);
p.Position.X = p.Position.X + (x * radius * rnd0);
p.Position.Y = p.Position.Y + (y * radius * rnd1);
break;
}
case ParticleSystem2D.Shape.Rectangle:
{
int c = this.random.Next(4);
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float xside = this.settings.EmitterSize.X / 2;
float yside = this.settings.EmitterSize.Y / 2;
switch (c)
{
case 0:
p.Position.X = p.Position.X + xside;
p.Position.Y = p.Position.Y + (yside * rnd0);
break;
case 1:
p.Position.X = p.Position.X - xside;
p.Position.Y = p.Position.Y + (yside * rnd0);
break;
case 2:
p.Position.X = p.Position.X + (xside * rnd0);
p.Position.Y = p.Position.Y + yside;
break;
case 3:
default:
p.Position.X = p.Position.X + (xside * rnd0);
p.Position.Y = p.Position.Y - yside;
break;
}
break;
}
case ParticleSystem2D.Shape.FillRectangle:
{
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float rnd1 = ((float)this.random.NextDouble() * 2) - 1;
p.Position.X = p.Position.X + ((this.settings.EmitterSize.X / 2) * rnd0);
p.Position.Y = p.Position.Y + ((this.settings.EmitterSize.Y / 2) * rnd1);
break;
}
case ParticleSystem2D.Shape.FillBox:
{
float rnd0 = ((float)this.random.NextDouble() * 2) - 1;
float rnd1 = ((float)this.random.NextDouble() * 2) - 1;
float rnd2 = ((float)this.random.NextDouble() * 2) - 1;
p.Position.X = p.Position.X + ((this.settings.EmitterSize.X / 2) * rnd0);
p.Position.Y = p.Position.Y + ((this.settings.EmitterSize.Y / 2) * rnd1);
p.Position.Z = p.Position.Z + ((this.settings.EmitterSize.Z / 2) * rnd1);
break;
}
default:
{
throw new ArgumentException("Invalid particleSystem shape");
}
}
}
// Initial Angle
if (this.settings.InitialAngle.Distinct(0) || this.settings.InitialAngleVariation.Distinct(0))
{
float randomAngle = this.settings.InitialAngleVariation * (((float)this.random.NextDouble() * 2) - 1);
p.Angle = this.settings.InitialAngle + randomAngle;
}
// Velocity Rotation
if (this.settings.MinRotateSpeed.Distinct(this.settings.MaxRotateSpeed))
{
p.VelocityRotation = MathHelper.Lerp(this.settings.MinRotateSpeed, this.settings.MaxRotateSpeed, (float)this.random.NextDouble());
}
else
{
p.VelocityRotation = this.settings.MinRotateSpeed;
}
// Size
if (this.settings.MinSize.Distinct(this.settings.MaxSize))
{
p.Size = MathHelper.Lerp(this.settings.MinSize, this.settings.MaxSize, (float)this.random.NextDouble());
}
else
{
p.Size = this.settings.MinSize;
}
// Color
if (this.settings.MinColor != this.settings.MaxColor)
{
p.CurrentColor = Color.Lerp(this.settings.MinColor, this.settings.MaxColor, 1 - (float)this.random.NextDouble());
}
else
{
p.CurrentColor = this.settings.MinColor;
}
p.Color = p.CurrentColor;
p.CurrentIndex = -1;
Matrix.CreateFromYawPitchRoll(0, 0, this.Transform.Rotation, out this.rotationMatrix);
}
/// <summary>
/// Calculates the local world.
/// </summary>
/// <param name="p">The p.</param>
/// <returns>World matrix.</returns>
/// <exception cref="ObjectDisposedException">ParticleSystemRenderer has been disposed.</exception>
private Matrix CalculateLocalWorld(ref Particle p)
{
if (this.disposed)
{
throw new ObjectDisposedException("ParticleSystemRenderer");
}
////Matrix matrix = Matrix.CreateRotationZ(p.Angle)
//// * Matrix.CreateScale(p.Size)
//// * Matrix.CreateTranslation(p.Position);
float cos = (float)Math.Cos(p.Angle);
float sin = (float)Math.Sin(p.Angle);
float scale;
if (this.settings.EndDeltaScale.Equal(1))
{
scale = p.Size;
}
else
{
float age = 1 - (float)(p.Life / p.TimeLife);
scale = p.Size * (1 + ((this.settings.EndDeltaScale - 1) * age));
}
float scaleCos = scale * cos;
float scaleSin = scale * sin;
Matrix matrix;
if (!this.viewportEnabled)
{
matrix.M11 = scaleCos;
matrix.M12 = scaleSin;
matrix.M13 = 0;
matrix.M14 = 0;
matrix.M21 = -scaleSin;
matrix.M22 = scaleCos;
matrix.M23 = 0;
matrix.M24 = 0;
matrix.M31 = 0f;
matrix.M32 = 0f;
matrix.M33 = 1f;
matrix.M34 = 0f;
matrix.M41 = p.Position.X;
matrix.M42 = p.Position.Y;
matrix.M43 = 0;
matrix.M44 = 1f;
}
else
{
matrix.M11 = scaleCos * this.viewportScale.X;
matrix.M12 = scaleSin * this.viewportScale.Y;
matrix.M13 = 0;
matrix.M14 = 0;
matrix.M21 = -scaleSin * this.viewportScale.X;
matrix.M22 = scaleCos * this.viewportScale.Y;
matrix.M23 = 0;
matrix.M24 = 0;
matrix.M31 = 0f;
matrix.M32 = 0f;
matrix.M33 = 1f;
matrix.M34 = 0f;
matrix.M41 = (p.Position.X * this.viewportScale.X) + this.viewportTranslate.X;
matrix.M42 = (p.Position.Y * this.viewportScale.Y) + this.viewportTranslate.Y;
matrix.M43 = 0;
matrix.M44 = 1f;
}
return matrix;
}
