/// <summary>
/// Constructor
/// </summary>
/// <param name="game">Game</param>
/// <param name="name">Name</param>
/// <param name="description">Particle system description</param>
/// <param name="emitter">Particle emitter</param>
public ParticleSystemCpu(Game game, string name, ParticleSystemDescription description, ParticleEmitter emitter)
{
this.Game = game;
this.Name = name;
this.parameters = new ParticleSystemParams(description) * emitter.Scale;
var imgContent = new ImageContent()
{
Streams = ContentManager.FindContent(description.ContentPath, description.TextureName),
};
this.Texture = game.ResourceManager.CreateResource(imgContent);
this.TextureCount = (uint)imgContent.Count;
this.Emitter = emitter;
this.Emitter.UpdateBounds(this.parameters);
this.MaxConcurrentParticles = this.Emitter.GetMaximumConcurrentParticles(description.MaxDuration);
this.particles = new VertexCpuParticle[this.MaxConcurrentParticles];
this.buffer = new EngineBuffer <VertexCpuParticle>(game.Graphics, description.Name, this.particles, true);
buffer.AddInputLayout(game.Graphics.CreateInputLayout(DrawerPool.EffectDefaultCPUParticles.RotationDraw.GetSignature(), VertexCpuParticle.Input(BufferSlot)));
buffer.AddInputLayout(game.Graphics.CreateInputLayout(DrawerPool.EffectDefaultCPUParticles.NonRotationDraw.GetSignature(), VertexCpuParticle.Input(BufferSlot)));
this.TimeToEnd = this.Emitter.Duration + this.parameters.MaxDuration;
}
/// <summary>
/// Contructor
/// </summary>
/// <param name="game">Game</param>
/// <param name="name">Name</param>
/// <param name="description">Particle system description</param>
/// <param name="emitter">Emitter</param>
public ParticleSystemGpu(Game game, string name, ParticleSystemDescription description, ParticleEmitter emitter)
{
this.Game = game;
this.Name = name;
this.parameters = new ParticleSystemParams(description) * emitter.Scale;
var imgContent = new ImageContent()
{
Streams = ContentManager.FindContent(description.ContentPath, description.TextureName),
};
this.Texture = game.ResourceManager.CreateResource(imgContent);
this.TextureCount = (uint)imgContent.Count;
this.Emitter = emitter;
this.Emitter.UpdateBounds(this.parameters);
this.MaxConcurrentParticles = this.Emitter.GetMaximumConcurrentParticles(description.MaxDuration);
this.TimeToEnd = this.Emitter.Duration + this.parameters.MaxDuration;
var data = Helper.CreateArray(1, new VertexGpuParticle()
{
Position = this.Emitter.Position,
Velocity = this.Emitter.Velocity,
RandomValues = new Vector4(),
MaxAge = 0,
Type = 0,
EmissionTime = this.Emitter.Duration,
});
int size = this.GetBufferSize();
this.emittersBuffer = game.Graphics.CreateBuffer <VertexGpuParticle>(description.Name, data, ResourceUsage.Default, BindFlags.VertexBuffer, CpuAccessFlags.None);
this.drawingBuffer = game.Graphics.CreateBuffer <VertexGpuParticle>(description.Name, size, ResourceUsage.Default, BindFlags.VertexBuffer | BindFlags.StreamOutput, CpuAccessFlags.None);
this.streamOutBuffer = game.Graphics.CreateBuffer <VertexGpuParticle>(description.Name, size, ResourceUsage.Default, BindFlags.VertexBuffer | BindFlags.StreamOutput, CpuAccessFlags.None);
this.inputStride = default(VertexGpuParticle).GetStride();
this.emitterBinding = new[] { new VertexBufferBinding(this.emittersBuffer, this.inputStride, 0) };
this.drawingBinding = new[] { new VertexBufferBinding(this.drawingBuffer, this.inputStride, 0) };
this.streamOutBinding = new[] { new StreamOutputBufferBinding(this.streamOutBuffer, 0) };
var effect = DrawerPool.EffectDefaultGPUParticles;
this.streamOutInputLayout = game.Graphics.CreateInputLayout(effect.ParticleStreamOut.GetSignature(), VertexGpuParticle.Input(BufferSlot));
this.rotatingInputLayout = game.Graphics.CreateInputLayout(effect.RotationDraw.GetSignature(), VertexGpuParticle.Input(BufferSlot));
this.nonRotatingInputLayout = game.Graphics.CreateInputLayout(effect.NonRotationDraw.GetSignature(), VertexGpuParticle.Input(BufferSlot));
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="description">Particle system description</param>
public ParticleSystemParams(ParticleSystemDescription description) : this()
{
this.minHorizontalVelocity = 0f;
this.maxHorizontalVelocity = 0f;
this.minVerticalVelocity = 0f;
this.maxVerticalVelocity = 0f;
this.minRotateSpeed = 0f;
this.maxRotateSpeed = 0f;
this.minStartSize = 0f;
this.maxStartSize = 0f;
this.minEndSize = 0f;
this.maxEndSize = 0f;
this.HorizontalVelocity = Vector2.Zero;
this.VerticalVelocity = Vector2.Zero;
this.RotateSpeed = Vector2.Zero;
this.StartSize = Vector2.Zero;
this.EndSize = Vector2.Zero;
this.MaxDuration = description.MaxDuration;
this.MaxDurationRandomness = description.MaxDurationRandomness;
this.Gravity = description.Gravity;
this.EndVelocity = description.EndVelocity;
this.MinColor = description.MinColor;
this.MaxColor = description.MaxColor;
this.Transparent = description.Transparent;
this.Additive = description.Additive;
this.EmitterVelocitySensitivity = description.EmitterVelocitySensitivity;
this.MinHorizontalVelocity = description.MinHorizontalVelocity;
this.MaxHorizontalVelocity = description.MaxHorizontalVelocity;
this.MinVerticalVelocity = description.MinVerticalVelocity;
this.MaxVerticalVelocity = description.MaxVerticalVelocity;
this.MinRotateSpeed = description.MinRotateSpeed;
this.MaxRotateSpeed = description.MaxRotateSpeed;
this.MinStartSize = description.MinStartSize;
this.MaxStartSize = description.MaxStartSize;
this.MinEndSize = description.MinEndSize;
this.MaxEndSize = description.MaxEndSize;
}
/// <summary>
/// Initializes smoke plume particle systems
/// </summary>
/// <param name="contentPath">Content path</param>
/// <param name="texture">Texture</param>
/// <param name="scale">System scale</param>
/// <returns>Returns the new generated particle system description</returns>
public static ParticleSystemDescription InitializeSmokePlume(string contentPath, string texture, float scale = 1f)
{
ParticleSystemDescription settings = new ParticleSystemDescription
{
Name = "SmokePlume",
ContentPath = contentPath,
TextureName = texture,
MaxDuration = 10,
MinHorizontalVelocity = -1.0f,
MaxHorizontalVelocity = +1.0f,
MinVerticalVelocity = -1.0f,
MaxVerticalVelocity = +1.0f,
Gravity = Vector3.Zero,
EndVelocity = 0.75f,
MinRotateSpeed = 0.5f,
MaxRotateSpeed = 1.0f,
MinStartSize = 1f,
MaxStartSize = 2f,
MinEndSize = 5f,
MaxEndSize = 20f,
MaxDurationRandomness = 1f,
EmitterVelocitySensitivity = 1f,
Transparent = true,
Additive = false
};
settings.Scale(scale);
return(settings);
}
/// <summary>
/// Initializes dust particle systems
/// </summary>
/// <param name="contentPath">Content path</param>
/// <param name="texture">Texture</param>
/// <param name="scale">System scale</param>
/// <returns>Returns the new generated particle system description</returns>
public static ParticleSystemDescription InitializeDust(string contentPath, string texture, float scale = 1f)
{
ParticleSystemDescription settings = new ParticleSystemDescription
{
Name = "Dust",
ContentPath = contentPath,
TextureName = texture,
MaxDuration = 1,
MinHorizontalVelocity = 0,
MaxHorizontalVelocity = 0.5f,
MinVerticalVelocity = -1,
MaxVerticalVelocity = 1,
Gravity = new Vector3(0.0f, -0.35f, 0.0f),
EndVelocity = 0.1f,
MinColor = Color.SandyBrown * 0.5f,
MaxColor = Color.SandyBrown,
MinRotateSpeed = -1,
MaxRotateSpeed = 1,
MinStartSize = 0.25f,
MaxStartSize = 0.5f,
MinEndSize = 0.5f,
MaxEndSize = 1f,
Transparent = true,
Additive = false
};
settings.Scale(scale);
return(settings);
}
/// <summary>
/// Initializes explosion with smoke particle systems
/// </summary>
/// <param name="contentPath">Content path</param>
/// <param name="texture">Texture</param>
/// <param name="scale">System scale</param>
/// <returns>Returns the new generated particle system description</returns>
public static ParticleSystemDescription InitializeSmokeExplosion(string contentPath, string texture, float scale = 1f)
{
ParticleSystemDescription settings = new ParticleSystemDescription
{
Name = "SmokeExplosion",
ContentPath = contentPath,
TextureName = texture,
MaxDuration = 4,
MinHorizontalVelocity = 0,
MaxHorizontalVelocity = 5,
MinVerticalVelocity = -1,
MaxVerticalVelocity = 5,
Gravity = new Vector3(0, -20, 0),
EndVelocity = 0,
MinColor = Color.LightGray,
MaxColor = Color.White,
MinRotateSpeed = -2,
MaxRotateSpeed = 2,
MinStartSize = 1,
MaxStartSize = 1,
MinEndSize = 10,
MaxEndSize = 20,
Transparent = true,
Additive = false
};
settings.Scale(scale);
return(settings);
}
/// <summary>
/// Updates the current particle parameters with the specified particle description
/// </summary>
/// <param name="other">The other particle description</param>
public void Update(ParticleSystemDescription other)
{
this.MaxDuration = other.MaxDuration;
this.MaxDurationRandomness = other.MaxDurationRandomness;
this.MaxHorizontalVelocity = other.MaxHorizontalVelocity;
this.MinHorizontalVelocity = other.MinHorizontalVelocity;
this.MaxVerticalVelocity = other.MaxVerticalVelocity;
this.MinVerticalVelocity = other.MinVerticalVelocity;
this.Gravity = other.Gravity;
this.EndVelocity = other.EndVelocity;
this.MinColor = other.MinColor;
this.MaxColor = other.MaxColor;
this.MinRotateSpeed = other.MinRotateSpeed;
this.MaxRotateSpeed = other.MaxRotateSpeed;
this.MinStartSize = other.MinStartSize;
this.MaxStartSize = other.MaxStartSize;
this.MinEndSize = other.MinEndSize;
this.MaxEndSize = other.MaxEndSize;
this.Transparent = other.Transparent;
this.EmitterVelocitySensitivity = other.EmitterVelocitySensitivity;
}
/// <summary>
/// Initializes explosion particle systems
/// </summary>
/// <param name="contentPath">Content path</param>
/// <param name="texture">Texture</param>
/// <param name="scale">System scale</param>
/// <returns>Returns the new generated particle system description</returns>
public static ParticleSystemDescription InitializeExplosion(string contentPath, string texture, float scale = 1f)
{
ParticleSystemDescription settings = new ParticleSystemDescription
{
Name = "Explosion",
ContentPath = contentPath,
TextureName = texture,
MaxDuration = 1.5f,
MaxDurationRandomness = 1,
MinHorizontalVelocity = 1.0f,
MaxHorizontalVelocity = 1.5f,
MinVerticalVelocity = -1f,
MaxVerticalVelocity = 1f,
EndVelocity = 0,
MinColor = Color.DarkGray,
MaxColor = Color.Gray,
MinRotateSpeed = -1,
MaxRotateSpeed = 1,
MinStartSize = 0.25f,
MaxStartSize = 0.25f,
MinEndSize = 5,
MaxEndSize = 10,
Transparent = true,
Additive = true
};
settings.Scale(scale);
return(settings);
}
/// <summary>
/// Initializes porjectile trail particle systems
/// </summary>
/// <param name="contentPath">Content path</param>
/// <param name="texture">Texture</param>
/// <param name="scale">System scale</param>
/// <returns>Returns the new generated particle system description</returns>
public static ParticleSystemDescription InitializeProjectileTrail(string contentPath, string texture, float scale = 1f)
{
ParticleSystemDescription settings = new ParticleSystemDescription
{
Name = "ProjectileTrail",
ContentPath = contentPath,
TextureName = texture,
MaxDuration = 0.5f,
MaxDurationRandomness = 1.5f,
EmitterVelocitySensitivity = 0.1f,
MinHorizontalVelocity = -0.1f,
MaxHorizontalVelocity = 0.1f,
MinVerticalVelocity = -0.1f,
MaxVerticalVelocity = 0.1f,
MinColor = Color.Gray,
MaxColor = Color.White,
MinRotateSpeed = 1,
MaxRotateSpeed = 1,
MinStartSize = 0.25f,
MaxStartSize = 0.5f,
MinEndSize = 0.5f,
MaxEndSize = 1.0f,
Transparent = true,
Additive = false
};
settings.Scale(scale);
return(settings);
}
/// <summary>
/// Initializes fire particle systems
/// </summary>
/// <param name="contentPath">Content path</param>
/// <param name="texture">Texture</param>
/// <param name="scale">System scale</param>
/// <returns>Returns the new generated particle system description</returns>
public static ParticleSystemDescription InitializeFire(string contentPath, string texture, float scale = 1f)
{
ParticleSystemDescription settings = new ParticleSystemDescription
{
Name = "Fire",
ContentPath = contentPath,
TextureName = texture,
MaxDuration = 2,
MaxDurationRandomness = 1,
MinHorizontalVelocity = -1f,
MaxHorizontalVelocity = +1f,
MinVerticalVelocity = -1f,
MaxVerticalVelocity = 1f,
Gravity = new Vector3(0, 0, 0),
MinColor = new Color(1f, 1f, 1f, 0.85f),
MaxColor = new Color(1f, 1f, 1f, 1f),
MinStartSize = 0.1f,
MaxStartSize = 0.5f,
MinEndSize = 2.5f,
MaxEndSize = 5f,
EmitterVelocitySensitivity = 1f,
Transparent = true,
Additive = true
};
settings.Scale(scale);
return(settings);
}
/// <summary>
/// Adds a new particle system to the collection
/// </summary>
/// <param name="name">Particle system name</param>
/// <param name="type">Particle system type</param>
/// <param name="description">Particle system description</param>
/// <param name="emitter">Particle emitter</param>
/// <returns>Returns the new particle system</returns>
public IParticleSystem AddParticleSystem(string name, ParticleSystemTypes type, ParticleSystemDescription description, ParticleEmitter emitter)
{
IParticleSystem pSystem = null;
if (type == ParticleSystemTypes.CPU)
{
pSystem = new ParticleSystemCpu(this.Game, name, description, emitter);
}
else if (type == ParticleSystemTypes.GPU)
{
pSystem = new ParticleSystemGpu(this.Game, name, description, emitter);
}
else
{
throw new EngineException("Bad particle system type");
}
this.AllocatedParticleCount += pSystem.MaxConcurrentParticles;
this.ParticleSystems.Add(pSystem);
return(pSystem);
}
/// <summary>
/// Adds a new particle system to the collection
/// </summary>
/// <param name="type">Particle system type</param>
/// <param name="description">Particle system description</param>
/// <param name="emitter">Particle emitter</param>
/// <returns>Returns the new particle system</returns>
public IParticleSystem AddParticleSystem(ParticleSystemTypes type, ParticleSystemDescription description, ParticleEmitter emitter)
{
return(this.AddParticleSystem(null, type, description, emitter));
}
/// <summary>
/// Creates a new particle description from another one
/// </summary>
/// <param name="particleDesc">The other particle description</param>
/// <param name="scale">Scale</param>
/// <returns>Returns the new generated particle system description</returns>
internal static ParticleSystemDescription Initialize(ParticleSystemDescription particleDesc, float scale = 1f)
{
return(Initialize(particleDesc.ParticleType, particleDesc.ContentPath, particleDesc.TextureName, scale));
}
