/* This was a dirty hack to do some fun things with WinForms */
//public MainForm main_form_reference;
public string LoadFromFile(string path, ContentManager content)
{
XmlDocument doc = new XmlDocument();
doc.Load(path);
ParticleSystem new_system = new ParticleSystem();
new_system.name = doc.SelectSingleNode("ParticleSystem").Attributes["Name"].Value;
ParticleEffect effect_to_add = null;
ParticleEmitter emitter_to_add = null;
Particle particle_to_add = null;
string effect_type = "None";
string texture_polling = "None";
string BlendState = "None";
/* Particle Attributes */
Color StartColor = Color.White;
Color EndColor = Color.White;
float StartAlpha = 0.0f;
float EndAlpha = 0.0f;
float Rotation = 0.0f;
float RotationSpeed = 0.0f;
float ScaleStart = 0.0f;
float ScaleEnd = 0.0f;
Vector2 Origin = Vector2.Zero;
string TextureName = "None";
float LifeMin = 0.0f;
float LifeMax = 0.0f;
string ParticleName = "None";
/* End Particle Attributes */
/*Emitter Attributes */
Vector2 MaxParticleSpeed = Vector2.Zero;
Vector2 MinParticleSpeed = Vector2.Zero;
Int32 MaxParticles = 0;
Vector2 MinVelocity = Vector2.Zero;
Vector2 MaxVelocity = Vector2.Zero;
Int32 ParticlesPerUpdate = 0;
Vector2 OffsetMin = Vector2.Zero;
Vector2 OffsetMax = Vector2.Zero;
Vector2 MinAccel = Vector2.Zero;
Vector2 MaxAccel = Vector2.Zero;
int r = 0;
int g = 0;
int b = 0;
List<String> texture_names = new List<String>();
List<Particle> particles_to_add = new List<Particle>();
/* System is set up, lets parse out effects */
foreach (XmlNode node in doc.SelectNodes("ParticleSystem/ParticleEffect"))
{
effect_type = node.Attributes["Type"].Value;
texture_polling = node.Attributes["TexturePolling"].Value;
BlendState = node.Attributes["BlendState"].Value;
/* Now lets grab all information so we can create an emitter */
XmlNode emitter_node = node.SelectSingleNode("ParticleEmitter");
//MaxParticleSpeed = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[0].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[0].Attributes["Y"].Value));
//MinParticleSpeed = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[1].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[1].Attributes["Y"].Value));
MaxParticles = Convert.ToInt32(emitter_node.ChildNodes[0].InnerText);
MinVelocity = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[1].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[1].Attributes["Y"].Value));
MaxVelocity = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[2].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[2].Attributes["Y"].Value));
ParticlesPerUpdate = Convert.ToInt32(emitter_node.ChildNodes[3].InnerText);
OffsetMin = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[4].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[4].Attributes["Y"].Value));
OffsetMax = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[5].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[5].Attributes["Y"].Value));
MinAccel = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[6].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[6].Attributes["Y"].Value));
MaxAccel = new Vector2((float)Convert.ToDouble(emitter_node.ChildNodes[7].Attributes["X"].Value), (float)Convert.ToDouble(emitter_node.ChildNodes[7].Attributes["Y"].Value));
/* This is enough info to create an Emitter */
/* Now let's loop through each particle and at the end, build the particle and add it master particle list */
foreach (XmlNode particle_node in node.SelectNodes("Particle"))
{
XmlNode StartColorNode = particle_node.ChildNodes[0];
r = Convert.ToInt32(StartColorNode.Attributes["R"].Value);
g = Convert.ToInt32(StartColorNode.Attributes["G"].Value);
b = Convert.ToInt32(StartColorNode.Attributes["B"].Value);
StartColor = new Color(r, g, b);
XmlNode EndColorNode = particle_node.ChildNodes[1];
r = Convert.ToInt32(EndColorNode.Attributes["R"].Value);
g = Convert.ToInt32(EndColorNode.Attributes["G"].Value);
b = Convert.ToInt32(EndColorNode.Attributes["B"].Value);
EndColor = new Color(r, g, b);
StartAlpha = (float)Convert.ToDouble(particle_node.ChildNodes[2].InnerText);
EndAlpha = (float)Convert.ToDouble(particle_node.ChildNodes[3].InnerText);
Rotation = (float)Convert.ToDouble(particle_node.ChildNodes[4].InnerText);
RotationSpeed = (float)Convert.ToDouble(particle_node.ChildNodes[5].InnerText);
ScaleStart = (float)Convert.ToDouble(particle_node.ChildNodes[6].InnerText);
ScaleEnd = (float)Convert.ToDouble(particle_node.ChildNodes[7].InnerText);
Origin = new Vector2((float)Convert.ToDouble(particle_node.ChildNodes[8].Attributes["X"].Value), (float)Convert.ToDouble(particle_node.ChildNodes[8].Attributes["Y"].Value));
TextureName = particle_node.ChildNodes[9].InnerText;
texture_names.Add(TextureName);
LifeMin = (float)Convert.ToDouble(particle_node.ChildNodes[10].Attributes["Min"].Value);
LifeMax = (float)Convert.ToDouble(particle_node.ChildNodes[10].Attributes["Max"].Value);
Particle temp = new Particle();
temp.StartColor = StartColor;
temp.EndColor = EndColor;
temp.StartAlpha = StartAlpha;
temp.EndAlpha = EndAlpha;
temp.Rotation = Rotation;
temp.RotationSpeed = RotationSpeed;
temp.ScaleStart = ScaleStart;
temp.ScaleEnd = ScaleEnd;
temp.Origin = Origin;
temp.TextureName = TextureName;
temp.MinLife = LifeMin;
temp.MaxLife = LifeMax;
temp.Name = particle_node.Attributes["Name"].Value;
particles_to_add.Add(temp);
}
/* We have a complete list of texture names, lets load the textures and store in list */
List<Texture2D> textures = new List<Texture2D>();
/* WIN FORMS ONLY (had to use bastard-version of content load */
//foreach (String name in texture_names)
//{
// textures.Add(main_form_reference.LoadTexture(name));
//}
foreach (String name in texture_names)
{
/* Our texture names in the WinForms version require the extension
* In XNA, the assets are prebuilt and so the extension is unneeded
* So we'll just split the string into two, and take the first part*/
textures.Add(content.Load<Texture2D>(name.Split('.')[0]));
}
/* We also have enough info to build our emitter */
emitter_to_add = new ParticleEmitter();
emitter_to_add.MaxParticles = MaxParticles;
emitter_to_add.MinVelocity = MinVelocity;
emitter_to_add.MaxVelocity = MaxVelocity;
emitter_to_add.ParticlesPerUpdate = ParticlesPerUpdate;
emitter_to_add.OffsetMin = OffsetMin;
emitter_to_add.OffsetMax = OffsetMax;
emitter_to_add.MinimumAcceleration = MinAccel;
emitter_to_add.MaximumAcceleration = MaxAccel;
/* We have an emitter and every particle information stored */
/* Lets create our final effect to be added to our system */
if (effect_type == "Continuous")
{
effect_to_add = new ContinuousParticleEffect(textures, emitter_to_add);
effect_to_add.MasterParticles = particles_to_add;
effect_to_add.BlendingState = BlendState;
effect_to_add.TexturePolling = texture_polling;
effect_to_add.Emitter = emitter_to_add;
new_system.effects.Add(effect_to_add);
}
systems.Add(new_system.name, new_system);
return new_system.name;
}
return "Fail";
}
public Particle GenerateNewParticle(float offset_x, float offset_y, int p_count, int total_p)
{
/* total_p: The total # of particles we will generate this update
* p_count: the number particle we're currently on
* This is used to determine how far (percent-wise) we are through our update
* so we can interpolate their position */
float percent = (float)p_count / (float)total_p;
int ParticleID = -1;
/* if we're doing random texture polling */
if (TexturePolling == "Random")
ParticleID = random.Next(textures.Count);
else if (TexturePolling == "RoundRobin")
ParticleID = CurrentTextureIndex++ % textures.Count;
Particle BaseParticle = MasterParticles[ParticleID];
/* the starting position, linearlly interpolated between the LastLocation and the currentlocation */
Vector2 base_position = Vector2.Lerp(Emitter.LastLocation, Emitter.Location, percent);
/* offset_x and offset_y are the last offset values (typically 0, but if we're drawing in a circle, we might calculate those beforehand and pass them in */
Vector2 position = new Vector2(base_position.X + offset_x, base_position.Y + offset_y);
/* Creates a vector that creates a random offset using the emitter properties */
Vector2 emitter_offset = new Vector2(RandomFromRange(Emitter.OffsetMin.X, Emitter.OffsetMax.X, random), RandomFromRange(Emitter.OffsetMin.Y, Emitter.OffsetMax.Y, random));
position += emitter_offset;
/* We will build the rest of this particle off of our base particle */
Particle ParticleToReturn = new Particle();
ParticleToReturn.Texture = textures[ParticleID];
ParticleToReturn.Location = position;
/* Creates the random velocity vector from the emitter's properties */
Vector2 velocity = new Vector2(RandomFromRange(Emitter.MinVelocity.X, Emitter.MaxVelocity.X, random),
RandomFromRange(Emitter.MinVelocity.Y, Emitter.MaxVelocity.Y, random));
/* Same thing for acceleration */
Vector2 acceleration = Vector2.Zero;
acceleration = new Vector2(RandomFromRange(Emitter.MinimumAcceleration.X, Emitter.MaximumAcceleration.X, random),
RandomFromRange(Emitter.MinimumAcceleration.Y, Emitter.MaximumAcceleration.Y, random));
float angle = BaseParticle.Rotation;
float angularVelocity = BaseParticle.RotationSpeed;
string Name = BaseParticle.Name;
Color startColor = BaseParticle.StartColor;
Color endColor = BaseParticle.EndColor;
float alpha = BaseParticle.StartAlpha;
float life = MathHelper.Lerp(BaseParticle.MinLife, BaseParticle.MaxLife, (float)random.NextDouble());
float scale = BaseParticle.Scale;
ParticleToReturn.Acceleration = acceleration;
ParticleToReturn.StartAlpha = alpha;
ParticleToReturn.EndAlpha = BaseParticle.EndAlpha;
ParticleToReturn.StartColor = startColor;
ParticleToReturn.EndColor = endColor;
ParticleToReturn.Name = Name;
ParticleToReturn.Origin = Vector2.Zero;
ParticleToReturn.Rotation = angle;
ParticleToReturn.RotationSpeed = angularVelocity;
ParticleToReturn.Scale = scale;
ParticleToReturn.Life = life;
ParticleToReturn.StartingLife = life;
ParticleToReturn.Velocity = velocity;
ParticleToReturn.ScaleStart = BaseParticle.ScaleStart;
ParticleToReturn.ScaleEnd = BaseParticle.ScaleEnd;
return ParticleToReturn;
}
public Particle GenerateNewParticle(float offset_x, float offset_y, int p_count, int total_p)
{
float percent = (float)p_count / (float)total_p;
Texture2D texture = null;
int ParticleID = -1;
/* if we're doing random texture polling */
if (TexturePolling == "Random")
ParticleID = random.Next(textures.Count);
else if (TexturePolling == "RoundRobin")
ParticleID = CurrentTextureIndex++ % textures.Count;
Particle BaseParticle = MasterParticles[ParticleID];
Vector2 base_position = Vector2.Lerp(Emitter.LastLocation, Emitter.Location, percent);
Vector2 position = new Vector2(base_position.X + offset_x, base_position.Y + offset_y);
//Vector2 emitter_offset = Vector2.Lerp(Emitter.OffsetMin, Emitter.OffsetMax, (float)random.NextDouble());
Vector2 emitter_offset = new Vector2(RandomFromRange(Emitter.OffsetMin.X, Emitter.OffsetMax.X, random), RandomFromRange(Emitter.OffsetMin.Y, Emitter.OffsetMax.Y, random));
position += emitter_offset;
/* We will build the rest of this particle off of our base particle */
Particle ParticleToReturn = new Particle();
ParticleToReturn.Texture = textures[ParticleID];
ParticleToReturn.Location = position;
Vector2 velocity = new Vector2(RandomFromRange(Emitter.MinVelocity.X, Emitter.MaxVelocity.X, random), RandomFromRange(Emitter.MinVelocity.Y, Emitter.MaxVelocity.Y, random));
/* Same thing for acceleration */
Vector2 acceleration = Vector2.Zero;
//acceleration = Vector2.Lerp(Emitter.MinimumAcceleration, Emitter.MaximumAcceleration, (float)random.NextDouble());
acceleration = new Vector2(RandomFromRange(Emitter.MinimumAcceleration.X, Emitter.MaximumAcceleration.X, random), RandomFromRange(Emitter.MinimumAcceleration.Y, Emitter.MaximumAcceleration.Y, random));
float angle = BaseParticle.Rotation;
float angularVelocity = BaseParticle.RotationSpeed;
string Name = BaseParticle.Name;
Color startColor = BaseParticle.StartColor;
Color endColor = BaseParticle.EndColor;
float alpha = BaseParticle.StartAlpha;
float life = MathHelper.Lerp(BaseParticle.MinLife, BaseParticle.MaxLife, (float)random.NextDouble());
float scale = BaseParticle.Scale;
ParticleToReturn.Acceleration = acceleration;
ParticleToReturn.StartAlpha = alpha;
ParticleToReturn.StartColor = startColor;
ParticleToReturn.EndColor = endColor;
ParticleToReturn.Name = Name;
ParticleToReturn.Origin = Vector2.Zero;
ParticleToReturn.Rotation = angle;
ParticleToReturn.RotationSpeed = angularVelocity;
ParticleToReturn.Scale = scale;
ParticleToReturn.Life = life;
ParticleToReturn.StartingLife = life;
ParticleToReturn.Velocity = velocity;
ParticleToReturn.ScaleStart = BaseParticle.ScaleStart;
ParticleToReturn.ScaleEnd = BaseParticle.ScaleEnd;
return ParticleToReturn;
}
public Particle GenerateNewParticle(float offset_x, float offset_y)
{
Texture2D texture = null;
int ParticleID = -1;
/* if we're doing random texture polling */
if (TexturePolling == "Random")
ParticleID = random.Next(textures.Count);
else if (TexturePolling == "RoundRobin")
ParticleID = CurrentTextureIndex++ % textures.Count;
Particle BaseParticle = MasterParticles[ParticleID];
Vector2 position = new Vector2(Emitter.Location.X + offset_x, Emitter.Location.Y + offset_y);
Vector2 emitter_offset = Vector2.Lerp(Emitter.OffsetMin, Emitter.OffsetMax, (float)random.NextDouble());
position += emitter_offset;
/* We will build the rest of this particle off of our base particle */
Particle ParticleToReturn = new Particle();
ParticleToReturn.Texture = textures[ParticleID];
ParticleToReturn.Location = position;
float spd_x = RandomFromRange(Emitter.MinParticleSpeed.X, Emitter.MaxParticleSpeed.X, random);
float spd_y = RandomFromRange(Emitter.MinParticleSpeed.Y, Emitter.MaxParticleSpeed.Y, random);
Vector2 velocity = Vector2.Transform(Emitter.Direction, Matrix.CreateRotationZ(MathHelper.Lerp(Emitter.MinAngleRot, Emitter.MaxAngleRot, (float)random.NextDouble())));
velocity *= new Vector2(spd_x, spd_y);
/* Now we need to transform the velocity by a random angle specified in the emitter */
/* Same thing for acceleration */
Vector2 acceleration = Vector2.Zero;
acceleration = Vector2.Lerp(Emitter.MinimumAcceleration, Emitter.MaximumAcceleration, (float)random.NextDouble());
float angle = BaseParticle.Rotation;
float angularVelocity = BaseParticle.RotationSpeed;
string Name = BaseParticle.Name;
Color startColor = BaseParticle.StartColor;
Color endColor = BaseParticle.EndColor;
float alpha = BaseParticle.StartAlpha;
float life = MathHelper.Lerp(BaseParticle.MinLife, BaseParticle.MaxLife, (float)random.NextDouble());
float scale = BaseParticle.Scale;
ParticleToReturn.Acceleration = acceleration;
ParticleToReturn.StartAlpha = alpha;
ParticleToReturn.StartColor = startColor;
ParticleToReturn.EndColor = endColor;
ParticleToReturn.Name = Name;
ParticleToReturn.Origin = Vector2.Zero;
ParticleToReturn.Rotation = angle;
ParticleToReturn.RotationSpeed = angularVelocity;
ParticleToReturn.Scale = scale;
ParticleToReturn.Life = life;
ParticleToReturn.StartingLife = life;
ParticleToReturn.Velocity = velocity;
ParticleToReturn.ScaleStart = BaseParticle.ScaleStart;
ParticleToReturn.ScaleEnd = BaseParticle.ScaleEnd;
return ParticleToReturn;
}
