public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var sizeX = particles.GetFloatValues("SizeX");
var sizeY = particles.GetFloatValues("SizeY");
var sizeXChangeVector = new Vector <float>(Emitter.SizeChange);
var sizeYChangeVector = new Vector <float>(Emitter.SizeChange);
var offset = Vector <float> .Count;
int x;
var nearestMultiple = NearestMultiple(Program.ParticleCount, offset);
for (x = 0; x < nearestMultiple; x += offset)
{
var sizeXSlice = sizeX.Slice(x, offset);
var sizeYSlice = sizeY.Slice(x, offset);
var sizeXVector = new Vector <float>(sizeXSlice);
var sizeYVector = new Vector <float>(sizeYSlice);
var deltaXVector = sizeXChangeVector * timeSinceLastFrame;
var deltaYVector = sizeYChangeVector * timeSinceLastFrame;
(sizeXVector + deltaXVector).CopyTo(sizeXSlice);
(sizeYVector + deltaYVector).CopyTo(sizeYSlice);
}
// Remaining items
for (; x < Program.ParticleCount; ++x)
{
sizeX[x] += timeSinceLastFrame * Emitter.SizeChange;
sizeY[x] += timeSinceLastFrame * Emitter.SizeChange;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
particles.Velocity[x] -= Emitter.Drag * particles.Velocity[x] * timeSinceLastFrame;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocityX = particles.GetFloatValues("VelocityX");
var velocityY = particles.GetFloatValues("VelocityY");
var changeVector = new Vector <float>(Emitter.SizeChange);
int x;
var offset = Vector <float> .Count;
var nearestMultiple = NearestMultiple(Program.ParticleCount, offset);
for (x = 0; x < nearestMultiple; x += offset)
{
var xSlice = velocityX.Slice(x, offset);
var ySlice = velocityY.Slice(x, offset);
var xVector = new Vector <float>(xSlice);
var yVector = new Vector <float>(ySlice);
var xDeltaVector = changeVector * timeSinceLastFrame;
var yDeltaVector = changeVector * timeSinceLastFrame;
(xVector + xDeltaVector).CopyTo(xSlice);
(yVector + yDeltaVector).CopyTo(ySlice);
}
for (; x < Program.ParticleCount; ++x)
{
velocityX[x] += timeSinceLastFrame * Emitter.SizeChange;
velocityY[x] += timeSinceLastFrame * Emitter.SizeChange;
}
}
public bool RemoveRandomParticle(ParticleCollection sector)
{
// If no sector is provided to remove from, semirandomly pick a sector from the last update.
if (sector == null)
{
if (_SectorsFromLastUpdate.Count == 0)
{
return(false);
}
var index = RNG.Next(0, _SectorsFromLastUpdate.Count);
sector = _SectorsFromLastUpdate.GetBuffer()[index];
}
if (sector.Count == 0)
{
return(false);
}
var particleIndex = RNG.Next(0, sector.Count);
sector.RemoveAt(particleIndex);
return(true);
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
particles.Size[x] += timeSinceLastFrame * new Vector2(Emitter.SizeChange, Emitter.SizeChange);
}
}
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
/* They do this check in C# SDL Manipulators. Why rock the
* boat?
*/
throw new ArgumentNullException("particles");
foreach (BaseParticle p in particles)
{
if (p.Static)
// Static particles are immobile anyway. Nothing to do.
continue;
float speedDiff = this.limit - p.Velocity.Length;
if (speedDiff < 0)
{
/* this particle is traveling too fast. Reduce the
* particle's velocity to the speed limit.
*/
Vector particleVelocity = p.Velocity;
particleVelocity.Length = this.limit;
p.Velocity = particleVelocity;
}
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var offset = Vector <float> .Count;
var deltaVector = new Vector <float>(timeSinceLastFrame);
var rotationInRadians = particles.GetFloatValues("RotationInRadians");
var rotationalVelocityInRadians = particles.GetFloatValues("RotationalVelocityInRadians");
var nearestMultiple = NearestMultiple(Program.ParticleCount, offset);
int x;
for (x = 0; x < nearestMultiple; x += offset)
{
var rotationsSlice = rotationInRadians.Slice(x, offset);
var rotationVector = new Vector <float>(rotationsSlice);
var velocityVector = new Vector <float>(rotationalVelocityInRadians.Slice(x, offset));
var velocitySinceLastFrame = velocityVector * deltaVector;
(rotationVector + velocitySinceLastFrame).CopyTo(rotationsSlice);
}
// Remaining values
for (; x < Program.ParticleCount; ++x)
{
rotationInRadians[x] += rotationalVelocityInRadians[x] * timeSinceLastFrame;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
particles.RotationInRadians[x] += particles.RotationalVelocityInRadians[x] * timeSinceLastFrame;
}
}
/// <summary>
/// Manipulate a collection of particles with the manipulators contained in the collection.
/// </summary>
/// <param name="particles">The particles to manipulate.</param>
public void Manipulate(ParticleCollection particles)
{
foreach (IParticleManipulator manipulator in this)
{
manipulator.Manipulate(particles);
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocityX = particles.GetFloatValues("VelocityX");
var velocityY = particles.GetFloatValues("VelocityY");
int x;
var offset = Vector <float> .Count;
var nearestMultiple = NearestMultiple(Program.ParticleCount, offset);
for (x = 0; x < nearestMultiple; x += offset)
{
var xSlice = velocityX.Slice(x, offset);
var ySlice = velocityY.Slice(x, offset);
var xVector = new Vector <float>(xSlice);
var yVector = new Vector <float>(ySlice);
var xDeltaVector = (xVector * Emitter.Drag) * timeSinceLastFrame;
var yDeltaVector = (yVector * Emitter.Drag) * timeSinceLastFrame;
(xVector - xDeltaVector).CopyTo(xSlice);
(yVector - yDeltaVector).CopyTo(ySlice);
}
// Remaining
for (; x < Program.ParticleCount; x++)
{
velocityX[x] -= Emitter.Drag * velocityX[x] * timeSinceLastFrame;
velocityY[x] -= Emitter.Drag * velocityY[x] * timeSinceLastFrame;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
particles.TextureSectionIndex[x] = (byte)((particles.TimeAlive[x] / Emitter.MaxParticleLifeTime) * 10);
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
particles.ReferencePosition[x] += particles.Velocity[x] * timeSinceLastFrame;
particles.Position[x].X = particles.ReferencePosition[x].X;
particles.Position[x].Y = particles.ReferencePosition[x].Y + particles.Altitude[x];
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var size = particles.GetVector2Values("Size");
for (var x = 0; x < Program.ParticleCount; x++)
{
size[x] += timeSinceLastFrame * new Vector2(Emitter.SizeChange, Emitter.SizeChange);
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocity = particles.GetVector2Values("Velocity");
for (var x = 0; x < Program.ParticleCount; x++)
{
velocity[x] -= Emitter.Drag * velocity[x] * timeSinceLastFrame;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var textureSectionIndex = particles.GetByteValues("TextureSectionIndex");
var timeAlive = particles.GetFloatValues("TimeAlive");
for (var x = 0; x < Program.ParticleCount; x++)
{
textureSectionIndex[x] = (byte)((timeAlive[x] / Emitter.MaxParticleLifeTime) * 10);
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var rotationInRadians = particles.GetFloatValues("RotationInRadians");
var rotationalVelocityInRadians = particles.GetFloatValues("RotationalVelocityInRadians");
for (var x = 0; x < Program.ParticleCount; x++)
{
rotationInRadians[x] += rotationalVelocityInRadians[x] * timeSinceLastFrame;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
if (particles.Velocity[x] != Vector2.Zero)
{
particles.RotationInRadians[x] = (float)Math.Atan2(particles.Velocity[x].Y, particles.Velocity[x].X);
}
}
}
protected void DrawSector(ParticleCollection sector)
{
if (sector.Count == 0)
{
return;
}
RenderArgs.SetSector(sector);
Renderer(RenderArgs);
RenderArgs.Enumerator.Dispose();
}
/// <summary>
/// Manipulate particles by the gravity.
/// </summary>
/// <param name="particles">The particles to pull by the gravity.</param>
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
{
throw new ArgumentNullException("particles");
}
foreach (BaseParticle p in particles)
{
p.Velocity += m_Velocity;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
var width = (((particles.InitialSize[x].X - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
var height = (((particles.InitialSize[x].Y - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
particles.Size[x].X -= width;
particles.Size[x].Y -= height;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocityX = particles.GetFloatValues("VelocityX");
var velocityY = particles.GetFloatValues("VelocityY");
var rotationInRadians = particles.GetFloatValues("RotationInRadians");
for (var x = 0; x < Program.ParticleCount; x++)
{
rotationInRadians[x] = (float)Math.Atan2(velocityY[x], velocityX[x]);
}
}
protected void UpdateSector(ParticleCollection sector)
{
if (sector.Count == 0)
{
return;
}
_SectorsFromLastUpdate.Add(sector);
UpdateArgs.SetSector(sector);
Updater(UpdateArgs);
UpdateArgs.Enumerator.Dispose();
}
/// <summary>
/// Applies the friction to the given set of particles.
/// </summary>
/// <param name="particles">The particles to apply the friction to.</param>
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
{
throw new ArgumentNullException("particles");
}
foreach (BaseParticle p in particles)
{
Vector vel = p.Velocity;
vel.Length -= m_Friction;
p.Velocity = vel;
//p.Velocity.Length -= m_Friction;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocity = particles.GetVector2Values("Velocity");
var position = particles.GetVector2Values("Position");
var referencePosition = particles.GetVector2Values("ReferencePosition");
var altitude = particles.GetFloatValues("Altitude");
for (var x = 0; x < Program.ParticleCount; x++)
{
referencePosition[x] += velocity[x] * timeSinceLastFrame;
position[x].X = referencePosition[x].X;
position[x].Y = referencePosition[x].Y + altitude[x];
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocity = particles.GetVector2Values("Velocity");
var rotationInRadians = particles.GetFloatValues("RotationInRadians");
for (var x = 0; x < Program.ParticleCount; x++)
{
if (velocity[x] != Vector2.Zero)
{
rotationInRadians[x] =
(float)Math.Atan2(velocity[x].Y, velocity[x].X);
}
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
for (var x = 0; x < Program.ParticleCount; x++)
{
particles.CurrentRed[x] -= (((particles.InitialRed[x] - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
particles.CurrentGreen[x] -= (((particles.InitialGreen[x] - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
particles.CurrentBlue[x] -= (((particles.InitialBlue[x] - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
particles.CurrentAlpha[x] -= (((particles.InitialAlpha[x] - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
}
}
/// <summary>
/// Applies the friction to the given set of particles.
/// </summary>
/// <param name="particles">The particles to apply the friction to.</param>
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
{
throw new ArgumentNullException("particles");
}
foreach (BaseParticle p in particles)
{
Vector vel = p.Velocity;
vel.Length -= m_Friction;
p.Velocity = vel;
//p.Velocity.Length -= m_Friction;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var initialSize = particles.GetVector2Values("InitialSize");
var size = particles.GetVector2Values("Size");
for (var x = 0; x < Program.ParticleCount; x++)
{
var width = (((initialSize[x].X - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
var height = (((initialSize[x].Y - Emitter.EndValue) / Emitter.MaxParticleLifeTime) *
timeSinceLastFrame);
size[x].X -= width;
size[x].Y -= height;
}
}
public void Modify(float timeSinceLastFrame, ParticleCollection particles)
{
var velocityX = particles.GetFloatValues("VelocityX");
var velocityY = particles.GetFloatValues("VelocityY");
var positionX = particles.GetFloatValues("PositionX");
var positionY = particles.GetFloatValues("PositionY");
var refPosX = particles.GetFloatValues("ReferencePositionX");
var refPosY = particles.GetFloatValues("ReferencePositionY");
var altitude = particles.GetFloatValues("Altitude");
int x;
var offset = Vector <float> .Count;
var nearestMultiple = NearestMultiple(Program.ParticleCount, offset);
for (x = 0; x < nearestMultiple; x += offset)
{
var refPosXSlice = refPosX.Slice(x, offset);
var refPosYSlice = refPosY.Slice(x, offset);
var posXSlice = positionX.Slice(x, offset);
var posYSlice = positionY.Slice(x, offset);
var refPosXVector = new Vector <float>(refPosXSlice);
var refPosYVector = new Vector <float>(refPosYSlice);
var altitudeVector = new Vector <float>(altitude.Slice(x, offset));
var velocityXVector = new Vector <float>(velocityX.Slice(x, offset));
var velocityYVector = new Vector <float>(velocityY.Slice(x, offset));
refPosXVector = (velocityXVector * timeSinceLastFrame) + refPosXVector;
refPosYVector = (velocityYVector * timeSinceLastFrame) + refPosYVector;
refPosXVector.CopyTo(refPosXSlice);
refPosYVector.CopyTo(refPosYSlice);
refPosXVector.CopyTo(posXSlice);
(refPosYVector + altitudeVector).CopyTo(posYSlice);
}
// Remaining
for (; x < Program.ParticleCount; ++x)
{
refPosX[x] += velocityX[x] * timeSinceLastFrame;
refPosY[x] += velocityY[x] * timeSinceLastFrame;
positionX[x] = refPosX[x];
positionY[x] = refPosY[x] + altitude[x];
}
}
public void Properties_Marked_As_Valid_For_Reading_Can_Be_Retrieved_As_Read_Only()
{
var property = new ParticleProperty(typeof(bool), "Something");
var allocator = new ParticleAllocator(10);
allocator.RegisterProperty(property.Type, property.Name);
var reservation = allocator.Reserve(5);
var collection = new ParticleCollection(reservation)
{
ValidPropertiesToRead = new HashSet <ParticleProperty>(new[] { property })
};
var result = collection.GetReadOnlyPropertyValues <bool>(property.Name);
result.Length.ShouldBe(reservation.Length);
}
public void Cannot_Get_Property_Not_In_Valid_Readable_Hash_Set()
{
var property1 = new ParticleProperty(typeof(bool), "Something");
var property2 = new ParticleProperty(typeof(bool), "Something2");
var allocator = new ParticleAllocator(10);
allocator.RegisterProperty(property1.Type, property1.Name);
allocator.RegisterProperty(property2.Type, property2.Name);
var reservation = allocator.Reserve(5);
var collection = new ParticleCollection(reservation)
{
ValidPropertiesToSet = new HashSet <ParticleProperty>(new[] { property1 })
};
Assert.ThrowsAny <Exception>(() => collection.GetReadOnlyPropertyValues <bool>(property2.Name));
}
public static bool Set(this CompiledParticle compiled, OpenXmlCompositeElement parent, OpenXmlElement value, Type type)
{
if (type is null)
{
return(false);
}
if (compiled is null)
{
return(false);
}
var collection = new ParticleCollection(type, compiled, parent);
collection.Clear();
return(collection.Add(value));
}
public Cannon(Ship owner, int barrelLength, Surface bulletSurface, float power, TimeSpan cooldown, float muzzleSpeed, int bulletLife)
{
this.owner = owner;
this.bulletSurface = bulletSurface;
this.power = power;
this.cooldown = cooldown;
this.muzzleSpeed = muzzleSpeed;
this.bulletLife = bulletLife;
this.barrelLength = barrelLength;
this.lastFiredTime = DateTime.MinValue;
this.bulletCollection = new ParticleCollection();
this.fireSound = new Sound(Configuration.Ships.Cannon.FiringSoundFilename);
this.fireSound.Volume = Configuration.SoundVolume;
this.dryFireSound = new Sound(Configuration.Ships.Cannon.DryFireSoundFilename);
this.dryFireSound.Volume = Configuration.SoundVolume;
}
public void ResetVoids(float factor)
{
particleCollection = new ParticleCollection(this);
voids.Clear();
voids.Add(new TheVoid(this)
{
direction = new Vector3(1, 0, 0),
horizontalPosition = -factor * World.WorldWidth / 2
});
voids.Add(new TheVoid(this)
{
direction = new Vector3(-1, 0, 0),
horizontalPosition = factor * World.WorldWidth / 2
});
}
public ParticleEnsemble(int nparticles, double MinRad, double MaxRad, List<string> FFtype, int Height, int Width, double scaleFactor)
{
int i;
// set the maximum number of particles to 1000
m_MaxNumberOfParticles = 1000;
Particles = new ParticleCollection(this, m_MaxNumberOfParticles);
// value of the boltzmann constant - we dont really care about units now...
kb = 8.314;
// value of the berendsen coupling constant - set this to be controlled by the artist...
m_BerendsenThermostatCoupling = 1.0;
m_EquilibriumTemperature = 20000;
BerendsenThermostat = true;
// BerendsenThermostat=false;
EnsembleReinitializationFlag = false;
NumberOfParticlesChangedFlag = false;
NumberOfParticlesIsGreaterFlag = false;
m_RadiiScaleFactor = 1.0;
InitialKE = 0.0;
m_GradientScaleFactor = scaleFactor;
step = 0;
//NumberOfParticles = nparticles;
m_BoxHeight = Height;
m_BoxWidth = Width;
m_MaxForceThreshold = 1.0e6;
m_InitialMaxForceThreshold = m_MaxForceThreshold;
// allocate maximum space for and initialize the velocity autocorrelation & FFT vectors
m_FFTenabled = true;
m_FFTofCorrelationFunction = new List<double>(new double[MAX_CORR_FTN_SIZE]);
m_VelocityAutoCorrelationFunction = new double[MAX_CORR_FTN_SIZE];
for (int ii = 0; ii < MAX_CORR_FTN_SIZE; ++ii)
{
m_VelocityAutoCorrelationFunction[ii] = 0.0;
m_FFTofCorrelationFunction[ii] = 0.0;
}
for (int ii = 0; ii < FFTmatrixForMovingAverage.Count(); ++ii)
{
FFTmatrixForMovingAverage[ii]= new List<double>(new double[m_NumberOfFFTAverages]);
for(int kk=0; kk < m_NumberOfFFTAverages; ++kk){
FFTmatrixForMovingAverage[ii][kk] = 0.0;
}
}
InitialMinVel = 100.0;
InitialMaxVel = 200.0;
for (int ii = 0; ii < m_MaxNumberOfParticles; ++ii)
{
InitializeOneNewParticle();
}
for (int ii = nparticles; ii < m_MaxNumberOfParticles; ++ii)
{
Particles.Pop();
}
if (!EliminateParticleOverlap(Height, Width))
{
// adjust particle positions to eliminate overlap
do
{
// if there's too many particles to fit in the simulation box
//NumberOfParticles -= 1;
Particles.Pop();
// decrement the particles till it's ok
EliminateParticleOverlap(Height, Width);
}
while (!EliminateParticleOverlap(Height, Width));
}
// create matrix to distanceMatrix & distanceMatrixLastTime
distanceMatrix = new DPMatrix(0.0, MaxNumberOfParticles, MaxNumberOfParticles);
distanceMatrixLastTime = new DPMatrix(0.0, MaxNumberOfParticles, MaxNumberOfParticles);
distanceMatrixLastLastTime = new DPMatrix(0.0, MaxNumberOfParticles, MaxNumberOfParticles);
// update the particlesWithinRange matrix
particlesWithinRange = new BoolMatrix(false, MaxNumberOfParticles, MaxNumberOfParticles);
// update the interparticle separation matrix
UpdateInterParticleSeparations();
m_PotentialEnergy = 0.0;
// push back forceField objects onto pForceFieldVector - at present, we only have LJ forces, but this can be
// easily expanded
for (i = 0; i < FFtype.Count; ++i)
{
if (FFtype[i] == "SoftSpheres") { ForceFields.Add(new SoftSpheres(this)); }
}
}
public override bool Update()
{
this.forwardThruster.Update();
this.reverseThruster.Update();
// Enforce the Ship's speed limit.
ParticleCollection particleCollection = new ParticleCollection();
particleCollection.Add(this);
this.speedLimiter.Manipulate(particleCollection);
return base.Update();
}
/// <summary>
/// Manipulate particles by the gravity.
/// </summary>
/// <param name="particles">The particles to pull by the gravity.</param>
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
{
throw new ArgumentNullException("particles");
}
foreach (BaseParticle p in particles)
{
p.Velocity += m_Velocity;
}
}
private void Tick(object sender, TickEventArgs e)
{
DateTime now = DateTime.Now;
// Read the "game has begun" flag.
bool gameHasBegun = this.theGameHasBegun;
// Fill in the background.
Video.Screen.Fill(Color.Black);
Video.Screen.Blit(this.background);
// Update all the particles in the universe.
this.particleSystem.Update();
if (gameHasBegun)
{
// The game has begun.
// Spawn player 1.
if (this.player1.Ship == null
|| !this.player1.Ship.Alive && this.player1.Ship.RespawnTime < now)
SpawnShip(1);
// Spawn player 2.
if (this.player2.Ship == null
|| !this.player2.Ship.Alive && this.player2.Ship.RespawnTime < now)
SpawnShip(2);
if (this.player1.Ship != null && this.player2.Ship != null)
{
// Perform user control (input) related updates.
// Player 1.
Bullet bullet = this.player1.ProcessUserInput();
if (bullet != null)
this.particleSystem.Particles.Add(bullet);
// Player 2.
bullet = this.player2.ProcessUserInput();
if (bullet != null)
this.particleSystem.Particles.Add(bullet);
// Check for collisions.
EnforceCollisions();
}
}
// Enforce the Ship's speed limit last.
ParticleCollection particleCollection = new ParticleCollection();
particleCollection.Add(this.particleSystem);
this.speedLimitManipulator.Manipulate(particleCollection);
// Render all the particles in the universe.
this.particleSystem.Render(Video.Screen);
if (!gameHasBegun)
{
// The game hasn't actually started yet.
// Display the title screen.
this.mainTitle.Refresh();
}
else
{
// Display the plain InfoBar graphic.
Video.Screen.Blit(this.infoBar, Configuration.InfoBarPosition);
// Display the scoreCards on the InfoBar.
this.player1.ScoreCard.Refresh(Video.Screen);
this.player2.ScoreCard.Refresh(Video.Screen);
}
// Display the back-buffer onto the screen surface (double-buffering).
Video.Screen.Update();
}
/// <summary>
/// Sets the particle collection where this emitter is to send its particles.
/// </summary>
/// <remarks>FXCop does not setting the collection directly in the property</remarks>
/// <param name="particleCollection"></param>
public void SetParticleTarget(ParticleCollection particleCollection)
{
m_Target = particleCollection;
}
/// <summary>
/// Creates an empty particle system with one particle manipulator.
/// </summary>
/// <param name="manipulator">The manipulator to use with this particle system.</param>
public ParticleSystem(IParticleManipulator manipulator)
{
m_Manipulators = new ParticleManipulatorCollection();
m_Manipulators.Add(manipulator);
m_Particles = new ParticleCollection();
}
/// <summary>
/// Copy Constructor.
/// </summary>
/// <param name="system">The particle system to copy.</param>
public ParticleSystem(ParticleSystem system)
{
if (system == null)
{
throw new ArgumentNullException("system");
}
m_Manipulators = new ParticleManipulatorCollection(system.Manipulators);
m_Particles = new ParticleCollection();
m_Particles.Add(system);
}
/// <summary>
/// Creates an empty particle system with no manipulators.
/// </summary>
public ParticleSystem()
{
m_Manipulators = new ParticleManipulatorCollection();
m_Particles = new ParticleCollection();
}
private void EnforceCollisions()
{
// Enforce Ship-Planet Impact.
if (this.player1.Ship.Alive && this.player1.Ship.Collision(this.planet))
Impact(this.player1.Ship, this.planet);
if (this.player2.Ship.Alive && this.player2.Ship.Collision(this.planet))
Impact(this.player2.Ship, this.planet);
// Enforce Ship-Ship Impact.
if (this.player1.Ship.Alive && this.player2.Ship.Alive && this.player1.Ship.Collision(this.player2.Ship))
Impact(this.player1.Ship, this.player2.Ship);
/* Create a shallow copy of the bullet particles to work with;
* otherwise things go all wonky when we add particles during
* iteration (i.e. explosions).
*/
ParticleCollection bulletParticles = new ParticleCollection();
foreach (BaseParticle p in this.particleSystem.Particles)
if ((Type)p.GetType() == typeof(Bullet))
bulletParticles.Add(p);
foreach (Bullet b in bulletParticles)
{
// Enforce Ship-Bullet impact.
if (this.player1.Ship.Collision(b))
Impact(this.player1.Ship, b);
if (this.player2.Ship.Collision(b))
Impact(this.player2.Ship, b);
// Enforce Planet-Bullet impact.
if (this.planet.Collision(b))
Impact(this.planet, b);
}
}
/// <summary>
/// Creates a particle system with an already created manipulators and particles.
/// </summary>
/// <param name="manipulators">The manipulators to associate with this particle system.</param>
/// <param name="particles">The particles to add to this particle system.</param>
public ParticleSystem(ParticleManipulatorCollection manipulators, ParticleCollection particles)
{
m_Manipulators = manipulators;
m_Particles = new ParticleCollection();
m_Particles.Add(particles);
}
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
/* They do this check in C# SDL Manipulators. Why rock the
* boat?
*/
throw new ArgumentNullException("particles");
// Exert gravitational force on every particle in the list.
foreach (BaseParticle particle in particles)
{
if (particle.Static)
// Static particles are immobile.
continue;
/* Create a vector from the particle's position to the gravity
* well. Then get the distance and angle from it.
*/
Vector v = new Vector(particle.X, particle.Y, 0, position.X, position.Y, 0);
double distance = v.Length;
if (distance > radius)
// This particle is too far away to be affected.
continue;
// Get the pull direction.
int directionDeg = Convert.ToInt32(Math.Round(v.DirectionDeg));
float force = GetForce(distance);
// Create a vector from the force and the direction.
v = Vector.FromDirection(directionDeg, force);
// Add the new vector to the particle.
particle.Velocity += v;
}
}
/// <summary>
/// Makes sure that every particle is within the given boundary.
/// </summary>
/// <param name="particles">The particle collection to set inside the bounds.</param>
/// <remarks>Particles that reach the outside the rectangle are bounced back into bounds.</remarks>
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
{
throw new ArgumentNullException("particles");
}
foreach (BaseParticle p in particles)
{
if (p.Left < this.Left)
{
p.X = this.Left;
Vector vel = p.Velocity;
vel.X *= -1;
p.Velocity = vel;
}
else if (p.Right > this.Right)
{
p.X = this.Right - p.Width;
Vector vel = p.Velocity;
vel.X *= -1;
p.Velocity = vel;
}
else if (p.Top < this.Top)
{
p.Y = this.Top;
Vector vel = p.Velocity;
vel.Y *= -1;
p.Velocity = vel;
}
else if (p.Bottom > this.Bottom)
{
p.Y = this.Bottom - p.Height;
Vector vel = p.Velocity;
vel.Y *= -1;
p.Velocity = vel;
}
}
}
/// <summary>
/// Applies the vortex force on each particle in the vortex's radius.
/// </summary>
/// <param name="particles">The collection of particles to manipulate.</param>
public void Manipulate(ParticleCollection particles)
{
if (particles == null)
{
throw new ArgumentNullException("particles");
}
foreach (BaseParticle p in particles)
{
Vector v = new Vector(p.X, p.Y, 0, m_X, m_Y, 0);
if (m_Radius == -1f)
{
v.Length = m_Strength;
}
else
{
if (v.Length > m_Radius)
continue;
v.Length = (1f - v.Length / m_Radius) * m_Strength;
}
p.Velocity += v;
}
}