public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = RandomNumber.Between(0.3f, 0.7f);
particle.Color = particle.StartColor = ExplosionColor;
particle.EndColor = Color.Black;
particle.Position = Emitter.PositionData.Position + new Vector3(RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25));
particle.Velocity = DPSFHelper.RandomNormalizedVector() * RandomNumber.Next(1, 50);
particle.ExternalForce = new Vector3(0, 80, 0); // We want the smoke to rise
particle.Size = particle.StartSize = 1; // Have the particles start small and grow
particle.EndSize = ExplosionParticleSize;
// Give the particle a random initial orientation and random rotation velocity (only need to Roll the particle since it will always face the camera)
particle.Rotation = RandomNumber.Between(0, MathHelper.TwoPi);
particle.RotationalVelocity = RandomNumber.Between(-MathHelper.PiOver2, MathHelper.PiOver2);
// Randomly pick which texture coordinates to use for this particle
Rectangle textureCoordinates;
switch (RandomNumber.Next(0, 4))
{
default:
case 0: textureCoordinates = _flameSmoke1TextureCoordinates; break;
case 1: textureCoordinates = _flameSmoke2TextureCoordinates; break;
case 2: textureCoordinates = _flameSmoke3TextureCoordinates; break;
case 3: textureCoordinates = _flameSmoke4TextureCoordinates; break;
}
particle.SetTextureCoordinates(textureCoordinates);
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = 0.2f;
particle.Color = ExplosionColor;
particle.Position = Emitter.PositionData.Position + new Vector3(RandomNumber.Next(-15, 15), RandomNumber.Next(-15, 15), RandomNumber.Next(-15, 15));
particle.Size = particle.StartSize = 1;
particle.EndSize = ExplosionParticleSize;
// Randomly pick which texture coordinates to use for this particle
Rectangle textureCoordinates;
switch (RandomNumber.Next(0, 4))
{
default:
case 0: textureCoordinates = _flash1TextureCoordinates; break;
case 1: textureCoordinates = _flash2TextureCoordinates; break;
case 2: textureCoordinates = _flash3TextureCoordinates; break;
case 3: textureCoordinates = _flash4TextureCoordinates; break;
}
particle.SetTextureCoordinates(textureCoordinates);
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = RandomNumber.Between(0.5f, 1.0f);
particle.Color = ExplosionColor;
particle.Position = Emitter.PositionData.Position + new Vector3(RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25));
particle.Velocity = DPSFHelper.RandomNormalizedVector() * RandomNumber.Next(30, 50);
particle.ExternalForce = new Vector3(0, 20, 0);
particle.Size = ExplosionParticleSize;
particle.SetTextureCoordinates(_roundSparkTextureCoordinates);
}
protected void UpdateParticleFireSmokeSize(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have particle grow to its full size within the first 20% of its lifetime
if (particle.NormalizedElapsedTime < 0.2f)
{
particle.Size = MathHelper.Lerp(particle.StartWidth, particle.EndWidth, particle.NormalizedElapsedTime * 5);
}
else
{
particle.Size = particle.EndWidth;
}
}
//===========================================================
// Particle Update Functions
//===========================================================
protected void UpdateParticleFireSmokeColor(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have particle be the specified color for the first part of its lifetime
float firstPartOfLifetime = 0.2f;
if (particle.NormalizedElapsedTime < firstPartOfLifetime)
{
particle.Color = particle.StartColor;
}
// Then start fading it to black to look like smoke
else
{
float lerpAmount = (particle.NormalizedElapsedTime - firstPartOfLifetime) * (1.0f / (1.0f - firstPartOfLifetime));
particle.Color = DPSFHelper.LerpColor(particle.StartColor, particle.EndColor, lerpAmount);
}
}
//===========================================================
// Particle Update Functions
//===========================================================
protected void UpdateParticleFlashSize(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have the particle reach its full size when it reaches half its lifetime, and then shrink back to nothing
particle.Size = MathHelper.Lerp(particle.StartSize, particle.EndSize, DPSFHelper.InterpolationAmountForEqualLerpInAndLerpOut(particle.NormalizedElapsedTime));
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = 0.2f;
particle.Color = ExplosionColor;
particle.Position = Emitter.PositionData.Position + new Vector3(RandomNumber.Next(-15, 15), RandomNumber.Next(-15, 15), RandomNumber.Next(-15, 15));
particle.Size = particle.StartSize = 1;
particle.EndSize = ExplosionParticleSize;
// Randomly pick which texture coordinates to use for this particle
Rectangle textureCoordinates;
switch (RandomNumber.Next(0, 4))
{
default:
case 0: textureCoordinates = _flash1TextureCoordinates; break;
case 1: textureCoordinates = _flash2TextureCoordinates; break;
case 2: textureCoordinates = _flash3TextureCoordinates; break;
case 3: textureCoordinates = _flash4TextureCoordinates; break;
}
particle.SetTextureCoordinates(textureCoordinates);
}
//===========================================================
// Particle Update Functions
//===========================================================
protected void UpdateParticleFlashSize(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have the particle reach its full size when it reaches half its lifetime, and then shrink back to nothing
particle.Size = MathHelper.Lerp(particle.StartSize, particle.EndSize, DPSFHelper.InterpolationAmountForEqualLerpInAndLerpOut(particle.NormalizedElapsedTime));
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = RandomNumber.Between(0.3f, 0.7f);
particle.Color = particle.StartColor = ExplosionColor;
particle.EndColor = Color.Black;
particle.Position = Emitter.PositionData.Position + new Vector3(RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25));
particle.Velocity = DPSFHelper.RandomNormalizedVector() * RandomNumber.Next(1, 50);
particle.ExternalForce = new Vector3(0, 80, 0); // We want the smoke to rise
particle.Size = particle.StartSize = 1; // Have the particles start small and grow
particle.EndSize = ExplosionParticleSize;
// Give the particle a random initial orientation and random rotation velocity (only need to Roll the particle since it will always face the camera)
particle.Rotation = RandomNumber.Between(0, MathHelper.TwoPi);
particle.RotationalVelocity = RandomNumber.Between(-MathHelper.PiOver2, MathHelper.PiOver2);
// Randomly pick which texture coordinates to use for this particle
Rectangle textureCoordinates;
switch (RandomNumber.Next(0, 4))
{
default:
case 0: textureCoordinates = _flameSmoke1TextureCoordinates; break;
case 1: textureCoordinates = _flameSmoke2TextureCoordinates; break;
case 2: textureCoordinates = _flameSmoke3TextureCoordinates; break;
case 3: textureCoordinates = _flameSmoke4TextureCoordinates; break;
}
particle.SetTextureCoordinates(textureCoordinates);
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = RandomNumber.Between(1.2f, 1.7f);
particle.Color = particle.StartColor = ExplosionColor;
particle.EndColor = Color.DarkGray;
particle.Position = Emitter.PositionData.Position;
particle.ExternalForce = new Vector3(0, -80, 0);
particle.RotationalVelocity = RandomNumber.Between(-MathHelper.PiOver2, MathHelper.PiOver2);
particle.Velocity = DPSFHelper.RandomNormalizedVector(); // Calculate the direction the particle will travel in
// We want the debris to travel upwards more often than downward, so if it's travelling downward switch it to travel upward 50% of the time
if (particle.Velocity.Y < 0 && RandomNumber.Next(0, 2) == 0)
particle.Velocity.Y *= -1;
// Fire some particles towards the camera (but not directly at it) for a more dramatic effect
if (RandomNumber.Between(0, 5) == 0)
{
// Calculate a point somewhere around the camera
int distance = 10;
Vector3 somewhereAroundTheCamera = new Vector3(CameraPosition.X + RandomNumber.Next(-distance, distance),
CameraPosition.Y + RandomNumber.Next(-distance, distance),
CameraPosition.Z + RandomNumber.Next(-distance, distance));
// Direct the Particle towards the spot around the camera
particle.Velocity = somewhereAroundTheCamera - particle.Position;
particle.Velocity.Normalize();
}
// Set the Particle's Speed
particle.Velocity *= RandomNumber.Next(100, 150);
// Randomly pick which texture coordinates to use for this particle
Rectangle textureCoordinates;
switch (RandomNumber.Next(0, 9))
{
default:
case 0: textureCoordinates = _debris1TextureCoordinates; break;
case 1: textureCoordinates = _debris2TextureCoordinates; break;
case 2: textureCoordinates = _debris3TextureCoordinates; break;
case 3: textureCoordinates = _debris4TextureCoordinates; break;
case 4: textureCoordinates = _debris5TextureCoordinates; break;
case 5: textureCoordinates = _debris6TextureCoordinates; break;
case 6: textureCoordinates = _debris7TextureCoordinates; break;
case 7: textureCoordinates = _debris8TextureCoordinates; break;
case 8: textureCoordinates = _debris9TextureCoordinates; break;
}
particle.SetTextureCoordinates(textureCoordinates);
// Set the Width to Height ratio so the image isn't skewed when we scale it
particle.Width = textureCoordinates.Width;
particle.Height = textureCoordinates.Height;
// Set the particle to the specified size, give or take 25%
particle.ScaleToWidth(ExplosionParticleSize * RandomNumber.Between(0.75f, 1.25f));
}
/// <summary>
/// Updates the Particle's DistanceFromCameraSquared property to reflect how far this Particle is from the Camera.
/// </summary>
/// <param name="cParticle">The Particle to update.</param>
/// <param name="fElapsedTimeInSeconds">How long it has been since the last update.</param>
protected void UpdateParticleDistanceFromCameraSquared(DefaultSprite3DBillboardTextureCoordinatesParticle cParticle, float fElapsedTimeInSeconds)
{
//cParticle.DistanceFromCameraSquared = Vector3.DistanceSquared(this.CameraPosition, cParticle.Position);
}
//===========================================================
// Particle Update Functions
//===========================================================
protected void BounceOffFloor(DefaultSprite3DBillboardTextureCoordinatesParticle cParticle, float fElapsedTimeInSeconds)
{
// If the Particle has hit the floor and is still travelling downwards
if (cParticle.Position.Y <= 0 && cParticle.Velocity.Y < 0)
{
// Make the Particle Bounce upwards
cParticle.Velocity.Y *= -mfBounciness;
// Reduce the Particles X and Z speed
cParticle.Velocity.X *= 0.8f;
cParticle.Velocity.Z *= 0.8f;
// Reduce the Particles Rotation speed
cParticle.RotationalVelocity *= 0.8f;
}
}
public void InitializeParticleWithTextureCoordinates(DefaultSprite3DBillboardTextureCoordinatesParticle cParticle)
{
// Initialize the particle using the InitialProperties specified above
InitializeParticleUsingInitialProperties(cParticle);
// Randomly pick which texture coordinates to use for this particle
Rectangle sTextureCoordinates;
switch (RandomNumber.Next(0, 4))
{
default:
case 0: sTextureCoordinates = msCloudTextureCoordinates; break;
case 1: sTextureCoordinates = msSparkTextureCoordinates; break;
case 2: sTextureCoordinates = msRockTextureCoordinates; break;
case 3: sTextureCoordinates = msRingTextureCoordinates; break;
}
// Set the Particle's Texture Coordinates
cParticle.SetTextureCoordinates(sTextureCoordinates);
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = RandomNumber.Between(1.2f, 1.7f);
particle.Color = particle.StartColor = ExplosionColor;
particle.EndColor = Color.DarkGray;
particle.Position = Emitter.PositionData.Position;
particle.ExternalForce = new Vector3(0, -80, 0);
particle.RotationalVelocity = RandomNumber.Between(-MathHelper.PiOver2, MathHelper.PiOver2);
particle.Velocity = DPSFHelper.RandomNormalizedVector(); // Calculate the direction the particle will travel in
// We want the debris to travel upwards more often than downward, so if it's travelling downward switch it to travel upward 50% of the time
if (particle.Velocity.Y < 0 && RandomNumber.Next(0, 2) == 0)
{
particle.Velocity.Y *= -1;
}
// Fire some particles towards the camera (but not directly at it) for a more dramatic effect
if (RandomNumber.Between(0, 5) == 0)
{
// Calculate a point somewhere around the camera
int distance = 10;
Vector3 somewhereAroundTheCamera = new Vector3(CameraPosition.X + RandomNumber.Next(-distance, distance),
CameraPosition.Y + RandomNumber.Next(-distance, distance),
CameraPosition.Z + RandomNumber.Next(-distance, distance));
// Direct the Particle towards the spot around the camera
particle.Velocity = somewhereAroundTheCamera - particle.Position;
particle.Velocity.Normalize();
}
// Set the Particle's Speed
particle.Velocity *= RandomNumber.Next(100, 150);
// Randomly pick which texture coordinates to use for this particle
Rectangle textureCoordinates;
switch (RandomNumber.Next(0, 9))
{
default:
case 0: textureCoordinates = _debris1TextureCoordinates; break;
case 1: textureCoordinates = _debris2TextureCoordinates; break;
case 2: textureCoordinates = _debris3TextureCoordinates; break;
case 3: textureCoordinates = _debris4TextureCoordinates; break;
case 4: textureCoordinates = _debris5TextureCoordinates; break;
case 5: textureCoordinates = _debris6TextureCoordinates; break;
case 6: textureCoordinates = _debris7TextureCoordinates; break;
case 7: textureCoordinates = _debris8TextureCoordinates; break;
case 8: textureCoordinates = _debris9TextureCoordinates; break;
}
particle.SetTextureCoordinates(textureCoordinates);
// Set the Width to Height ratio so the image isn't skewed when we scale it
particle.Width = textureCoordinates.Width;
particle.Height = textureCoordinates.Height;
// Set the particle to the specified size, give or take 25%
particle.ScaleToWidth(ExplosionParticleSize * RandomNumber.Between(0.75f, 1.25f));
}
//===========================================================
// Particle Update Functions
//===========================================================
protected void UpdateParticleFireSmokeColor(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have particle be the specified color for the first part of its lifetime
float firstPartOfLifetime = 0.2f;
if (particle.NormalizedElapsedTime < firstPartOfLifetime)
{
particle.Color = particle.StartColor;
}
// Then start fading it to black to look like smoke
else
{
float lerpAmount = (particle.NormalizedElapsedTime - firstPartOfLifetime) * (1.0f / (1.0f - firstPartOfLifetime));
particle.Color = DPSFHelper.LerpColor(particle.StartColor, particle.EndColor, lerpAmount);
}
}
public void InitializeParticleExplosion(DefaultSprite3DBillboardTextureCoordinatesParticle particle)
{
particle.Lifetime = RandomNumber.Between(0.5f, 1.0f);
particle.Color = ExplosionColor;
particle.Position = Emitter.PositionData.Position + new Vector3(RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25), RandomNumber.Next(-25, 25));
particle.Velocity = DPSFHelper.RandomNormalizedVector() * RandomNumber.Next(30, 50);
particle.ExternalForce = new Vector3(0, 20, 0);
particle.Size = ExplosionParticleSize;
particle.SetTextureCoordinates(_roundSparkTextureCoordinates);
}
protected void UpdateParticleFireSmokeSize(DefaultSprite3DBillboardTextureCoordinatesParticle particle, float elapsedTimeInSeconds)
{
// Have particle grow to its full size within the first 20% of its lifetime
if (particle.NormalizedElapsedTime < 0.2f)
{
particle.Size = MathHelper.Lerp(particle.StartWidth, particle.EndWidth, particle.NormalizedElapsedTime * 5);
}
else
{
particle.Size = particle.EndWidth;
}
}
