/// <summary>
/// Constructs a new particle emitter object.
/// </summary>
public XParticleEmitter(ref XMain X, XParticleSystem particleSystem,
float particlesPerSecond, Vector3 initialPosition) : base(ref X)
{
this.particleSystem = particleSystem;
timeBetweenParticles = 1.0f / particlesPerSecond;
previousPosition = initialPosition;
}
/// <summary>
/// Constructs a new projectile.
/// </summary>
public XProjectile(ref XMain X, XParticleSystem explosionParticles,
XParticleSystem explosionSmokeParticles,
XParticleSystem projectileTrailParticles) : base(ref X)
{
this.explosionParticles = explosionParticles;
this.explosionSmokeParticles = explosionSmokeParticles;
// Start at the origin, firing in a random (but roughly upward) direction.
position = Vector3.Zero;
velocity.X = (float)(random.NextDouble() - 0.5) * sidewaysVelocityRange;
velocity.Y = (float)(random.NextDouble() + 0.5) * verticalVelocityRange;
velocity.Z = (float)(random.NextDouble() - 0.5) * sidewaysVelocityRange;
// Use the particle emitter helper to output our trail particles.
trailEmitter = new XParticleEmitter(ref X, projectileTrailParticles,
trailParticlesPerSecond, position);
}
