/// <summary>
/// Constructs a new projectile.
/// </summary>
public Projectile(ParticleSystem explosionParticles,
ParticleSystem explosionSmokeParticles,
ParticleSystem projectileTrailParticles)
{
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 ParticleEmitter(projectileTrailParticles,
trailParticlesPerSecond, position);
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
//Initialise objects
camera = new Camera();
spaceship = new Spaceship();
planet = new Planet();
fuelCells = new FuelCell[numFuelCells];
turrets = new Turret[numTurrets];
readyMissiles = new List<Missile>();
firedMissiles = new List<Missile>();
boundingSphere = new GameObject();
explosions = new List<Explosion>();
//Initialise particle effect variables
fireParticles = new FireParticleSystem(this, Content);
fireParticles.DrawOrder = 500;
Components.Add(fireParticles);
explosionParticles = new ExplosionParticleSystem(this, Content);
explosionParticles.DrawOrder = 500;
Components.Add(explosionParticles);
base.Initialize();
}
Vector3 position; //The explosions position in space
#endregion Fields
#region Constructors
/// <summary>
/// Creates a new game explosion.
/// </summary>
/// <param name="particleSystem">The particle system to emit particles with</param>
/// <param name="position">The position to place the particle emitter</param>
public Explosion(ParticleSystem particleSystem, Vector3 position)
{
Age = 0;
this.position = position;
explosionParticleEmitter = new ParticleEmitter(particleSystem, 1000, position);
}
/// <summary>
/// Constructs a new particle emitter object.
/// </summary>
public ParticleEmitter(ParticleSystem particleSystem, float particlesPerSecond, Vector3 initialPosition)
{
this.particleSystem = particleSystem;
timeBetweenParticles = 1.0f / particlesPerSecond;
previousPosition = initialPosition;
}