/// <summary>
/// Constructs a new projectile.
/// </summary>
public Projectile(ParticleSystem explosionParticles, ParticleSystem explosionSmokeParticles, ParticleSystem projectileTrailParticles, MovableEntity origin, MovableEntity aTarget)
{
this.explosionParticles = explosionParticles;
this.explosionSmokeParticles = explosionSmokeParticles;
// Start at the origin, firing in a random (but roughly upward) direction.
position = origin.getPosition();
target = aTarget.getPosition();
targetEntity = aTarget;
//velocity.X = (float)(random.NextDouble() - 0.5) * sidewaysVelocityRange;
//velocity.Y = (float)(random.NextDouble() - 0.5) * sidewaysVelocityRange;
//velocity.Z = (float)(random.NextDouble() + 0.5) * verticalVelocityRange;
double step = Math.PI / 60;
//Vector3 mid = (aTarget + aPosition) / 2;
float radius = Math.Abs(Vector3.Distance(target, position) / 2);
List<Vector3> path = new List<Vector3>();
for (int i = 0; i <= 60; i++)
{
float thisX = MathHelper.Lerp(position.X, target.X, ((float)i) / 60);
float thisY = MathHelper.Lerp(position.Y, target.Y, ((float)i) / 60);
float thisZ = MathHelper.Lerp(position.Z, target.Z, ((float)i) / 60) + radius * (float)Math.Cos(step*(i - 30));
path.Add(new Vector3(thisX, thisY, thisZ));
}
myPath = new Path(path);
// Use the particle emitter helper to output our trail particles.
trailEmitter = new ParticleEmitter(projectileTrailParticles, trailParticlesPerSecond, 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;
}