public Shell(Vector3 position, Vector3 cannonFacing, Vector3 cannonVelocity, float startSpeed, object shellOwner)
{
int segments = 8;
List<Vector3> vertices = new List<Vector3>(segments + 1);
//float unitradius = (float)Math.Sqrt(8);
float angleStep = (float)(2 * Math.PI / segments);
for (int i = 0; i < segments; i++)
{
vertices.Add(new Vector3((float)Math.Cos(angleStep * i) * radius, (float)Math.Sin(angleStep * i) * radius, 0));
}
vertices.Add(new Vector3(radius, 0, 0));
graphics = GraphicsAspect.Create(this, vertices, position, 1, Color.White, Color.Red);
// вычисляем вектор полёта снаряда - сумма импульса выстрела и собственной скорости оружия
cannonFacing.NormalizeFast();
Vector3 shootVelocity = cannonFacing * startSpeed + cannonVelocity;
Vector2 shootDirection = shootVelocity.Xy;
shootDirection.NormalizeFast();
//physics = new PhysicsAspect(this, position, shootVelocity.Xy, startSpeed);
physics = PhysicsAspect.Create(this, position, shootDirection, shootVelocity.LengthFast);
bounds = BoundSetAspect.Create(this, null);
BoundsAspect bound = CircleBoundsAspect.Create(bounds, position.Xy, radius);
bounds.AddBound(bound);
// снаряд будет быстродвижущимся объектом, для него особый алгоритм определения столкновений
bounds.SetAttribute(Strings.CollisionDetectionSpeedType, Strings.CollisionDetectionSpeedTypeFast);
damage = DamageAspect.Create(this, 1);
//physics = new PhysicsAspect(this, position, Vector2.Zero, 0);
//timer = DestroyByTimerAspect.Create(this, new TimeSpan(0, 0, 0, 2, 500));
timer = DestroyByTimerAspect.Create(this, new TimeSpan(0, 0, 0, 1, 0));
this.shellOwner = shellOwner;
this.name = "shell";
MessageDispatcher.RegisterHandler(typeof(SetPosition), bounds);
MessageDispatcher.RegisterHandler(typeof(SetPosition), graphics);
MessageDispatcher.RegisterHandler(typeof(DestroyChildrenOf), this);
MessageDispatcher.RegisterHandler(typeof(Kill), this);
messageHandler.Handlers.Add(typeof(Kill), HandleKill);
}
private bool HandleKill(object message)
{
Kill kill = (Kill)message;
if (kill.Target == this)
{
// убираем все аспекты, кроме графического, чтобы показать анимацию уничтожения
MessageDispatcher.Post(new DestroySelf(thrusterController));
MessageDispatcher.Post(new DestroySelf(physics));
MessageDispatcher.Post(new DestroySelf(bounds));
MessageDispatcher.Post(new DestroySelf(damage));
MessageDispatcher.Post(new DestroySelf(leftCannon));
MessageDispatcher.Post(new DestroySelf(rightCannon));
MessageDispatcher.Post(new DestroySelf(rearCannon));
timer = DestroyByTimerAspect.Create(this, new TimeSpan(0, 0, 0, 2, 0));
}
return true;
}
public static DestroyByTimerAspect Create(object owner, TimeSpan timeToLive)
{
DestroyByTimerAspect aspect = new DestroyByTimerAspect(owner, timeToLive);
aspect.RegisterAllStuff();
return aspect;
}