public EventPacket MakeMouseEventPacket(MouseState mouseState, Position mousePosition)
{
MouseEvent mouseEvent = new MouseEvent(mouseState,mousePosition);
byte[] data = EventCodec.Instance.Serialize<MouseEvent>(mouseEvent);
EventPacket packet = new EventPacket(EventTypes.MOUSE_INPUT, data);
return packet;
}
public EventPacket MakeKeyboardEventPacket(KeyboardState keyboardState)
{
KeyboardEvent keyboardEvent = new KeyboardEvent(keyboardState);
byte[] data = EventCodec.Instance.Serialize<KeyboardEvent>(keyboardEvent);
EventPacket packet = new EventPacket(EventTypes.KEYBOARD_INPUT, data);
return packet;
}
void spawnExplosion(EventPacket newEvent)
{
//Position position = EventCodec.Instance.BytesToPosition(newEvent.Data);
ExplosionEvent explosionEvent = EventCodec.Instance.Deserialize<ExplosionEvent>(newEvent.Data);
IGameObject explosion = _objectFactory.MakeExplosion(explosionEvent.Position, explosionEvent.Intensity);
_objectContainer.Add(explosion);
}
void spawnAirBurst(EventPacket newEvent)
{
//Position position = EventCodec.Instance.BytesToPosition(newEvent.Data);
AirBurstEvent explosionEvent = EventCodec.Instance.Deserialize<AirBurstEvent>(newEvent.Data);
IGameObject airburst = _objectFactory.MakeAirBurst(explosionEvent.Position, explosionEvent.Intensity);
_objectContainer.Add(airburst);
}
void notifyObservers(EventPacket pendingEvent)
{
foreach (IObserver observer in listenerTable[pendingEvent.Type])
{
observer.Notify(pendingEvent);
}
}
public EventPacket MakeExplosionEventPacket(Position position, double intensity)
{
ExplosionEvent explosion = new ExplosionEvent(position, intensity);
Console.WriteLine("EvtFact, position is: " + position.X + ":" + position.Y);
byte[] data = EventCodec.Instance.Serialize<ExplosionEvent>(explosion);
EventPacket packet = new EventPacket(EventTypes.EXPLOSION, data);
return packet;
}
public EventPacket MakeAirBurstEventPacket(Position position, double intensity)
{
AirBurstEvent airBurstEvent = new AirBurstEvent(position, intensity);
Console.WriteLine("EvtFact, airburst position is: " + position.X + ":" + position.Y);
byte[] data = EventCodec.Instance.Serialize<AirBurstEvent>(airBurstEvent);
EventPacket packet = new EventPacket(EventTypes.AIR_BURST, data);
return packet;
}
/// <summary>
/// Given an initialization vector, returns a packet describing a missile spawn event.
/// </summary>
/// <param name="startVector"></param>
/// <returns>A missile spawn event packet.</returns>
public EventPacket MakeSpawnMissileEventPacket(Particle startVector)
{
SpawnMissileEvent missileSpawn = new SpawnMissileEvent(startVector);
byte[] eventData = EventCodec.Instance.Serialize<SpawnMissileEvent>(missileSpawn);
EventPacket eventPacket = new EventPacket(EventTypes.SPAWN_MISSILE, eventData);
return eventPacket;
}
/// <summary>
/// spawnExplosion() spawns an explosion at an exact location. This version spawns an
/// explosion at a random location very near to the position specific by event, for a nice
/// multi-explosion effect.
/// </summary>
/// <param name="newEvent"></param>
void spawnFuzzyExplosion(EventPacket newEvent)
{
//Position position = EventCodec.Instance.BytesToPosition(newEvent.Data);
ExplosionEvent explosionEvent = EventCodec.Instance.Deserialize<ExplosionEvent>(newEvent.Data);
Position fuzzyPosition = Position.GetFuzzyPosition(explosionEvent.Position, GameParameters.MISSILE_DETONATION_FUZZ_FACTOR);
IGameObject explosion = _objectFactory.MakeExplosion(fuzzyPosition, explosionEvent.Intensity);
_objectContainer.Add(explosion);
}
/// <summary>
/// Only discrete mouse clicks are handled for now, which trigger
/// turret shots, if in active region.
/// </summary>
void handleMouseClick(EventPacket newEvent)
{
MouseEvent mouseEvent = EventCodec.Instance.Deserialize<MouseEvent>(newEvent.Data);
//only detect left click rising edge
if (mouseEvent.IsLeftClick)
{
Position target = mouseEvent.EventPosition;
fireTurret(target);
}
}
/*
Could demux these using Chain of Responsibility pattern: have this class deque events,
* then iterate list of listeners, cal dispatch on each, first that returns true break loop
* and pass event into object.
*/
public void Notify(EventPacket newEvent)
{
switch (newEvent.Type)
{
case EventTypes.AIR_BURST:
spawnAirBurst(newEvent);
spawnFuzzyAirBurst(newEvent);
spawnFuzzyAirBurst(newEvent);
break;
case EventTypes.SPAWN_MIRV:
spawnMirv(newEvent);
break;
case EventTypes.CITY_DESTROYED:
break;
case EventTypes.SPAWN_BOMBER:
spawnBomber(newEvent);
break;
case EventTypes.SPAWN_MISSILE:
spawnMissile(newEvent);
break;
case EventTypes.COLLISION:
break;
case EventTypes.EXPLOSION:
spawnExplosion(newEvent);
spawnFuzzyExplosion(newEvent);
spawnFuzzyExplosion(newEvent);
break;
case EventTypes.OUT_OF_AMMO:
break;
case EventTypes.TURRET_SHOT:
spawnTurretShot(newEvent);
break;
case EventTypes.MOUSE_INPUT:
handleMouseClick(newEvent);
break;
case EventTypes.KEYBOARD_INPUT:
//Console.WriteLine("Keyboard input received as null...");
break;
default:
Console.WriteLine("ERROR ExplosionObserver notified of unmapped event type: " + newEvent.Type.ToString());
//GameLogger.Instance.Write("ERROR ExplosionObserver notified of unmapped event type: " + newEvent.Type.ToString());
break;
}
}
void spawnMirv(EventPacket newEvent)
{
SpawnMirvEvent mirvEvent = EventCodec.Instance.Deserialize<SpawnMirvEvent>(newEvent.Data);
IGameObject mirv = _objectFactory.MakeMirv(mirvEvent.StartVector, mirvEvent.DeployAltitude);
_objectContainer.Add(mirv);
}
void spawnTurretShot(EventPacket newEvent)
{
SpawnTurretShotEvent turretShotEvent = EventCodec.Instance.Deserialize<SpawnTurretShotEvent>(newEvent.Data);
double ang = Position.pointTangent(turretShotEvent.Source,turretShotEvent.Target);
Particle initialVector = new Particle(GameParameters.TURRET_SHOT_VELOCITY, GameParameters.TURRET_SHOT_ACCELERATION, ang, turretShotEvent.Source);
IGameObject turretShot = _objectFactory.MakeTurretShot(initialVector,turretShotEvent.Target);
_objectContainer.Add(turretShot);
}
void spawnBomber(EventPacket newEvent)
{
SpawnBomberEvent bomberEvent = EventCodec.Instance.Deserialize<SpawnBomberEvent>(newEvent.Data);
IGameObject bomber = _objectFactory.MakeBomber(bomberEvent.StartPosition);
_objectContainer.Add(bomber);
}
void spawnMissile(EventPacket newEvent)
{
SpawnMissileEvent missileSpawn = EventCodec.Instance.Deserialize<SpawnMissileEvent>(newEvent.Data);
IGameObject missile = _objectFactory.MakeMissile(missileSpawn._startVector);
_objectContainer.Add(missile);
}
public void Receive(EventPacket newEvent)
{
eventQueue.Enqueue(newEvent);
}
//this is really just an isNullOrEmpty check on the observer list for this key
public bool HasObservers(EventPacket pendingEvent)
{
bool hasObserver = listenerTable[pendingEvent.Type] != null;
if(listenerTable[pendingEvent.Type] == null)
{
hasObserver = false;
}
else if (listenerTable[pendingEvent.Type].Count == 0)
{
hasObserver = false;
}
return hasObserver;
}
/// <summary>
/// For now, this parameterless version just assumes build a random start position
/// for the bomber. There isn't much randomness except the height.
/// </summary>
/// <param name="startPosition"></param>
/// <returns></returns>
public EventPacket MakeSpawnBomberEventPacket(Position startPosition)
{
SpawnBomberEvent bomberEvent = new SpawnBomberEvent(startPosition);
byte[] data = EventCodec.Instance.Serialize<SpawnBomberEvent>(bomberEvent);
EventPacket eventPacket = new EventPacket(EventTypes.SPAWN_BOMBER, data);
return eventPacket;
}
public EventPacket MakeSpawnMirvEventPacket(Particle startVector, double deployAltitude)
{
SpawnMirvEvent missileSpawn = new SpawnMirvEvent(startVector,deployAltitude);
byte[] eventData = EventCodec.Instance.Serialize<SpawnMirvEvent>(missileSpawn);
EventPacket eventPacket = new EventPacket(EventTypes.SPAWN_MIRV, eventData);
return eventPacket;
}
public EventPacket MakeTurretShotEventPacket(Position source, Position target)
{
SpawnTurretShotEvent turretShot = new SpawnTurretShotEvent(source, target);
byte[] eventData = EventCodec.Instance.Serialize<SpawnTurretShotEvent>(turretShot);
EventPacket eventPacket = new EventPacket(EventTypes.TURRET_SHOT, eventData);
return eventPacket;
}
/// <summary>
/// spawnExplosion() spawns an explosion at an exact location. This version spawns an
/// explosion at a random location very near to the position specific by event, for a nice
/// multi-explosion effect.
/// </summary>
/// <param name="newEvent"></param>
void spawnFuzzyAirBurst(EventPacket newEvent)
{
AirBurstEvent airBurstEvent = EventCodec.Instance.Deserialize<AirBurstEvent>(newEvent.Data);
Position fuzzyPosition = Position.GetFuzzyPosition(airBurstEvent.Position, GameParameters.MISSILE_DETONATION_FUZZ_FACTOR);
IGameObject explosion = _objectFactory.MakeAirBurst(fuzzyPosition, airBurstEvent.Intensity);
_objectContainer.Add(explosion);
}
/*
Notifies subscribers/observers of a dequeued event.
*/
public void Process(EventPacket pendingEvent)
{
if (listenerTable.Keys.Contains(pendingEvent.Type))
{
if (HasObservers(pendingEvent))
{
notifyObservers(pendingEvent);
}
else
{
GameLogger.Instance.Write("WARN event type has no observers: " + pendingEvent.Type.ToString());
}
}
else
{
GameLogger.Instance.Write("ERROR EventSystem.Process listener table key not found: "+pendingEvent.Type.ToString());
}
}
