/// <summary>
/// Plays sound in range of source.
/// </summary>
/// <param name="file">e.g. "data/sound/Glasgavelen_blowaway_endure.wav"</param>
public static void PlaySound(string file, MabiEntity source)
{
var packet = new MabiPacket(Op.PlaySound, source.Id);
packet.PutString(file);
WorldManager.Instance.Broadcast(packet, SendTargets.Range, source);
}
/// <summary>
/// Broadcasts Effect packet in range. Parameters can be added,
/// but you have to watch the types.
/// </summary>
public static void Effect(uint effect, MabiEntity source, params object[] args)
{
var packet = new MabiPacket(Op.Effect, source.Id);
packet.PutInt(effect);
foreach (var arg in args)
{
if (!(arg is bool))
packet.Put(arg);
else
packet.PutByte((bool)arg);
}
WorldManager.Instance.Broadcast(packet, SendTargets.Range, source);
}
private static void AddPublicEntityInfo(this MabiPacket packet, MabiEntity entity)
{
if (entity is MabiCreature) packet.AddCreatureInfo(entity as MabiCreature, CreaturePacketType.Public);
else if (entity is MabiItem) packet.AddItemInfo(entity as MabiItem, ItemPacketType.Public);
else if (entity is MabiProp) packet.AddPropInfo(entity as MabiProp);
else throw new Exception("Unknown entity class '" + entity.GetType() + "'");
}
/// <summary>
/// Calculates and sets new position for creature, and returns a copy
/// of the current coordinates, for later use.
/// </summary>
/// <param name="target">Creature to knock back</param>
/// <param name="attacker">Creature that attacked</param>
/// <param name="distance">Knock back distance</param>
/// <returns>Position of creature, before the knock back</returns>
public static MabiVertex KnockBack(MabiCreature target, MabiEntity attacker, int distance = 375)
{
var oldPos = target.GetPosition();
var pos = WorldManager.CalculatePosOnLine(attacker, target, distance);
// Check for collision, set new pos 200 points before the
// intersection, to prevent glitching through.
MabiVertex intersection;
if (WorldManager.Instance.FindCollision(attacker.Region, oldPos, pos, out intersection))
pos = WorldManager.CalculatePosOnLine(oldPos, intersection, -200);
target.SetPosition(pos.X, pos.Y);
return oldPos;
}
private static MabiPacket GetEntityDisappears(MabiEntity entity)
{
uint op = Op.EntityDisappears;
if (entity is MabiItem)
op = Op.ItemDisappears;
var packet = new MabiPacket(op, Id.Broadcast);
packet.PutLong(entity.Id);
packet.PutByte(0);
return packet;
}
/// <summary>
/// Checks distance between the entity and the coordinates, does not check region.
/// </summary>
public static bool InRange(MabiEntity entity, uint x, uint y, uint range = 0)
{
var pos = entity.GetPosition();
return InRange(pos.X, pos.Y, x, y, range);
}
public static MabiPacket SpawnEffect(MabiEntity entity, SpawnEffect type, MabiVertex pos)
{
return
new MabiPacket(Op.Effect, entity.Id)
.PutInt(Effect.Spawn)
.PutInt(entity.Region)
.PutFloats(pos.X, pos.Y)
.PutByte((byte)type);
}
protected IEnumerable Circle(MabiEntity center, bool clockwise, int radius, bool wait)
{
var centerPos = center.GetPosition();
var myPos = this.Creature.GetPosition();
var deltaX = (double)myPos.X - (double)centerPos.X;
var deltaY = (double)myPos.Y - (double)centerPos.Y;
var angle = Math.Atan2(deltaY, deltaX);
angle += (clockwise ? -1 : 1) * rnd.NextDouble() * (Math.PI / 6);
var x = (int)(Math.Cos(angle) * radius);
var y = (int)(Math.Sin(angle) * radius);
var dest = new MabiVertex(centerPos.X + x, centerPos.Y + y);
foreach (var a in WalkTo(dest, wait))
yield return a;
}
public static List<MabiMail> FindAllSent(MabiEntity e)
{
return FindAllSent(e.Id);
}
public static void OnEntityLeavesRegion(MabiEntity entity)
{
if (EntityLeavesRegion != null)
EntityLeavesRegion(entity);
}
/// <summary>
/// Calculates a position on the line between source and target.
/// e.g. distance 0 would be the position of target, 100 would be
/// 100 points farther away from source.
/// </summary>
public static MabiVertex CalculatePosOnLine(MabiEntity source, MabiEntity target, int distance)
{
return CalculatePosOnLine(source.GetPosition(), target.GetPosition(), distance);
}
public List<MabiCreature> GetPlayersInRange(MabiEntity entity, uint range = 0)
{
if (range < 1)
range = WorldConf.SightRange;
lock (_creatures)
return _creatures.FindAll(a => a != entity && a.IsPlayer && a.Region == entity.Region && InRange(a, entity, range));
}
public List<MabiEntity> GetEntitiesInRange(MabiEntity entity, uint range = 0)
{
var pos = entity.GetPosition();
return this.GetEntitiesInRange(entity.Region, pos.X, pos.Y, range);
}
public List<MabiCreature> GetAttackableCreaturesInRange(MabiEntity entity, uint range = 0)
{
if (range < 1)
range = WorldConf.SightRange;
lock (_creatures)
return _creatures.FindAll(a => a != entity && a is MabiNPC && !(a as MabiNPC).Has(CreatureStates.GoodNpc) && !a.IsDead && a.Region == entity.Region && InRange(a, entity, range));
}
/// <summary>
/// Sends packet to all clients that match the parameters.
/// </summary>
/// <param name="packet"></param>
/// <param name="targets"></param>
/// <param name="source"></param>
/// <param name="range"></param>
public void Broadcast(MabiPacket packet, SendTargets targets, MabiEntity source = null, uint range = 0)
{
if (range < 1)
range = WorldConf.SightRange;
var excludeSender = ((targets & SendTargets.ExcludeSender) != 0);
WorldClient sourceClient = null;
if (source != null && source is MabiCreature)
sourceClient = (source as MabiCreature).Client as WorldClient;
lock (_clients)
{
if ((targets & SendTargets.All) != 0)
{
foreach (var client in _clients)
{
if (!(excludeSender && client == sourceClient))
client.Send(packet);
}
}
else if ((targets & SendTargets.Region) != 0)
{
var region = source.Region;
foreach (var client in _clients)
{
if (!(excludeSender && client == sourceClient))
if (region == client.Character.Region)
client.Send(packet);
}
}
else if ((targets & SendTargets.Range) != 0)
{
var region = source.Region;
foreach (var client in _clients)
{
if (!(excludeSender && client == sourceClient))
if (region == client.Character.Region && InRange(client.Character, source, range))
client.Send(packet);
}
}
}
}
/// <summary>
/// Broadcasts appear to everybody in range, except for entity itself.
/// </summary>
/// <param name="entity"></param>
public static void EntityAppearsOthers(MabiEntity entity)
{
WorldManager.Instance.Broadcast(GetEntityAppears(entity), SendTargets.Range | SendTargets.ExcludeSender, entity);
}
public static List<MabiMail> FindAllRecieved(MabiEntity e)
{
return FindAllRecieved(e.Id);
}
/// <summary>
/// Broadcasts disappear in range of entity.
/// </summary>
/// <param name="entity"></param>
public static void EntityDisappears(MabiEntity entity)
{
WorldManager.Instance.Broadcast(GetEntityDisappears(entity), SendTargets.Range, entity);
}
public static int GetUnreadCount(MabiEntity e)
{
return GetUnreadCount(e.Id);
}
/// <summary>
/// Sends dispappear to client.
/// </summary>
/// <param name="client"></param>
/// <param name="entity"></param>
public static void EntityDisappears(Client client, MabiEntity entity)
{
client.Send(GetEntityDisappears(entity));
}
public static MabiPacket SpawnEffect(MabiEntity entity, SpawnEffect type)
{
return SpawnEffect(entity, type, entity.GetPosition());
}
private static MabiPacket GetEntityAppears(MabiEntity entity)
{
var op = Op.EntityAppears;
if (entity.EntityType == EntityType.Item)
op = Op.ItemAppears;
else if (entity.EntityType == EntityType.Prop)
op = Op.PropAppears;
var packet = new MabiPacket(op, Id.Broadcast);
packet.AddPublicEntityInfo(entity);
//entity.AddToPacket(packet);
return packet;
}
/// <summary>
/// Lets the creature face the target.
/// </summary>
/// <param name="creature"></param>
/// <param name="target"></param>
/// <returns></returns>
public static MabiPacket TurnTo(MabiEntity creature, MabiEntity target)
{
var cpos = creature.GetPosition();
var tpos = target.GetPosition();
var p = new MabiPacket(Op.TurnTo, creature.Id);
p.PutFloat((float)tpos.X - (float)cpos.X);
p.PutFloat((float)tpos.Y - (float)cpos.Y);
return p;
}
// Range and position calculations
// ==================================================================
/// <summary>
/// Checks distance between the two entities, does not check region.
/// </summary>
public static bool InRange(MabiEntity c1, MabiEntity c2, uint range = 0)
{
return InRange(c1.GetPosition(), c2.GetPosition(), range);
}