static Being *findBeingNear(Actor *p, int id)
{
MapComposite *map = p->getMap();
const Point &ppos = p->getPosition();
// See map.h for tiles constants
const int pixelDist = DEFAULT_TILE_LENGTH * TILES_TO_BE_NEAR;
for (BeingIterator i(map->getAroundPointIterator(ppos, pixelDist)); i; ++i)
{
Being *b = *i;
if (b->getPublicID() != id)
continue;
return ppos.inRangeOf(b->getPosition(), pixelDist) ? b : 0;
}
return 0;
}
/**
* Informs a player of what happened around the character.
*/
static void informPlayer(MapComposite *map, Character *p)
{
MessageOut moveMsg(GPMSG_BEINGS_MOVE);
MessageOut damageMsg(GPMSG_BEINGS_DAMAGE);
const Point &pold = p->getOldPosition(), ppos = p->getPosition();
int pid = p->getPublicID(), pflags = p->getUpdateFlags();
int visualRange = Configuration::getValue("game_visualRange", 448);
// Inform client about activities of other beings near its character
for (BeingIterator it(map->getAroundBeingIterator(p, visualRange));
it; ++it)
{
Being *o = *it;
const Point &oold = o->getOldPosition(), opos = o->getPosition();
int otype = o->getType();
int oid = o->getPublicID(), oflags = o->getUpdateFlags();
int flags = 0;
// Check if the character p and the moving object o are around.
bool wereInRange = pold.inRangeOf(oold, visualRange) &&
!((pflags | oflags) & UPDATEFLAG_NEW_ON_MAP);
bool willBeInRange = ppos.inRangeOf(opos, visualRange);
if (!wereInRange && !willBeInRange)
{
// Nothing to report: o and p are far away from each other.
continue;
}
if (wereInRange && willBeInRange)
{
// Send attack messages.
if ((oflags & UPDATEFLAG_ATTACK) && oid != pid)
{
MessageOut AttackMsg(GPMSG_BEING_ATTACK);
AttackMsg.writeInt16(oid);
AttackMsg.writeInt8(o->getDirection());
AttackMsg.writeInt8(static_cast< Being * >(o)->getAttackId());
gameHandler->sendTo(p, AttackMsg);
}
// Send action change messages.
if ((oflags & UPDATEFLAG_ACTIONCHANGE))
{
MessageOut ActionMsg(GPMSG_BEING_ACTION_CHANGE);
ActionMsg.writeInt16(oid);
ActionMsg.writeInt8(static_cast< Being * >(o)->getAction());
gameHandler->sendTo(p, ActionMsg);
}
// Send looks change messages.
if (oflags & UPDATEFLAG_LOOKSCHANGE)
{
MessageOut LooksMsg(GPMSG_BEING_LOOKS_CHANGE);
LooksMsg.writeInt16(oid);
Character * c = static_cast<Character * >(o);
serializeLooks(c, LooksMsg);
LooksMsg.writeInt16(c->getHairStyle());
LooksMsg.writeInt16(c->getHairColor());
LooksMsg.writeInt16(c->getGender());
gameHandler->sendTo(p, LooksMsg);
}
// Send emote messages.
if (oflags & UPDATEFLAG_EMOTE)
{
int emoteId = o->getLastEmote();
if (emoteId > -1)
{
MessageOut EmoteMsg(GPMSG_BEING_EMOTE);
EmoteMsg.writeInt16(oid);
EmoteMsg.writeInt16(emoteId);
gameHandler->sendTo(p, EmoteMsg);
}
}
// Send direction change messages.
if (oflags & UPDATEFLAG_DIRCHANGE)
{
MessageOut DirMsg(GPMSG_BEING_DIR_CHANGE);
DirMsg.writeInt16(oid);
DirMsg.writeInt8(o->getDirection());
gameHandler->sendTo(p, DirMsg);
}
// Send damage messages.
if (o->canFight())
{
Being *victim = static_cast< Being * >(o);
const Hits &hits = victim->getHitsTaken();
for (Hits::const_iterator j = hits.begin(),
j_end = hits.end(); j != j_end; ++j)
{
damageMsg.writeInt16(oid);
damageMsg.writeInt16(*j);
}
}
if (oold == opos)
{
// o does not move, nothing more to report.
continue;
}
}
if (!willBeInRange)
{
// o is no longer visible from p. Send leave message.
MessageOut leaveMsg(GPMSG_BEING_LEAVE);
leaveMsg.writeInt16(oid);
gameHandler->sendTo(p, leaveMsg);
continue;
}
if (!wereInRange)
{
// o is now visible by p. Send enter message.
MessageOut enterMsg(GPMSG_BEING_ENTER);
enterMsg.writeInt8(otype);
enterMsg.writeInt16(oid);
enterMsg.writeInt8(static_cast< Being *>(o)->getAction());
enterMsg.writeInt16(opos.x);
enterMsg.writeInt16(opos.y);
enterMsg.writeInt8(o->getDirection());
enterMsg.writeInt8(o->getGender());
switch (otype)
{
case OBJECT_CHARACTER:
{
Character *q = static_cast< Character * >(o);
enterMsg.writeString(q->getName());
enterMsg.writeInt8(q->getHairStyle());
enterMsg.writeInt8(q->getHairColor());
serializeLooks(q, enterMsg);
} break;
case OBJECT_MONSTER:
{
Monster *q = static_cast< Monster * >(o);
enterMsg.writeInt16(q->getSpecy()->getId());
enterMsg.writeString(q->getName());
} break;
case OBJECT_NPC:
{
NpcComponent *npcComponent = o->getComponent<NpcComponent>();
enterMsg.writeInt16(npcComponent->getNpcId());
enterMsg.writeString(o->getName());
} break;
default:
assert(false); // TODO
break;
}
gameHandler->sendTo(p, enterMsg);
}
if (opos != oold)
{
// Add position check coords every 5 seconds.
if (currentTick % 50 == 0)
flags |= MOVING_POSITION;
flags |= MOVING_DESTINATION;
}
// Send move messages.
moveMsg.writeInt16(oid);
moveMsg.writeInt8(flags);
if (flags & MOVING_POSITION)
{
moveMsg.writeInt16(oold.x);
moveMsg.writeInt16(oold.y);
}
if (flags & MOVING_DESTINATION)
{
moveMsg.writeInt16(opos.x);
moveMsg.writeInt16(opos.y);
// We multiply the sent speed (in tiles per second) by ten
// to get it within a byte with decimal precision.
// For instance, a value of 4.5 will be sent as 45.
moveMsg.writeInt8((unsigned short)
(o->getModifiedAttribute(ATTR_MOVE_SPEED_TPS) * 10));
}
}
// Do not send a packet if nothing happened in p's range.
if (moveMsg.getLength() > 2)
gameHandler->sendTo(p, moveMsg);
if (damageMsg.getLength() > 2)
gameHandler->sendTo(p, damageMsg);
// Inform client about status change.
p->sendStatus();
// Inform client about health change of party members
for (CharacterIterator i(map->getWholeMapIterator()); i; ++i)
{
Character *c = *i;
// Make sure its not the same character
if (c == p)
continue;
// make sure they are in the same party
if (c->getParty() == p->getParty())
{
int cflags = c->getUpdateFlags();
if (cflags & UPDATEFLAG_HEALTHCHANGE)
{
MessageOut healthMsg(GPMSG_BEING_HEALTH_CHANGE);
healthMsg.writeInt16(c->getPublicID());
healthMsg.writeInt16(c->getModifiedAttribute(ATTR_HP));
healthMsg.writeInt16(c->getModifiedAttribute(ATTR_MAX_HP));
gameHandler->sendTo(p, healthMsg);
}
}
}
// Inform client about items on the ground around its character
MessageOut itemMsg(GPMSG_ITEMS);
for (FixedActorIterator it(map->getAroundBeingIterator(p, visualRange));
it; ++it)
{
Actor *o = *it;
assert(o->getType() == OBJECT_ITEM ||
o->getType() == OBJECT_EFFECT);
Point opos = o->getPosition();
int oflags = o->getUpdateFlags();
bool willBeInRange = ppos.inRangeOf(opos, visualRange);
bool wereInRange = pold.inRangeOf(opos, visualRange) &&
!((pflags | oflags) & UPDATEFLAG_NEW_ON_MAP);
if (willBeInRange ^ wereInRange)
{
switch (o->getType())
{
case OBJECT_ITEM:
{
ItemComponent *item = o->getComponent<ItemComponent>();
ItemClass *itemClass = item->getItemClass();
if (oflags & UPDATEFLAG_NEW_ON_MAP)
{
/* Send a specific message to the client when an item appears
out of nowhere, so that a sound/animation can be performed. */
MessageOut appearMsg(GPMSG_ITEM_APPEAR);
appearMsg.writeInt16(itemClass->getDatabaseID());
appearMsg.writeInt16(opos.x);
appearMsg.writeInt16(opos.y);
gameHandler->sendTo(p, appearMsg);
}
else
{
itemMsg.writeInt16(willBeInRange ? itemClass->getDatabaseID() : 0);
itemMsg.writeInt16(opos.x);
itemMsg.writeInt16(opos.y);
}
}
break;
case OBJECT_EFFECT:
{
EffectComponent *e = o->getComponent<EffectComponent>();
e->setShown();
// Don't show old effects
if (!(oflags & UPDATEFLAG_NEW_ON_MAP))
break;
if (Being *b = e->getBeing())
{
MessageOut effectMsg(GPMSG_CREATE_EFFECT_BEING);
effectMsg.writeInt16(e->getEffectId());
effectMsg.writeInt16(b->getPublicID());
gameHandler->sendTo(p, effectMsg);
} else {
MessageOut effectMsg(GPMSG_CREATE_EFFECT_POS);
effectMsg.writeInt16(e->getEffectId());
effectMsg.writeInt16(opos.x);
effectMsg.writeInt16(opos.y);
gameHandler->sendTo(p, effectMsg);
}
}
break;
default: break;
} // Switch
}
}
// Do not send a packet if nothing happened in p's range.
if (itemMsg.getLength() > 2)
gameHandler->sendTo(p, itemMsg);
}