void CDplusProtocol::HandleKeepalives(void)
{
// send keepalives
CBuffer keepalive;
EncodeKeepAlivePacket(&keepalive);
// iterate on clients
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DPLUS, &index)) != NULL )
{
// send keepalive
//std::cout << "Sending DPlus packet @ " << client->GetIp() << std::endl;
m_Socket.Send(keepalive, client->GetIp());
// is this client busy ?
if ( client->IsAMaster() )
{
// yes, just tickle it
client->Alive();
}
// check it's still with us
else if ( !client->IsAlive() )
{
// no, disconnect
CBuffer disconnect;
EncodeDisconnectPacket(&disconnect);
m_Socket.Send(disconnect, client->GetIp());
// and remove it
std::cout << "DPlus client " << client->GetCallsign() << " keepalive timeout" << std::endl;
clients->RemoveClient(client);
}
}
g_Reflector.ReleaseClients();
}
bool CBaseBot::FindEnemy()
{
// check if the health is decreased
bool fHealthDecreased = m_iPrevHealth > GetHealth();
m_iPrevHealth = GetHealth(); // store away the current health value
float cur_dist;
if (m_pEnemy && (!m_pEnemy->IsValid() || !m_pEnemy->IsAlive()))
m_pEnemy = NULL; // null out the enemy pointer as it's no longer valid
Vector vecHisPos;
unsigned char cHit;
// see if we can still see the current enemy...
if (m_pEnemy) {
if (FBoxVisible(m_pEnemy, &vecHisPos, &cHit)) {
m_vecEnemy = vecHisPos;
m_ucVisibility = cHit;
} else {
m_pEnemy = NULL; // we can no longer see this enemy
}
}
// if we already have an enemy...
if (m_pEnemy) {
// don't discard important enemies (bomb/flag/hostage carrier, VIP, etc)
if (g_pServer->ClientIsImportant(EnemyClient()))
return false;
// calculate the distance to the enemy
cur_dist = (m_pEnemy->GetOrigin() - GetOrigin()).Length();
} else {
cur_dist = FLT_MAX; // just some crazy value
}
// loop through all the clients...
for (int i = 0; i < g_pServer->GetMaxClients(); i++) {
if (i == entindex() - 1 || (m_pEnemy && i == m_pEnemy->entindex() - 1))
continue; // skip myself and the current enemy
CClient *pClient = g_pServer->m_rgpClients[i];
if (!pClient || !pClient->IsValid() || !pClient->IsAlive())
continue;
float dist = (pClient->GetOrigin() - GetOrigin()).Length();
// if this enemy is further away than the current one...
if (dist > cur_dist && !g_pServer->ClientIsImportant(pClient))
continue; // skip it
if (dist > 900 + 4000 * ((GetDifficulty() - 1) / 4.0))
continue; // enemy is too far
if (g_pServer->IsTeamplay() && GetTeam() == g_pServer->GetTeam(pClient))
continue; // skip our teammates
float fov;
// if the bot's health decreased or the enemy is shooting
if (!m_pEnemy && (fHealthDecreased || pClient->IsShooting()))
fov = 360;
else
fov = GetFov() * 2 - (GetFov() - (dist > GetFov() * 9 ? GetFov() * 9 : dist) / 9);
// check if enemy is in the view cone
if (!FInViewCone(pClient, fov))
continue; // enemy isn't in bot's view cone
// check if enemy is visible
if (!FBoxVisible(pClient, &vecHisPos, &cHit)) {
continue; // skip this enemy
}
// if the enemy is quite far away, not shooting and the bot is not damaged
if (!m_pEnemy && dist > 200 && !fHealthDecreased && !pClient->IsShooting()) {
// if the bot isn't in the fov of the enemy and the bot doesn't really want to fight
if (!pClient->FInViewCone(this, 120) /*&& BotWantsToRetreat()*/)
continue; // skip this enemy
}
m_pEnemy = pClient; // found a new enemy
m_vecEnemy = vecHisPos;
m_ucVisibility = cHit;
DebugMsg(DEBUG_BOTCOMBAT, "Found new enemy: %s", m_pEnemy->GetNetName());
return true;
}
return false; // no new enemy is found
}