void Weather::SendWeatherUpdateToPlayer(Player* player)
{
NormalizeGrade();
WorldPacket data(SMSG_WEATHER, 4 + 4 + 1);
data << uint32(GetWeatherState());
data << float(m_grade);
data << uint8(0); // 1 = instant change, 0 = smooth change
player->GetSession()->SendPacket(&data);
}
// Send the new weather to all players in the zone
bool Weather::SendWeatherForPlayersInZone(Map const* _map)
{
NormalizeGrade();
WorldPacket data(SMSG_WEATHER, 4 + 4 + 4 + 1);
data << uint32(m_type);
data << float(m_grade);
data << uint32(GetSound()); // 1.12 soundid
data << uint8(0); // 1 = instant change, 0 = smooth change
///- Send the weather packet to all players in this zone
if (!_map->SendToPlayersInZone(data, m_zone))
return false;
///- Log the event
LogWeatherState(GetWeatherState());
return true;
}
// Send the new weather to all players in the zone
bool Weather::SendWeatherForPlayersInZone(Map const* _map)
{
NormalizeGrade();
WeatherState state = GetWeatherState();
WorldPacket data(SMSG_WEATHER, 4 + 4 + 1);
data << uint32(state);
data << float(m_grade);
data << uint8(0); // 1 = instant change, 0 = smooth change
///- Send the weather packet to all players in this zone
if (!_map->SendToPlayersInZone(&data, m_zone))
return false;
///- Log the event
LogWeatherState(state);
sEluna->OnChange(this, m_zone, state, m_grade);
return true;
}
/// Calculate the new weather, returns true if and only if the weather changed
bool Weather::ReGenerate()
{
if (m_isPermanentWeather)
return false;
// remember old values
WeatherType old_type = m_type;
float old_grade = m_grade;
if (!m_weatherChances)
{
m_type = WEATHER_TYPE_FINE;
m_grade = 0.0f;
// No chanced calculation for this zone
return old_type != m_type || old_grade != m_grade;
}
/// Weather statistics:
///- 30% - no change
///- 30% - weather gets better (if not fine) or change weather type
///- 30% - weather worsens (if not fine)
///- 10% - radical change (if not fine)
uint32 u = urand(0, 99);
if (u < 30)
return false;
// 78 days between January 1st and March 20nd; 365/4=91 days by season
// season source http://aa.usno.navy.mil/data/docs/EarthSeasons.html
time_t gtime = sWorld.GetGameTime();
struct tm* ltime = localtime(>ime);
uint32 season = ((ltime->tm_yday - 78 + 365) / 91) % 4;
static char const* seasonName[WEATHER_SEASONS] = { "spring", "summer", "fall", "winter" };
DEBUG_FILTER_LOG(LOG_FILTER_WEATHER, "Generating a change in %s weather for zone %u.", seasonName[season], m_zone);
if ((u < 60) && (m_grade < 0.33333334f)) // Get fair
{
m_type = WEATHER_TYPE_FINE;
m_grade = 0.0f;
}
if ((u < 60) && (m_type != WEATHER_TYPE_FINE)) // Get better
{
m_grade -= 0.33333334f;
return true;
}
if ((u < 90) && (m_type != WEATHER_TYPE_FINE)) // Get worse
{
m_grade += 0.33333334f;
return true;
}
if (m_type != WEATHER_TYPE_FINE)
{
/// Radical change:
///- if light -> heavy
///- if medium -> change weather type
///- if heavy -> 50% light, 50% change weather type
if (m_grade < 0.33333334f)
{
m_grade = 0.9999f; // go nuts
return true;
}
else
{
if (m_grade > 0.6666667f)
{
// Severe change, but how severe?
uint32 rnd = urand(0, 99);
if (rnd < 50)
{
m_grade -= 0.6666667f;
return true;
}
}
m_type = WEATHER_TYPE_FINE; // clear up
m_grade = 0;
}
}
// At this point, only weather that isn't doing anything remains but that have weather data
uint32 chance1 = m_weatherChances->data[season].rainChance;
uint32 chance2 = chance1 + m_weatherChances->data[season].snowChance;
uint32 chance3 = chance2 + m_weatherChances->data[season].stormChance;
uint32 rnd = urand(1, 100);
if (rnd <= chance1)
m_type = WEATHER_TYPE_RAIN;
else if (rnd <= chance2)
m_type = WEATHER_TYPE_SNOW;
else if (rnd <= chance3)
m_type = WEATHER_TYPE_STORM;
else
m_type = WEATHER_TYPE_FINE;
/// New weather statistics (if not fine):
///- 85% light
///- 7% medium
///- 7% heavy
/// If fine 100% sun (no fog)
if (m_type == WEATHER_TYPE_FINE)
{
m_grade = 0.0f;
}
else if (u < 90)
{
m_grade = rand_norm_f() * 0.3333f;
}
else
{
// Severe change, but how severe?
rnd = urand(0, 99);
if (rnd < 50)
m_grade = rand_norm_f() * 0.3333f + 0.3334f;
else
m_grade = rand_norm_f() * 0.3333f + 0.6667f;
}
NormalizeGrade();
// return true only in case weather changes
return m_type != old_type || m_grade != old_grade;
}
