mirror of
https://github.com/TrinityCore/TrinityCore.git
synced 2026-01-15 23:19:53 +01:00
9894f6b802
* They were all cast to float at use anyway * Improves roll_chance_f performance (rand32() is now called internally by uniform_real_distribution once instead of twice)
322 lines
9.3 KiB
C++
322 lines
9.3 KiB
C++
/*
|
|
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** \file
|
|
\ingroup world
|
|
*/
|
|
|
|
#include "GameTime.h"
|
|
#include "Weather.h"
|
|
#include "Log.h"
|
|
#include "MiscPackets.h"
|
|
#include "Player.h"
|
|
#include "Random.h"
|
|
#include "ScriptMgr.h"
|
|
#include "Util.h"
|
|
#include "World.h"
|
|
|
|
/// Create the Weather object
|
|
Weather::Weather(uint32 zoneId, WeatherData const* weatherChances)
|
|
: m_zone(zoneId), m_weatherChances(weatherChances)
|
|
{
|
|
m_timer.SetInterval(sWorld->getIntConfig(CONFIG_INTERVAL_CHANGEWEATHER));
|
|
m_type = WEATHER_TYPE_FINE;
|
|
m_intensity = 0;
|
|
|
|
TC_LOG_INFO("misc", "WORLD: Starting weather system for zone {} (change every {} minutes).", m_zone, (uint32)(m_timer.GetInterval() / (MINUTE*IN_MILLISECONDS)));
|
|
}
|
|
|
|
/// Launch a weather update
|
|
bool Weather::Update(uint32 diff)
|
|
{
|
|
if (m_timer.GetCurrent() >= 0)
|
|
m_timer.Update(diff);
|
|
else
|
|
m_timer.SetCurrent(0);
|
|
|
|
///- If the timer has passed, ReGenerate the weather
|
|
if (m_timer.Passed())
|
|
{
|
|
m_timer.Reset();
|
|
// update only if Regenerate has changed the weather
|
|
if (ReGenerate())
|
|
{
|
|
///- Weather will be removed if not updated (no players in zone anymore)
|
|
if (!UpdateWeather())
|
|
return false;
|
|
}
|
|
}
|
|
|
|
sScriptMgr->OnWeatherUpdate(this, diff);
|
|
return true;
|
|
}
|
|
|
|
/// Calculate the new weather
|
|
bool Weather::ReGenerate()
|
|
{
|
|
if (!m_weatherChances)
|
|
{
|
|
m_type = WEATHER_TYPE_FINE;
|
|
m_intensity = 0.0f;
|
|
return false;
|
|
}
|
|
|
|
/// 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;
|
|
|
|
// remember old values
|
|
WeatherType old_type = m_type;
|
|
float old_intensity = m_intensity;
|
|
|
|
//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 = GameTime::GetGameTime();
|
|
struct tm ltime;
|
|
localtime_r(>ime, <ime);
|
|
uint32 season = ((ltime.tm_yday - 78 + 365) / 91) % 4;
|
|
|
|
static char const* seasonName[WEATHER_SEASONS] = { "spring", "summer", "fall", "winter" };
|
|
|
|
TC_LOG_INFO("misc", "Generating a change in {} weather for zone {}.", seasonName[season], m_zone);
|
|
|
|
if ((u < 60) && (m_intensity < 0.33333334f)) // Get fair
|
|
{
|
|
m_type = WEATHER_TYPE_FINE;
|
|
m_intensity = 0.0f;
|
|
}
|
|
|
|
if ((u < 60) && (m_type != WEATHER_TYPE_FINE)) // Get better
|
|
{
|
|
m_intensity -= 0.33333334f;
|
|
return true;
|
|
}
|
|
|
|
if ((u < 90) && (m_type != WEATHER_TYPE_FINE)) // Get worse
|
|
{
|
|
m_intensity += 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_intensity < 0.33333334f)
|
|
{
|
|
m_intensity = 0.9999f; // go nuts
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
if (m_intensity > 0.6666667f)
|
|
{
|
|
// Severe change, but how severe?
|
|
uint32 rnd = urand(0, 99);
|
|
if (rnd < 50)
|
|
{
|
|
m_intensity -= 0.6666667f;
|
|
return true;
|
|
}
|
|
}
|
|
m_type = WEATHER_TYPE_FINE; // clear up
|
|
m_intensity = 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_intensity = 0.0f;
|
|
}
|
|
else if (u < 90)
|
|
{
|
|
m_intensity = rand_norm() * 0.3333f;
|
|
}
|
|
else
|
|
{
|
|
// Severe change, but how severe?
|
|
rnd = urand(0, 99);
|
|
if (rnd < 50)
|
|
m_intensity = rand_norm() * 0.3333f + 0.3334f;
|
|
else
|
|
m_intensity = rand_norm() * 0.3333f + 0.6667f;
|
|
}
|
|
|
|
// return true only in case weather changes
|
|
return m_type != old_type || m_intensity != old_intensity;
|
|
}
|
|
|
|
void Weather::SendWeatherUpdateToPlayer(Player* player)
|
|
{
|
|
WorldPackets::Misc::Weather weather(GetWeatherState(), m_intensity);
|
|
player->SendDirectMessage(weather.Write());
|
|
}
|
|
|
|
void Weather::SendFineWeatherUpdateToPlayer(Player* player)
|
|
{
|
|
WorldPackets::Misc::Weather weather(WEATHER_STATE_FINE);
|
|
player->SendDirectMessage(weather.Write());
|
|
}
|
|
|
|
/// Send the new weather to all players in the zone
|
|
bool Weather::UpdateWeather()
|
|
{
|
|
///- Send the weather packet to all players in this zone
|
|
if (m_intensity >= 1)
|
|
m_intensity = 0.9999f;
|
|
else if (m_intensity < 0)
|
|
m_intensity = 0.0001f;
|
|
|
|
WeatherState state = GetWeatherState();
|
|
|
|
WorldPackets::Misc::Weather weather(state, m_intensity);
|
|
|
|
//- Returns false if there were no players found to update
|
|
if (!sWorld->SendZoneMessage(m_zone, weather.Write()))
|
|
return false;
|
|
|
|
///- Log the event
|
|
char const* wthstr;
|
|
switch (state)
|
|
{
|
|
case WEATHER_STATE_FOG:
|
|
wthstr = "fog";
|
|
break;
|
|
case WEATHER_STATE_LIGHT_RAIN:
|
|
wthstr = "light rain";
|
|
break;
|
|
case WEATHER_STATE_MEDIUM_RAIN:
|
|
wthstr = "medium rain";
|
|
break;
|
|
case WEATHER_STATE_HEAVY_RAIN:
|
|
wthstr = "heavy rain";
|
|
break;
|
|
case WEATHER_STATE_LIGHT_SNOW:
|
|
wthstr = "light snow";
|
|
break;
|
|
case WEATHER_STATE_MEDIUM_SNOW:
|
|
wthstr = "medium snow";
|
|
break;
|
|
case WEATHER_STATE_HEAVY_SNOW:
|
|
wthstr = "heavy snow";
|
|
break;
|
|
case WEATHER_STATE_LIGHT_SANDSTORM:
|
|
wthstr = "light sandstorm";
|
|
break;
|
|
case WEATHER_STATE_MEDIUM_SANDSTORM:
|
|
wthstr = "medium sandstorm";
|
|
break;
|
|
case WEATHER_STATE_HEAVY_SANDSTORM:
|
|
wthstr = "heavy sandstorm";
|
|
break;
|
|
case WEATHER_STATE_THUNDERS:
|
|
wthstr = "thunders";
|
|
break;
|
|
case WEATHER_STATE_BLACKRAIN:
|
|
wthstr = "blackrain";
|
|
break;
|
|
case WEATHER_STATE_FINE:
|
|
default:
|
|
wthstr = "fine";
|
|
break;
|
|
}
|
|
|
|
TC_LOG_INFO("misc", "Change the weather of zone {} to {}.", m_zone, wthstr);
|
|
sScriptMgr->OnWeatherChange(this, state, m_intensity);
|
|
return true;
|
|
}
|
|
|
|
/// Set the weather
|
|
void Weather::SetWeather(WeatherType type, float intensity)
|
|
{
|
|
if (m_type == type && m_intensity == intensity)
|
|
return;
|
|
|
|
m_type = type;
|
|
m_intensity = intensity;
|
|
UpdateWeather();
|
|
}
|
|
|
|
/// Get the sound number associated with the current weather
|
|
WeatherState Weather::GetWeatherState() const
|
|
{
|
|
if (m_intensity < 0.27f)
|
|
return WEATHER_STATE_FINE;
|
|
|
|
switch (m_type)
|
|
{
|
|
case WEATHER_TYPE_RAIN:
|
|
if (m_intensity < 0.40f)
|
|
return WEATHER_STATE_LIGHT_RAIN;
|
|
else if (m_intensity < 0.70f)
|
|
return WEATHER_STATE_MEDIUM_RAIN;
|
|
else
|
|
return WEATHER_STATE_HEAVY_RAIN;
|
|
case WEATHER_TYPE_SNOW:
|
|
if (m_intensity < 0.40f)
|
|
return WEATHER_STATE_LIGHT_SNOW;
|
|
else if (m_intensity < 0.70f)
|
|
return WEATHER_STATE_MEDIUM_SNOW;
|
|
else
|
|
return WEATHER_STATE_HEAVY_SNOW;
|
|
case WEATHER_TYPE_STORM:
|
|
if (m_intensity < 0.40f)
|
|
return WEATHER_STATE_LIGHT_SANDSTORM;
|
|
else if (m_intensity < 0.70f)
|
|
return WEATHER_STATE_MEDIUM_SANDSTORM;
|
|
else
|
|
return WEATHER_STATE_HEAVY_SANDSTORM;
|
|
case WEATHER_TYPE_BLACKRAIN:
|
|
return WEATHER_STATE_BLACKRAIN;
|
|
case WEATHER_TYPE_THUNDERS:
|
|
return WEATHER_STATE_THUNDERS;
|
|
case WEATHER_TYPE_FINE:
|
|
default:
|
|
return WEATHER_STATE_FINE;
|
|
}
|
|
}
|