ACE3/addons/weather/functions/fnc_updateAceWeather.sqf
ulteq 903fb89d77 Overcast > 0.7 no longer implies rain:
* The higher the overcast value the higher the chance for rain
* But you can end up having no rain with an overcast value of 1.0
2015-05-31 17:30:52 +02:00

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/*
* Author: ACE2 Team, esteldunedain, ruthberg
*
* Updates the wind and rain evolution on the server. Broadcasts the current and next values to the clients
*
* Argument:
* None
*
* Return value:
* None
*/
#include "script_component.hpp"
private ["_overcastMultiplier", "_lastRain", "_rainOverCast", "_transitionTime", "_windDirectionVariance", "_windSpeed", "_windSpeedChange", "_windMaxDiff", "_windMinDiff", "_windDirection", "_windDirectionChange", "_ratioMin", "_ratioMax"];
_overcastMultiplier = 1 max (2* overcast) min 2; // 0 (@ overcast 0), 2 (@ overcast 1)
// Rain simulation
if (GVAR(syncRain) && GVAR(rain_period_count) > GVAR(rain_next_period)) then {
GVAR(rain_next_period) = ceil((1 + (random 10)) / _overcastMultiplier);
GVAR(rain_period_count) = 0;
_lastRain = GVAR(current_rain);
if (overcast >= 0.7) then {
_rainOverCast = (overcast - 0.7) / 0.3;
if (GVAR(current_rain) == 0) then {
// Initialize rain with a random strength depending on the current overcast value
GVAR(current_rain) = -0.25 + (random 0.75) + (random 0.5) * _rainOverCast;
};
GVAR(current_rain) = GVAR(current_rain) + GVAR(current_rain) * ((_rainOverCast * _overcastMultiplier) / 8) * GVAR(rain_current_range);
GVAR(current_rain) = 0 max GVAR(current_rain) min 1;
GVAR(rain_current_range) = -1 + (random 2);
} else {
_rainOverCast = 1;
GVAR(current_rain) = 0;
};
_transitionTime = 1 + (_rainOverCast * 5) + (random (_rainOverCast * 20));
ACE_RAIN_PARAMS = [_lastRain, GVAR(current_rain), _transitionTime];
TRACE_4("",_lastRain,_rainOverCast,_transitionTime,overcast);
GVAR(rain_period_start_time) = ACE_time;
publicVariable "ACE_RAIN_PARAMS";
};
// Wind simulation
if (GVAR(syncWind) && GVAR(wind_period_count) > GVAR(wind_next_period)) then {
GVAR(wind_next_period) = ceil((2 + (random 5)) / _overcastMultiplier);
GVAR(wind_period_count) = 0;
_windDirectionVariance = (90 - (random 180)) * (overcast ^ 2);
_windDirection = (360 + GVAR(wind_direction_reference) + _windDirectionVariance) % 360;
_windDirectionChange = _windDirection - GVAR(current_wind_direction);
if (_windDirectionChange > 180) then {
_windDirectionChange = _windDirectionChange - 360;
};
if (_windDirectionChange < -180) then {
_windDirectionChange = 360 + _windDirectionChange;
};
_windMaxDiff = GVAR(mean_wind_speed) - GVAR(max_wind_speed);
_windMinDiff = GVAR(min_wind_speed) - GVAR(mean_wind_speed);
_ratioMax = (random 1) ^ 2;
_ratioMin = (random 1) ^ 2;
_windSpeed = GVAR(current_wind_speed);
_windSpeedChange = 0;
if ((random 1) < (0.3 max overcast)) then {
_windSpeed = GVAR(mean_wind_speed) + _windMaxDiff * _ratioMax + _windMinDiff * _ratioMin;
_windSpeedChange = _windSpeed - GVAR(current_wind_speed);
};
_transitionTime = GVAR(wind_next_period) * GVAR(serverUpdateInterval);
TRACE_5("dirCur/dirNew/spdCur/spdNew/period",GVAR(current_wind_direction),_windDirection,GVAR(current_wind_speed),_windSpeed,_transitionTime);
ACE_WIND_PARAMS = [GVAR(current_wind_direction),
_windDirectionChange,
GVAR(current_wind_speed),
_windSpeedChange,
_transitionTime];
GVAR(current_wind_direction) = _windDirection;
GVAR(current_wind_speed) = _windSpeed;
GVAR(wind_period_start_time) = ACE_time;
publicVariable "ACE_WIND_PARAMS";
};
if (GVAR(syncMisc)) then {
ACE_MISC_PARAMS = [lightnings, rainbow, fogParams, GVAR(temperatureShift), GVAR(badWeatherShift), GVAR(humidityShift)];
publicVariable "ACE_MISC_PARAMS";
};
GVAR(rain_period_count) = GVAR(rain_period_count) + 1;
GVAR(wind_period_count) = GVAR(wind_period_count) + 1;