_position = getPosATL player;

_nearestLocations = nearestLocations[player, _radioactiveLocations, 300];
EPOCH_nearestLocations = _nearestLocations;
_powerSources = nearestObjects[player, ["Land_spp_Tower_F","Land_wpp_Turbine_V2_F","Land_wpp_Turbine_V1_F","SolarGen_EPOCH","Land_Wreck_Satellite_EPOCH"], _energyRange];

// TODO: add more sources and config based check instead of global var
_nearbyRadioactiveObjects = (_powerSources + _nearestLocations) select {_x getVariable ["EPOCH_Rads", 0] > 0};

// check if player is out of map bounds.
_radsLevel = 0;
_worldSize = worldSize/2;
_outOfBounds = !(player inArea [[_worldSize,_worldSize,0], _worldSize, _worldSize, 0, true ]);
if (_outOfBounds) then {
	// player is out of map bounds, give ten times background rads
	 ["You are out of the play area!", 5] call Epoch_message;
	 _radsLevel = _outOfBoundsRadiation;
} else {
	// radiated objects or locations nearby
	if !(_nearbyRadioactiveObjects isEqualTo []) then {
		// add extra rads based on intensity and distance from site.
		_radioActiveSite = _nearbyRadioactiveObjects select 0;
		_radsLevel = (_radioActiveSite getVariable ["EPOCH_Rads", 0]) / (player distance _radioActiveSite);
	};
};

if !(surfaceIsWater _position) then {
	if (_nearestLocations isEqualTo []) then{
		if (count(player nearEntities["Animal_Base_F", 800]) < 2) then {
			call EPOCH_client_loadAnimalBrain;
		};
	};
} else {
	// spawn shark if player is deep water and not in vehicle
	if !(_isOnFoot) then{
		_offsetZ = ((_position vectorDiff getPosASL player) select 2);
		if (_offsetZ > 50) then {
			["GreatWhite_F", player, true] call EPOCH_unitSpawn;
		};
	};
};

// default power state
_chargeRate = 0;

// energy Charge from nearby power plants
if !(_powerSources isEqualTo[]) then {
	_totalCapacity = 0;
	{
			_powerClass = typeOf _x;
			_powerCap = getNumber(_cfgBaseBuilding >> _powerClass >> "powerCapacity");
			_powerType = getNumber(_cfgBaseBuilding >> _powerClass >> "powerType");
			if (_powerCap == 0) then {
				_powerCap = 100;
			};
			if (_powerType == 1) then {
				if (sunOrMoon < 1) then {
					_powerCap = _powerCap/2;
				};
			};
			_totalCapacity = _totalCapacity + _powerCap;
	} forEach _powerSources;
	if (_totalCapacity > 0) then {
		_players = player nearEntities[["Epoch_Male_F", "Epoch_Female_F"], _energyRange];
		if (_players isEqualTo []) then {
			_chargeRate = ceil _totalCapacity;
		} else {
			_chargeRate = ceil (_totalCapacity / (count _players));
		};
	};
};

// alive time handler
_playerAliveTime = round(_playerAliveTime + (_tickTime - _clientAliveTimer));
missionNamespace setVariable [_playerAliveTimeKey, _playerAliveTime];
_clientAliveTimer = _tickTime;

// force update after 60 seconds
_forceUpdate = true;