INT8 GetSightAdjustmentStealthAtLightLevel( SOLDIERTYPE* pSoldier, const UINT8& ubLightLevel )
{
	if (gGameExternalOptions.ubStealthEffectiveness == 0) {
		return 0;
	}

	// set scaler to scale with light level (dark = 100%)
	UINT8 ubScaler = GetBrightness( ubLightLevel );

	// last term corresponds to the maximum of ubScaler before
	ubScaler *= gGameExternalOptions.ubStealthEffectiveness / 100;

	INT8 ibStealthInPercent = GetStealth( pSoldier );

	return MINMAX100N( - ibStealthInPercent * ubScaler / 100);
}