```C#
GaiaConstants.FeatureType GetWeightedRandomFeatureType()
        {
            //Choose a random number
            float randomPick = UnityEngine.Random.Range(0f, 1f);

            //Work out the random number ranges
            float sumRanges = m_genChanceOfHills + m_genChanceOfIslands + m_genChanceOfLakes + m_genChanceOfMesas + m_genChanceOfMountains +
                m_genChanceOfPlains + m_genChanceOfRivers + m_genChanceOfValleys  + m_genChanceOfVillages + m_genChanceOfWaterfalls;

            //Stop divide by zero
            if (sumRanges == 0f)
            {
                sumRanges = 1f;
            }

            //Set our way through it - crude but effective
            float currStep = 0f;
            float nextStep = 0f;

            nextStep = currStep + (m_genChanceOfHills / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Hills;
            }

            currStep = nextStep;
            nextStep = currStep + (m_genChanceOfIslands / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Islands;
            }

            currStep = nextStep;
            nextStep = currStep + (m_genChanceOfLakes / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Lakes;
            }

            currStep = nextStep;
            nextStep = currStep + (m_genChanceOfMesas / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Mesas;
            }

            currStep = nextStep;
            nextStep = currStep + (m_genChanceOfMountains / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Mountains;
            }

            currStep = nextStep;
            nextStep = currStep + (m_genChanceOfPlains / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Plains;
            }

            currStep = nextStep;
            nextStep = currStep + (m_genChanceOfRivers / sumRanges);
            if (randomPick >= currStep && randomPick < nextStep)
            {
                return GaiaConstants.FeatureType.Rivers;
            }```