Terraria.HitTile.AddDamage C# (CSharp) Method

        public int AddDamage(int tileId, int damageAmount, bool updateAmount = true)
        {
            if (tileId < 0 || tileId > 20 || tileId == this.bufferLocation && damageAmount == 0)
                return 0;
            HitTile.HitTileObject hitTileObject = this.data[tileId];
            if (!updateAmount)
                return hitTileObject.damage + damageAmount;
            hitTileObject.damage += damageAmount;
            hitTileObject.timeToLive = 60;
            if (tileId == this.bufferLocation)
            {
                this.bufferLocation = this.order[20];
                this.data[this.bufferLocation].Clear();
                for (int index = 20; index > 0; --index)
                    this.order[index] = this.order[index - 1];
                this.order[0] = this.bufferLocation;
            }
            else
            {
                int index = 0;
                while (index <= 20 && this.order[index] != tileId)
                    ++index;
                for (; index > 1; --index)
                {
                    int num = this.order[index - 1];
                    this.order[index - 1] = this.order[index];
                    this.order[index] = num;
                }
                this.order[1] = tileId;
            }
            return hitTileObject.damage;
        }