/// <summary>
        /// Parses a decalgroup defition
        /// </summary>
        /// <param name="parser">The DecalDefsParser that right before the decalgroup definition block</param>
        /// <returns></returns>
        private bool ParseDecalGroup(DecalDefsParser parser)
        {
            parser.SkipWhitespace(true);

            string token = parser.ReadToken();

            if (token != "{")
            {
                parser.ReportError("Expected \"{\", got " + token);
                return(false);
            }

            while (true)
            {
                parser.SkipWhitespace(true);

                token = parser.ReadToken().ToLowerInvariant();

                if (string.IsNullOrEmpty(token))
                {
                    parser.ReportError("Expected property of }, got nothing");
                    return(false);
                }

                // Decal ends here
                if (token == "}")
                {
                    break;
                }

                // Add name of child to the list of children
                if (childdecals.ContainsKey(token))
                {
                    // TODO: report problem

                    // Overwrite existing decal with new one (who knows if that's the correct way do handle duplicate entries?)
                    childdecals[token] = null;
                }
                else
                {
                    childdecals.Add(token, null);
                }

                // Read the probability wheight. We don't use it, though
                int weight = 0;
                parser.SkipWhitespace(false);
                token = parser.ReadToken();
                if (string.IsNullOrEmpty(token) || !parser.ReadSignedInt(token, ref weight))
                {
                    parser.ReportError("Expected probability weight as number, got \"" + token + "\"");
                    return(false);
                }
            }

            return(true);
        }
        /// <summary>
        /// Parses a decal definition
        /// </summary>
        /// <param name="parser">the DecalDefsParser that right before the decal definition block</param>
        /// <returns></returns>
        private bool ParseDecal(DecalDefsParser parser)
        {
            parser.SkipWhitespace(true);

            string token = parser.ReadToken();

            if (token != "{")
            {
                parser.ReportError("Expected \"{\", got " + token);
                return(false);
            }

            while (true)
            {
                parser.SkipWhitespace(true);

                token = parser.ReadToken().ToLowerInvariant();

                if (string.IsNullOrEmpty(token))
                {
                    parser.ReportError("Expected property of }, got nothing");
                    return(false);
                }

                // Decal ends here
                if (token == "}")
                {
                    break;
                }

                switch (token)
                {
                case "pic":
                    parser.SkipWhitespace(false);
                    token = parser.ReadToken();

                    if (string.IsNullOrEmpty(token))
                    {
                        parser.ReportError("Expected image name, got nothing");
                        return(false);
                    }

                    picturename = token;

                    break;
                }
            }

            return(true);
        }