material resoltuion

resolve.cs

public static string ResolveRelativeMaterialPath(string relativePath, int variantId)
{
    Regex reg = new Regex( "(.)([0-9]{4})(.)([0-9]{4})" );
    var match = reg.Match( relativePath );
    if( !match.Success || match.Groups.Count != 5)
        throw new ArgumentException( "RelativePath was not in the proper form." );

    var id1 = match.Groups[ 1 ].Captures[ 0 ].Value;
    var val1 = match.Groups[ 2 ].Captures[ 0 ].Value;
    var id2 = match.Groups[ 3 ].Captures[ 0 ].Value;
    var val2 = match.Groups[ 4 ].Captures[ 0 ].Value;

    if( id1 == "c" )
    {
        switch (id2)
        {
            case "a":
                return $"chara/accessory/a{val2}/material/v{variantId:D4}{relativePath}";
            case "b":
                return $"chara/human/c{val1}/obj/body/b{val2}/material/v{variantId:D4}{relativePath}";
            case "e":
                return $"chara/equipment/e{val2}/material/v{variantId:D4}{relativePath}";
            case "f":
                return $"chara/human/c{val1}/obj/face/f{val2}/material{relativePath}";
            case "h":
                return $"chara/human/c{val1}/obj/hair/h{val2}/material/v{variantId:D4}{relativePath}";
            case "t":
                return $"chara/human/c{val1}/obj/tail/t{val2}/material/v{variantId:D4}{relativePath}";
            case "z":
                return $"chara/human/c{val1}/obj/zear/z{val2}/material{relativePath}";
        }
    }
    if( id1 == "d" && id2 == "e" )
        return $"chara/demihuman/d{val1}/obj/equipment/e{val2}/material/v{variantId:D4}{relativePath}";
    if( id1 == "m" && id2 == "b" )
        return $"chara/monster/m{val1}/obj/body/b{val2}/material/v{variantId:D4}{relativePath}";
    if( id1 == "w" && id2 == "b" )
        return $"chara/weapon/w{val1}/obj/body/b{val2}/material/v{variantId:D4}{relativePath}";

    return "";
}