Gamemaker

case 4:
                //a = Array; p = Part; s = Small; ss = Super Small
                //aString = array into string: variable = string(array[]);
                var aString = buffer_read(Buff, buffer_string);
                var Length = string_length(aString);

                //Start at 2 (starting bracket and ending bracket removed)
                var paString = string_copy(aString, 2, Length - 2);

                var count = 0;
                var count2 = 0;

                for(var i = 0; i != -1; i=i) {
                    var a = string_pos("{", paString);
                    var b = string_pos("}", paString);

                    if a != 0 && b != 0 {
                        var spaString = string_copy(paString, a+1, b-a);

                        count2 = 0;
                        for(var j = 0; j != -1; j=j) {
                            var d = string_pos(",", spaString);

                            if d != 0 {
                                var sspaString = string_copy(spaString, 1, d-1);
                                mapChanges[count,count2] = sspaString;
                                show_debug_message("Adding: [" + string(count) + "," + string(count2) +"] --1");

                                spaString = string_copy(spaString, d+1,b-a);
                                count2++;
                            } else {
                                var e = string_pos("}", spaString);
                                if e != 0 {
                                    sspaString = string_copy(spaString, 1, e-1);
                                    mapChanges[count,count2] = sspaString;
                                    show_debug_message("Adding: [" + string(count) + "," + string(count2) +"] --2");

                                    paString = string_copy(paString, b+2, Length - 2);
                                    show_debug_message("paString: " + string(paString));
                                    count++;
                                    j = -1;
                                }
                            }
                        }
                    } else {
                        i = -1;
                        show_debug_message("Array build up.")
                    }
                }
            break;