How are the tileset coordinates somehow translated to letters in the .nw files?

Graal Reborn Platform
1

I’m sure someone here knows how the nw files translate the tile coordinates into letters. What’s the algorithm?
What happens?

I want to save files directly into .nw format through my in client editor. Help about that appreciated, tnx.

[ATTACH=CONFIG]n185695[/ATTACH]

2

it’s a fun puzzle to solve. ill give you a hint: it involves modular division. the easiest way to approach it is to put the entire tileset into a level for testing/looking

3

here. i found some code i wrote a while back. it’s a python level object.

class Level(object):
    """Load and store the map of the level, together with all the items."""

    def get_number(self, char):
        c = ord(char)
        if c >= ord('A') and c <= ord('Z'): return c - ord('A')
        if c >= ord('a') and c <= ord('z'): return c - ord('a') + 26
        if c >= ord('0') and c <= ord('9'): return c - ord('0') + 52
        if c == ord('+'): return 62
        if c == ord('/'): return 63
        return 0xFF


    def __init__(self, filename="new4.nw"):
        self.tileset = ''
        self.map = []
        self.items = {}
        self.key = {}
        self.width = 0
        self.height = 0
        self.load_file(filename)

    def load_file(self, filename="new4.nw"):
        """Load the level from specified file."""
        graallevel = open(filename)
        graallevel.readline()
        self.tileset = "pics1.png"
        for line in graallevel:
            self.map.append(line.rstrip('\
').split(" ")[5])
        for line in self.map:
            keys = [line[i:i+2] for i in range(0, len(line), 2)]
            for key in keys:
                """Here is where I can define blocking tiles wooooo"""
                tileinfo = {}
                tileinfo["blocking"] = "false"
                tileinfo["tile"] = str(self.get_number(key[1])%16 + int((self.get_number(key[0])/8)*16))+", "+str((self.get_number(key[0])%8)*4 + int(self.get_number(key[1])/16))
                tileinfo["blocking"] = "false"
                self.key[key] = tileinfo
        self.width = len(self.map[0])/2
        self.height = len(self.map)
4

Here’s how I solve it.
This is a snippet of java from one of my projects.

    public static final String BASE_64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

    public static int Base64ToIndex(String base64)
    {
        
        int baseMul = BASE_64.indexOf(base64.charAt(0));
        int base = BASE_64.indexOf(base64.charAt(1));
        
        return baseMul * BASE_64.length() + base;
    }
    
    public static String IndexToBase64(int index)
    {
        int baseMul = Math.floorDiv(index, BASE_64.length());
        int base = index - baseMul * BASE_64.length();
        
        return Character.toString(BASE_64.charAt(baseMul)) + Character.toString(BASE_64.charAt(base));
    }
5 
    public static final String BASE_64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

    public static int Base64ToIndex(String base64)
    {
        
        int baseMul = BASE_64.indexOf(base64.charAt(0));
        int base = BASE_64.indexOf(base64.charAt(1));
        
        return baseMul * BASE_64.length() + base;
    }
    
    public static String IndexToBase64(int index)
    {
        int baseMul = Math.floorDiv(index, BASE_64.length());
        int base = index - baseMul * BASE_64.length();
        
        return Character.toString(BASE_64.charAt(baseMul)) + Character.toString(BASE_64.charAt(base));
    }

Here’s how I do it.