console_algo

static inline var
{

}

var coords
{
    chat  :
    {
        start  : [1,1],
        width  : 30,
        height : 30,
        history_length : 200
    },
    room  :
    {
        start  : [1,1],
        width  : 30,
        height : 1
    },
    users :
    {
        start  : [1,1],
        width  : 20,
        height : 30
    },
    input :
    {
        start  : [1,1],
        width  : 30,
        height : 1
    },
}

var chat_lines = [];
var users_lines = [];

room(name)
{
    clear_room();

    position(ROOM);
    write(name);
    position(INPUT);
}

chat(nick, text)
{
    // Format width
    text = '<${nick}>:$text';
    var temp = '';
    if(text.length < coords.chat.width)
    {
        chat_lines.append(text);
    }
    else
    {
        for(i in 0...text.length)
        {
            temp += text.charAt(i);
            if(i % coords.chat.width == 0)
            {
                chat_lines.push(text);
                temp = '';
            }
        }
    }

    // Format history (to avoid overflow)
    while(chat_lines.length > coords.chat.history_length)
        chat_lines.shift(); // TODO: save into log

    var current_chat_lines = chat_lines;

    // Format height
    while(current_chat_lines.length > coords.chat.height)
        current_chat_lines.shift();

    // Draw lines
    clear_chat();

    for(i in 0...coords.chat.height)
    {
        position(CHAT(i));
        write(current_chat_lines(i));
    }

    position(INPUT);
}

// Add or delete user if exist
user(nick)
{
    // If user called and exist, delete it
    if(Lambda.exists(users_lines, nick))
        users_lines.remove(nick);
    else
        users_lines.push(nick);

    // Format height
    if(users_lines > coords.users.height)
    {
        while(users_lines.length > coords.users.height-1) // -1 to add ...
            users_lines.pop();
        users_line.push('...');
    }

    // Format width
    for(line in users_lines)
    {
        if(line.length > coords.users.width)
        {
            line = line.substring(0, coords.users.width-3);
            line += '...';
        }
    }

    // Draw lines
    clear_users();

    for(i in 0...coords.users.height)
    {
        position(USERS(i));
        write(users_line(i));
    }

    position(INPUT);
}