Fill a Control with text from the bottom to the top...to mimic a chat window

Questions & Answers
1

I want to create a stack based fill to mimick a normal chat window.

What GUI contructs do I need to use.

Thanks, stringa

2

A simple method would be to add the new messages to the end of the current content, then redisplay it in a GUI box (example in C#):

void OnGUI()
{
    string chatContent = "This is a chat window
with
multiple
lines";
    string newChatContent = "
and
even
more
lines";

    if (newChatContent.Length > 0)
        chatContent += newChatContent;

    GUIStyle style = new GUIStyle();
    GUIStyleState styleState = new GUIStyleState();

    styleState.textColor = Color.cyan;

    style.alignment = TextAnchor.LowerLeft;
    style.normal = styleState;

    GUI.Box(new Rect(0, 0, 400, 200), chatContent, style);
}

Instead of a string for the content you could use a List of strings, which would provide easy addition and removal of lines.

As for a way to enter messages, look into GUI.TextField. See also the GUI Scripting Guide:

http://unity3d.com/support/documentation/Components/GUI%20Scripting%20Guide.html

This is an interesting post about how to make a chat system:

http://forum.unity3d.com/threads/50369-Hep!-Display-what-you-have-entered-in-chat-window