Text Scroller ( V1 )

Updated: 24 April 2010 by The Creator Fred Gandt

A simple text display object that scrolls text (applied as a texture) from right to left (like those LED signs) in a continuous loop.

Touch start/stop.

Create The Object

Create a fresh new prim and drop this script onto/into it. The prim will form the shape needed plus change the texturing etc. (you can do what you like to the texturing afterwards)

<lsl>default {

   state_entry()
   {
       llSetPrimitiveParams([7, <0.5, 0.01, 0.25>, // Set the size
                             8, <0.0, 0.0, 0.0, 1.0>, // Set to ZERO_ROTATION
                             9, 0, 0, <0.375, 0.875, 0.0>, 0.0, <0.0, 0.0, 0.0>, <1.0, 1.0, 0.0>, <0.0, 0.0, 0.0>, // Shape the prim
                             17, -1, "5748decc-f629-461c-9a36-a35a221fe21f", <1.0, 1.0, 0.0>, <0.0, 0.0, 0.0>, 0.0, // Apply the blank texture
                             18, -1, <1.0, 0.65, 0.1>, 1.0, // Color the prim (kinda orange)
                             20, -1, 1, // Make fullbright
                             25, -1, 0.05]); // Slight glow
       llRemoveInventory(llGetScriptName()); // Remove the script when done
   }

}</lsl>

When the script has worked its magic, Snap the prim to the grid with a grid size of .5 meters.
Shift-Drag-Copy the prim, snapping each to the grid positively along the X axis until you have 10 prims in a continuous strip.
You can actually make the object as long or short as you like. 1 prim will work. 100 prims will work (although large linksets have been a problem for link_messages in the past). Just follow the same basic build plan.
Select each of the prims from the end that has the greatest X axis position, one at a time (negatively along the X axis) until ALL are selected.

Link the set.

Display Script

Control Script

The Charsheet Texture

I am a scriptor, not a texturizerer. I created a very simple Charsheet (Character Sheet) to get you going but, it isn't very good *grins*. You will probably want to replace it.

The texture MUST be 10 characters by 10 characters (you may have empty spaces so, 56 chars is fine so long as the grid is the full 100 spaces).
Unlike the texture I have supplied...ALL the chars should be perfectly evenly spaced and not spreading into the neighboring spaces.
This is the texture supplied. You don't need to copy this. The script already has the UUID in it.

The display scripts contain a string that is in the exact same order the chars are read from top left to bottom right (row by row, not column by column).
HAVING THE SAME ORDER OF CHARS IN THE TEXTURE AND STRING IS VITAL.
The order you choose is entirely up to you as long as the strings in ALL the display scripts match the order of chars in the texture.
Don't forget to include a blank grid space on your 10 x 10 texture for a space "character". There also needs to be an empty space (in the correct place) in the scripts.
In the display script strings there are two characters that must be treated unusually. The \ and the " must have a \ placed before them.
- Example "ABCabc123.,:\"\\/| " Note the included space and the way the \ and " have a \ before them.

Functions Used

llSetPrimitiveParams - Set shapes, colors, textures and other parameters of the prim the script is in.
llRemoveInventory - Remove the named inventory from the prim contents.
llGetScriptName - Returns the name of the script that calls the function.
llSubStringIndex - Searches a string for a test and returns the index (or -1 if not found)
llRound - Returns a classically rounded (up or down; whichever is closest) float as an integer.
llGetLinkNumber - Establish the link number of the prim the script is in.
llGetSubString - Returns the part of the source string specified.
llSetLinkPrimitiveParamsFast - Set parameters in any prim in a link-set without enforced delay.
llGetInventoryName - Returns the name of the specified inventory type at index.
llStringLength - Establish how many characters make up the source string.
llGetNotecardLine - Requests the string data on line of named notecard and (if successful) dataserver returns the result.
llMessageLinked - Send a message to defined links (or self) which are picked up by link_message
llSetTimerEvent - Establish a repeating time frame that on each pass will trigger timer
llResetScript - Wipe the memory and start from the word "default".

Events Used

state_entry - Triggered when entering the state this event is in.
link_message - Triggered if llMessageLinked sends a message to the link containing this event.
dataserver - Triggered with responses to requests for data made by various functions.
timer - Triggered if a set time has elapsed then again after that time elapses again ad infinitum until the set time is zero.
touch_end - Triggered by an agent left clicking the object containing the script.
changed - Triggered by various changes that the script can sense.

Text Scroller

Contents