Simple Texture Changer (for inventory)(for one side or all sides).lsl

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//                                                                                                          *
//                   --Simple Texture Changer (for inventory)(for one side or all sides)--                  *
//                                                                                                          *
//***********************************************************************************************************
// www.lsleditor.org  by Alphons van der Heijden (SL: Alphons Jano)
//Creator: Bobbyb30 Swashbuckler
//Attribution: None required, but it is appreciated.
//Created: November 25, 2009
//Last Modified: November 26, 2009
//Released: Saturday, November 28, 2009
//License: Public Domain

//Status: Fully Working/Production Ready
//Version: 1.0.1

//Name: Simple Texture Changer (for inventory)(for one side or all sides).lsl
//Purpose: To "rotate" (change) the textures on a prim based on the textures in inventory.
//Technical Overview: The script finds how many textures there are in inventory, and uses a timer to change the
//                    texture on a side based on randomness or order. It takes into account inventory changes.
//Description: A simple textre changer script that changes the texture on a side(or all sides) of a prim to those in
//             inventory. It allows for a random order, or a logical "next up" order.
//Directions: Create a prim. Place pictures in prim inventory. Place script in prim inventory. Modify script parameters
//            to suit your needs. If you add pictures, and the script does not reset, manually reset the script.

//Compatible: Mono & LSL compatible
//Other items required: More than 1 texture in inventory.
//Notes: Uses a timer event. Should be low lag. Commented for easier following.
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Adjustable global variables...you may change these
integer side = ALL_SIDES;//which side to change, # of side, or ALL_SIDES to change all sides
float frequency = 2.0;//how often to change the texture in seconds. Shouldn't be below .5

//please note that the last and first texture will be shown less frequently than those in between
integer random = TRUE;//whether to show the textures randomly, or in order
integer duplicatecheck = TRUE;//if random is true, this will check to make sure the random selection is a new texture


/////////////////////////////////////////////////////////////
//global variables...do not change
integer numberoftextures;//number of textures in inventory
integer currenttexture;//inventory number of current texture

changetexture()
{
    llSetTexture(llGetInventoryName(INVENTORY_TEXTURE,currenttexture),side);//set texture using name
}

default
{
    on_rez(integer start_param)//on rez reset...probably not needed.
    {
        llResetScript();
    }
    state_entry()
    {
        llOwnerSay("Bobbyb's 'Simple Texture Changer (for inventory)(for one side or all sides).lsl' (Public Domain 2009)");
        numberoftextures = llGetInventoryNumber(INVENTORY_TEXTURE);//number of textures in inventory
        if(numberoftextures <= 0)//no textures
            llOwnerSay("No textures were found in my inventory. Please add textures.");
        else if(numberoftextures == 1)//only 1 texture
            llOwnerSay("I only found 1 picture in my inventory. I need more in order to change them.");
        //for 2 random isn't needed...but I'm too lazy to add that in
        else//more than 1 texture found...
        {
            llOwnerSay("I found " + (string)numberoftextures + " pictures which I will change every "
                + (string)frequency + " seconds.");
            llSetTimerEvent(frequency);
        }
    }
    timer()
    {
        if(random)//show pics randomly
        {
            integer randomtexture;
            if(duplicatecheck)//whether to make sure random doesn't repeat itself
            {
                do
                {
                    randomtexture= llRound(llFrand(numberoftextures - 1));
                    //llOwnerSay("r" + (string)randomtexture);//debug
                }while(randomtexture == currenttexture);//make sure the random one isn't the same as the current one
            }
            else//no duplicate check
                randomtexture = llRound(llFrand(numberoftextures - 1));//generate random texture number
            currenttexture = randomtexture;//set the current one to the random one selected
            changetexture();//chang the texture
            //llOwnerSay("c" + (string)currenttexture);//debug
        }
        else//not random, go in order
        {
            ++currenttexture;
            if(currenttexture == numberoftextures)//if current texture = number of textures, reset counter
                currenttexture = 0;
            changetexture();//chang the texture
            //llOwnerSay("c" + (string)currenttexture);//debug
        }

    }
    changed(integer change)
    {
        if(change & CHANGED_INVENTORY)
        {
            llOwnerSay("Inventory change detected.");
            numberoftextures = llGetInventoryNumber(INVENTORY_TEXTURE);
            llOwnerSay("I found " + (string)numberoftextures + " pictures which I will change every "
                + (string)frequency + " seconds.");
        }
    }
}
//no easter eggs =(