LSL light switch script: touch to turn a lamp on and off

Turn any lamp, bulb, candle or neon sign into a working light. Touch it and this light switch script turns on real Second Life light, a soft glow and full bright on the face you choose. Touch again to turn it all off.

lsl-light-switch-script.lsl · 41 lines Check this script

// Light Switch - free LSL script from WhatSL (https://whatsl.com/scripts/lsl-light-switch-script)
// Free to use, change and put in your own creations, also ones you sell.
//
// Put this script in a lamp, bulb or candle. Touch to turn the light on and off.
// The prim gives real light, and can glow and be full bright while it is on.

vector  LIGHT_COLOR     = <1.0, 0.9, 0.7>;  // warm white
float   LIGHT_INTENSITY = 1.0;   // 0.0 to 1.0
float   LIGHT_RADIUS    = 10.0;  // metres, up to 20.0
float   LIGHT_FALLOFF   = 0.75;  // 0.0 to 2.0
float   GLOW_AMOUNT     = 0.1;   // 0.0 = no glow
integer USE_FULLBRIGHT  = TRUE;
integer LIGHT_FACE      = ALL_SIDES;  // the face that glows, or ALL_SIDES
integer START_ON        = FALSE;

integer gOn = FALSE;

setLight(integer on)
{
    float glow = 0.0;
    if (on) glow = GLOW_AMOUNT;
    llSetLinkPrimitiveParamsFast(LINK_THIS, [
        PRIM_POINT_LIGHT, on, LIGHT_COLOR, LIGHT_INTENSITY, LIGHT_RADIUS, LIGHT_FALLOFF,
        PRIM_FULLBRIGHT, LIGHT_FACE, on && USE_FULLBRIGHT,
        PRIM_GLOW, LIGHT_FACE, glow
    ]);
    gOn = on;
}

default
{
    state_entry()
    {
        setLight(START_ON);
    }

    touch_start(integer total)
    {
        setLight(!gOn);
    }
}

Free to use, change and put in your own creations, also ones you sell.

How to set it up

Put the script in the lamp's shade or bulb prim and save.
Touch the lamp to switch it on and off.
Change the colour, intensity and radius to fit the room.

Settings

LIGHT_COLOR: the colour of the light. <1.0, 0.9, 0.7> is warm white, <0.7, 0.8, 1.0> is cool white.
LIGHT_INTENSITY, LIGHT_RADIUS, LIGHT_FALLOFF: how strong the light is, how far it reaches and how quickly it fades.
GLOW_AMOUNT: a soft glow on the lit face; 0.0 turns glow off.
USE_FULLBRIGHT: makes the lit face look bright even at night.
LIGHT_FACE: the face that glows (for example only the bulb), or ALL_SIDES.
START_ON: whether the light is on after the script starts.

Tips

Visitors only see the light itself if they have local lights enabled in their graphics settings. The glow and full bright still show.
Many lights close together can slow the viewer. Use a few strong lights rather than many small ones.

Frequently asked questions

Why can't I see the light on the walls?

Your viewer's graphics settings may limit local lights. Turn up the graphics quality or allow local lights, and check that LIGHT_RADIUS reaches the walls.

Can one switch control several lamps?

This script controls its own prim. To control several lamps, the switch can send a message to the lamps with llMessageLinked (linked) or llRegionSay (not linked), and each lamp listens for it.

Can I make it turn on at night by itself?

Yes. Check the sun position with llGetSunDirection in a timer and switch the light when the sun goes down.

float OPEN_ANGLE = 90.0; // degrees to swing; use -90.0 to open the other way float AUTO_CLOSE = 10.0; // seconds before it closes by itself; 0.0 = stay open integer HINGE_SIDE = 1; // 1 = hinge on the +X edge, -1 = hinge on the -X edge string OPEN_SOUND = ""; // optional: a sound name in the door's Contents, or a sound UUID string CLOSE_SOUND = ""; integer gOpen = FALSE; vector gClosedPos; rotation gClosedRot; openDoor()

vector SIT_POS = <0.0, 0.0, 0.5>; // metres from the centre of the object (never use <0,0,0>) vector SIT_ROT = <0.0, 0.0, 0.0>; // degrees, for example <0.0, 0.0, 90.0> to turn the avatar string SIT_TEXT = "Sit"; // the word on the right-click menu integer HIDE_WHEN_USED = FALSE; // TRUE = the object turns invisible while someone sits (pose ball) key gSitter = NULL_KEY; string poseAnim() { return llGetInventoryName(INVENTORY_ANIMATION, 0); }

string THANK_YOU = "Thank you for the tip, %name%!"; // %name% becomes the tipper's name integer PUBLIC_THANKS = TRUE; // TRUE = say thanks in local chat, FALSE = only the tipper sees it integer DEFAULT_AMOUNT = 100; // the amount in the Pay window's box list QUICK_AMOUNTS = [50, 100, 250, 500]; // exactly four quick buttons, in L$ integer CLICK_TO_PAY = TRUE; // TRUE = a left click opens the Pay window vector TEXT_COLOR = <1.0, 0.85, 0.3>; integer gTotal = 0; string gLast = ""; string gOwnerName = "";