Real Strobe Light, LLGet and "if" statements

I'm trying to create a real strobe light using prim point light.
I figure the best way to toggle quickly between on and off is by using a timer event set to .1 seconds. Every .1 second, the script should check if the prim's light is set to fully on or fully off. If off, it should switch to on etc...

To do this, I will tell the prim to also switch between 0.0 Alpha and 1.0 Alpha, and use llGetAlpha to return whether the last state was "on" or "off" and to swtich accordingly.

In the wiki, I can't find any instructions on how to use an llGet command in if/then statements. So far I can only find llGet(whatever) used in llSay.

How do you use llGetAlpha (or llGetColor, Pos, whatever) in an "if" statement.

That is, if Alpha = 0.0, llSetAlpha to 1.0, and if Alpha = 1.0, llSetAlpha to 0.0.

Thanks a lot!

MoonpaiSun Ra.

if (llGetAlpha(ALL_SIDES) == 0.0) ...
else if (llGetAlpha(ALL_SIDES) == 1.0) ...

or you could use a switch

integer switch

if (switch)
{
llSetAlpha(ALL_SIDES,0);
switch =0;
}

else
{
llSetAlpha(ALL_SIDES, 1);
switch = 1;
}

You don't even need an if:

llSetAlpha( ALL_SIDES, !(integer)llGetAlpha(ALL_SIDES) );

or with a variable:

llSetAlpha( ALL_SIDES, switch = !switch );

ex:

integer s;default{state_entry(){for(;1;)llSetAlpha(-1,s=!s);}}

you can also add a glow effect that flickers using and extra hollowed prim sized slightly larger and only textured on the inside

llSetAlpha( ALL_SIDES, !llGetAlpha( ALL_SIDES ) * 0.1 );

will work for partial gradients
(just made a "magic apple" with this yesterday)

I'd never even heard of the "switch" command! I was suprised there wasn't something like that-- turns out I just hadn't found it.

Thanks very much!

-Moonpaisun Ra

I think you misread. There is no switch/case in LSL, you were seeing an integer named "switch" being used as a boolean above.

Regardless, an alpha change every 100ms is a relatively heavyweight action (thus laggish). A particle emitter with the right parameters is far more efficient.

IM me in game if you want me to drop the strobe script I just made on you.