Lua doubt and DxDrawText Flashing

[DarkLink]

Okay first I am need to clarify my doubt about Lua. Something that I didnt get it yet, so if someone could explain me, I would be really grateful

So.. if we have a function like this:

  
function blabla() 
      setTimer(heei, 1000,3) 
      local x = 5 
end 
  
end 
  

My question is: the line 4 "local x = 5" its only executed after the 3 loops of the timer?? or its readed right when the timer starts?

Thanks!

My second problem, I was trying to make a DxDrawText flashing, and I made it, but the flashing isnt so good, seems bugged or bad sync

And then it doesnt stop flashing, and I put the removeEventHandler onClientRender.. so?

This is the code:

addEvent("alertRadar",true) 
function showAlertAdvice() 
  
     
    addEventHandler ( "onClientRender", getRootElement(), firstAppear) 
     
end 
addEventHandler("alertRadar", getRootElement(), showAlertAdvice) 
  
function firstAppear () 
        X,Y = guiGetScreenSize () 
                X = X * (1/5.5) 
                Y = Y * (1/3) 
         
        setTimer(function(X,Y) 
        local alpha = "255" 
        dxDrawText ( "Slaineeed!", X, Y, X, Y, tocolor(255, 64, 64, alpha), 5) 
        alpha = 0 end, 500, 3, X,Y) 
        seTimer(hideAlert, 1500, 1) 
  
end 
  
function hideAlert() 
    removeEventHandler("onClientRender", getRootElement(), firstAppear) 
end 
  

If someone could help me here..

Thanks in advance!!

[JR10]

For your first question no it's executed as soon as the timer start.

addEvent("alertRadar",true) 
function showAlertAdvice() 
  
    
    addEventHandler ( "onClientRender", getRootElement(), firstAppear) 
    
end 
addEventHandler("alertRadar", getRootElement(), showAlertAdvice) 
  
function firstAppear () 
        X,Y = guiGetScreenSize () 
                X = X * (1/5.5) 
                Y = Y * (1/3) 
        local alpha = 255 
       dxDrawText ( "Slaineeed!", X, Y, X, Y, tocolor(255, 64, 64, alpha), 5) 
        setTimer(function() 
        if alpha == 0 then 
             alpha = 255 
        else 
             alpha = 0 
       end, 500, 3) 
        seTimer(hideAlert, 1500, 1) 
  
end 
  
function hideAlert() 
    removeEventHandler("onClientRender", getRootElement(), firstAppear) 
end 

Not tested.

[DarkLink]

Hm thanks for your help, I understand it

About the code, there was an error, one end missing on the function inside the timer

But ur code now doesnt even flash

Ty

[JR10]

Maybe:

addEvent("alertRadar",true) 
function showAlertAdvice() 
  
    
    addEventHandler ( "onClientRender", getRootElement(), firstAppear) 
    
end 
addEventHandler("alertRadar", getRootElement(), showAlertAdvice) 
  
function firstAppear () 
        X,Y = guiGetScreenSize () 
                X = X * (1/5.5) 
                Y = Y * (1/3) 
        local alpha = 255 
       dxDrawText ( "Slaineeed!", X, Y, X, Y, tocolor(255, 64, 64, alpha), 5) 
         
        seTimer(hideAlert, 1500, 1) 
  
end 
  
setTimer(function() 
        if alpha == 0 then 
             alpha = 255 
        else 
             alpha = 0 
       end, 500, 3) 
  
function hideAlert() 
    removeEventHandler("onClientRender", getRootElement(), firstAppear) 
end 

[Aibo]

this is overkill, you are creating new timers every frame.

X,Y = guiGetScreenSize() 
X = X * (1/5.5) 
Y = Y * (1/3) 
alpha = 255 
  
function firstAppear() 
  dxDrawText("Slaineeed!", X, Y, X, Y, tocolor(255, 64, 64, alpha), 5) 
end 
  
function hideAlert() 
  removeEventHandler("onClientRender", getRootElement(), firstAppear) 
end 
  
addEvent("alertRadar",true) 
function showAlertAdvice() 
  addEventHandler("onClientRender", getRootElement(), firstAppear) 
  setTimer(function() alpha = alpha == 255 and 0 or 255 end, 500, 3) 
  setTimer(hideAlert, 1500, 1) 
end 
addEventHandler("alertRadar", getRootElement(), showAlertAdvice) 

edited*

[DarkLink]

Didnt worked JH10, but thanks for ur help!

Aibo didnt test yet, but can you please explain me this line:

setTimer(function() alpha = alpha == 255 and 0 or 255 end, 500, 3) ?

I cant get it, u assign the variable alpha to 255 and 0 ? or 255? I didnt get it..

Thanks in advance!

[Aibo]

alpha = alpha == 255 and 0 or 255

basically if statement (alpha == 255) is true, it sets alpha = 0 (and 0) else it sets alpha = 255 (or 255)

is pretty much the same as:

if alpha == 255 then

alpha = 0

else

alpha = 255

end

[DarkLink]

alpha = alpha == 255 and 0 or 255

basically if expression (alpha == 255) is true, it sets alpha = 0 (and 0) else it sets alpha = 255 (or 255)

is pretty much the same as:

if alpha == 255 then

alpha = 0

else

alpha = 255

end

AHHH I understand it very well!! Didnt know that type of scripting

Thanks bro!

Thanks JH10 too!!

I tested and it works Aibo!

Ty again

[falseprophet]

Here is a much simpler approach. If lua or MTA has a bitwise NOT operator, then the code can be chopped down by like 90%.

x = 0 
timer = -1 
function guiDrawRoutine() 
    if (x==0) then 
        dxDrawRectangle(250, 250, 125, 150, tocolor(25, 25, 25, 150)) 
    end 
    if (timer == -1) then 
        timer = setTimer(changeX, 500, 0) -- change 500 to however miliseconds/seconds you want your stuff to be displayed for. 
    end 
end 
  
function changeX() 
    -- Does Lua have a bitwise NOT operator? 
    if (x==0) then 
        x = 1 
    else 
        x = 0 
    end 
    if (timer ~= 0) then 
        killTimer(timer) 
        timer = -1 
    end 
end 
  

[qaisjp]

yes I think it has a NOT operator.

  
lala = false 
if not lala then 
   print(tostring(lala)) 
end 
  

== > false

[falseprophet]

yes I think it has a NOT operator.

  
lala = false 
if not lala then 
   print(tostring(lala)) 
end 
  

== > false

NOT is NOT a bitwise NOT

[Remi-X]

But you can make 'x' a bool in that script.

x = false 
function changeX ( ) 
    x = not x 
    ... 
end 

Same with the timer.

By the way, from your script:

if (timer ~= 0) then 
timer = -1 

So, the if condition will always pass, as a timer doesn't return zero, and you assign -1 to the variable.

There's a problem though. We are creating and destroying a timer every second, so why would we make the 'loop' argument infinite in the first place? Also, we can't cancel this animation, as the timer recreates itself.

Aibo's script should work neat, though it uses two functions. I'm not sure if that's needed, as you said too. Aibo is also creating two timers. That could be done in one. Let's mix those scripts.

  
X,Y = guiGetScreenSize() 
X = X * (1/5.5) 
Y = Y * (1/3) 
show,timer = false,nil 
  
function draw ( ) 
    if show then -- Only show the text when we want to 
        dxDrawText("Slaineeed!", X, Y, X, Y, tocolor(255, 64, 64, 255), 5) 
    end 
end 
  
function toggleAlertAdvice ( ) -- Call this function to put the flashing on or off 
    if isTimer ( timer ) then killTimer ( timer ) else timer = setTimer ( function() show=not show end, 500, 0 ) end 
    -- Function embedded in the timer 
end 
addEvent ( "alertRadar", true ) -- Or call the event 
addEventHandler ( "alertRadar", root, toggleAlertAdvice ) 
  
addEventHandler ( "onClientRender", root, draw ) -- 'root' is a global variable, the same as getRootElement(). 

[DarkLink]

Thanks for all the replys guys, I will keep Aibo solution is working fine.

I know I can optimize the code, but dont need it , I guess

Thanks all!!