boolean value

[stefutz101]

Hi again . I have a problem.

if newbieShow == false then return end 
    local x,y,z = getElementPosition(newbiePosition) 
    local x,y = getScreenFromWorldPosition (x,y,z) 
    local length = dxGetTextWidth(newbieText,1,"default-bold") 
    --dxDrawRectangle ( x-length/2-screenWidth*0.01,y, screenWidth*0.02+length, screenHeight*0.1, tocolor (109,163,61,100) ) 
    dxDrawingColorText(newbieHead,x-length/2-screenWidth*0.01,y, x+length/2+screenWidth*0.01, y+screenHeight*0.03, tocolor(22,255,22,120),0.5, 1.1, "default-bold", "center", "center") 
    dxDrawingColorText(newbieText,x-length/2-screenWidth*0.01,y+screenHeight*0.03, x+length/2+screenWidth*0.01, y+screenHeight*0.07, tocolor(255,255,255,120),0.5, 1, "default-bold", "center", "center") 

dxDrawingColorText(newbieHead,x-length/2-screenWidth*0.01,y, x+length/2+screenWidth*0.01, y+screenHeight*0.03, tocolor(22,255,22,120),0.5, 1.1, "default-bold", "center", "center") 

Attempt to perform arithmetic on local x a boolean value.

So i guess that x isn't a number ? How i can test if that x and y returned from getScreenFromWorldPosition (x,y,z) are numbers ? That's the problem . Btw this is a part from script.

Thanks in advance!

[tosfera]

A positive value is always true, as well as a string. the only things that are used as false are: false and nil. If you would add a simple check;

if ( x and y ) then  

You're already there.

[stefutz101]

if type(x)=="boolean" then return end  

This can work ?

[tosfera]

that would do, yes. But you can also use the if ( not x ) then return end way to cancel it. No need to use type to see if it's a boolean.

[stefutz101]

Yes thanks . I'm wasn't sure if that will work. Thanks a lot .