LiveCode Forums.

Hi everyone! I´ve been trying to make this activity where you should put three fields and a button in the fields you should specify the angles of a traingle, and when you hit the button, an image of the triagle should appear, it was working properly, and I closed the file. I do not know why now it is not working, it shows me this error.
***button "What is?": execution error at line 7 (Operators +: error in left operand), char 1***

this is the code
on mouseUp

put field "first" into x
put field "second" into y
put field "third" into z

if x+y+z=180
then set the visible of img "error" to FALSE

if x+y+z=180 and x=60 and y=60 and z=60
then set the visible of img "equilateral(1).png" to TRUE
else
set the visible of img "equilateral(1).png" to FALSE


if x+y+z=180 and x=y or y=z or x=z
then set the visible of img "isosceles" to TRUE
else
set the visible of img "isosceles" to FALSE


if x+y+z=180 and x=90 or y=90 or z=90
then set the visible of img "recto" to TRUE
else
set the visible of img "recto" to FALSE


if x+y+z=180 and x<>y and x<>z and y<>z
then set the visible of img "escaleno" to TRUE
else
set the visible of img "escaleno" to FALSE


if x + y + z <> 180
then set the visible of img "error" to TRUE

end if
end if
end if
end if



end mouseUp

Déjà vue? viewtopic.php?f=7&t=30057&p=159687#p159687

It is good style to first answer other unanswered threads of yours!
BTW, your code compiled without error on my machine.

This is probably homework. He/she learned nothing from the answers. Poor Klaus.

Then we have three of them currently.
O tempora, o mores!

Your code works, but an end if is missing:

########CODE to copy and paste#######
on mouseUp
put field "first" into x
put field "second" into y
put field "third" into z
if x+y+z=180 then set the visible of img "error" to FALSE

if x+y+z=180 and x=60 and y=60 and z=60 then
set the visible of img "equilateral(1).png" to TRUE
else
set the visible of img "equilateral(1).png" to FALSE

if x+y+z=180 and x=y or y=z or x=z then
set the visible of img "isosceles" to TRUE
else
set the visible of img "isosceles" to FALSE

if x+y+z=180 and x=90 or y=90 or z=90 then
set the visible of img "recto" to TRUE
else
set the visible of img "recto" to FALSE

if x+y+z=180 and x<>y and x<>z and y<>z then
set the visible of img "escaleno" to TRUE
else
set the visible of img "escaleno" to FALSE

if x + y + z <> 180 then
set the visible of img "error" to TRUE
end if
end if
end if
end if
end if
end mouseUp
#####END OF CODE generated by http://tinyurl.com/j8xf3xq with livecode 9.0.0-dp-10#####

Buongiorno Max,

you are spoiling almost all of our well-thought pedagogical approaches!


Best

Klaus

This handler begs for a switch statement.

A switch statement, or just some clean up. The repeat I used there could be done a lot better, and probably without repeat at all, but I'll leave that as homework