Help me whit this math.random :P - ComputerCraft Forums (archive)

PrometeoPrime #1

PrometeoPrime's profile picture

6 posts

Location Italy

Posted 02 June 2014 - 06:22 PM

Hey people, this is a part of a my program.. i want to make a little easter egg but.. it do not works because this is the first time i use math.random and infact the program give me an error can someone help me to fix my program?

var1 = math.random(1,3)
if var1 = (1,2) then
os.reboot()
else
paintutils.loadImage("PrometeoOS/Images/PrometeoOS_Images/image1")
sleep(1)
term.clear()
paintutils.loadImage("PrometeoOS/Images/PrometeoOS_Images/image2")
term.setCursorPos(15,15)
print("LoL")
sleep(3)
term.clear()
os.reboot
end

Edited on 02 June 2014 - 04:56 PM

Whitecatblack #2

49 posts

Location United States (EST)

Posted 02 June 2014 - 06:26 PM

PrometeoPrime said:


var1 = math.random(1,3)
if var1 = (1,2) then
  os.reboot()
else
  paintutils.loadImage("PrometeoOS/Images/PrometeoOS_Images/image1")
  sleep(1)
  term.clear()
  paintutils.loadImage("PrometeoOS/Images/PrometeoOS_Images/image2")
  term.setCursorPos(15,15)
  print("LoL")
  sleep(3)
  term.clear()
  os.reboot
end

Just formatting your code so it is easier to read.
[Edit] Also indented it as well.

Whitecatblack

Edited on 02 June 2014 - 04:27 PM

Whitecatblack #3

49 posts

Location United States (EST)

Posted 02 June 2014 - 06:36 PM

So, to troubleshooting your code:


if var1 = (1,2) then

This line is from your code. It looks like you are trying to see if var1 is equal to 1 or 2, correct?
If so, use this line instead:


if var1 == 1 or var1 == 2 then

When you are asking a computer to compare two values to see if they are equal, we use two equal signs (==). Also, we use an (or) statement to see if var1 is equal to either 1 or 2.

Whitecatblack

PrometeoPrime #4

PrometeoPrime's profile picture

6 posts

Location Italy

Posted 02 June 2014 - 06:43 PM

Ah ok thanks

TheOddByte #5

1852 posts

Location Sweden

Posted 02 June 2014 - 09:21 PM

To expand a little on what Whitecatblack said, You can also use elseif


local var = math.random( 1, 3 )
if var == 1 then -- If it's equal to 1
    ...
elseif var == 2 then -- If it's equal to 2
    ...
else -- If both statements above are false
    ...
end

But in this case 'or' would be better

A little example usage of 'or'


local input = read()
if input == "Yes" or input == "yes" then
    print("You answered yes, I don't know why though O_o")
elseif input == "No" or input == "no" then
    print("What are you saying no to? .-.")
end

Whitecatblack #6

49 posts

Location United States (EST)

Posted 02 June 2014 - 09:29 PM

TheOddByte said:
A little example usage of 'or'

Even though I understand that you are trying to demonstrate functionality of an (or) statement, I can't help myself but make a comment onto how what you said should really be done. Instead of what you wrote, it would be best if used like this (will demonstrate a use of an (or) statement as well):


local input = string.lower(read())
if input == "yes" or input == "yea" then
  print("You answered yes, I don't know why though O_o")
elseif input == "no" or input == "na" then
  print("What are you saying no to? .-.")
end

TheOddByte #7

1852 posts

Location Sweden

Posted 02 June 2014 - 09:57 PM

Whitecatblack, on 02 June 2014 - 09:29 PM said:
-Snip-

That's basically the same thing, except that you lowered the input and are only checking for lowercase strings as that is what the input will have turned into.
I wasn't really thinking of the best way todo that code I wrote, since it was just a mere example. The 'or' statements work as they should and all and that's the important thing here.