Forum Discussion

SOL's avatar
SOL
Visitor
14 years ago

So many ideas

I have read some recent threads of individuals getting frustrated on starting. I can relate but only because of my lack of programming skills. I have ideas that I would like to learn more about, but I am finding frustration in the documentation to some extent.

The information is there, but real life examples I think are something that I need to get a better grasp on things. I continue to read the PDF's, I continue to browse the internet... but still something is missing for me. I thank everyone for the help that is out there, but maybe this isnt for me? I hope that isn't the case and I can find some way to wrap my head around everything.

I am able to Side-Load channels, I am able to use the examples given and load them, and then successfully change minor attributes such as "text" or #color to get a different effect on screen. The problem is when I try and fly.. 😞 and add things that werent originally there.

I understand the power of Roku, streaming and all that.... but I can't even THINK about starting to figure that part out, if I can't do my simple project ideas.

if else statements : RND() : Passing RND() variables to statements to call.

My simple first idea I wanted to try was something in essence of making a coin toss channel

hort = RND(3)
if hort = 1
printMsg("Heads")
else if hort = 2
printMsg("Tails")
end if
Roku Developer Program

6 Replies

  • bandal's avatar
    bandal
    Visitor
    14 years ago
    I think there are many in the same boat. I understand that RokuJoel may be writing some better examples or complete apps with descriptions for the next SDK release. I know we need them now, not later.
  • RokuJoel's avatar
    RokuJoel
    Binge Watcher
    14 years ago
    "SOL" wrote:

    hort = RND(3)
    if hort = 1
    printMsg("Heads")
    else if hort = 2
    printMsg("Tails")
    end if


    So that should work, if you wrap it up:

    sub main()
    hort = RND(2) 
        if hort = 1 then
            printMsg("Heads")
        else if hort = 2 then
             printMsg("Tails")
        end if
    while true
    end while
    end sub


    The "while" loop is to keep your channel from exiting when it finishes.

    FYI rnd(3) output will be 1, 2 or 3. For two value pseudo-random number generation you would do rnd(2). This may be different from what you see on other platforms.

    Also, me, personally, I prefer to tack a "then" on the end of my if statements, as a habit, as there are some conditions under which the statement will fail if you leave it off.

    - Joel
  • SOL's avatar
    SOL
    Visitor
    14 years ago
    Thanks Joel.

    In the example in the PDF... they used RND(56).... this was stated to give a number between 1-55. I guess I got confused
  • SOL's avatar
    SOL
    Visitor
    14 years ago
    sub Main()
    screen = CreateObject("roPosterScreen")
      screen.Show()

    hort = RND(2)
        if hort = 1 then
            screen.ShowMessage("Heads")
        else if hort = 2 then
             screen.ShowMessage("Tails")
      end if
     while true
    end while
    end sub


    This is what I ended up with. Thanks again
  • RokuMarkn's avatar
    RokuMarkn
    Visitor
    14 years ago
    "SOL" wrote:

    In the example in the PDF... they used RND(56).... this was stated to give a number between 1-55. I guess I got confused


    This is what I see in the BrightScript 3.0 Reference Manual:

    RND(integer) returns an integer between 1 and integer inclusive . For example, RND(55) returns a pseudo-random integer greater than zero and less than 56.

    Maybe this was different in an earlier version?

    --Mark
  • SOL's avatar
    SOL
    Visitor
    14 years ago
    You guys are correct. I read it wrong.

    Now, 1 last thing before I go.....for now.

    If I were to say.... have 2 jpg's *heads.jpg and tails.jpg that I put in the images folder, and instead of wanting the text- I would like one of the images...

    Question 1) Do I need roImageCanvas ? (God help me if I do 😉 )
    Question 2) What is the path for images contained in 'images' folder to be called by channel