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    Repeatable Random Number

    Coding
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    • Martin
      Martin Fuze Team last edited by

      Well, you asked for advice, so I would check out what was suggested, but if you prefer to go with what you want, then sure, just type it in using Fuze syntax:

      // declare random_seed somewhere as a global
      function myRand()
          random_seed = random_seed * 1103515245 + 12345
      return (random_seed / 65536) % 32768
      
      1 Reply Last reply Reply Quote 0
      • F
        faz808 F last edited by

        I'm sorry if I seem to have given the impression that I was ungrateful for the suggestion by pianofire. That was certainly not my intention. It's just that all code possibilities are worth exploring and some are better than others.
        I have tried the suggested code - pianofire - and it runs flawlessly, Thanks...

        1 Reply Last reply Reply Quote 2
        • pianofire
          pianofire Fuze Team last edited by

          I have suggested that a way of setting the random seed be added to the language

          1 Reply Last reply Reply Quote 1
          • F
            faz808 F last edited by

            Great! Thanks again.

            1 Reply Last reply Reply Quote 1
            • F
              faz808 F last edited by

              Any news on the next update? Thanks.

              1 Reply Last reply Reply Quote 0
              • Retrocade_media
                Retrocade_media F last edited by Retrocade_media

                You could loop through the length of a string? So like
                for i = 0 to len(seed) loop
                Seed[:i:] * (i*14)
                Repeat

                That way each number would return a set value. If you add more parameters it could output different numbers based on the scenario, but it'd be the same number per seed
                (Also this is using the advanced text functions, more about them in the hints and tips section on this forum)

                1 Reply Last reply Reply Quote 0
                • PB____
                  PB____ last edited by PB____

                  I suspect you could use stringhash(value) to generate pseudo random numbers:

                  string seed = str(random(1000000000))
                  function rng(low, high)
                      int value = stringhash(seed)
                      seed = str(value)
                      // following line limits "value" to be between high and low:
                      value = (abs(value) % abs(high-low)) + low
                  return value
                  

                  EDIT: just checked, and similar numbers give similar patterns, so this might not be what you want.
                  For example, the results of StringHash("0") to StringHash("9") are 177621 to 177630 (counting). However if your initial seed is random, the sequence of the example code above at least looks somewhat random to me...

                  1 Reply Last reply Reply Quote 0
                  • F
                    faz808 F last edited by

                    Deleted my Elite clone as it taking up too much time. Also the code was a complete mess. Now unfortunately, when I try to access the Map Editor or Image Editor Fuze closes "because an error occurred". I've done a Switch reboot but the problem remains. The crash also occurred when I made two copies of my original (approx. 800 lines) code. If I tried to reload and run the original file a crash would occur but I learnt to live with that. Could my two copies still be present somewhere? I've just loaded and run KatRacer ok. Back to tools and image editor - crash again. Any ideas, Sir. Thanks.

                    M 1 Reply Last reply Reply Quote 0
                    • M
                      Maxwello F @faz808 last edited by

                      @faz808
                      Try creating a new project and putting in some basic code like load image, create sprite, variable =1, clear, update, repeat..
                      Then try.
                      Whilst we wait for a better assist

                      1 Reply Last reply Reply Quote 0
                      • F
                        faz808 F last edited by

                        Update. I've deleted all the downloaded examples (not the included examples!) and the problem has disappeared. One of the downloaded files was causing the crash. I had about a dozen so which one was causing the problem is anyone's guess.

                        pianofire 1 Reply Last reply Reply Quote 1
                        • F
                          faz808 F last edited by

                          I've just made two copies of a small Print "hello" program. No crashes. The problem was definitely caused by one of the downloaded code examples.

                          1 Reply Last reply Reply Quote 0
                          • pianofire
                            pianofire Fuze Team @faz808 last edited by

                            @faz808 Was this something you downloaded by entering a code or from a friend share?

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                            • F
                              faz808 F last edited by

                              Entering a code.

                              pianofire 1 Reply Last reply Reply Quote 0
                              • pianofire
                                pianofire Fuze Team @faz808 last edited by

                                @faz808 OK I will see if I can identify the culprit

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                                • F
                                  faz808 F last edited by

                                  I should have removed them one by one and retested. Sorry about that.

                                  1 Reply Last reply Reply Quote 0
                                  • pianofire
                                    pianofire Fuze Team last edited by

                                    @faz808 No problem

                                    1 Reply Last reply Reply Quote 0
                                    • pianofire
                                      pianofire Fuze Team last edited by

                                      @faz808 Can you do me a favour please? Download Tanks (QXK7LRCQ9D) and see if this causes the problem.

                                      1 Reply Last reply Reply Quote 0
                                      • F
                                        faz808 F last edited by

                                        Tanks loaded and run. No problems. Maybe it was my code. I had about 4700 star points plotted. Together with planet images. Maybe I was pushing my luck with memory requirements. And random planet names. I don't know. Just thinking out loud here. All seems ok now. I am going to rethink my Elite clone. Approach it from a diffent angle. Thanks

                                        1 Reply Last reply Reply Quote 0
                                        • F
                                          faz808 F last edited by

                                          I deleted my 3d stars code in my eagerness to clear out downloaded code. Luckely under:-

                                          Beginners / Array Problems - 17 days ago, I retreived it.

                                          But ... I didn't notice the error ....

                                          23 star0[i] = (random(50))-25
                                          24 star1[i] = (random(50))-25
                                          25 star2[i] = zdepth

                                          should of course be:-

                                          23 star0[pp] = (random(50))-25
                                          24 star1[pp] = (random(50))-25
                                          25 star2[pp] = zdepth

                                          Happy coding, John

                                          1 Reply Last reply Reply Quote 0
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