LuaForWindows_v5.1.4-46 #131

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1. mahdi-hajian commented on Dec 11, 2020

   

   mahdi-hajian

   on Dec 11, 2020

   Author

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   in last version is wrong too
   Lua for Windows v5.1.5-52 Released
2. TFWol commented on Mar 6, 2023

   

   TFWol

   on Mar 6, 2023

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   That's a lua problem.

   -- you only get 200
   count = 0
   while count < 100 do
     number = math.random(200, 300)
     print(number)
     if number == 200 then
       break
     end
     count = count + 1
   end

   -- works properly
   math.randomseed(os.time())
   
   count = 0
   while count < 100 do
     number = math.random(200, 300)
     print(number)
     if number == 200 then
       break
     end
     count = count + 1
   end

   REF:
   https://stackoverflow.com/questions/18199844/lua-math-random-not-working
3. JJSax commented on Dec 31, 2024

   

   JJSax

   on Dec 31, 2024

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   This issue is more than a randomseed issue.

   print(os.time()) -- this prints a different time each time. 
   math.randomseed(os.time())
   for i = 1, 5 do 
     print(math.random(1, 100)) 
   end

   outputs this, notice the first number on every test. Each test was done several seconds apart from each other to ensure os.time() returned a new number.

   -- test 1
   42
   35
   28
   93
   33
   -- test 2
   42
   68
   82
   66
   65
   -- test 3
   42
   34
   91
   13
   28
   -- test 4
   42
   66
   46
   87
   59
   -- test 5
   42
   99
   100
   60
   91
   -- test 6
   42
   65
   9
   7
   54
   -- test 7
   42
   98
   64
   80
   85
   -- test 8
   42
   30
   18
   54
   17
   -- test 9
   42
   62
   36
   48
   43
   

   Running the same code on several online compilers this issue doesn't happen. Those compilers use Lua 5.4, one allowed me to use down to lua 5.3,2 and the issue was not a thing with that one either.

   It's possible this issue existed in Lua 5.1 which this project uses.