Random (again...)

[+TheHarvesters]

...still can't get this work satisfactorily on my Oregon.

 

I have the following in the Author script section:

 

require "math"

math.randomseed( os.time() )

math.random(); math.random(); math.random()

-- note these extra random calls are supposed to 'clear' the not-so-very-random first few calls that happen.

 

and a function called randomroll with the following lua script:

 

dieroll=mat.random(6)

 

On the emulator this works just fine, giving me (seemingly) very realistic random 'rolls' between 1 and 6.

 

However when tested 'in the field' I just get 5, 6, 5, 6... etc.

 

Can someone explain/help please?

 

many thanks,

 

Paul.

[+TheHarvesters]

Okay, I have now thankfully solved this...

 

In my RandomDieRoll function I now have BOTH the following lines

 

math.randomseed( os.time() )

DieRoll=math.random(6)

 

previously I was just setting the seed for randomisation once in the author script - it seems this is less effective on the Oregon than in the PC emulator, just giving me a skew to the upper numbers.

 

By resetting the seed each time the virtual die is rolled I get a good variation.

 

Woo hoo! one step closer to finishing this thing...

 

oh, and ... Hi Bernie! 8)

[matejcik]

you could also implement your own RNG. here's three of them (in C, but the first two are easily translated to Lua) : http://www.daniweb.com/code/snippet216329.html

then you would get the same results on all devices

[+Tequila]

URWIGO has random numbers built into it.

[+TheHarvesters]

URWIGO has random numbers built into it.

 

Thanks for your responses - I'll consider the better solutions you offer above, but I'm just delighted that I'm getting a working solution now, so I'm in no rush - other things to sort out.

 

re: Urwigo - I took a look at that. It looks pretty!, and those features would be good, but I was so far into using Earwigo, I didn't want to have to learn another tool. Earwigo has its advantages too of course.

 

When I get to look at building another cartridge (I can't stop having ideas!) then I'll re-consider Urwigo for that.