40k iPhone App dice roller

[Gottaa]

So I got myself a dice box, and still had to roll quite a few times so I figure a dice roller for the iPhone should be a pretty simple idea. There is one already out but just puts up a big grid of dice which I think is rather unfriendly so I'm thinking something like:

No. of Dice to roll: <scrolling numbers so could roll up to 999 dice>
Roll button, which changes to Re-roll after a roll with a Reset button appearing
Picture of 1 to 6 on a die, underneath the number of resulting rolls, so:
1 2 3 4 5 6
7 9 11 8 10 6
the a scatter dice option with up to 6 scatter dice, but it either being a hit or a random 360degree direction as the iphone using the arrows system wouldn't work as you don't spin the iPhone. The scatter dice option would roll 2d6 with each scatter dice and reveal the distance if it isn't a hit under the direction arrow
No music
dice rolling sounds when you press the button

Anything I'm missing ?

Oh and the re-roll would automatically take the lowest values first, or do I need an option like pressing the dice picture to re-roll the high/or low results ?

 

[Zed]

Why not (if this is a 40K app)

no of dice to roll.
Hit value - you could actually do this by entering the WS/BS or Str/Tou and it calculates the hit value.

Then it discards the misses.
Then it prompts you for your next value (ie S/T) and keeps the hits
then it asks for your save value and rolls vs the save telling you how many have.

So effectively you create the entire the Close Combat or Ranged Combat sequence.

Simple eh

or you could just do a basic dice rolling system. Bear in mind you probably cannot name it 40K dice roller without asking GW permission. they seem to be a bit anal at the monent on that.

 

[Gottaa]

I wasn't sure about going to far down that road or s/t ws/ws line for the reason of angering them, because I would in effect need to store that grid in my code, and I'm unsure if that could be considered a breach of copyright ? :/

Well as it's just going to be for me to start maybe I'll do everything with it, then if I decide to release it I'll fire an e-mail to them, but I wouldn't imagine I'd get a response

 

[Cullhaven]

How do you ensure you get the correct bell-curves and probability etc? I remember endless graphs in the old AD&D dungeonmasters handbook dealing with all that

I know some groups or Runequest players banned those d100 (looked like a golf ball covered in numbers) dice that came out because the skewed the probability factor and insisted on a d10 and a d20 for % rolls. I never had the maths to work stuff like that out, so wether they were right or wrong I have no idea.

 

[Zed]

Perhaps a way to just enter your target number similar to Invisible castle where you use

10d6.hits(4) to roll 10 dice and keep only the hits. (it then shows the numbers and counts your total successes against that number)

 

[Gottaa]

aye, that would work, though is there not some instances where you want to roll under the number you have rolled, like leadership ? it'll still be possible though, just need to make sure the interface is easy to understand

 

[Zed]

Just use some kind of paratemer to equal the equal to or above and equal to or less