TROLL a dice programming language

TROLL is a "language for specifying dice-roll mechanisms" {@see http://hjemmesider.diku.dk/~torbenm/Troll/}.

• http://hjemmesider.diku.dk/~torbenm/Troll/
• https://www.cs.tufts.edu/comp/150PLD/Papers/Troll.pdf

Leveraging the syntax, or a subset of it, would allow the dice roller to conditionally handle D&D Critical Hits or Kids on Bikes' Explosions

While you can download TROLL as a command-line binary, you need to have Moscow ML installed (:-1:) & run it in a terminal. Besides, we want to eventually VISUALIZE the dice rolls, we only want to borrow the syntax feature-set, and run the program in browser.

Challenges

The language design for TROLL to produce an executable and a dice-rolling web-app's needs differ.

• Using a TROLL binary, you pass in a dice-roll mechanic and it will roll it for you.
• Using the web-app, we would want to SHOW the dice-roll, and if needed pass the result back (to handle conditions/loops).
• TROLL doesn't have syntax for Damage Type annotations
• TROLL doesn't have annotations for dice-color/-id.

Problem

Pressing the + button creates 2 new rolls.

It's possible this is due to react developer tools. I think that may be the case because the console.log inside rollFactory shows the source once from characterService.ts and another from react_devtools_backend.js.