Untitled

import java.util.Random

def diceString(5.0%2Fdocs%2Fapi%2F">String s) {
    s.replaceAll("(\\d+)d(\\d+)", "\$1.d(\$2)")
}

class DiceRoller {

    def private static generator = new 5.0%2Fdocs%2Fapi%2F">Random()

    public static 5.0%2Fdocs%2Fapi%2F">Integer d(5.0%2Fdocs%2Fapi%2F">Integer self, 5.0%2Fdocs%2Fapi%2F">Integer facets) {
       def results = []
        for( i in (1..self)) {
            results << (generator.nextInt(facets) + 1)
        }
        println "$results"
        return results.inject(0) { sum, value -> sum += value }
    }
}

use(DiceRoller) {
    Eval.me(diceString("3d6 + 3"))
}