Began implementing dice rolls in the maths parser

app/imports/math.js

@@ -1,8 +1,20 @@
 import { create, all } from 'mathjs';
+import { Random } from 'meteor/random'
+
 const math = create(all);
 math.import({
   'if': function(pred, a, b) {
       return pred ? a : b;
+  },
+  'roll': function(number, diceSize){
+    if (number > 100) throw 'Can only roll 100 dice at a time';
+    let rollTotal = 0;
+    let i, roll;
+    for (i = 0; i < number; i++){
+      roll = ~~(Random.fraction() * diceSize) + 1
+      rollTotal += roll;
+    }
+    return rollTotal;
   }
 });