Started work on checks

app/imports/api/creature/actions/doCheck.js

@@ -0,0 +1,40 @@
+import SimpleSchema from 'simpl-schema';
+import { ValidatedMethod } from 'meteor/mdg:validated-method';
+import { RateLimiterMixin } from 'ddp-rate-limiter-mixin';
+import Creatures from '/imports/api/creature/Creatures.js';
+import { assertEditPermission } from '/imports/api/creature/creaturePermissions.js';
+import roll from '/imports/parser/roll.js';
+
+const doAction = new ValidatedMethod({
+  name: 'creature.doCheck',
+  validate: new SimpleSchema({
+    actionId: SimpleSchema.RegEx.Id,
+    targetId: {
+      type: String,
+      regEx: SimpleSchema.RegEx.Id,
+      optional: true,
+    },
+  }).validator(),
+  mixins: [RateLimiterMixin],
+  rateLimit: {
+    numRequests: 10,
+    timeInterval: 5000,
+  },
+  run({creatureId, attributeName}) {
+    let creature = Creatures.findOne(creatureId);
+    assertEditPermission(creature, this.userId);
+		return doCheckWork({attributeName, creature});
+  },
+});
+
+function doCheckWork({attributeName, creature}){
+  let att = creature.variables[attributeName];
+  if (!att) throw new Meteor.Error('No such attribute',
+    `This creature does not have a ${attributeName} property`);
+  let bonus = att.attributeType === 'ability'? att.modifier : att.value;
+  //Always roll 2d20 and let the advantage be decided in UI
+  let rolls = roll(2,20);
+  return {rolls, bonus};
+}
+
+export default doAction;