Slot quantity is now a computed value, added property viewer for slots

app/imports/api/creature/computation/engine/computeEndStepProperty.js

@@ -23,6 +23,7 @@ export default function computeEndStepProperty(prop, memo){
       computePropertyField(prop, memo, 'maxPrepared');
       break;
     case 'propertySlot':
+      computePropertyField(prop, memo, 'quantityExpected');
       computePropertyField(prop, memo, 'slotCondition');
       break;
     case 'roll':

app/imports/api/creature/computation/engine/evaluateCalculation.js

@@ -21,6 +21,9 @@ export default function evaluateCalculation({
     context,
     dependencies,
   };
+  if (typeof string !== 'string'){
+    string = string.toString();
+  }
   // Parse the string
   let calc;
   try {

app/imports/api/creature/denormalise/recomputeSlotFullness.js

@@ -23,10 +23,14 @@ export default function recomputeSlotFullness(ancestorId){
       }
     });
     let spaceLeft;
-    if (slot.quantityExpected === 0){
+    let expected = slot.quantityExpectedResult;
+    if (typeof expected !== 'number'){
+      expected = 1;
+    }
+    if (expected === 0){
       spaceLeft = null;
     } else {
-      spaceLeft = slot.quantityExpected - totalFilled;
+      spaceLeft = expected - totalFilled;
     }
     if (slot.totalFilled !== totalFilled || slot.spaceLeft !== spaceLeft){
       CreatureProperties.update(slot._id, {

app/imports/api/properties/Slots.js

@@ -22,9 +22,9 @@ let SlotSchema = new SimpleSchema({
 		type: String,
 	},
   quantityExpected: {
-    type: SimpleSchema.Integer,
-    defaultValue: 1,
-    min: 0,
+    type: String,
+    optional: true,
+    defaultValue: '1',
   },
   ignored: {
     type: Boolean,