Consolidated all sub-documents into character document to improve granularity significantly

Because just the top-level field changing invalidates everything in the sub-document, a single attribute change would trigger a re-calculation on all attributes and their dependents. This change should significantly improve performance.

rpg-docs/lib/functions/evaluate.js

@@ -0,0 +1,60 @@
+//evaluates a calculation string
+evaluate = function(charId, string){
+	if(!string) return string;
+	var char = Characters.findOne(charId, {fields: {_id: 1}});
+	string = string.replace(/\b[a-zA-Z]+\b/g, function(sub){
+		//fields
+		if(Schemas.Character.schema(sub)){
+			return char.fieldValue(sub)
+		}
+		//ability modifiers
+		var abilityMods = ["strengthMod", "dexterityMod", "constitutionMod", "intelligenceMod", "wisdomMod", "charismaMod"]
+		if( _.contains(abilityMods, sub) ){
+			var slice = sub.slice(0, - 3);
+			return char.abilityMod(slice);
+		}
+		if(sub === "level"){
+			return char.level();
+		}
+		return sub;
+	});
+	try{
+		result = math.eval(string);
+		return result
+	} catch(e){
+		console.log(e)
+		return string;
+	}	
+}
+
+//takes a string with {calculations} and returns it with the results 
+//of the calculations returned in place
+evaluateString = function(charId, string){
+	//define brackets as curly brackets around anything that isn't a curly bracket
+	if(!string) return string;
+	var brackets = /\{[^\{\}]*\}/g;
+	var result = string.replace(brackets, function(exp){
+		var exp = exp.replace(/(\{|\})/g, "") //remove brackets
+		var span = jQuery('<span/>', {
+			title: exp,
+			text: evaluate(charId, exp),
+			class: "calculatedValue"
+		});
+		return span.prop('outerHTML');
+	});
+	//this is going to return HTML, ensure it is santized!
+	return result;
+}
+
+//returns the value of the effect if it exists, 
+//otherwise returns the result of the calculation if it exists,
+//otherwise returns 0
+evaluateEffect = function(charId, effect){
+	if(_.isFinite(effect.value)){
+		return effect.value;
+	} else if(_.isString(effect.calculation)){
+		return +evaluate(charId, effect.calculation);
+	} else {
+		return 0;
+	}
+}