Changed creature computations to leverage the MathJS parser (big deal)

app/lib/functions/evaluate.js

@@ -1,104 +0,0 @@
-// if we want to add more functions, consider pulling out into its own file
-(function() {
-    math.import({
-        "if": function(pred, a, b) {
-            return (!!(pred)) ? a : b;
-        }
-    });
-})();
-
-//evaluates a calculation string
-evaluate = function(charId, string, opts){
-    var spellListId = opts && opts.spellListId;
-	if (!string) return string;
-	string = string.replace(/\b[a-z,1-9]+\b/gi, function(sub){
-		//fields
-		if (Schemas.Character.schema(sub)){
-			return Characters.calculate.fieldValue(charId, sub);
-		}
-		//ability modifiers
-		var abilityMods = [
-			"strengthMod",
-			"dexterityMod",
-			"constitutionMod",
-			"intelligenceMod",
-			"wisdomMod",
-			"charismaMod",
-		];
-		if (_.contains(abilityMods, sub)){
-			var slice = sub.slice(0, -3);
-			try {
-				return Characters.calculate.abilityMod(charId, slice);
-			} catch (e){
-				return sub;
-			}
-		}
-		//class levels
-		if (/\w+levels?\b/gi.test(sub)){
-			//strip out "level"
-			var className = sub.replace(/levels?\b/gi, "");
-			var cls = Classes.findOne({charId: charId, name: className});
-			return cls && cls.level || sub;
-		}
-		//character level
-		if (sub.toUpperCase()  === "LEVEL"){
-			return Characters.calculate.level(charId);
-		}
-        if (spellListId && sub.toUpperCase() === "DC") {
-            var list = SpellLists.findOne(spellListId);
-            if (list && list.saveDC){
-                return evaluate(charId, list.saveDC);
-            }
-        }
-        if (spellListId && sub.toUpperCase() === "ATTACKBONUS") {
-            var list = SpellLists.findOne(spellListId);
-            if (list && list.attackBonus){
-                return evaluate(charId, list.attackBonus);
-            }
-        }
-		return sub;
-	});
-	try {
-		var result = math.eval(string);
-		return result;
-	} catch (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){
-		exp = exp.replace(/(\{|\})/g, ""); //remove curly brackets
-		return evaluate(charId, exp);
-	});
-	return result;
-};
-
-evaluateSpellString = function (charId, spellListId, 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){
-		exp = exp.replace(/(\{|\})/g, ""); //remove curly brackets
-		return evaluate(charId, exp, {spellListId});
-	});
-	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;
-	}
-};