Changed how effects are applied and removed to enable effects expiring after a set duration.

rpg-docs/lib/functions/buffsToCharacter.js

@@ -1,11 +1,42 @@
-pushBuffs =  function(id, buffArray){
+//give a character a set of buffs that expire after [duration]
+pushBuffs =  function(id, buffArray, duration){
 	_.each(buffArray, function(buff){
-		Characters.update(id, {$push: {"buff.stat": buff.effect}});
+		var pushObject = {};
+		if(duration > 0){
+			//expiry time is now plus duration
+			var expiry = Characters.findOne(id, {fields: {time: 1}}).time + duration;
+			//ensure the effect has an id
+			buff.effect._id = buff.effect._id || Random.id();
+			//build the expiration object
+			var expiration = {
+				stat: buff.stat,
+				effectId: buff.effect._id,
+				expiry: expiry
+			};
+			//push expiration object to character
+			Characters.update(id, {$push: {expirations: expiration } });
+		}
+		//push the effect to the character
+		pushObject[buff.stat] = buff.effect;
+		Characters.update(id, {$push: pushObject});
 	});
 };
 
+//pull all the buffs listed in the buffArray
 pullBuffs = function(id, buffArray){
 	_.each(buffArray, function(buff){
-		Characters.update(id, {$pull: {"buff.stat": {_id: buff.effect._id} } });
+		pullEffect(id, buff.effect._id);
 	});
-};
+};
+
+//pull a single effect by stat and id
+pullEffect = function(id, stat, effectId){
+	var pullObject = {};
+	pullObject[stat] = {_id: effectId};
+	Characters.update(id, {$pull: pullObject });
+}
+
+//pull an expiry by id
+pullExpiry = function(id, expiryId){
+	Characters.update(id, {$pull: {expirations: {_id: expiryId} } });
+}