From 79cf7d2bb97a001b2e37d61ac7761f57357b8302 Mon Sep 17 00:00:00 2001
From: Tyler Renelle <tylerrenelle@gmail.com>
Date: Thu, 6 Sep 2012 12:27:41 -0400
Subject: [PATCH] use linear growth TNL algorithm

---
 lib/app/index.js       | 2 +-
 lib/app/scoring.js     | 2 +-
 src/app/index.coffee   | 5 +++--
 src/app/scoring.coffee | 2 +-
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/app/index.js b/lib/app/index.js
index 5b9c3073c8..62f90d8073 100644
--- a/lib/app/index.js
+++ b/lib/app/index.js
@@ -59,7 +59,7 @@ get('/:uidParam?', function(page, model, _arg, next) {
       reroll: content.items.reroll
     });
     model.fn('_user._tnl', '_user.stats.lvl', function(lvl) {
-      return (50 * Math.pow(lvl, 2) - 150 * lvl + 200) / 5;
+      return (lvl * 100) / 5;
     });
     model.refList("_habitList", "_user.tasks", "_user.habitIds");
     model.refList("_dailyList", "_user.tasks", "_user.dailyIds");
diff --git a/lib/app/scoring.js b/lib/app/scoring.js
index 7f8434bc4b..aa4a810277 100644
--- a/lib/app/scoring.js
+++ b/lib/app/scoring.js
@@ -205,7 +205,7 @@ module.exports.tally = function(user, momentDate) {
   lvl = 0;
   while (lvl < (user.get('stats.lvl') - 1)) {
     lvl++;
-    expTally += (50 * Math.pow(lvl, 2) - 150 * lvl + 200) / 5;
+    expTally += (lvl * 100) / 5;
   }
   return user.push('history.exp', {
     date: new Date(),
diff --git a/src/app/index.coffee b/src/app/index.coffee
index 1bc1f4f234..6d98d87399 100644
--- a/src/app/index.coffee
+++ b/src/app/index.coffee
@@ -47,8 +47,9 @@ get '/:uidParam?', (page, model, {uidParam}, next) ->
       reroll: content.items.reroll
 
     model.fn '_user._tnl', '_user.stats.lvl', (lvl) ->
-      # http://tibia.wikia.com/wiki/Formula 
-      (50 * Math.pow(lvl, 2) - 150 * lvl + 200)/5
+      # see https://github.com/lefnire/habitrpg/issues/4
+      # also update in scoring.coffee. TODO create a function accessible in both locations 
+      (lvl*100)/5
     
     # Default Tasks
     model.refList "_habitList", "_user.tasks", "_user.habitIds"
diff --git a/src/app/scoring.coffee b/src/app/scoring.coffee
index bf2a632b14..698cc7be2f 100644
--- a/src/app/scoring.coffee
+++ b/src/app/scoring.coffee
@@ -166,5 +166,5 @@ module.exports.tally = (user, momentDate) ->
   lvl = 0 #iterator
   while lvl < (user.get('stats.lvl')-1)
     lvl++
-    expTally += (50 * Math.pow(lvl, 2) - 150 * lvl + 200)/5
+    expTally += (lvl*100)/5
   user.push 'history.exp',  { date: new Date(), value: expTally } 
\ No newline at end of file