Mob movement smoothening + Bugfixes

* Mobs now move at a tickrate per second of 2 as opposed to less than 1 before.
* How lerping works was changed slightly, mobs are bumped down to half the speed to account for the higher tickrate.
* Damage formula was altered to more closely match the OG game.

src/MobManager.hpp

@@ -104,5 +104,5 @@ namespace MobManager {
     void killMob(CNSocket *sock, Mob *mob);
     void giveReward(CNSocket *sock);
     std::pair<int,int> lerp(int, int, int, int, int);
-    std::pair<int,int> getDamage(int, int, bool);
+    std::pair<int,int> getDamage(int, int, bool, int);
 }