Camera movement and cursors fixed

I fixed the camera movement. Previously it jerked to the center of the map whenever a player moved, but it now smoothly follows the players. 

Player 1 cursor is now dependent on the player's position on screen, not the ccenter of the screen. Player 2's cursor will reamin in the last position it was pointed in now rather than defaulting to the right.

Mob pathfinding is in development, but as of now is not in the game. Hopefully mobs will be added in the next two weeks.