Enemy should spawn and chase the player down.
Fixed issue where random number generator was being recreated on every method call, causing calls to have duplicate values.
Removed debug statement.
Don't draw the enemy if it isn't visible.
Enemy uses pathfinder class built into RogueSharp to find shortest path unobstructed by walls. Still need to figure out diagonal movement.
Removed ability to move diagonally.
Merge branch 'feature/enemies' into develop