UI
	- User Interface
	Game
		- Main loop
	StateManager
		- Keep track in what state game is
	State
		- Game bahaviour logic
		- Decide what to do when updating and with inputs
	InputManager
		- Handle Input Queue
		- Execute InputActions
	InputAction
		- Move Camera, Zoom, Select etc.
		- DoAction does all the action
	ObjectManager
		- Creates and handles all GameObjects
		QuadTree
			- Keeps track of object locations
		GameObject
			- Objects you can see in the UI
				- Includes blocking objects, like houses, walls and trees.
			Character
			- Objects that participate in the "game"
				Behavior
					- What will AI character do
			Item
				- Objects Characters can use (weapons, armor etc.)
	CameraSystem
		- Keeps track of coordinates of what is shown in window
	GameArea
		- Info of full map
		
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	Game has different States:
	Init
		- Load all objects
	GameState
		- Game is running
	Pause
		- Game is paused 
		- User can view map, give commands to GameObjects, but objects are not moving.
	End
		- Show statistics
	
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	On UserInput current state checks if input is allowed in this state and InputManager adds inputs to queues and returns those to State at Update.
	
	User can zoom in/out camera. Game will only draw object on view (using QuadTree).
	
	QuadTree is also used to check collisions and when calculating routes to target.