[example] basic tile based drawing with camera

[alex.symbroson]

In case you want to create a tile vased game you often need a camera to follow tge player or smth. So I created a little example for you. I tried to make it as short and efficient as possible without losing readability - will need your feedback to be sure it is :)

On the request of @ManuelLopes I will also make an example with pathfinding. I had posted an A* example in the past - so I will just take it and include it somehow to the current code

happy coding!

[Manuel Lopes]

very thanks alex,you are great

[Valerio Falco]

very thanks ale

[alex.symbroson]

I found out that my astar implementation was very inefficient. Most implementations are using a linked list, or even binary trees for that. So I want to suggest this site for the astar algorithm in javascript:
https://briangrinstead.com/blog/astar-search-algorithm-in-javascript/

Best regards :)