camera_render now renders the target block and the eight blocks around it. This is very laggy at the moment, but it works.

I will have to investigate how I can optimize the program to reduce speed it up. At the moment, it is too laggy to play.
I will need to look into fully utilizing the hardware features of SDL now (I want to the graphics card to do more of the work... it seems like my computer is doing too much work at the moment...)
Also I plan to add a framerate counter similar to my work in GridVenture.