I didn't know you could do that. This is good to know Works Perfect

Im trying glue object together using the weld joints. My goal is to add specific sensors to a main collision box. This way I can use collision callback to register head collision, foot collisions etc. The problem is I cant seem to get the weldjoints to work. I tried the wiki but the documentation is...

Ok thanks, the spatial hash is a good idea but then of course I have to make sure the object can't leave the region of the hash.

I'm making a 2d platformer. I have a table of all the dynamic objects in the game world. Right now I'm naively looping through the table and drawing all the objects in the table. But because the game world is much bigger than the window size most object dont make it on screen. Am I wasting resources...