This isn't the best way to do collisions as you'll run into problems when you have multiple things to check. Sadly I don't have time to e plain it right now, I'm sure someone else will. To fix your immediate problem however, you need to set blockcollision to false at the start of update. Essentially...

Do all of your images in greyscale then when you draw them you can set the colour to whatever you like.

If they connect to your server then surely you get their IP to be able to send them data back. What networking protocol are you using?

How much memory are you giving the GPU? Every time I have trouble with a raspberry pi playing video it's because I forgot to increase video memory. You can find it in raspi-config. Essentially they split the RAM between the CPU and GPU but I think it defaults to something really low like 64Mb to the...

You get one free clear at the start of the draw loop as love clears the screen for you ready to draw the new frame. As for the tint, yes it applies to everything drawn. You can use this to your advantage though, I draw all my UI assets in greyscale and let the user pick the UI colour.

Is the text being printed to the console? Your function added to the timer is calling print which adds text to the console.

Depends, whoever is running the server needs to have open ports.

Congratulations, the game looks awesome. Can't wait to play it.

just zip them up and rename from .zip to .love

I was wondering what that command was in Lua, in python it's I will use this in the future