Apple recently made this announcement regarding OpenGL: "Apps built using OpenGL and OpenCL will continue to run in macOS 10.14, but these legacy technologies are deprecated in macOS 10.14. Games and graphics-intensive apps that use OpenGL should now adopt Metal. Similarly, apps that use OpenCL...

Don't use error for debugging. It terminates the program. The problem is most likely not in the first iteration, but at a later time. Use assert or print instead. Actually, error is kind of useful to see if a branch of execution is ever reached. But that's pretty much all I can think of using it fo...

The problem has to be somewhere else. We need the rest of your code to help you. Best from I can tell, you do one of two things: - You name the variable as false (i.e. player.xvel = false) and then update, before changing the value. - You have some condition that is called before updating that make...

So, I have a simple snippet of code among much more code... if (newx > self.x) or (newx < self.x) then player.xvel = 0 end and when I run it, I get this error... Error player.lua:18 attempt to compare number to boolean Alright, seems rather straightforward. But then I try... error(newx) or... error(...

That is because pcall calls its first argument. Pcall is defined as follows: if you call pcall(f, ...), it calls f(...) in protected mode. You are giving it a string as a function to call, and this then errors. (You'll see that try[2] is "attempt to call a string value".) I'm not sure if ...

So here's my problem in a nutshell. When I do this... player.image = love.graphics.newImage("sprites/Dodger.png") error(player.image:type()) I get... Image which is just what I'd expect. But... when I use a protected call... player.image = love.graphics.newImage("sprites/Dodger.png&qu...