Please don't double (or triple) post.

Like love.graphics.setColor does without SpriteBatches, SpriteBatch:setColor affects the colour of the sprites added after the call.

But as was explained above, that's because the iterators specifically have special codepaths that are apparently sensitive to the function name. We have also seen that if you name the locals the same, it does have a (very small) positive effect. Anyway, it seems like the moral of the story, as ever,...

If you just want to draw it, can't you just the entire screen to a Canvas when you want to create the "screenshot", then draw part of that Canvas with a Quad?

If you just want one string containing all of the file's contents you can just use love.filesystem.read. Alternatively, if you want to iterate over all lines, there is love.filesystem.lines. Lastly, if you need something more complex you can create a File object and read it that way.

Well, let's see how we could calculate the scale factor and offset: local xscale = actual_width/desired_width local yscale = actual_height/desired_height local scale = math.min(xscale, yscale) -- Maybe also call math.floor, if you want local xoffset = (actual_width-desired_width*scale)/2 local yoffs...

I suggets: self.active = (active == true) In this special case you mean probably this?: self.active = (type(active) == "boolean") and active or true; The intended default for the ommited parameter is true here. I can't believe neither of you posted the obvious solution: self.active = acti...

I took a quick look at the library, and it seems to expect you to call the message_loop function in order to actually receive messages.

I should probably note that the setmetatable call is useless, since it sets the metatable of a temporary table you immediately discard. The usual way people do this is by creating these functions once, instead of for every object, and then making objects have a metatable with an __index metafield th...

Well, the call site change is simple: newPlayer.load(newPlayer) -- is equivalent to newPlayer:load() As for the definition site, you can just name the first parameter self. A similar shorthand exists there: function sometable:somefunc(arg) end -- is equivalent to function sometable.somefunc(self, ar...