LÖVE

Posted: **Sat Jul 05, 2014 11:26 pm**

Hey all, new here. Not a great programmer by any means, but thought I'd try my hand at an RPG anyway. I don't know how people typically do these things, but I just pull all the NPC data from a table in a file, a table which includes a function that occurs when the protagonist collides with an NPC. Anyway, the one NPC in the source below (he's the only one standing) will prompt a messagebox, and after pressing 'T', the hero will move to a different location in the map (just testing). After doing this once, or multiple times, I get a blue screen which says "Attempt to Yield Across C-Call Boundary". I've tried to look up what this means and I have failed. I have never used coroutines before, so I'm sure I'm just yucking something up.

The pertinent code is as follows. The following is the function in the table in the file I pull from:

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confront = function()
	msgbox.msg ="Poop is brown"
	msgbox.visible = true
	scenepause = true
	while scenepause == true do coroutine.yield() end
	heromapx = 500
end

And then upon touching an NPC, I pull that function into activescript as a coroutine in love.update:

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	if npcconfront ~= 0 then activescript = coroutine.create(script.npcs[npcconfront].confront)	end

And then I continually run activescript at the end of love.update until the coroutine is dead:

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	if coroutine.status(activescript) then coroutine.resume(activescript) end

Again, I apologize that my code is so ugly!

Here's the LOVE file: http://www.cucprogramtracker.com/rpg%20game.love

Posted: **Sun Jul 06, 2014 8:09 am**

You run confront even without a coroutine.resume, sometimes, and because you've got an npc that yields, nothing's "catching" that, and you end up "yielding" back to the engine before it stops it. Also, please indent your code.

LÖVE

Attempt to Yield Across C-Call Boundary

Attempt to Yield Across C-Call Boundary

Re: Attempt to Yield Across C-Call Boundary