Hello,
I'm new on Solarus and by now I'm just practising a little. Solarus is great, but I just get stuck at lots of easy parts

Right now, I'm having two problems:
The first one is, I just can't figure out, how to display a normal dialogue, just like the one, that shows up, when you pick up a sword or something. How can I achieve this?
I've already searched the Video-Tutorials, the documentation and the source code of Mystery of Solarus but nope, no answer. I'm fine with the standard design but I just can't display a message...
The second one is, that I want to have a hole that teleports you somewhere, but only, if you have killed a particular enemy before.
How does this work? I've already tried giving the teleporter an ID and change the enabled value, like this..
main.lua:
solarus_logo.on_finished = function()
--here is some other code
local porter = sol.map:get_entity("dynamic_porter");
porter:set_enabled(false);
end
tentacle.lua:
function enemy:on_dead()
local porter = sol.map:get_entity("dynamic_porter");
porter.set_enabled(true);
end
But it just shows up the following error message in error.txt:
Error: In on_finished: [string "main.lua"]:25: attempt to call method 'get_entity' (a nil value)
So it would be very nice *hopeful grin* if anyone could help me with one of these problems, but since I don't want to bother you with basic questions all the time, my major question is:
Is there any other place where I can get more information? A tutorial for the LUA-API or such a thing? The French tutorials probably contain more information, but my French skills end with "Comment tu't appelles?" Everything is so unclear and confusing...
Well then, I hope anyone can help me

Please!
