Nice one! There are a few things that could be improved, as for example you shouldn't be able to jump in mid-air (it happens only when you drop down from a platform), but overall it's a good base.
¡Un saludo!
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Thank you men!, i did it only with teaching purposes (Godot 3 Videotutorials):
https://www.youtube.com/playlist?list=PL-EPeghw5sXih_SZsbYO1prYenBF0GIf-&playnex...
I really aprecciate your coment! thank you very much!