Calling a function in another class requires target? Is it a bug?

uploading now here: http://youtu.be/ekvUF99cEBM

its very basic for do a video but with my bad english better a video than explain it with words :smiley:

you have a problem with some concepts like me when begin last month (and now), its a slow learning without basic concepts about engines or ‘make games’ but with time and help of other users with more experience, we can learn something. :wink: